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| AM55-0004 250 mW Linear Power Amplifier and T/R Switch 1.8--2.0 GHz Features * * * * * * Operates Over Full PCN/PCS/PHS Bands Operates Over +3 V to +5 V Supply Voltage +24 dBm P1dB Typical at PA Out 35% PAE @ P1dB for Linear Operation On-Chip T/R Switch, Linear Operation to +30 dBm Low Cost SSOP-28 Plastic Package Rev. V2 SSOP-28 Description M/A-COM's AM55-0004 power amplifier/switch integrates a power amplifier and transmit/receive switch in a low cost SSOP package. The power amplifier delivers +24 dBm of linear power with high efficiency and can be operated at supply voltages as low as 2.7 V. It is ideally suited for QPSK or other linearly modulated systems in the 1.8 to 2.0 GHz frequency band. The power amplifier/switch is fully Ordering Information monolithic and requires only one output capacitor for power match. The T/R switch achieves good insertion loss Part Number Package and isolation without degrading the overall linearity. The AM55-0004 SSOP-28-Lead Plastic Packaging AM55-0004 is ideally suited for final stage power amplification in linear TDD systems. The integrated switch AM55-0004TR Forward Tape and Reel* is convenient for duplexing. The AM55-0004 can also be AM55-0004RTR Reverse Tape and Reel* used as a driver stage for high power systems. Typical applications include Japanese PHS systems or PCN/PCS AM55-0004SMB Designer's Kit transmit chains. M/A-COM's AM55-0004 is fabricated using a mature 0.5-micron gate length GaAs process. The * If specific reel size is required, consult factory for part number process features full passivation for increased assignment. performance and reliability. Electrical Specifications Test conditions: Frequency: 1.9 GHz, VDD1 = VDD2 = 4.8 V 10%, VG1 adjusted for 30 mA quiescent bias on VDD1, VG2 adjusted for 65 mA quiescent bias on VDD2, TA= +25C Parameter Power Amplifier Linear Gain Power Output @ P 1dB at PA OUT port Current From Positive Supply @ P 1dB Input VSWR T/R Switch Insertion Loss Input Match Isolation 1 Units Min. Typ. Max. dB dBm mA 22 22.5 75 24 24 175 2.0:1 275 dB 0.6 1.5:1 1.0 dB 15 20 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 * Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, * India Tel: +91.80.4155721 * China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. AM55-0004 250 mW Linear Power Amplifier and T/R Switch 1.8--2.0 GHz Pin Configuration Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 Rev. V2 Absolute Maximum Ratings 1 Description RF and DC Ground Complimentary T/R Switch Control, -4 V Tx model/0 V Rx mode RF and DC Ground Transmit side of T/R switch RD and DC Ground RF and DC Ground Common port of T/R switch which is connected to the antenna RF and DC Ground Receive side of T/R switch RF and DC Ground RF and DC Ground Positive bias for the first stage of PA, +2.7 to +6.0 volts Sleep mode control of fist stage of PA ONLY 0 V -first PA stage on -4 V--first PA stage off RF and DC Ground RF and DC Ground RF input of the Power Amplifier RF and DC Ground Negative bias control for the first PA stage, voltage divider is on the MMIC, adjusted to set VDD1 quiescent bias current, which is typically 30 mA. Input impedance : 10 k RF and DC Ground Negative bias control for the second PA stage, adjusted to set VDD2 quiescent bias current, which is typically 65 mA. Input impedance : > 1 M Second Stage RF and DC Ground Second Stage RF and DC Ground Second Stage RF and DC Ground Second Stage RF and DC Ground RF output of the Power Amplifier Positive bias for the second stage of the PA, +2.7 to +6.0 volts T/R Switch Control, 0 V Tx model/ 4 V Rx mode RF and DC Ground Operating Temperature Storage Temperature Pin Name GND VSW GND Tx IN GND GND ANT IN/OUT GND Rx OUT GND GND VDD1 SAVE Tx Parameter Max. Input Power 2 2 Absolute Maximum +10 VDC VDD = 7V VGG = -5 V VDD - VGG = 8V -40C to +85C -65C to +150C Operating Voltages 1. Exceeding any one or combination of these limits may cause permanent damage to this device. 2. Ambient temperature (TA) = +25C. Truth Table Operating Mode PA Tx PA Sleep T/R Switch TX T/R Switch Rx X = Don't Care VSW X X 0 Volts -4.0 Volts VSW X X -4.0 Volts 0 Volts SAVE Tx 0V -4.0 Volts X X 14 15 16 17 18 GND GND PA IN GND VG1 Functional Diagram and Pin Configuration 19 20 GND VG2 21 22 23 24 25 26 27 28 GND GND GND GND PA OUT VDD2 VSW GND 2 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 * Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, * India Tel: +91.80.4155721 * China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. AM55-0004 250 mW Linear Power Amplifier and T/R Switch 1.8--2.0 GHz Power Amplifier Small Signal Performance1 Power Amplifier CW Performance at1.9 GHz1 Rev. V2 1. All data measured at TA = +25C and VG1, VG2 adjusted for first stage quiescent current of 30 mA and second stage current of 65 mA, respectively. 3 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 * Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, * India Tel: +91.80.4155721 * China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. AM55-0004 250 mW Linear Power Amplifier and T/R Switch 1.8--2.0 GHz Power Amplifier Temperature Performance1 Rev. V2 Power Amplifier Spurious Response at Various Supply Voltages1 1. All data measured at TA = +25C and VG1, VG2 adjusted for first stage quiescent current of 30 mA and second stage current of 65 mA, respectively. 4 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 * Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, * India Tel: +91.80.4155721 * China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. AM55-0004 250 mW Linear Power Amplifier and T/R Switch 1.8--2.0 GHz Power Amplifier Spectral Response Under Modulation Drive (/4 DQPSK, a = 0.5, 384 kB/sec, 9-bit PN code) Rev. V2 Transmit/Receive Switch Performance Output Power Under Modulation VD (volts) 3 3.6 4 4.8 6 20.5 21.4 22.2 23.4 23.7 2 POUT (dBm) 1. Spectral output is tested under the following conditions: Modulation scheme is /4 DQPSK with a bit transfer rate of 384 kB/sec and a root Nyquist filter with a = 0.5 per RCR STD-28. The spectrum analyzer settings are as follows: Resolution bandwidth: 10 kHz Video bandwidth: 100 kHz Sweep time: 5 seconds 2. This chart documents the modulated output power delivered for a fixed adjacent channel interference (ACI) rejection of 55 5 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 * Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, * India Tel: +91.80.4155721 * China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. AM55-0004 250 mW Linear Power Amplifier and T/R Switch 1.8--2.0 GHz Recommended PCB Configuration Rev. V2 External Circuitry Parts List Label C1 - C5 C6 - C8 C9 C10 R1 R2 R3 Tline Value 1000 pF 68 pF 1.5 pF 15 pF 2.7 k 1.5 k 150 0.250 in. long Purpose Low Frequency bypass RF bypass Output power tuning Reduces low frequency gain Voltage divider to VG2 Voltage divider to VG2 Reduces low frequency gain Power match The PCB dielectric between RF traces and RF ground layers should be chosen to reduce RF discontinuities between 50- lines and package pins. M/A-COM recommends an FR-4 dielectric thickness of 0.008 in. (0.2 mm), yielding a 50- line width of 0.015 in. (0.38 mm). The recommended metalization thickness is 1 oz. copper. Shaded traces are vias to DC routing layer and traces on DC routing layer. Biasing Procedure The AM55-0004 requires that VGG bias be applied prior to any VDD bias. Permanent damage may occur if this procedure is not followed. All FETs in the PA will draw excessive current and damage internal circuitry. All off-chip components are low-cost surface mount components obtainable from multiple sources. (0.020 in. x 0.040 in. or 0.030 in. x 0.050 in.) External Circuitry 6 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 * Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, * India Tel: +91.80.4155721 * China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. AM55-0004 250 mW Linear Power Amplifier and T/R Switch 1.8--2.0 GHz Designer's Kit (AM55-0004SMB) The AM55-0004SMB Designer's Kit allows for immediate evaluation of M/A-COM's AM55-0004 integrated Power Amplifier and T/R Switch. The evaluation board consists of an AM55-0004, recommended external surface mount circuitry, RF connectors and a DC multipin connector, all mounted to a multi-layer FR-4 PCB. Other items included in the Designer's Kit: a floppy disk (with typical performance data and a .DXF file of the recommended PCB layout) and any additional Application Notes. The AM55-0004SMB PA/Switch evaluation PCB and block diagram are illustrated below with all functional ports labeled. Rev. V2 P/A Switch Sample Board Functional Block Diagram DC Connector Pinout PCB DC Connector 1 2 3 4 5 6 7 8 9 10 7 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 * Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, * India Tel: +91.80.4155721 * China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. Function N/C Device Pin Number N/C 12 13 N/C 13 18 2 N/C 2 18 PCB DC Connector 11 12 13 14 15 16 17 18 19 20 Function VSW Device Pin Number 27 18 27 N/C 20 18 N/C 20 N/C 26 VDD1 (+ 4.8 V) SAVE Tx (0 V/-4 V) GND VG1 VSW GND SAVE Tx (0 V/-4 V) VG1 VSW GND VG2 VG1 N/C VG2 N/C VDD2 ( + 4.8 V) VSW VG1 AM55-0004 250 mW Linear Power Amplifier and T/R Switch 1.8--2.0 GHz AM55-0004SMB Biasing Procedure In order to prevent transients which may damage the MMIC, please adhere to the following procedure. * Turn on all power supplies and set all voltages to 0 volts BEFORE connecting the power supplies to the DC connector. * Apply -4.0 volt supply or GND to DC connector pin 9 (VSW, see truth table for desired mode). * Apply -4.0 volt supply or GND to DC connector pin 13 (VSW, see truth table for desired mode). * Apply a -4.0 volt supply to the DC connector pin 16 (VG1). * Apply a -4.0 volt supply to the DC connector pin 18 (VG2). * Apply a +4.8 volt supply to the DC connector pin 2 (VDD1). * Apply a +4.8 volt supply to the DC connector pin 20 (VDD2). * Apply GND to DC connector pin 5 (Save Tx). * Adjust VG1 supply for desired VDD1 quiescent current (typically 30 mA). * Adjust VG2 supply for desired VDD2 quiescent current (typically 65 mA). * Change voltage on DC connector pin 5 as required (Save Tx, see truth table for desired mode). * Apply RF power and test. * To power off, reverse above procedure 1. Set VG1 & VG2 to -4 V. 2. Set VDD1 & VDD2 to 0 V. 3. Set control voltage supplies to 0 V. 4. Disconnect bias lines from DC connector. 5. Turn off power supplies. Rev. V2 Evaluation PCB and RF Connector Losses Port Reference PA IN PA OUT Tx IN ANT IN/OUT Rx OUT Estimated Loss (dB) 0.15 0.20 0.20 0.20 0.20 The DC connector on the Designer's Kit PCB allows selection of all the device's operating modes. It is accomplished by one or more of the following methods: 1. A mating female multi-pin connector (Newark Electronics Stock # 46F-4658, not included) 2. Wires soldered to the necessary pins (not included) 3. Clip leads (not included) 4. A combination of clip leads or wires and jumpers (jumpers included as required) 8 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 * Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, * India Tel: +91.80.4155721 * China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. |
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