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| RF2422 2.5GHZ DIRECT QUADRATURE MODULATOR RoHS Compliant & Pb-Free Product Package Style: SOIC-16 Features Single 5V Power Supply Integrated RF Quadrature Network No Tuning Required Low LO Input Level Digitally Controlled Power Down Mode 800MHz to 2500MHz Operation I REF 1 Q REF 2 GND2 3 GND2 4 GND2 5 LO 6 VCC1 7 PD 8 POWER CONTROL 16 I SIG 15 Q SIG 14 GND1 13 GND1 12 GND1 11 VCC2 10 GND1 9 RF OUT -45 +45 Applications Digital Communications Systems Spread-Spectrum Communication Systems GMSK,QPSK,DQPSK,QAM Modulation GSM, DCS 1800, JDC, DAMPS Systems Commercial and Consumer Systems Functional Block Diagram Product Description The RF2422 is a monolithic integrated quadrature modulator IC capable of universal direct modulation for high-frequency AM, PM, or compound carriers. This low-cost IC implements differential amplifiers for the modulation inputs, 90 carrier phase shift network, carrier limiting amplifiers, two matched double-balanced mixers, summing amplifier, and an output RF amplifier which will drive 50 from 800MHz to 2500MHz. Component matching, which can only be accomplished with monolithic construction, is used to full advantage to obtain excellent amplitude balance and phase accuracy. Ordering Information RF2422 RF2422PCBA-41X 2.5GHz Direct Quadrature Modulator Fully Assembled Evaluation Board Optimum Technology Matching(R) Applied GaAs HBT GaAs MESFET InGaP HBT SiGe BiCMOS Si BiCMOS SiGe HBT GaAs pHEMT Si CMOS Si BJT GaN HEMT RF MICRO DEVICES(R), RFMD(R), Optimum Technology Matching(R), Enabling Wireless ConnectivityTM, PowerStar(R), POLARISTM TOTAL RADIOTM and UltimateBlueTM are trademarks of RFMD, LLC. BLUETOOTH is a trademark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. (c)2006, RF Micro Devices, Inc. Rev A6 DS070817 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 1 of 10 RF2422 Absolute Maximum Ratings Parameter Supply Voltage Input LO and RF Levels Operating Ambient Temperature Storage Temperature Rating -0.5 to +7.5 +10 -40 to +85 -40 to +150 Unit VDC dBm C C Caution! ESD sensitive device. Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. RoHS status based on EUDirective2002/95/EC (at time of this document revision). The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice. Parameter Carrier Input Frequency Range Power Level Input VSWR Min. 800 -6 Specification Typ. Max. 2500 +6 Unit MHz dBm At 900MHz At 1800MHz At 2500MHz Condition T=25C, VCC =5V 5:1 1.8:1 1.2:1 Modulation Input Frequency Range Reference Voltage (VREF) Maximum Modulation (I&Q) Gain Asymmetry Quadrature Phase Error Input Resistance Input Bias Current 0.2 3 30 40 -3 50 3.5:1 1.3:1 1.15:1 Harmonic Output Sideband Suppression Carrier Suppression IM3 Suppression -30 25 30 30 25 Broadband Noise Floor -145 -152 dBm/Hz dBm/Hz 100 50 2.8 1.0 1.2 ns k V V Threshold voltage Threshold voltage -35 35 35 35 30 dBc dB dB dB dB Intermodulation of the carrier and the desired RF signal Intermodulation of baseband signals At 20MHz offset, VCC =5V. Tied to VREF: ISIG, QSIG, IREF, and QREF. At 850MHz At 1900MHz +3 DC 2.0 3.0 VREF 1.0 250 MHz V V dB k A LO=2GHz and -5dBm, I&Q=2.0VPP, SSB dBm At 900MHz At 2000MHz At 2500MHz RF Output Output Power Output Impedance Output VSWR Power Down Turn On/Off Time PD Input Resistance Power Control "ON" Power Control "OFF" 2 of 10 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Rev A6 DS070817 RF2422 Parameter Power Supply Voltage 4.5 Current 45 5 6.0 50 25 V V mA A Specifications Operating Limits Operating Power Down Min. Specification Typ. Max. Unit Condition Rev A6 DS070817 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 3 of 10 RF2422 Pin 1 Function I REF Description Reference voltage for the I mixer. This voltage should be the same as the DC voltage supplied to the I SIG pin. A voltage of 3.0V is recommended. The SIG and REF inputs are inputs of a differential amplifier. Therefore the REF and SIG inputs are interchangeable. If swapping the I SIG and I REF pins, the Q SIG and Q REF also need to be swapped to maintain the correct phase. It is also possible to drive the SIG and REF inputs in a balanced mode. This will increase the gain. Interface Schematic Q SIG 100 Q REF 100 425 425 2 Q REF Reference voltage for the Q mixer. This voltage should be the same as the DC voltage supplied to the Q SIG pin. A voltage of 3.0V is recommended. Q SIG 100 Q REF 100 425 425 3 4 5 6 GND2 GND2 GND2 LO Ground connection of the LO phase shift network. This pin should be connected directly to the ground plane. Same as pin 3. Same as pin 3. The input of the phase shifting network. This pin has an internal DC-blocking capacitor. At frequencies higher than 2GHz this port is well-matched to 50. This port is voltage driven so matching at lower frequencies is not required. Power supply for all circuits except the RF output stage. An external capacitor is needed if no other low frequency bypass capacitor is nearby. Power Down control. When this pin is "low", all circuits are shut off. A "low" is typically 1.2V or less at room temperature.When this pin is "high" (VCC), all circuits are operating normally. If PD is below VCC, output power and performance will be degraded. Operating in this region is not recommended, although it might be useful in some applications where power control is required. This is the 50 RF Output. This pin has an internal DC-blocking capacitor. At frequencies higher than 2GHz this port is well-matched. Typical impedances at lower frequencies are: 24-j30 @ 1GHz, 27-j10 @ 1.4GHz, 31j3 @ 1.8GHz. At those frequencies, external matching may be needed to optimize output power. LO 7 8 VCC1 PD VCC 200 PD 9 RF OUT RF OUT 10 11 12 13 14 15 GND3 VCC2 GND1 GND1 GND1 Q SIG Ground connection for the RF output stage. This pin should be connected directly to the ground plane. Power supply for the RF Output amplifier. An external capacitor is needed if no other low frequency bypass capacitor is near by. Ground connection for the LO and baseband amplifiers, and for the mixers. This pin should be connected directly to the ground plane. Same as pin 12. Same as pin 12. Baseband input to the Q mixer. This pin is DC-coupled. Maximum output power is obtained when the input signal has a peak to peak amplitude of 2V. The recommended DC level for this pin is 3.0V. The peak minimum voltage on this pin (VREF - peak modulation amplitude) should never drop below 2.0V. The peak maximum voltage on this pin (VREF + peak modulation amplitude) should never exceed 4.0V. See pin 2. 4 of 10 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Rev A6 DS070817 RF2422 Pin 16 Function I SIG Description Baseband input to the I mixer. This pin is DC-coupled. Maximum output power is obtained when the input signal has a peak to peak amplitude of 2V. The recommended DC level for this pin is 3.0V. The peak minimum voltage on this pin (VREF - peak modulation amplitude) should never drop below 2.0V. The peak maximum voltage on this pin (VREF + peak modulation amplitude) should never exceed 4.0V. Interface Schematic See pin 1. Package Drawing -A0.157 0.150 0.008 0.004 0.393 0.386 0.018 0.014 0.050 0.244 0.229 8 MAX 0 MIN 0.009 0.007 0.068 0.053 NOTES: 1. Shaded lead is Pin 1. 2. All dimensions are excluding mold flash. 3. Lead coplanarity - 0.005 with respect to datum "A". 0.034 0.016 Rev A6 DS070817 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 5 of 10 RF2422 Application Schematic AC-Coupled VREF C R R 1 2 3 4 S 16 R R I SIG C Q SIG C 15 14 13 12 11 10 POWER CONTROL 9 100 nF LO IN VCC 5 6 VCC -45 +45 100 nF 7 8 RF OUT PD 100 nF NOTE: The values of R and C depend on the minimum baseband frequency (i.e., the cutoff frequency of this high pass filter should be lower than the lowest frequency component in the I/Q spectrum). 6 of 10 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Rev A6 DS070817 RF2422 Application Schematic DC-Coupled VREF 1 100 nF 2 3 4 LO IN VCC 6 100 nF 7 8 PD 100 nF POWER CONTROL -45 +45 16 15 14 13 12 11 10 9 I SIG Q SIG 5 VCC 100 nF RF OUT Evaluation Board Schematic 1.5" x 1.5" P1 P1-1 1 2 NC 3 VCC GND NC P2-1 P2 1 2 3 REF GND 50 strip P2-1 C1 100 nF 1 2 3 4 5 J1 LO IN P1-1 C2 100 nF 50 strip 6 7 8 POWER CONTROL -45 +45 16 15 14 13 12 11 10 9 C3 100 nF 50 strip J4 I SIG 50 strip J3 Q SIG P1-1 J2 RF OUT 2422400A Rev A6 DS070817 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 7 of 10 RF2422 Evaluation Board Layout Board Size 1.510" x 1.510" Board Thickness 0.031", Board Material FR-4 8 of 10 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Rev A6 DS070817 RF2422 RoHS* Banned Material Content RoHS Compliant: Package total w eight in gram Compliance Date Code: Bill of Materials Revision: Pb Free Category: Bill of Materials Die Molding Com pound Lead Fram e Die Attach Epoxy Wire Solder Plating Yes 0.147 0520 Rev e3 Parts Per Million (PPM) Hg Cr VI 0 0 0 0 0 0 0 0 0 0 0 0 Pb 0 0 0 0 0 0 Cd 0 0 0 0 0 0 PBB 0 0 0 0 0 0 PBDE 0 0 0 0 0 0 This RoHS banned m aterial content declaration w as prepared solely on inform ation, including analytical data, provided to RFMD by its suppliers, and applies to the Bill of Materials (BOM) revision noted above. * DIRECTIVE 2002/95/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment Rev A6 DS070817 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. 9 of 10 RF2422 10 of 10 7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Rev A6 DS070817 |
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