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| 19-4965; Rev 0; 9/09 KIT ATION EVALU LE B AVAILA High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch General Description The MAX2032 high-linearity passive upconverter or downconverter mixer is designed to provide +33dBm IIP3, 7dB NF, and 7dB conversion loss for a 650MHz to 1000MHz RF frequency range to support a multitude of base-station applications. With a 650MHz to 1250MHz LO frequency range, this particular mixer is ideal for high-side LO injection architectures. For a pin-to-pincompatible mixer meant for low-side LO injection, refer to the MAX2029. In addition to offering excellent linearity and noise performance, the MAX2032 also yields a high level of component integration. This device includes a doublebalanced passive mixer core, a dual-input LO selectable switch, and an LO buffer. On-chip baluns are also integrated to allow for a single-ended RF input for downconversion (or RF output for upconversion) and single-ended LO inputs. The MAX2032 requires a nominal LO drive of 0dBm, and supply current is guaranteed to be below 100mA. The MAX2032 is pin compatible with the MAX2039/ MAX2041 1700MHz to 2200MHz mixers, making this family of passive upconverters and downconverters ideal for applications where a common PCB layout is used for both frequency bands. The MAX2032 is available in a compact 20-pin thin QFN package (5mm x 5mm) with an exposed pad. Electrical performance is guaranteed over the extended -40C to +85C temperature range. Features 650MHz to 1000MHz RF Frequency Range 650MHz to 1250MHz LO Frequency Range 570MHz to 900MHz LO Frequency Range (Refer to the MAX2029 Data Sheet) DC to 250MHz IF Frequency Range 7dB Conversion Loss +33dBm Input IP3 +24dBm Input 1dB Compression Point 7dB Noise Figure Integrated LO Buffer Integrated RF and LO Baluns Low -3dBm to +3dBm LO Drive Built-In SPDT LO Switch with 49dB LO1 to LO2 Isolation and 50ns Switching Time Pin Compatible with the MAX2039/MAX2041 1700MHz to 2200MHz Mixers External Current-Setting Resistor Provides Option for Operating Mixer in Reduced-Power/ReducedPerformance Mode MAX2032 Ordering Information PART MAX2032ETP+ MAX2032ETP+T TEMP RANGE -40C to +85C -40C to +85C PIN-PACKAGE 20 Thin QFN-EP* 20 Thin QFN-EP* Applications WCDMA/LTE and cdma2000 (R) Base Stations GSM 850/GSM 900 2G and 2.5G EDGE Base Stations Integrated Digital Enhanced Network (iDEN(R)) Base Stations WiMAXTM Base Stations and Customer Premise Equipment Predistortion Receivers Microwave and Fixed Broadband Wireless Access Wireless Local Loop Digital and SpreadSpectrum Communication Systems +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. *EP = Exposed pad. Pin Configuration/ Functional Diagram GND GND 17 IF+ IF- TOP VIEW + VCC RF TAP GND GND 20 19 18 16 GND 1 2 3 4 EP 5 15 LO2 VCC GND GND LO1 MAX2032 14 13 12 11 LOBIAS cdma2000 is a registered trademark of Telecommunications Industry Association. iDEN is a registered trademark of Motorola, Inc. WiMAX is a trademark of WiMAX Forum. 6 VCC 7 8 VCC 9 LOSEL 10 GND ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch MAX2032 ABSOLUTE MAXIMUM RATINGS VCC to GND ...........................................................-0.3V to +5.5V RF (RF is DC shorted to GND through a balun)..................50mA LO1, LO2 to GND ..................................................-0.3V to +0.3V IF+, IF- to GND ...........................................-0.3V to (VCC + 0.3V) TAP to GND ...........................................................-0.3V to +1.4V LOSEL to GND ...........................................-0.3V to (VCC + 0.3V) LOBIAS to GND..........................................-0.3V to (VCC + 0.3V) RF, LO1, LO2 Input Power (Note 1) ...............................+20dBm Continuous Power Dissipation (Note 2)....................................5W JA (Notes 3, 4)..............................................................+38C/W JC (Notes 2, 3)..............................................................+13C/W Operating Temperature Range (Note 5) .....TC = -40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C Note 1: Maximum, reliable, continuous input power applied to the RF and IF port of this device is +12dBm from a 50 source. Note 2: Based on junction temperature TJ = TC + (JC x VCC x ICC). This formula can be used when the temperature of the exposed pad is known while the device is soldered down to a PCB. See the Applications Information section for details. The junction temperature must not exceed +150C. Note 3: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a fourlayer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. Note 4: Junction temperature TJ = TA + (JA x VCC x ICC). This formula can be used when the ambient temperature of the PCB is known. The junction temperature must not exceed +150C. Note 5: TC is the temperature on the exposed pad of the package. TA is the ambient temperature of the device and PCB. Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS (Typical Application Circuit, VCC = 4.75V to 5.25V, no RF signals applied, TC = -40C to +85C. IF+ and IF- are DC grounded through an IF balun. Typical values are at VCC = 5V, TC = +25C, unless otherwise noted.) PARAMETER Supply Voltage Supply Current LOSEL Input Logic-Low LOSEL Input Logic-High SYMBOL VCC ICC VIL VIH 2 CONDITIONS MIN 4.75 TYP 5.00 85 MAX 5.25 100 0.8 UNITS V mA V V RECOMMENDED AC OPERATING CONDITIONS PARAMETER SYMBOL CONDITIONS Components tuned for the 700MHz band (Table 1), C1 = 7pF, C5 = 3.3pF (Notes 6, 7) RF Frequency fRF Components tuned for the 800MHz/900MHz cellular band (Table 1), C1 = 82pF, C5 = 2.0pF (Note 6) (Notes 6, 7) IF frequency range depends on external IF transformer selection (Note 6) MIN 650 TYP MAX 850 MHz 800 650 0 -3 1000 1250 250 +3 MHz MHz dBm UNITS LO Frequency IF Frequency LO Drive Level fLO fIF PLO 2 _______________________________________________________________________________________ High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch AC ELECTRICAL CHARACTERISTICS (800MHz/900MHz CELLULAR BAND DOWNCONVERTER OPERATION) (Typical Application Circuit, optimized for the 800MHz/900MHz cellular band (see Table 1), C1 = 82pF, C5 = 2pF, L1 and C4 not used, VCC = 4.75V to 5.25V, RF and LO ports driven from 50 sources, PLO = -3dBm to +3dBm, PRF = 0dBm, fRF = 815MHz to 1000MHz, fLO = 960MHz to 1180MHz, fIF = 160MHz, fLO > fRF, TC = -40C to +85C, unless otherwise noted. Typical values are at VCC = 5V, PRF = 0dBm, PLO = 0dBm, fRF = 910MHz, fLO = 1070MHz, fIF = 160MHz, TC = +25C, unless otherwise noted.) (Note 8) PARAMETER Conversion Loss SYMBOL LC Flatness over any one of three frequency bands (fIF = 160MHz): fRF = 827MHz to 849MHz fRF = 869MHz to 894MHz fRF = 880MHz to 915MHz TC = +25C to -40C TC = +25C to +85C P1dB IIP3 (Note 9) fRF1 = 910MHz, fRF2 = 911MHz, PRF = 0dBm/tone, fLO = 1070MHz, PLO = 0dBm, TC = +25C (Note 10) TC = +25C to -40C TC = +25C to +85C 29 CONDITIONS MIN TYP 7.0 MAX UNITS dB MAX2032 Conversion Loss Flatness 0.18 dB Conversion Loss Variation Over Temperature Input 1dB Compression Point Input Third-Order Intercept Point Input IP3 Variation Over Temperature 2LO - 2RF Spurious Response at IF 3LO - 3RF Spurious Response at IF Noise Figure Noise Figure Under Blocking (Note 11) LO1-to-LO2 Isolation (Note 10) Maximum LO Leakage at RF Port Maximum LO Leakage at IF Port LO Switching Time Minimum RF-to-IF Isolation RF Port Return Loss -0.3 0.2 24 33 0.3 -0.3 65 75 dB dBm dBm IIP3 2x2 3x3 NF dB dBc dBc dB dB dB dBm dBm ns dB dB Single sideband PBLOCKER = +8dBm PBLOCKER = +12dBm LO2 selected, PLO = +3dBm, TC = +25C LO1 selected, PLO = +3dBm, TC = +25C PLO = +3dBm PLO = +3dBm 50% of LOSEL to IF, settled within 2 degrees 42 42 7.0 18 22 51 49 -27 -35 50 45 17 LO Port Return Loss LO1/LO2 port selected, LO2/LO1, RF, and IF terminated into 50 LO1/LO2 port unselected, LO2/LO1, RF, and IF terminated into 50 LO driven at 0dBm, RF terminated into 50 28 dB 30 17 dB IF Port Return Loss _______________________________________________________________________________________ 3 High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch MAX2032 AC ELECTRICAL CHARACTERISTICS (700MHz BAND DOWNCONVERTER OPERATION) (Typical Application Circuit, optimized for the 700MHz band (see Table 1), C1 = 7pF, C5 = 3.3pF, L1 and C4 are not used, VCC = 4.75V to 5.25V, RF and LO ports driven from 50 sources, PLO = -3dBm to +3dBm, PRF = 0dBm, fRF = 650MHz to 850MHz, fLO = 790MHz to 990MHz, fIF = 140MHz, fLO > fRF, TC = +25C, unless otherwise noted. Typical values are at VCC = 5V, PRF = 0dBm, PLO = 0dBm, fRF = 750MHz, fLO = 890MHz, fIF = 140MHz, TC = +25C, unless otherwise noted.) (Notes 8, 10) PARAMETER Conversion Loss Input 1dB Compression Point Input Third-Order Intercept Point LO Leakage at IF Port LO Leakage at RF Port RF-to-IF Isolation 2LO - 2RF Spurious Response 3LO - 3RF Spurious Response 2x2 3x3 SYMBOL LC P1dB IIP3 fRF = 750MHz, PRF = 0dBm, PLO = 0dBm fRF1 = 749MHz, fRF2 = 750MHz, fLO = 890MHz, PRF = 0dBm/tone, PLO = 0dBm PLO = +3dBm PLO = +3dBm 36 29 CONDITIONS MIN 6.1 TYP 6.9 24 33 -33 -20 49 65 75 MAX 8.1 UNITS dB dBm dBm dBm dBm dB dBc dBc AC ELECTRICAL CHARACTERISTICS (UPCONVERTER OPERATION) (Typical Application Circuit, L1 = 4.7nH, C4 = 6pF, C1 = 82pF, C5 not used, VCC = 4.75V to 5.25V, RF and LO ports are driven from 50 sources, PLO = -3dBm to +3dBm, PIF = 0dBm, fRF = 815MHz to 1000MHz, fLO = 960MHz to 1180MHz, fIF = 160MHz, fLO > fRF, TC = -40C to +85C, unless otherwise noted. Typical values are at VCC = 5V, PIF = 0dBm, PLO = 0dBm, fRF = 910MHz, fLO = 1070MHz, fIF = 160MHz, TC = +25C, unless otherwise noted.) (Note 8) PARAMETER Conversion Loss SYMBOL LC Flatness over any one of three frequency bands (fIF = 160MHz): fRF = 827MHz to 849MHz fRF = 869MHz to 894MHz fRF = 880MHz to 915MHz TC = +25C to -40C TC = +25C to +85C P1dB IIP3 (Note 9) fIF1 = 160MHz, fIF2 = 161MHz, PIF = 0dBm/tone, fLO = 1070MHz, PLO = 0dBm, TC = +25C (Note 10) TC = +25C to -40C TC = +25C to +85C 28 CONDITIONS MIN TYP 7.4 MAX UNITS dB Conversion Loss Flatness 0.3 dB Conversion Loss Variation Over Temperature Input 1dB Compression Point Input Third-Order Intercept Point Input IP3 Variation Over Temperature LO 2IF Spur LO 3IF Spur Output Noise Floor -0.3 0.4 24 31 1.2 -0.9 64 83 dB dBm dBm IIP3 dB dBc dBc dBm/Hz POUT = 0dBm (Note 11) -167 Note 6: Note 7: Note 8: Note 9: Note 10: Note 11: Operation outside this range is possible, but with degraded performance of some parameters. Not production tested. All limits include external component losses. Output measurements are taken at IF or RF port of the Typical Application Circuit. Compression point characterized. It is advisable not to continuously operate the mixer RF/IF inputs above +12dBm. Guaranteed by design. Measured with external LO source noise filtered, so its noise floor is -174dBm/Hz. This specification reflects the effects of all SNR degradations in the mixer, including the LO noise as defined in Application Note 2021: Specifications and Measurement of Local Oscilator Noise in Integrated Circuit Base Station Mixers. 4 _______________________________________________________________________________________ High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch MAX2032 Typical Operating Characteristics (Typical Application Circuit, optimized for the 800MHz/900MHz cellular band (see Table 1), C1 = 82pF, C5 = 2pF, L1 and C4 not used, VCC = 5.0V, PLO = 0dBm, PRF = 0dBm, fLO > fRF, fIF = 160MHz, TC = +25C, unless otherwise noted.) Downconverter Curves CONVERSION LOSS vs. RF FREQUENCY MAX2032 toc01 CONVERSION LOSS vs. RF FREQUENCY MAX2032 toc02 CONVERSION LOSS vs. RF FREQUENCY MAX2032 toc03 10 10 10 9 CONVERSION LOSS (dB) TC = +85C TC = -25C TC = +25C 9 CONVERSION LOSS (dB) PLO = -3dBm, 0dBm, +3dBm 9 CONVERSION LOSS (dB) VCC = 4.75V, 5.0V, 5.25V 8 8 8 7 7 7 6 TC = -40C 6 6 5 800 850 900 950 1000 RF FREQUENCY (MHz) 5 800 850 900 950 1000 RF FREQUENCY (MHz) 5 800 850 900 950 1000 RF FREQUENCY (MHz) INPUT IP3 vs. RF FREQUENCY MAX2032 toc04 INPUT IP3 vs. RF FREQUENCY MAX2032 toc05 INPUT IP3 vs. RF FREQUENCY PRF = 0dBm/TONE VCC = 5.25V MAX2032 toc06 37 35 33 31 PRF = 0dBm/TONE 37 35 33 31 29 27 25 23 TC = +85C, +25C PRF = 0dBm/TONE PLO = +3dBm 37 35 33 31 PLO = 0dBm INPUT IP3 (dBm) INPUT IP3 (dBm) TC = -40C 29 TC = -25C 27 25 23 800 850 900 950 RF FREQUENCY (MHz) 1000 PLO = -3dBm INPUT IP3 (dBm) VCC = 4.75V 29 27 25 23 VCC = 5.0V 800 850 900 950 RF FREQUENCY (MHz) 1000 800 850 900 950 RF FREQUENCY (MHz) 1000 NOISE FIGURE vs. RF FREQUENCY MAX2032 toc07 NOISE FIGURE vs. RF FREQUENCY MAX2032 toc08 NOISE FIGURE vs. RF FREQUENCY MAX2032 toc09 10 10 10 9 TC = +25C NOISE FIGURE (dB) 8 TC = +85C 9 NOISE FIGURE (dB) 9 NOISE FIGURE (dB) 8 8 7 7 PLO = -3dBm, 0dBm, +3dBm 6 7 VCC = 4.75V, 5.0V, 5.25V 6 6 TC = -40C 5 800 850 900 950 1000 RF FREQUENCY (MHz) TC = -25C 5 800 850 900 950 1000 RF FREQUENCY (MHz) 5 800 850 900 950 1000 RF FREQUENCY (MHz) _______________________________________________________________________________________ 5 High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch MAX2032 Typical Operating Characteristics (continued) (Typical Application Circuit, optimized for the 800MHz/900MHz cellular band (see Table 1), C1 = 82pF, C5 = 2pF, L1 and C4 not used, VCC = 5.0V, PLO = 0dBm, PRF = 0dBm, fLO > fRF, fIF = 160MHz, TC = +25C, unless otherwise noted.) Downconverter Curves 2LO - 2RF RESPONSE vs. RF FREQUENCY MAX2032 toc10 2LO - 2RF RESPONSE vs. RF FREQUENCY MAX2032 toc11 2LO - 2RF RESPONSE vs. RF FREQUENCY PRF = 0dBm VCC = 4.75V, 5.0V MAX2032 toc12 85 85 PRF = 0dBm TC = +25C PRF = 0dBm 85 PLO = 0dBm P = -3dBm LO 2LO - 2RF RESPONSE (dBc) 2LO - 2RF RESPONSE (dBc) TC = +85C 65 65 2LO - 2RF RESPONSE (dBc) 75 75 75 65 55 TC = -40C TC = -25C 55 PLO = +3dBm 55 VCC = 5.25V 45 45 45 35 800 850 900 950 1000 RF FREQUENCY (MHz) 35 800 850 900 950 1000 RF FREQUENCY (MHz) 35 800 850 900 950 1000 RF FREQUENCY (MHz) 3LO - 3RF RESPONSE vs. RF FREQUENCY MAX2032 toc13 3LO - 3RF RESPONSE vs. RF FREQUENCY MAX2032 toc14 3LO - 3RF RESPONSE vs. RF FREQUENCY PRF = 0dBm MAX2032 toc15 95 PRF = 0dBm TC = +25C TC = +85C 95 PRF = 0dBm PLO = 0dBm 95 3LO - 3RF RESPONSE (dBc) 3LO - 3RF RESPONSE (dBc) 3LO - 3RF RESPONSE (dBc) 85 85 85 VCC = 5.25V 75 75 75 VCC = 5.0V 65 VCC = 4.75V 65 TC = -40C, -25C 55 800 850 900 950 1000 RF FREQUENCY (MHz) 65 PLO = -3dBm PLO = +3dBm 55 800 850 900 950 1000 RF FREQUENCY (MHz) 55 800 850 900 950 1000 RF FREQUENCY (MHz) INPUT P1dB vs. RF FREQUENCY MAX2032 toc16 INPUT P1dB vs. RF FREQUENCY MAX2032 toc17 INPUT P1dB vs. RF FREQUENCY MAX2032 toc18 29 TC = -40C 27 INPUT P1dB (dBm) 29 29 VCC = 5.25V 27 INPUT P1dB (dBm) 27 INPUT P1dB (dBm) PLO = 0dBm, +3dBm 25 TC = -25C, +85C TC = +25C 23 25 PLO = -3dBm 23 25 VCC = 4.75V 23 VCC = 5.0V 21 800 850 900 950 1000 RF FREQUENCY (MHz) 21 800 850 900 950 1000 RF FREQUENCY (MHz) 21 800 850 900 950 1000 RF FREQUENCY (MHz) 6 _______________________________________________________________________________________ High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch MAX2032 Typical Operating Characteristics (continued) (Typical Application Circuit, optimized for the 800MHz/900MHz cellular band (see Table 1), C1 = 82pF, C5 = 2pF, L1 and C4 not used, VCC = 5.0V, PLO = 0dBm, PRF = 0dBm, fLO > fRF, fIF = 160MHz, TC = +25C, unless otherwise noted.) Downconverter Curves LO SWITCH ISOLATION vs. LO FREQUENCY MAX2032 toc19 LO SWITCH ISOLATION vs. LO FREQUENCY MAX2032 toc20 LO SWITCH ISOLATION vs. LO FREQUENCY MAX2032 toc21 60 60 60 LO SWITCH ISOLATION (dB) 55 LO SWITCH ISOLATION (dB) LO SWITCH ISOLATION (dB) TC = -40C, -25C 55 55 50 TC = +85C 45 TC = +25C 50 PLO = -3dBm, 0dBm, +3dBm 45 50 45 VCC = 4.75V, 5.0V, 5.25V 40 850 950 1050 1150 1250 LO FREQUENCY (MHz) 40 850 950 1050 1150 1250 LO FREQUENCY (MHz) 40 850 950 1050 1150 1250 LO FREQUENCY (MHz) LO LEAKAGE AT IF PORT vs. LO FREQUENCY MAX2032 toc22 LO LEAKAGE AT IF PORT vs. LO FREQUENCY MAX2032 toc23 LO LEAKAGE AT IF PORT vs. LO FREQUENCY MAX2032 toc24 -20 TC = -40C, -25C -30 -20 -20 VCC = 5.25V -30 LO LEAKAGE AT IF PORT (dBm) LO LEAKAGE AT IF PORT (dBm) -30 -40 -40 PLO = -3dBm, 0dBm, +3dBm -50 LO LEAKAGE AT IF PORT (dBm) TC = +25C TC = +85C -40 VCC = 4.75V VCC = 5.0V -50 -50 -60 960 1010 1060 1110 1160 LO FREQUENCY (MHz) -60 960 1010 1060 1110 1160 LO FREQUENCY (MHz) -60 960 1010 1060 1110 1160 LO FREQUENCY (MHz) LO LEAKAGE AT RF PORT vs. LO FREQUENCY MAX2032 toc25 LO LEAKAGE AT RF PORT vs. LO FREQUENCY MAX2032 toc26 LO LEAKAGE AT RF PORT vs. LO FREQUENCY MAX2032 toc27 -15 -20 -25 -30 TC = +85C -35 -40 -45 850 950 1050 1150 TC = +25C TC = -40C, -25C -15 -20 -25 -30 -35 -40 -45 -15 -20 VCC = 5.25V -25 -30 -35 -40 -45 VCC = 4.75V VCC = 5.0V LO LEAKAGE AT RF PORT (dBm) LO LEAKAGE AT RF PORT (dBm) PLO = -3dBm, 0dBm, +3dBm LO LEAKAGE AT RF PORT (dBm) 1250 850 950 1050 1150 1250 850 950 1050 1150 1250 LO FREQUENCY (MHz) LO FREQUENCY (MHz) LO FREQUENCY (MHz) _______________________________________________________________________________________ 7 High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch MAX2032 Typical Operating Characteristics (continued) (Typical Application Circuit, optimized for the 800MHz/900MHz cellular band (see Table 1), C1 = 82pF, C5 = 2pF, L1 and C4 not used, VCC = 5.0V, PLO = 0dBm, PRF = 0dBm, fLO > fRF, fIF = 160MHz, TC = +25C, unless otherwise noted.) Downconverter Curves RF-TO-IF ISOLATION vs. RF FREQUENCY MAX2032 toc28 RF-TO-IF ISOLATION vs. RF FREQUENCY MAX2032 toc29 RF-TO-IF ISOLATION vs. RF FREQUENCY MAX2032 toc30 60 55 RF-TO-IF ISOLATION (dB) 50 45 40 35 30 800 850 900 950 TC = +85C TC = +25C 60 55 RF-TO-IF ISOLATION (dB) PLO = +3dBm 50 45 40 35 30 PLO = -3dBm PLO = 0dBm 60 55 RF-TO-IF ISOLATION (dB) 50 45 40 35 30 VCC = 4.75V, 5.0V, 5.25V TC = -40C, -25C 1000 800 850 900 950 1000 800 850 900 950 1000 RF FREQUENCY (MHz) RF FREQUENCY (MHz) RF FREQUENCY (MHz) RF PORT RETURN LOSS vs. RF FREQUENCY MAX2032 toc31 IF PORT RETURN LOSS vs. IF FREQUENCY 5 10 IF PORT RETURN LOSS (dB) 15 20 25 30 35 40 45 VCC = 4.75V, 5.0V, 5.25V INCLUDES IF TRANSFORMER MAX2032 toc32 IF PORT RETURN LOSS vs. IF FREQUENCY 5 10 IF PORT RETURN LOSS (dB) 15 20 25 30 35 40 45 50 PLO = -3dBm, 0dBm, +3dBm INCLUDES IF TRANSFORMER MAX2032 toc33 0 5 RF PORT RETURN LOSS (dB) 10 15 20 PLO = -3dBm, 0dBm, +3dBm 25 30 750 800 850 900 950 1000 0 0 50 1050 0 100 200 300 400 500 RF FREQUENCY (MHz) IF FREQUENCY (MHz) 0 100 200 300 400 500 IF FREQUENCY (MHz) LO SELECTED RETURN LOSS vs. LO FREQUENCY MAX2032 toc34 LO UNSELECTED RETURN LOSS vs. LO FREQUENCY MAX2032 toc35 SUPPLY CURRENT vs. TEMPERATURE (TC) VCC = 5.25V SUPPLY CURRENT (mA) 90 MAX2032 toc36 0 5 LO SELECTED RETURN LOSS (dB) 10 15 20 25 30 35 40 800 900 1000 1100 1200 PLO = -3dBm PLO = +3dBm PLO = 0dBm 0 LO UNSELECTED RETURN LOSS (dB) 10 PLO = -3dBm, 0dBm, +3dBm 20 30 40 50 60 100 80 VCC = 5.0V 70 VCC = 4.75V 60 800 900 1000 1100 1200 1300 -40 -15 10 35 60 85 LO FREQUENCY (MHz) TEMPERATURE (C) 1300 LO FREQUENCY (MHz) 8 _______________________________________________________________________________________ High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch Typical Operating Characteristics (continued) (Typical Application Circuit, optimized for the 700MHz band (see Table 1), C1 = 7pF, C5 = 3.3pF, L1 and C4 are not used, VCC = 5V, PLO = 0dBm, PRF = 0dBm, fLO > fRF, fIF = 140MHz, TC = +25C, unless otherwise noted.) MAX2032 Downconverter Curves CONVERSION LOSS vs. RF FREQUENCY MAX2032 toc37 CONVERSION LOSS vs. RF FREQUENCY MAX2032 toc38 CONVERSION LOSS vs. RF FREQUENCY MAX2032 toc39 9 9 9 CONVERSION LOSS (dB) 7 CONVERSION LOSS (dB) CONVERSION LOSS (dB) 8 TC = +85C 8 8 7 PLO = -3dBm, 0dBm, +3dBm 7 VCC = 4.75V, 5.0V, 5.25V 6 TC = -40C TC = +25C 6 6 5 650 700 750 800 850 RF FREQUENCY (MHz) 5 650 700 750 800 850 RF FREQUENCY (MHz) 5 650 700 750 800 850 RF FREQUENCY (MHz) INPUT IP3 vs. RF FREQUENCY MAX2032 toc40 INPUT IP3 vs. RF FREQUENCY MAX2032 toc41 INPUT IP3 vs. RF FREQUENCY PRF = 0dBm/TONE 34 INPUT IP3 (dBm) VCC = 5.25V MAX2032 toc42 36 PRF = 0dBm/TONE 34 INPUT IP3 (dBm) 36 PRF = 0dBm/TONE 34 INPUT IP3 (dBm) 36 32 TC = +25C TC = +25C TC = +85C 32 32 VCC = 5.0V 30 30 30 PLO = -3dBm, 0dBm, +3dBm VCC = 4.75V 28 TC = -40C 28 28 26 650 700 750 800 850 RF FREQUENCY (MHz) 26 650 700 750 800 850 RF FREQUENCY (MHz) 26 650 700 750 800 850 RF FREQUENCY (MHz) 2LO - 2RF RESPONSE vs. RF FREQUENCY MAX2032 toc43 2LO - 2RF RESPONSE vs. RF FREQUENCY MAX2032 toc44 2LO - 2RF RESPONSE vs. RF FREQUENCY PRF = 0dBm 2LO - 2RF RESPONSE (dBc) 70 MAX2032 toc45 80 PRF = 0dBm 2LO - 2RF RESPONSE (dBc) 70 TC = +85C 60 TC = +25C 50 TC = -40C 40 650 700 750 800 80 PRF = 0dBm 2LO - 2RF RESPONSE (dBc) 70 PLO = +3dBm 60 PLO = 0dBm 50 PLO = -3dBm 80 60 50 VCC = 4.75V, 5.0V, 5.25V 40 40 850 650 700 750 800 850 RF FREQUENCY (MHz) RF FREQUENCY (MHz) 650 700 750 800 850 RF FREQUENCY (MHz) _______________________________________________________________________________________ 9 High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch MAX2032 Typical Operating Characteristics (continued) (Typical Application Circuit, optimized for the 700MHz band (see Table 1), C1 = 7pF, C5 = 3.3pF, L1 and C4 are not used, VCC = 5V, PLO = 0dBm, PRF = 0dBm, fLO > fRF, fIF = 140MHz, TC = +25C, unless otherwise noted.) Downconverter Curves 3LO - 3RF RESPONSE vs. RF FREQUENCY MAX2032 toc46 3LO - 3RF RESPONSE vs. RF FREQUENCY PRF = 0dBm 3LO - 3RF RESPONSE (dBc) MAX2032 toc47 3LO - 3RF RESPONSE vs. RF FREQUENCY VCC = 5.25V 3LO - 3RF RESPONSE (dBc) PRF = 0dBm MAX2032 toc48 85 TC = +25C 3LO - 3RF RESPONSE (dBc) PRF = 0dBm 85 85 75 75 75 TC = +85C 65 TC = -40C 65 PLO = -3dBm, 0dBm, +3dBm 65 VCC = 5.0V VCC = 4.75V 55 650 700 750 800 850 RF FREQUENCY (MHz) 55 650 700 750 800 850 RF FREQUENCY (MHz) 55 650 700 750 800 850 RF FREQUENCY (MHz) INPUT P1dB vs. RF FREQUENCY MAX2032 toc49 INPUT P1dB vs. RF FREQUENCY MAX2032 toc50 INPUT P1dB vs. RF FREQUENCY VCC = 5.25V 24 INPUT P1dB (dBm) PLO = +3dBm 24 INPUT P1dB (dBm) 24 INPUT P1dB (dBm) TC = +25C 23 TC = +85C VCC = 5.0V 23 PLO = 0dBm 23 22 22 22 VCC = 4.75V 21 TC = -40C 20 650 700 750 800 850 RF FREQUENCY (MHz) 20 650 700 750 800 850 RF FREQUENCY (MHz) 21 21 PLO = -3dBm 20 650 700 750 800 850 RF FREQUENCY (MHz) LO LEAKAGE AT IF PORT vs. LO FREQUENCY MAX2032 toc52 LO LEAKAGE AT IF PORT vs. LO FREQUENCY MAX2032 toc53 LO LEAKAGE AT IF PORT vs. LO FREQUENCY MAX2032 toc54 -15 LO LEAKAGE AT IF PORT (dBm) -15 LO LEAKAGE AT IF PORT (dBm) -15 LO LEAKAGE AT IF PORT (dBm) TC = -40C -25 -25 PLO = +3dBm -25 VCC = 5.25V -35 TC = +25C TC = +85C -35 PLO = 0dBm -45 PLO = -3dBm -35 VCC = 5.0V VCC = 4.75V -45 -45 790 840 890 940 990 LO FREQUENCY (MHz) 790 840 890 940 990 790 840 890 940 990 LO FREQUENCY (MHz) LO FREQUENCY (MHz) 10 ______________________________________________________________________________________ MAX2032 toc51 25 25 25 High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch Typical Operating Characteristics (continued) (Typical Application Circuit, optimized for the 700MHz band (see Table 1), C1 = 7pF, C5 = 3.3pF, L1 and C4 are not used, VCC = 5V, PLO = 0dBm, PRF = 0dBm, fLO > fRF, fIF = 140MHz, TC = +25C, unless otherwise noted.) MAX2032 Downconverter Curves LO LEAKAGE AT RF PORT vs. LO FREQUENCY MAX2032 toc55 LO LEAKAGE AT RF PORT vs. LO FREQUENCY MAX2032 toc56 LO LEAKAGE AT RF PORT vs. LO FREQUENCY MAX2032 toc57 -10 LO LEAKAGE AT RF PORT (dBm) TC = -40C -10 LO LEAKAGE AT RF PORT (dBm) -10 LO LEAKAGE AT RF PORT (dBm) VCC = 5.25V -15 -15 -15 PLO = +3dBm -20 TC = +85C TC = +25C -20 -20 PLO = -3dBm -25 VCC = 5.0V -25 VCC = 4.75V -25 PLO = 0dBm -30 790 840 890 940 990 LO FREQUENCY (MHz) -30 790 840 890 940 990 LO FREQUENCY (MHz) -30 790 840 890 940 990 LO FREQUENCY (MHz) 2LO LEAKAGE AT RF PORT vs. LO FREQUENCY MAX2032 toc58 2LO LEAKAGE AT RF PORT vs. LO FREQUENCY MAX2032 toc59 2LO LEAKAGE AT RF PORT vs. LO FREQUENCY VCC = 5.25V -25 VCC = 4.75V VCC = 5.0V MAX2032 toc60 -20 2LO LEAKAGE AT RF PORT (dBm) -20 PLO = +3dBm 2LO LEAKAGE AT RF PORT (dBm) -25 -20 2LO LEAKAGE AT RF PORT (dBm) TC = -40C -25 -30 -30 PLO = 0dBm -30 TC = +25C -35 TC = +85C -35 PLO = -3dBm -40 -35 -40 790 840 890 940 990 LO FREQENCY (MHz) -40 790 840 890 940 990 790 840 890 940 990 LO FREQUENCY (MHz) LO FREQUENCY (MHz) RF-TO-IF ISOLATION vs. RF FREQUENCY MAX2032 toc61 RF-TO-IF ISOLATION vs. RF FREQUENCY MAX2032 toc62 RF-TO-IF ISOLATION vs. RF FREQUENCY MAX2032 toc63 60 TC = +85C RF-TO-IF ISOLATION (dB) 50 60 60 RF-TO-IF ISOLATION (dB) RF-TO-IF ISOLATION (dB) 50 50 40 TC = -40C TC = +25C 40 PLO = -3dBm, 0dBm, +3dBm VCC = 4.75V, 5.0V, 5.25V 40 30 650 700 750 800 850 RF FREQUENCY (MHz) 30 650 700 750 800 850 RF FREQUENCY (MHz) 30 650 700 750 800 850 RF FREQUENCY (MHz) ______________________________________________________________________________________ 11 High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch MAX2032 Typical Operating Characteristics (continued) (Typical Application Circuit, optimized for the 700MHz band (see Table 1), C1 = 7pF, C5 = 3.3pF, L1 and C4 are not used, VCC = 5V, PLO = 0dBm, PRF = 0dBm, fLO > fRF, fIF = 140MHz, TC = +25C, unless otherwise noted.) Downconverter Curves RF PORT RETURN LOSS vs. RF FREQUENCY MAX2032 toc64 IF PORT RETURN LOSS vs. IF FREQUENCY fLO = 890MHz IF PORT RETURN LOSS (dB) 5 MAX2032 toc65 LO SELECTED RETURN LOSS vs. LO FREQUENCY MAX2032 toc66 0 0 0 LO SELECTED RETURN LOSS (dB) RF PORT RETURN LOSS (dB) 5 10 PLO = 0dBm PLO = +3dBm 10 10 20 15 15 VCC = 4.75V, 5.0V, 5.25V 20 20 30 PLO = -3dBm PLO = -3dBm, 0dBm, +3dBm 25 500 600 700 800 900 1000 RF FREQUENCY (MHz) 25 50 100 150 200 250 300 350 IF FREQUENCY (MHz) 40 600 750 900 1050 1200 LO FREQUENCY (MHz) LO UNSELECTED RETURN LOSS vs. LO FREQUENCY MAX2032 toc67 SUPPLY CURRENT vs. TEMPERATURE (TC) VCC = 5.25V SUPPLY CURRENT (mA) 90 MAX2032 toc68 0 LO UNSELECTED RETURN LOSS (dB) 100 10 20 PLO = -3dBm, 0dBm, +3dBm 80 VCC = 5.0V 30 70 VCC = 4.75V 40 600 750 900 1050 1200 LO FREQENCY (MHz) 60 -40 -15 10 35 60 85 TEMPERATURE (NC) 12 ______________________________________________________________________________________ High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch MAX2032 Typical Operating Characteristics (continued) (Typical Application Circuit, L1 = 4.7nH, C4 = 6pF, C5 not used, VCC = 5.0V, PLO = 0dBm, PIF = 0dBm, fRF = fLO + fIF, fIF = 160MHz, TC = +25C, unless otherwise noted.) Upconverter Curves CONVERSION LOSS vs. RF FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) TC = +25C 8 CONVERSION LOSS (dB) TC = +85C MAX2032 toc69 CONVERSION LOSS vs. RF FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc70 CONVERSION LOSS vs. RF FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc71 9 9 8 CONVERSION LOSS (dB) 7 6 5 4 3 PLO = -3dBm, 0dBm, +3dBm 9 8 CONVERSION LOSS (dB) 7 6 5 4 3 VCC = 4.75V, 5.0V, 5.25V 7 TC = -25C TC = -40C 5 6 4 750 800 850 900 950 1000 1050 RF FREQUENCY (MHz) 750 800 850 900 950 1000 1050 750 800 850 900 950 1000 1050 RF FREQUENCY (MHz) RF FREQUENCY (MHz) INPUT IP3 vs. RF FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc72 INPUT IP3 vs. RF FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc73 INPUT IP3 vs. RF FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) PIF = 0dBm/TONE VCC = 5.25V MAX2032 toc74 35 33 31 INPUT IP3 (dBm) PIF = 0dBm/TONE TC = -25C 35 33 31 INPUT IP3 (dBm) TC = -40C PIF = 0dBm/TONE 35 33 31 INPUT IP3 (dBm) 29 TC = +85C 27 25 23 21 750 800 850 900 950 1000 1050 RF FREQUENCY (MHz) TC = +25C 29 27 25 23 21 750 PLO = -3dBm, 0dBm, +3dBm 29 VCC = 4.75V 27 25 23 21 VCC = 5.0V 800 850 900 950 1000 1050 750 800 850 900 950 1000 1050 RF FREQUENCY (MHz) RF FREQUENCY (MHz) LO + 2IF REJECTION vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc75 LO + 2IF REJECTION vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) PIF = 0dBm MAX2032 toc76 LO + 2IF REJECTION vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) PIF = 0dBm VCC = 5.25V VCC = 5.0V MAX2032 toc77 80 75 LO + 2IF REJECTION (dBc) 70 65 60 55 50 PIF = 0dBm 80 75 LO + 2IF REJECTION (dBc) 70 65 60 55 50 80 75 LO + 2IF REJECTION (dBc) 70 65 60 55 50 TC = -40C, -25C TC = +25C PLO = +3dBm TC = +85C PLO = -3dBm PLO = 0dBm VCC = 4.75V 910 960 1010 1060 1110 1160 1210 910 960 1010 1060 1110 1160 1210 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) LO FREQUENCY (MHz) LO FREQUENCY (MHz) ______________________________________________________________________________________ 13 High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch MAX2032 Typical Operating Characteristics (continued) (Typical Application Circuit, L1 = 4.7nH, C4 = 6pF, C5 not used, VCC = 5.0V, PLO = 0dBm, PIF = 0dBm, fRF = fLO + fIF, fIF = 160MHz, TC = +25C, unless otherwise noted.) Upconverter Curves LO - 2IF REJECTION vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc78 LO - 2IF REJECTION vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc79 LO - 2IF REJECTION vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) PIF = 0dBm VCC = 5.25V MAX2032 toc80 80 75 LO - 2IF REJECTION (dBc) 70 65 PIF = 0dBm 80 75 LO - 2IF REJECTION (dBc) 70 65 60 TC = -40C, -25C PIF = 0dBm 80 75 LO - 2IF REJECTION (dBc) 70 65 60 TC = +85C PLO = +3dBm VCC = 5.0V TC = +25C 60 55 50 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) PLO = -3dBm 55 50 910 960 1010 PLO = 0dBm VCC = 4.75V 55 50 1060 1110 1160 1210 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) LO FREQUENCY (MHz) LO + 3IF REJECTION vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc81 LO + 3IF REJECTION vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) PIF = 0dBm MAX2032 toc82 LO + 3IF REJECTION vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) PIF = 0dBm VCC = 5.25V MAX2032 toc83 90 PIF = 0dBm 90 90 LO + 3IF REJECTION (dBc) LO + 3IF REJECTION (dBc) TC = -40C, -25C, +25C, +85C 70 PLO = -3dBm, 0dBm, +3dBm 70 LO + 3IF REJECTION (dBc) 80 80 80 VCC = 4.75V, 5.0V 70 60 60 60 50 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) 50 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) 50 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) LO - 3IF REJECTION vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc84 LO - 3IF REJECTION vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc85 LO - 3IF REJECTION vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) PIF = 0dBm VCC = 5.25V LO - 3IF REJECTION (dBc) 80 VCC = 4.75V 70 VCC = 5.0V 60 MAX2032 toc86 90 PIF = 0dBm TC = -40C, -25C, +25C 90 PIF = 0dBm 90 LO - 3IF REJECTION (dBc) LO - 3IF REJECTION (dBc) 80 TC = +85C 70 80 PLO = -3dBm, 0dBm, +3dBm 70 60 60 50 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) 50 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) 50 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) 14 ______________________________________________________________________________________ High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch MAX2032 Typical Operating Characteristics (continued) (Typical Application Circuit, L1 = 4.7nH, C4 = 6pF, C5 not used, VCC = 5.0V, PLO = 0dBm, PIF = 0dBm, fRF = fLO + fIF, fIF = 160MHz, TC = +25C, unless otherwise noted.) Upconverter Curves LO LEAKAGE AT RF PORT vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc87 LO LEAKAGE AT RF PORT vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc88 LO LEAKAGE AT RF PORT vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc89 -15 -15 -15 LO LEAKAGE AT RF PORT (dBm) LO LEAKAGE AT RF PORT (dBm) LO LEAKAGE AT RF PORT (dBm) -20 TC = -40C, -25C -20 -20 VCC = 5.25V -25 -25 -25 -30 TC = +85C TC = +25C -30 PLO = -3dBm, 0dBm, +3dBm -30 VCC = 4.75V VCC = 5.0V -35 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) -35 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) -35 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) IF LEAKAGE AT RF PORT vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc90 IF LEAKAGE AT RF PORT vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc91 IF LEAKAGE AT RF PORT vs. LO FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) MAX2032 toc92 -50 TC = +25C TC = -40C, -25C -70 TC = +85C -50 PLO = -3dBm IF LEAKAGE AT RF PORT (dBm) -60 PLO = 0dBm -70 PLO = +3dBm -80 -50 VCC = 5.0V VCC = 5.25V IF LEAKAGE AT RF PORT (dBm) IF LEAKAGE AT RF PORT (dBm) -60 -60 -70 VCC = 4.75V -80 -80 -90 -90 -90 -100 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) -100 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) -100 910 960 1010 1060 1110 1160 1210 LO FREQUENCY (MHz) RF PORT RETURN LOSS vs. RF FREQUENCY (L-C BPF TUNED FOR 810MHz RF FREQUENCY) L1 AND C4 BPF REMOVED L1 AND C4 BPF INSTALLED MAX2032 toc93 0 5 RF PORT RETURN LOSS (dB) 10 15 20 25 30 35 750 800 850 THE OPTIONAL L-C BPF ENHANCES PERFORMANCE IN THE UPCONVERTER MODE, BUT LIMITS RF BANDWIDTH 900 950 1000 1050 RF FREQUENCY (MHz) ______________________________________________________________________________________ 15 High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch MAX2032 Pin Description PIN 1, 6, 8, 14 2 3 4, 5, 10, 12, 13, 16, 17, 20 7 9 11 15 18, 19 -- NAME VCC RF TAP GND FUNCTION Power-Supply Connection. Bypass each VCC pin to GND with capacitors as shown in the Typical Application Circuit. Single-Ended 50 RF Input/Output. This port is internally matched and DC shorted to GND through a balun. Center Tap of the Internal RF Balun. Connect to ground. Ground LOBIAS Bias Resistor for Internal LO Buffer. Connect a 523 1% resistor from LOBIAS to the power supply. LOSEL LO1 LO2 IF-, IF+ EP Local Oscillator Select. Logic-control input for selecting LO1 or LO2. Local Oscillator Input 1. Drive LOSEL low to select LO1. Local Oscillator Input 2. Drive LOSEL high to select LO2. Differential IF Input/Outputs Exposed Pad. Internally connected to GND. Solder this exposed pad to a PCB pad that uses multiple ground vias to provide heat transfer out of the device into the PCB ground planes. These multiple ground vias are also required to achieve the noted RF performance. Detailed Description The MAX2032 can operate either as a downconverter or an upconverter mixer that provides approximately 7dB of conversion loss with a typical 7dB noise figure. IIP3 is +33dBm and +31dBm for downconversion and upconversion modes, respectively. The integrated baluns and matching circuitry allow for 50 single-ended interfaces to the RF port and the two LO ports. The RF port can be used as an input for downconversion or an output for upconversion. A single-pole, double-throw (SPDT) switch provides 50ns switching time between the two LO inputs with 49dB of LO-to-LO isolation. Furthermore, the integrated LO buffer provides a high drive level to the mixer core, reducing the LO drive required at the MAX2032's inputs to a -3dBm to +3dBm range. The IF port incorporates a differential output for downconversion, which is ideal for providing enhanced IIP2 performance. For upconversion, the IF port is a differential input. Specifications are guaranteed over broad frequency ranges to allow for use in cellular band WCDMA, cdmaOneTM, cdma2000, and GSM 850/GSM 900 2.5G EDGE base stations. The MAX2032 is specified to operate over a 650MHz to 1000MHz RF frequency range, a 650MHz to 1250MHz LO frequency range, and a DC to 250MHz IF frequency range. Operation beyond these ranges is possible; see the Typical Operating Characteristics for additional details. The MAX2032 is optimized for high-side LO injection architectures. However, the device can operate in low-side LO cdmaOne is a trademark of CDMA Development Group. 16 injection applications with an extended LO range, but performance degrades as fLO decreases. See the Typical Operating Characteristics for measurements taken with fLO below 960MHz. For a pin-compatible device that has been optimized for LO frequencies below 960MHz, refer to the MAX2029. RF Port and Balun For using the MAX2032 as a downconverter, the RF input is internally matched to 50, requiring no external matching components. A DC-blocking capacitor is required because the input is internally DC shorted to ground through the on-chip balun. For upconverter operation, the RF port is a single-ended output similarly matched to 50. LO Inputs, Buffer, and Balun The MAX2032 is optimized for high-side LO injection architectures with a 650MHz to 1250MHz LO frequency range. For a device with a 570MHz to 900MHz LO frequency range, refer to the MAX2029. As an added feature, the MAX2032 includes an internal LO SPDT switch that can be used for frequency-hopping applications. The switch selects one of the two single-ended LO ports, allowing the external oscillator to settle on a particular frequency before it is switched in. LO switching time is typically less than 50ns, which is more than adequate for nearly all GSM applications. If frequency hopping is not employed, set the switch to either of the LO inputs. The switch is controlled by a digital input (LOSEL): logic-high selects LO2, logic-low selects LO1. ______________________________________________________________________________________ High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch To avoid damage to the part, voltage MUST be applied to VCC before digital logic is applied to LOSEL (see the Absolute Maximum Ratings). LO1 and LO2 inputs are internally matched to 50, requiring an 82pF DC-blocking capacitor at each input. A two-stage internal LO buffer allows a wide inputpower range for the LO drive. All guaranteed specifications are for a -3dBm to +3dBm LO signal power. The on-chip low-loss balun, along with an LO buffer, drives the double-balanced mixer. All interfacing and matching components from the LO inputs to the IF outputs are integrated on-chip. Applications Information Input and Output Matching The RF and LO inputs are internally matched to 50. No matching components are required. As a downconverter, the return loss at the RF port is typically better than 15dB over the entire input range (650MHz to 1000MHz), and return loss at the LO ports are typically 15dB (960MHz to 1180MHz). RF and LO inputs require only DC-blocking capacitors for interfacing (see Table 1). An optional L-C bandpass filter (BPF) can be installed at the RF port to improve upconverter performance. See the Typical Application Circuit and Typical Operating Characteristics for upconverter operation with an L-C BPF tuned for 810MHz RF frequency. Performance can be optimized at other frequencies by choosing different values for L1 and C4. Removing L1 and C4 altogether results in a broader match, but performance degrades. Contact factory for details. The IF output impedance is 50 (differential). For evaluation, an external low-loss 1:1 (impedance ratio) balun transforms this impedance to a 50 single-ended output (see the Typical Application Circuit). MAX2032 High-Linearity Mixer The core of the MAX2032 is a double-balanced, highperformance passive mixer. Exceptional linearity is provided by the large LO swing from the on-chip LO buffer. Differential IF The MAX2032 mixer has a DC to 250MHz IF frequency range. Note that these differential ports are ideal for providing enhanced IIP2 performance. Single-ended IF applications require a 1:1 balun to transform the 50 differential IF impedance to 50 single-ended. Including the balun, the IF return loss is better than 15dB. The differential IF is used as an input port for upconverter operation. The user can use a differential IF amplifier following the mixer, but a DC block is required on both IF pins. Table 1. Typical Application Circuit Component List DESIGNATION QTY DESCRIPTION 82pF microwave capacitor (0603). Use for 800MHz/ 900MHz cellular band applications. C1 1 7pF microwave capacitor (0603). Use for 700MHz band applications. C2, C7, C8, C10, C11, C12 C3, C6, C9 C4* 6 3 1 82pF microwave capacitors (0603) 0.01F microwave capacitors (0603) 6pF microwave capacitor (0603) 2pF microwave capacitor (0603). Use for 800MHz/ 900MHz cellular band applications. C5** 1 3.3pF microwave capacitor (0603). Use for 700MHz band applications. L1* R1 T1 U1 1 1 1 1 4.7nH inductor (0603) 523 1% resistor (0603) MABAES0029 1:1 transformer (50:50) MAX2032 IC (20 TQFN) Digi-Key Corp. M/A-Com, Inc. Maxim Integrated Products, Inc. -- Murata Electronics North America, Inc. Murata Electronics North America, Inc. Murata Electronics North America, Inc. -- Murata Electronics North America, Inc. SUPPLIER *C4 and L1 installed only when mixer is used as an upconverter. **C5 installed only when mixer is used as a downconverter. ______________________________________________________________________________________ 17 High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch MAX2032 Bias Resistor Bias current for the LO buffer is optimized by fine tuning resistor R1. If reduced current is required at the expense of performance, contact the factory for details. If the 1% bias resistor values are not readily available, substitute standard 5% values. Power-Supply Bypassing Proper voltage-supply bypassing is essential for highfrequency circuit stability. Bypass each VCC pin with the capacitors shown in the Typical Application Circuit. See Table 1. Exposed Pad RF/Thermal Considerations The exposed pad (EP) of the MAX2032's 20-pin thin QFN-EP package provides a low-thermal-resistance path to the die. It is important that the PCB on which the MAX2032 is mounted be designed to conduct heat from the EP. In addition, provide the EP with a lowinductance path to electrical ground. The EP MUST be soldered to a ground plane on the PCB, either directly or through an array of plated via holes. Layout Considerations A properly designed PCB is an essential part of any RF/microwave circuit. Keep RF signal lines as short as possible to reduce losses, radiation, and inductance. For the best performance, route the ground-pin traces directly to the exposed pad under the package. The PCB exposed pad MUST be connected to the ground plane of the PCB. It is suggested that multiple vias be used to connect this pad to the lower-level ground planes. This method provides a good RF/thermal conduction path for the device. Solder the exposed pad on the bottom of the device package to the PCB. The MAX2032 evaluation kit can be used as a reference for board layout. Gerber files are available upon request at www.maxim-ic.com. 18 ______________________________________________________________________________________ High-Linearity, 650MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch Typical Application Circuit T1 1 3 4 5 MAX2032 IF C5 GND GND 17 GND 16 C12 VCC C4 L1 RF TAP GND GND 1 2 3 4 EP 5 11 15 LO2 VCC GND GND LO1 C10 6 VCC 7 LOBIAS 8 VCC 9 LOSEL 10 GND LO1 C11 LO2 VCC 14 13 12 LOSEL C6 C7 VCC 20 IF+ 19 C8 C3 C1 RF C2 + 18 R1 VCC IF- MAX2032 VCC NOTE: L1 AND C4 USED ONLY FOR UPCONVERTER OPERATION. C5 USED ONLY FOR DOWNCONVERTER OPERATION. C9 Chip Information PROCESS: SiGe BiCMOS Package Information For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE 20 Thin QFN-EP PACKAGE CODE T2055+3 DOCUMENT NO. 21-0140 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 19 (c) 2009 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc. |
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