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| 19-3908; Rev 0; 12/05 KIT ATION EVALU ILABLE AVA 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer General Description Features o +31dBm Typical 3rd-Order Input Intercept Point o +23dBm Typical Input 1dB Compression Point o 1700MHz to 3000MHz RF Frequency Range o 1900MHz to 3000MHz LO Frequency Range o DC to 350MHz IF Frequency Range o 7.5dB Typical Conversion Loss o 7.8dB Typical Noise Figure o -160dBc/Hz LO Noise o -52dBm LO Leakage at RF Port o 67dBc LO 2IF Spurious Suppression o -3dBm to +6dBm LO Drive o +5V Single-Supply Operation o Built-In SPDT LO Switch with 43dB LO1 to LO2 Isolation and 50ns Switching Time o Internal RF and LO Baluns for Single-Ended Inputs o External Current-Setting Resistor Provides Option for Operating Mixer in Reduced Power/Reduced Performance Mode o Lead-Free Package Available MAX2043 The MAX2043 high-linearity passive upconverter or downconverter mixer is designed to provide approximately +31dBm of IIP3, +67dBc of LO 2IF spurious rejection, 7.8dB of noise figure, 7.5dB of conversion loss, and -52dBm of LO leakage for UMTS/WCDMA, DCS, PCS, and WiMAX base-station applications. With a 1700MHz to 3000MHz RF frequency range and a 1900MHz to 3000MHz LO frequency range, this mixer is ideal for high-side LO injection architectures. In addition to offering excellent linearity and noise performance, the MAX2043 also yields a high level of component integration. The MAX2043 integrates baluns in the RF and LO ports, a dual-input LO-selectable switch, an LO buffer, and a double-balanced mixer. The onchip baluns allow for a single-ended RF input for downconversion (or RF output for upconversion), and single-ended LO inputs. The MAX2043 requires a typical 0dBm LO drive, and supply current is rated at a typical 108mA level. The IF port is DC-coupled, making it ideal for direct conversion or modulation. As an upconverter, the device has low output noise floor of less than -160dBc/Hz (-160dBm/Hz when transmitting 0dBm linear RF power). The MAX2043 is available in a 36-pin thin QFN package (6mm x 6mm) with an exposed paddle. Electrical performance is guaranteed over the extended -40C to +85C temperature range. Applications UMTS/WCDMA and 3G Base Stations DCS 1800 and EDGE Base Stations PCS 1900 and EDGE Base Stations cdmaOneTM and cdma2000(R) Base Stations WiMAX Base Stations and Customer Premise Equipment Point-to-Point Microwave Systems Wireless Local Loop Private Mobile Radio Digital and Spread-Spectrum Communication Systems Microwave Links Ordering Information PART MAX2043ETX MAX2043ETX-T MAX2043ETX+ MAX2043ETX+T TEMP RANGE -40C to +85C -40C to +85C -40C to +85C -40C to +85C PINPACKAGE 36 TQFN-EP* (6mm x 6mm) 36 TQFN-EP* (6mm x 6mm) 36 TQFN-EP* (6mm x 6mm) 36 TQFN-EP* (6mm x 6mm) PKG CODE T3666-2 T3666-2 T3666-2 T3666-2 cdmaOne is a trademark of CDMA Development Group. cdma2000 is a registered trademark of Telecommunications Industry Association. *EP = Exposed paddle. +Denotes lead-free package. -T = Tape-and-reel package. Pin Configuration and Typical Application Circuit appear at end of data sheet. 1 ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer MAX2043 ABSOLUTE MAXIMUM RATINGS VCC to GND ...........................................................-0.3V to +5.5V RF (RF is DC shorted to GND through balun).....................50mA LO1, LO2 to GND ...............................................................0.3V RFTAP, IF+, IF- to GND ..............................-0.3V to (VCC + 0.3V) LOSEL to GND ...........................................-0.3V to (VCC + 0.3V) RF, IF, and LO Input Power** .........................................+20dBm LO_ADJ Current....................................................................5mA Continuous Power Dissipation (TA = +70C) 36-Pin TQFN (derated 30.3mW/C above +70C) ......2200mW Operating Temperature Range ...........................-40C to +85C Junction Temperature ......................................................+150C JC ................................................................................+7.4C/W JA .................................................................................+38C/W Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C **Maximum reliable continuous input power applied to the RF, IF, and LO ports of this device is +15dBm from a 50 source. 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 (MAX2043 Typical Application Circuit, VCC = +4.75V to +5.25V, no RF signals applied, IF+ and IF- DC grounded through a transformer, TC = -40C to +85C. A 360 resistor is connected from LO_ADJ to GND. Typical values are at VCC = +5V, TC = +25C, unless otherwise noted.) PARAMETER Supply Voltage Supply Current LOSEL Logic 0 Input Voltage LOSEL Logic 1 Input Voltage LOSEL Logic Input Current SYMBOL VCC ICC VIL VIH IIH and IIL 2 -10 +10 Total supply current CONDITIONS MIN 4.75 TYP 5 108 MAX 5.25 140 0.8 UNITS V mA V V A AC ELECTRICAL CHARACTERISTICS (Downconverter Operation) (MAX2043 Typical Application Circuit, VCC = +4.75V to +5.25V, RF and LO ports are driven from 50 sources, PLO = -3dBm to +3dBm, PRF = 0dBm, fRF = 1700MHz to 3000MHz, fLO = 1900MHz to 3000MHz, fIF = 200MHz, fRF < fLO, TC = -40C to +85C, unless otherwise noted. Typical values are at VCC = +5V, PRF = 0dBm, PLO = 0dBm, fRF = 1900MHz, fLO = 2100MHz, fIF = 200MHz, TC = +25C, unless otherwise noted.) (Note 1) PARAMETER RF Frequency LO Frequency IF Frequency (Notes 1, 2) SYMBOL fRF fLO fIF DCS 1800: PRF = -10dBm, PLO = 0dBm, fIF = 200MHz, fRF = 1710MHz to 1785MHz Small-Signal Conversion Loss LC PCS 1900: PRF = -10dBm, PLO = 0dBm, fIF = 200MHz, fRF = 1850MHz to 1910MHz UMTS 2100: PRF = -10dBm, PLO = 0dBm, fIF = 200MHz, fRF = 1920MHz to 1980MHz DCS 1800: fRF = 1710MHz to 1785MHz Conversion Loss Variation from Nominal PCS 1900: fRF = 1850MHz to 1910MHz UMTS 2100: fRF = 1920MHz to 1980MHz CONDITIONS MIN 1700 1900 0 7.5 7.5 7.5 0.5 0.5 0.5 dB dB TYP MAX 3000 3000 350 UNITS MHz MHz MHz 2 _______________________________________________________________________________________ 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer AC ELECTRICAL CHARACTERISTICS (Downconverter Operation) (continued) (MAX2043 Typical Application Circuit, VCC = +4.75V to +5.25V, RF and LO ports are driven from 50 sources, PLO = -3dBm to +3dBm, PRF = 0dBm, fRF = 1700MHz to 3000MHz, fLO = 1900MHz to 3000MHz, fIF = 200MHz, fRF < fLO, TC = -40C to +85C, unless otherwise noted. Typical values are at VCC = +5V, PRF = 0dBm, PLO = 0dBm, fRF = 1900MHz, fLO = 2100MHz, fIF = 200MHz, TC = +25C, unless otherwise noted.) (Note 1) PARAMETER Conversion Loss Variation Over Temperature SYMBOL CONDITIONS TC = -40C to +85C TC = +25C, DCS 1800: fRF = 1710MHz to 1785MHz Noise Figure, Single Sideband NF TC = +25C, PCS 1900: fRF = 1850MHz to 1910MHz TC = +25C, UMTS 2100: fRF = 1920MHz to 1980MHz Noise Figure Under Blocking Condition (Note 3) Input Compression Point (Note 4) 3rd-Order Input Intercept Point 3rd-Order Input Intercept Point Variation IP1dB IIP3 PBLOCKER = +5dBm at 2100MHz, fRF = 2000MHz, fLO = 2190MHz, PLO = 0dBm High-side injection High-side injection, fRF1 = 1900MHz, fRF2 = 1901MHz, 0dBm per tone at RF port TC = -40C to +85C fRF = 1900MHz, fLO = 2100MHz, 2LO - 2RF Spur fSPUR = 2000MHz, PRF = 0dBm, PLO = 0dBm fRF = 1900MHz, fLO = 2100MHz, 3LO - 3RF Spur fSPUR = 2033.333MHz, PRF = 0dBm, PLO = 0dBm LO Drive (Note 5) LO1-to-LO2 Port Isolation LO Leakage at RF Port LO Switching Time LO Leakage at IF Port RF-to-IF Isolation RF Input Return Loss LO Input Return Loss IF Return Loss PLO PLO1 = PLO2 = +3dBm, fIF = 200MHz (Note 6) PLO = +3dBm, fLO = 2260MHz 50% of LOSEL to IF settled within 2 degrees PLO = +3dBm PLO = +3dBm LO on and IF terminated RF and IF terminated RF and LO terminated in 50, fIF = 200MHz (Note 7) -3 0 43 -52 50 -35 38 17 14 20 -38 +6 dBm dB dBm ns dBm dB dB dB dB 67 dBc 63 dBc MIN TYP 0.0075 7.8 7.8 7.8 dB MAX UNITS dB/C MAX2043 19 +23 31 0.75 dB dBm dBm dB _______________________________________________________________________________________ 3 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer MAX2043 AC ELECTRICAL CHARACTERISTICS (Upconverter Operation) (MAX2043 Typical Application Circuit, VCC = +4.75V to +5.25V, PLO = -3dBm to +3dBm, PIF = 0dBm, fRF = 1700MHz to 3000MHz, fLO = 1900MHz to 3000MHz, fIF = 200MHz, fRF = fLO - fIF, TC = -40C to +85C, unless otherwise noted. Typical values are at VCC = +5V, PIF = 0dBm, PLO = 0dBm, fRF = 2170MHz, fLO = 2260MHz, fIF = 90MHz, TC = +25C, unless otherwise noted.) (Note 3) PARAMETER Input Compression Point SYMBOL IP1dB Two tones: fIF1 = 90MHz, 3rd-Order Input Intercept Point IIP3 fIF2 = 91MHz, PIF = +5dBm/tone, fLO = 2230MHz, PLO = 0dBm LO 2IF Spur LO 3IF Spur Output Noise Floor LO - 2IF LO + 2IF LO - 3IF LO + 3IF POUT = 0dBm 60 60 67 69 63 64 -160 dBc dBc dBm/Hz 28 dBm CONDITIONS MIN TYP 23 MAX UNITS dBm Note 1: All limits reflect losses of external components. Output measurement taken at IF port of Typical Application Circuit. Note 2: The lower IF frequency limit of 0MHz is limited by the external IF transformer. Note 3: Measured with external LO source noise filtered so its noise floor is not a contributor. Measured with: fRF = 2000MHz, fBLOCKER = 2100MHz, fLO = 2190MHz, using a 190MHz SAW filter on the IF port. This specification reflects the effects of all SNR degradations in the mixer, including the LO noise as defined in Maxim Application Note 2021. Note 4: Maximum reliable continuous input power applied to the RF or IF port of this device is +15dBm from a 50 source. Note 5: Typical Operating Characteristics show LO drive extended to +6dBm Note 6: Measured IF port at IF frequency. fLO1 and fLO2 are offset by 1MHz. Note 7: IF return loss can be optimized by external matching components. Typical Operating Characteristics (MAX2043 Typical Application Circuit, C2 not installed, RFTAP = GND, VCC = +5.0V, PLO = 0dBm, LOSEL = "0" (LO2 selected), PRF = 0dBm, fLO > fRF, fIF = 200MHz, unless otherwise noted.) Downconverter Curves CONVERSION LOSS vs. RF FREQUENCY MAX2043 toc01 CONVERSION LOSS vs. RF FREQUENCY MAX2043 toc02 CONVERSION LOSS vs. RF FREQUENCY MAX2043 toc03 9 TC = +85C 8 CONVERSION LOSS (dB) 9 9 8 CONVERSION LOSS (dB) 7 6 5 4 3 VCC = 4.75V, 5.0V, 5.25V 8 CONVERSION LOSS (dB) 7 7 6 TC = -40C 6 PLO = -3dBm, 0dBm, +3dBm TC = +25C 5 5 4 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) 4 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) 4 _______________________________________________________________________________________ 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer MAX2043 Typical Operating Characteristics (continued) (MAX2043 Typical Application Circuit, C2 not installed, RFTAP = GND, VCC = +5.0V, PLO = 0dBm, LOSEL = "0" (LO2 selected), PRF = 0dBm, fLO > fRF, fIF = 200MHz, unless otherwise noted.) Downconverter Curves INPUT IP3 vs. RF FREQUENCY MAX2043 toc04 INPUT IP3 vs. RF FREQUENCY PLO = +3dBm 33 INPUT IP3 (dBm) 31 29 27 25 23 MAX2043 toc05 INPUT IP3 vs. RF FREQUENCY MAX2043 toc06 35 TC = +85C 33 TC = +25C INPUT IP3 (dBm) 31 29 27 25 23 1500 1700 1900 2100 TC = -40C 35 35 33 INPUT IP3 (dBm) 31 29 27 25 23 VCC = 4.75V VCC = 5.0V VCC = 5.25V PLO = 0dBm PLO = -3dBm 2300 1500 1700 1900 2100 2300 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) RF FREQUENCY (MHz) RF FREQUENCY (MHz) NOISE FIGURE vs. RF FREQUENCY MAX2043 toc07 NOISE FIGURE vs. RF FREQUENCY MAX2043 toc08 NOISE FIGURE vs. RF FREQUENCY MAX2043 toc09 11 TC = +85C 10 NOISE FIGURE (dB) 9 TC = +25C 8 7 TC = -40C 6 5 1600 1750 1900 2050 2200 2350 11 10 NOISE FIGURE (dB) 9 8 7 6 5 11 10 VCC = 5.0V NOISE FIGURE (dB) 9 VCC = 5.25V 8 7 6 5 VCC = 4.75V PLO = -3dBm, 0dBm, +3dBm 2500 1600 1750 1900 2050 2200 2350 2500 1600 1750 1900 2050 2200 2350 2500 RF FREQUENCY (MHz) RF FREQUENCY (MHz) RF FREQUENCY (MHz) 2LO - 2RF RESPONSE vs. RF FREQUENCY MAX2043 toc10 2LO - 2RF RESPONSE vs. RF FREQUENCY MAX2043 toc11 2LO - 2RF RESPONSE vs. RF FREQUENCY PRF = 0dBm MAX2043 toc12 85 TC = +25C 2LO - 2RF RESPONSE (dBc) 75 TC = +85C PRF = 0dBm 85 PRF = 0dBm PLO = +3dBm 85 2LO - 2RF RESPONSE (dBc) 75 2LO - 2RF RESPONSE (dBc) 75 VCC = 5.25V 65 65 PLO = 0dBm 55 PLO = -3dBm 65 55 TC = -40C 55 VCC = 4.75V VCC = 5.0V 45 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) 45 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) 45 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) _______________________________________________________________________________________ 5 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer MAX2043 Typical Operating Characteristics (continued) (MAX2043 Typical Application Circuit, C2 not installed, RFTAP = GND, VCC = +5.0V, PLO = 0dBm, LOSEL = "0" (LO2 selected), PRF = 0dBm, fLO > fRF, fIF = 200MHz, unless otherwise noted.) Downconverter Curves 2LO - 2RF RESPONSE vs. RF FREQUENCY LOSEL = "1" (LO1 SELECTED) MAX2043 toc13 2LO - 2RF RESPONSE vs. RF FREQUENCY LOSEL = "1" (LO1 SELECTED) MAX2043 toc14 2LO - 2RF RESPONSE vs. RF FREQUENCY LOSEL = "1" (LO1 SELECTED) PRF = 0dBm VCC = 5.25V 75 VCC = 4.75V, 5.0V, 5.25V 65 MAX2043 toc15 MAX2043 toc21 MAX2043 toc18 85 TC = +25C 2LO - 2RF RESPONSE (dBc) 75 PRF = 0dBm 85 PRF = 0dBm 85 2LO - 2RF RESPONSE (dBc) 75 PLO = +3dBm 65 PLO = 0dBm 65 TC = +25C, +85C 55 TC = -40C 45 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) 55 PLO = -3dBm 45 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) 2LO - 2RF RESPONSE (dBc) 55 45 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) 3LO - 3RF RESPONSE vs. RF FREQUENCY MAX2043 toc16 3LO - 3RF RESPONSE vs. RF FREQUENCY PRF = 0dBm 3LO - 3RF RESPONSE (dBc) 75 PLO = 0dBm, +3dBm MAX2043 toc17 3LO - 3RF RESPONSE vs. RF FREQUENCY 85 PRF = 0dBm VCC = 5.0V VCC = 5.25V 65 85 PRF = 0dBm 3LO - 3RF RESPONSE (dBc) 75 85 3LO - 3RF RESPONSE (dBc) TC = +85C 75 65 TC = -40C 55 TC = +25C 65 PLO = -3dBm 55 55 VCC = 4.75V 45 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) 45 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) 45 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) INPUT P1dB vs. RF FREQUENCY MAX2043 toc19 INPUT P1dB vs. RF FREQUENCY PLO = +3dBm 26 INPUT P1dB (dBm) 25 24 23 22 21 20 PLO = -3dBm PLO = 0dBm MAX2043 toc20 INPUT P1dB vs. RF FREQUENCY 27 26 INPUT P1dB (dBm) 25 24 23 22 21 20 VCC = 4.75V VCC = 5.25V VCC = 5.0V 27 26 INPUT P1dB (dBm) 25 24 23 22 21 20 1500 1700 1900 2100 TC = +85C TC = -40C TC = +25C 27 2300 1500 1700 1900 2100 2300 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) RF FREQUENCY (MHz) RF FREQUENCY (MHz) 6 _______________________________________________________________________________________ 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer MAX2043 Typical Operating Characteristics (continued) (MAX2043 Typical Application Circuit, C2 not installed, RFTAP = GND, VCC = +5.0V, PLO = 0dBm, LOSEL = "0" (LO2 selected), PRF = 0dBm, fLO > fRF, fIF = 200MHz, unless otherwise noted.) Downconverter Curves LO SWITCH ISOLATION vs. LO FREQUENCY MAX2043 toc22 LO SWITCH ISOLATION vs. LO FREQUENCY MAX2043 toc23 LO SWITCH ISOLATION vs. LO FREQUENCY MAX2043 toc24 60 60 60 LO SWITCH ISOLATION (dB) LO SWITCH ISOLATION (dB) TC = -40C 50 LO SWITCH ISOLATION (dB) 50 50 TC = +85C 40 TC = +25C 40 PLO = -3dBm, 0dBm, +3dBm 40 VCC = 4.75V, 5.0V, 5.25V 30 1500 1700 1900 2100 2300 2500 LO FREQUENCY (MHz) 30 1500 1700 1900 2100 2300 2500 LO FREQUENCY (MHz) 30 1500 1700 1900 2100 2300 2500 LO FREQUENCY (MHz) LO LEAKAGE AT IF PORT vs. LO FREQUENCY MAX2043 toc25 LO LEAKAGE AT IF PORT vs. LO FREQUENCY MAX2043 toc26 LO LEAKAGE AT IF PORT vs. LO FREQUENCY MAX2043 toc27 -20 -20 -20 TC = +25C LO LEAKAGE (dBm) -30 TC = -40C LO LEAKAGE (dBm) LO LEAKAGE (dBm) -30 -30 PLO = -3dBm, 0dBm, +3dBm -40 -40 TC = +85C -40 VCC = 4.75V, 5.0V, 5.25V -50 1700 1900 2100 2300 2500 LO FREQUENCY (MHz) -50 1700 1900 2100 2300 2500 LO FREQUENCY (MHz) -50 1700 1900 2100 2300 2500 LO FREQUENCY (MHz) LO LEAKAGE AT RF PORT vs. LO FREQUENCY MAX2043 toc28 LO LEAKAGE AT RF PORT vs. LO FREQUENCY MAX2043 toc29 LO LEAKAGE AT RF PORT vs. LO FREQUENCY -10 LO LEAKAGE AT RF PORT (dBm) -20 -30 -40 -50 -60 -70 -80 VCC = 4.75V, 5.0V, 5.25V MAX2043 toc30 0 -10 LO LEAKAGE AT RF PORT (dBm) -20 -30 -40 -50 -60 -70 -80 1500 1700 1900 2100 2300 TC = -40C TC = +85C TC = +25C 0 -10 LO LEAKAGE AT RF PORT (dBm) -20 -30 -40 -50 PLO = 0dBm -60 -70 -80 PLO = -3dBm PLO = +3dBm 0 2500 1500 1700 1900 2100 2300 2500 1500 1700 1900 2100 2300 2500 LO FREQUENCY (MHz) LO FREQUENCY (MHz) LO FREQUENCY (MHz) _______________________________________________________________________________________ 7 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer MAX2043 Typical Operating Characteristics (continued) (MAX2043 Typical Application Circuit, C2 not installed, RFTAP = GND, VCC = +5.0V, PLO = 0dBm, LOSEL = "0" (LO2 selected), PRF = 0dBm, fLO > fRF, fIF = 200MHz, unless otherwise noted.) Downconverter Curves RF-TO-IF ISOLATION vs. RF FREQUENCY MAX20343 toc31 RF-TO-IF ISOLATION vs. RF FREQUENCY MAX2043 toc32 RF-TO-IF ISOLATION vs. RF FREQUENCY MAX2043 toc33 50 45 RF-TO-IF ISOLATION (dB) 40 35 30 25 20 1500 1700 1900 2100 TC = -40C TC = +85C 50 45 RF-TO-IF ISOLATION (dB) 40 35 PLO = -3dBm, 0dBm, +3dBm 30 25 20 50 45 RF-TO-IF ISOLATION (dB) 40 35 VCC = 4.75V, 5.0V, 5.25V 30 25 20 TC = +25C 2300 1500 1700 1900 2100 2300 1500 1700 1900 2100 2300 RF FREQUENCY (MHz) RF FREQUENCY (MHz) RF FREQUENCY (MHz) RF PORT RETURN LOSS vs. RF FREQUENCY MAX2043 toc34 IF PORT RETURN LOSS vs. IF FREQUENCY MAX2043 toc35 LO SELECTED RETURN LOSS vs. LO FREQUENCY MAX2043 toc36 0 5 RF PORT RETURN LOSS (dB) 10 15 20 PLO = -3dBm, 0dBm, +3dBm 25 30 1000 1500 2000 2500 0 LOW FREQ MATCH SET BY T1 5 IF PORT RETURN LOSS (dB) 10 15 20 25 30 VCC = 5.25V VCC = 4.75V 0 LO SELECTED RETURN LOSS (dB) 5 10 15 20 25 30 PLO = -3dBm PLO = 0dBm, +3dBm VCC = 5.0V 3000 0 100 200 300 400 500 1000 1500 2000 2500 3000 RF FREQUENCY (MHz) IF FREQUENCY (MHz) LO FREQUENCY (MHz) LO UNSELECTED RETURN LOSS vs. LO FREQUENCY MAX2043 toc37 SUPPLY CURRENT vs. TEMPERATURE (TC) MAX2043 toc38 0 LO UNSELECTED RETURN LOSS (dB) 5 10 15 20 25 30 1000 1500 2000 2500 PLO = -3dBm, 0dBm, +3dBm 130 120 SUPPLY CUIRRENT (mA) 110 100 VCC = 5.0V 90 80 70 VCC = 4.75V VCC = 5.25V 3000 -40 -15 10 35 60 85 LO FREQUENCY (MHz) TEMPERATURE (C) 8 _______________________________________________________________________________________ 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer MAX2043 Typical Operating Characteristics (MAX2043 Typical Application Circuit, C2 = 22pF, VCC = +5.0V, PLO = 0dBm, LOSEL = "1" (LO1 selected), PIF = 0dBm, fRF = fLO - fIF, fIF = 90MHz, unless otherwise noted.) Upconverter Curves CONVERSION LOSS vs. RF FREQUENCY MAX2043 toc39 CONVERSION LOSS vs. RF FREQUENCY MAX2043 toc40 CONVERSION LOSS vs. RF FREQUENCY MAX2043 toc41 9 TC = +85C 8 CONVERSION LOSS (dB) 9 9 8 CONVERSION LOSS (dB) 8 CONVERSION LOSS (dB) 7 7 PLO = -3dBm, 0dBm, +3dBm, +6dBm 7 VCC = 4.75V, 5.0V, 5.25V 6 TC = -40C 5 TC = +25C 6 6 5 5 4 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) 4 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) 4 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) INPUT IP3 vs. RF FREQUENCY MAX2043 toc42 INPUT IP3 vs. RF FREQUENCY MAX2043 toc43 INPUT IP3 vs. RF FREQUENCY MAX2043 toc44 37 TC = +25C 35 INPUT IP3 (dBm) 33 31 29 27 25 1500 1650 1800 1950 2100 2250 TC = -40C TC = +85C 37 35 INPUT IP3 (dBm) 33 31 29 27 25 PLO = -3dBm PLO = 0dBm, +3dBm, +6dBm 37 35 INPUT IP3 (dBm) 33 31 29 27 25 VCC = 4.75V, 5.0V, 5.25V 2400 1500 1650 1800 1950 2100 2250 2400 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) RF FREQUENCY (MHz) RF FREQUENCY (MHz) LO + 2IF REJECTION vs. RF FREQUENCY MAX2043 toc45 LO + 2IF REJECTION vs. RF FREQUENCY MAX2043 toc46 LO + 2IF REJECTION vs. RF FREQUENCY PIF = 0dBm VCC = 5.25V LO + 2IF REJECTION (dBc) 75 VCC = 5.0V VCC = 4.75V 65 MAX2043 toc47 85 PIF = 0dBm 85 PIF = 0dBm PLO = +6dBm LO + 2IF REJECTION (dBc) 75 PLO = +3dBm 65 85 LO + 2IF REJECTION (dBc) 75 TC = -40C TC = +25C 65 55 TC = +85C 55 PLO = -3dBm PLO = 0dBm 55 45 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) 45 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) 45 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) _______________________________________________________________________________________ 9 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer MAX2043 Typical Operating Characteristics (continued) (MAX2043 Typical Application Circuit, C2 = 22pF, VCC = +5.0V, PLO = 0dBm, LOSEL = "1" (LO1 selected), PIF = 0dBm, fRF = fLO - fIF, fIF = 90MHz, unless otherwise noted.) Upconverter Curves LO - 2IF REJECTION vs. RF FREQUENCY MAX2043 toc48 LO - 2IF REJECTION vs. RF FREQUENCY MAX2043 toc49 LO - 2IF REJECTION vs. RF FREQUENCY VCC = 5.25V LO - 2IF REJECTION (dBc) 75 PIF = 0dBm VCC = 5.0V MAX2043 toc50 MAX2043 toc56 MAX2043 toc53 85 TC = +25C LO - 2IF REJECTION (dBc) 75 85 PLO = +3dBm LO - 2IF REJECTION (dBc) 75 PLO = 0dBm PIF = 0dBm PIF = 0dBm 85 65 TC = +85C 55 TC = -40C 65 PLO = +6dBm 55 PLO = -3dBm 65 VCC = 4.75V 55 45 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) 45 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) 45 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) LO + 3IF REJECTION vs. RF FREQUENCY MAX2043 toc51 LO + 3IF REJECTION vs. RF FREQUENCY PIF = 0dBm LO + 3IF REJECTION (dBc) 75 MAX2043 toc52 LO + 3IF REJECTION vs. RF FREQUENCY 85 PIF = 0dBm 85 PIF = 0dBm TC = +85C LO + 3IF REJECTION (dBc) 75 85 LO + 3IF REJECTION (dBc) 75 65 TC = -40C TC = +25C 65 PLO = -3dBm, 0dBm, +3dBm, +6dBm 55 65 VCC = 4.75V, 5.0V, 5.25V 55 55 45 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) 45 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) 45 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) LO - 3IF REJECTION vs. RF FREQUENCY MAX2043 toc54 LO - 3IF REJECTION vs. RF FREQUENCY MAX2043 toc55 LO - 3IF REJECTION vs. RF FREQUENCY 85 PIF = 0dBm 85 TC = +25C, +85C LO - 3IF REJECTION (dBc) 75 PIF = 0dBm 85 PIF = 0dBm LO - 3IF REJECTION (dBc) LO - 3IF REJECTION (dBc) 75 75 65 TC = -40C 55 65 PLO = -3dBm, 0dBm, +3dBm, +6dBm 55 65 VCC = 4.75V, 5.0V, 5.25V 55 45 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) 45 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) 45 1500 1650 1800 1950 2100 2250 2400 RF FREQUENCY (MHz) 10 ______________________________________________________________________________________ 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer MAX2043 Typical Operating Characteristics (continued) (MAX2043 Typical Application Circuit, C2 = 22pF, VCC = +5.0V, PLO = 0dBm, LOSEL = "1" (LO1 selected), PIF = 0dBm, fRF = fLO - fIF, fIF = 90MHz, unless otherwise noted.) Upconverter Curves LO LEAKAGE AT RF PORT vs. LO FREQUENCY MAX2043 toc57 LO LEAKAGE AT RF PORT vs. LO FREQUENCY MAX2043 toc58 LO LEAKAGE AT RF PORT vs. LO FREQUENCY MAX2043 toc59 -30 LO LEAKAGE AT RF PORT (dBm) -30 LO LEAKAGE AT RF PORT (dBm) -30 LO LEAKAGE AT RF PORT (dBm) -40 TC = +25C -40 -40 -50 TC = +85C -50 PLO = -3dBm -60 PLO = 0dBm PLO = +3dBm PLO = +6dBm -70 -50 VCC = 4.75V, 5.0V, 5.25V -60 -60 TC = -40C -70 1600 1750 1900 2050 2200 2350 2500 LO FREQUENCY (MHz) -70 1600 1750 1900 2050 2200 2350 2500 1600 1750 1900 2050 2200 2350 2500 LO FREQUENCY (MHz) LO FREQUENCY (MHz) IF LEAKAGE AT RF vs. LO FREQUENCY MAX2043 toc60 IF LEAKAGE AT RF vs. LO FREQUENCY MAX2043 toc61 IF LEAKAGE AT RF vs. LO FREQUENCY MAX2043 toc62 -60 -60 -60 -70 IF LEAKAGE (dBm) IF LEAKAGE (dBm) TC = -40C, +25C, +85C -80 -70 PLO = -3dBm, 0dBm, +3dBm, +6dBm -80 IF LEAKAGE (dBm) -70 VCC = 4.75V, 5.0V, 5.25V -80 -90 -90 -90 -100 1600 1750 1900 2050 2200 2350 2500 LO FREQUENCY (MHz) -100 1600 1750 1900 2050 2200 2350 2500 LO FREQUENCY (MHz) -100 1600 1750 1900 2050 2200 2350 2500 LO FREQUENCY (MHz) ______________________________________________________________________________________ 11 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer MAX2043 Pin Description PIN 1-5, 7, 10, 11, 12, 15, 18, 20, 22, 24, 25, 26, 28, 29, 31-36 6, 16, 21, 30 8 9 13, 14 17 19 23 27 EP NAME FUNCTION GND These pins have no internal connection and can be left open or connected to ground. It is suggested that these pins be grounded back to the exposed paddle where possible to improve pinto-pin isolation. VCC RFTAP RF Power-Supply Connection. Connected to external power supply (5V). Bypass to GND with a 0.01F capacitor as close to the pin as possible. Center Tap of the Internal RF Balun. Connected to internal RF balun center tap. Single-Ended 50 RF Input/Output. DC grounded internally. Adjust LO Drive. A 360 1% resistor connected from this pin to ground sets the LO driver bias. A 1.1V DC voltage appears across this resistor. Local Oscillator Input 1. Drive LOSEL high to select LO1. Local Oscillator Select. Logic 0 selects LO2 and 1 selects LO1. Local Oscillator Input 2. Drive LOSEL low to select LO2. Exposed Paddle. Ground the exposed paddle using multiple ground vias. IF+, IF- (ports) Differential IF Ports (50). 0V common-mode voltage. LO_ADJ LO1 LOSEL LO2 GND Detailed Description The MAX2043 can operate as either a downconverter or an upconverter mixer that provides 7.5dB of conversion loss with a typical 7.8dB noise figure. IIP3 is +31dBm for both upconversion and downconversion. The integrated baluns and matching circuitry allow for 50 single-ended interfaces to the RF port and two LO ports. The RF port can be used as an input for downconversion or an output for upconversion. A singlepole, double-throw (SPDT) switch provides 50ns switching time between the two LO inputs with 43dB of LO-to-LO isolation and -52dBm of LO leakage. Furthermore, the integrated LO buffer provides a high drive level to the mixer core, reducing the LO drive required at the MAX2043's inputs to a -3dBm to +6dBm 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 UMTS/WCDMA and 2G/2.5G/3G DCS 1800, PCS 1900, cdma2000, and WiMAX base stations. The MAX2043 is specified to operate over a 1700MHz to 3000MHz RF input range, a 1900MHz to 3000MHz LO range, and an IF range of near 0MHz to 350MHz. The external IF component sets the lower frequency range. RF Port and Balun For using the MAX2043 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. The RF return loss is typically 15dB over the entire 1700MHz to 3000MHz RF frequency range. For upconverter operation, the RF port is a single-ended output similarly matched to 50. An optional L-C BPF can be installed at the RF port to improve some upconverter performance. LO Inputs, Buffer, and Balun The MAX2043 is optimized for a 1900MHz to 3000MHz LO range. As an added feature, the MAX2043 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 typical GSM applications. If frequency-hopping is not employed, simply set the switch to either of the LO inputs. The switch is controlled by a digital input (LOSEL): logichigh selects LO1, logic-low selects LO2. LO1 and LO2 inputs are internally matched to 50, requiring only a 22pF DC-blocking capacitor. To avoid damage to the 12 ______________________________________________________________________________________ 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer part, voltage MUST be applied to VCC before digital logic is applied to LOSEL. A two-stage internal LO buffer allows a wide input power range for the LO drive. All guaranteed specifications are for an LO signal power from -3dBm to +6dBm. 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. Bias Resistor Bias current for the on-chip LO buffer is optimized by fine-tuning the off-chip resistor on pin 17 (R1). The current in the buffer amplifier can be reduced by raising the value of this resistor but performance (especially IP3) degrades. Doubling the value of this resistor reduces the current in the device by approximately half. MAX2043 Additional Tuning Components The MAX2043 mixer performance can be further enhanced with the use of external components. The values of these components depend on the application and the frequency band of interest. Consult the factory for further details. High-Linearity Mixer The core of the MAX2043 is a double-balanced, high-performance passive mixer. Exceptional linearity is provided by the large LO swing from the on-chip LO buffer. Differential IF The MAX2043 mixer has a DC to 350MHz IF frequency range where the low-end frequency depends on the frequency response of the external IF components. 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 system. After the balun, the IF return loss is better than 20dB. The user can use a differential IF amplifier on the mixer IF ports, but a DC block is required on both IF+ and IF- ports to keep external DC from entering the IF ports of the mixer. The mixer requires a DC ground return on either the RF tap pin (short tap to ground) or on each IF differential port (1k resistor or an inductor from each IF differential pin to ground). Layout Considerations A properly designed PC board 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 PC board exposed pad MUST be connected to the ground plane of the PC board. 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 PC board. The MAX2043 evaluation kit can be used as a reference for board layout. Gerber files are available upon request at www.maxim-ic.com. Power-Supply Bypassing Proper voltage supply bypassing is essential for highfrequency circuit stability. Bypass each V CC pin and TAP with the capacitors shown in the Typical Application Circuit. See Table 1. Place the TAP bypass capacitor to ground within 100 mils of the TAP pin. Applications Information Input and Output Matching The RF and LO inputs are internally matched to 50. No matching components are required. Return loss at the RF port is typically 17dB and return loss at the LO ports are typically 14dB. RF and LO inputs require only DC-blocking capacitors for interfacing. 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). Exposed Pad RF/Thermal Considerations The exposed paddle (EP) of the MAX2043's 36-pin thin QFN-EP package provides a low thermal-resistance path to the die. It is important that the PC board on which the MAX2043 is mounted be designed to conduct heat from the EP. In addition, provide the EP with a low-inductance path to electrical ground. The EP MUST be soldered to a ground plane on the PC board, either directly or through an array of plated via holes. ______________________________________________________________________________________ 13 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer MAX2043 Table 1. Component List Referring to the Typical Application Circuit COMPONENT C1 C2*, C4, C6, C8 C3 C5, C7, C9 R1 T1 U1 VALUE 4pF 22pF Not used 0.01F 360 1:1 MAX2043 DESCRIPTION Microwave capacitor (0402) Microwave capacitors (0402) Microwave capacitor (0603) Microwave capacitors (0402) 360 1% resistor (0402) Transformer (50:50) M/A-COM MABAES0029 Maxim IC Chip Information PROCESS: SiGe BiCMOS *Ground pin 8 for downconverter operation. Pin Configuration TOP VIEW GND GND GND GND GND GND GND 29 36 35 GND 28 LO2 GND GND GND LOSEL GND VCC VCC 34 33 32 31 30 GND 1 GND 2 GND 3 GND 4 GND 5 VCC 27 MAX2043 26 25 24 23 22 21 EXPOSED PADDLE 6 GND 7 RFTAP 8 RF 9 10 GND 11 GND 12 GND 13 IF+ 16 VCC 20 19 18 GND GND LO1 14 IF- 15 GND 17 LO_ADJ 14 ______________________________________________________________________________________ 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer Typical Application Circuit VCC MAX2043 C9 GND GND GND GND GND GND GND 36 GND GND GND GND VCC 35 34 33 32 31 30 29 GND 28 LO2 GND GND GND LOSEL GND VCC VCC LO SELECT C8 1 2 3 4 5 6 7 8 9 10 GND 11 GND 12 GND 13 IF+ U1 MAX2043 VCC 27 26 25 24 23 22 21 EXPOSED PADDLE LO2 GND VCC C4 C3 C2 GND RFTAP RF C1 20 19 GND LO1 C6 C7 RF LO1 14 IF- 15 GND 16 VCC 17 LO_ADJ 18 GND VCC C5 R1 NOTE: PINS 1, 2, 3, 4, 5, 7, 10, 11, 12, 15, 18, 20, 22, 24, 25, 26, 28, 29, 31, 32, 33, 34, 35, 36 OF U1 HAVE NO INTERNAL CONNECTIONS. THESE PINS CAN BE CONNECTED BACK TO THE GROUNDED EXPOSED PADDLE WHERE POSSIBLE TO IMPROVE PIN-TO-PIN ISOLATION. T1 3 5 IF 1 4 ______________________________________________________________________________________ 15 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer MAX2043 Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) E E/2 (NE-1) X e k D/2 D (ND-1) X e D2/2 e b E2/2 k C L C L D2 L E2 e L C L C L L1 L e e L A1 A2 A PACKAGE OUTLINE 36, 40, 48L THIN QFN, 6x6x0.8mm 21-0141 F 1 2 16 ______________________________________________________________________________________ QFN THIN.EPS 1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) MAX2043 NOTES: 1. DIMENSIONING & TOLERANCING CONFORM TO ASME Y14.5M-1994. 2. ALL DIMENSIONS ARE IN MILLIMETERS. ANGLES ARE IN DEGREES. 3. N IS THE TOTAL NUMBER OF TERMINALS. 4. THE TERMINAL #1 IDENTIFIER AND TERMINAL NUMBERING CONVENTION SHALL CONFORM TO JESD 95-1 SPP-012. DETAILS OF TERMINAL #1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED WITHIN THE ZONE INDICATED. THE TERMINAL #1 IDENTIFIER MAY BE EITHER A MOLD OR MARKED FEATURE. 5. DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN 0.25 mm AND 0.30 mm FROM TERMINAL TIP. 6. ND AND NE REFER TO THE NUMBER OF TERMINALS ON EACH D AND E SIDE RESPECTIVELY. 7. DEPOPULATION IS POSSIBLE IN A SYMMETRICAL FASHION. 8. COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS. 9. DRAWING CONFORMS TO JEDEC MO220, EXCEPT FOR 0.4mm LEAD PITCH PACKAGE T4866-1. 10. WARPAGE SHALL NOT EXCEED 0.10 mm. 11. MARKING IS FOR PACKAGE ORIENTATION REFERENCE ONLY. 12. NUMBER OF LEADS SHOWN FOR REFERENCE ONLY. PACKAGE OUTLINE 36, 40, 48L THIN QFN, 6x6x0.8mm 21-0141 F 2 2 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 ____________________ 17 (c) 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc. M. Reduta |
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