AM55-0003SMB

Preliminary Specifications 250 mW Power Amplifier with T/R and Diversity Switches 2.4 - 2.5 GHz AM55-0003 Features q SSOP-28 +.0025 .0275 -.0025 0,7 +0,06 -0,06 +.0034 .1540 -.0043 .236 ±.008 +0,09 5,99 ± 0,2 3,91 -0,11 +.0037 .3900 -.0041 9,91 +0,09 -0,1 q q q q Highly Integrated Power Amplifier With T/R and Diversity Switches Operates Over 2.7 V to 6 V Supply Voltage High Linear Output Power (P1dB: +24 dBm) Individual Gate Control for Each Amplifier Stage Low Cost SSOP-28 Plastic Package PIN 1 Description M/A-COM’s AM55-0003 is a GaAs power amplifier with integrated transmit/receive and an antenna diversity switch in a low cost SSOP 28 plastic package. The power amplifier delivers +24 dBm of linear power with high efficiency and can be operated with voltages as low as 2.7 volts. The power amplifier switch is fully monolithic. The T/R and diversity switches achieve good insertion loss and isolation without degrading the overall linearity. The switches can be controlled with CMOS logic levels. The AM55-0003 is ideally suited for QPSK, BPSK or other linearly modulated systems in the 2.4 GHz ISM frequency band. It can also be used in GFSK systems where levels of +25 dBm are required. Typical applications include WLAN and wireless portable data collection. This power amplifier can be combined with a transceiver IC (MD58-0001 or MD58-0002) to form a complete RF front end. M/A-COM's AM55-0003 is fabricated using a mature 0.5-micron gate length GaAs process. The process features full passivation for increased performance and reliability. .057 ±.003 1,45 ±0,08 .015 (0,38) X 45° +.0018 .0080 -.0005 0,2 +0,05 -0,01 0-8° +.022 .028 -.013 +0,56 0,71 -0,33 .007 ±.003 0,18 ±0,08 .025 0,64 +.004 .010 -.001 0,25 +0,1 -0,03 .004 (0,10) Dimensions are inches over millimeters Ordering Information Part Number AM55-0003 AM55-0003TR AM55-0003RTR AM55-0003SMB Description SSOP 28-Lead Plastic Package Forward Tape & Reel* Reverse Tape & Reel* Designer’s Kit * If specific reel size is required, consult factory for part number assignment. Typical Electrical Specifications Test Conditions: Frequency: 2.45 GHz, VDD 1,2, 3 = 5 V±5%, VG1 adjusted for 20 mA quiescent bias on VDD1, VG 2 adjusted for 70 mA quiescent bias on VDD2 , VG3 adjusted for 90 mA quiescent bias on VDD3 , TA = +25°C Parameter Power Amplifier Linear Gain VSWR In/Out Output Power @ P1dB Second Harmonic @ P1dB Third Harmonic @ P1dB IDD @ P1dB (VDD1 + VDD2 + VDD3) T/R and Diversity Switches Insertion Loss Isolation VSWR In/Out Specifications Subject to Change Without Notice Units dB dBm dBc dBc mA dB dB Min. 24 22.5 Typ. 28 1.75:1 24.5 -20 -30 270 1.2 Max. 32 0 -10 375 10 12 1.5:1 V 2.0 s M/A-COM Inc. s 1011 Pawtucket Boulevard, Lowell, MA 01853 USA Telephone: 800-366-2266 1 250 mW Power Amplifier with T/R and Diversity Switches Pin Configuration Pin No. 1 2 3 4 5 6 7 8 9 AM55-0003 1 Absolute Maximum Ratings Description Antenna selection: Select ANT 1 (0V) or ANT 2 (+5 V) Common Port of Diversity Switch DC and RF Ground Output #1 of Diversity Switch DC and RF Ground Output #2 of Diversity Switch DC and RF Ground Output of T/R Switch for receive mode Negative bias control for the second PA stage, adjusted to set VDD2 quiescent bias current, which is typically 70 mA. Typical voltage at pin = -0.55 V Input impedance: > 1 MΩ DC and RF Ground Positive bias for the first stage of the PA, 2.7 to 6 volts DC and RF Ground DC and RF Ground Negative bias control for the first PA stage, adjusted to set VDD1 quiescent bias current, which is typically 20 mA. Typical voltage at pin = -0.75 V Input impedance: > 1 MΩ RF Input of the Power Amplifier DC and RF Ground Negative bias control for the third PA stage, adjusted to set VDD3 quiescent bias current, which is typically 90 mA. Typical voltage at pin = -0.95 V Input impedance: > 1 MΩ Positive bias for the second stage of the PA, 2.7 to 6 volts DC and RF Ground DC and RF Ground DC and RF Ground DC and RF Ground Positive bias for the third stage of the PA, 2.7 to 6 volts DC and RF Ground RF output of T/R switch and power amplifier for transmit mode 0 V for transmit mode, +5 V for receive mode VDD for T/R switch VDD for Diversity Switch ANT CTRL ANT COMMON GND ANT 1 GND ANT 2 GND RX OUT VG2 GND VDD1 GND GND VG1 Pin Name ANT CTRL ANT COMMON GND ANT 1 GND ANT 2 GND RX OUT VG2 Parameter Max. Input Power 2 Operating Voltages 2,3 Operating Temperature Storage Temperature Absolute Maximum +23 dBm VDD = 8 V VGG = -8 V -40°C to +85°C -65°C to +150°C 1. Exceeding these limits may cause permanent damage. 2. Ambient temperature (TA) = +25°C 3. |VDD| + |VGG| not to exceed 12 volts. Truth Table Control Line ANT T/R CTRL CTRL X 1 X 0 0 X 1 X X - Don’t Care “0” = 0 V to 0.2 V @ 100 µA “1” = VDD to VDD - 0.2 V @ 200 µA Operating Mode Receive Transmit ANT 1 ANT 2 10 11 12 13 14 GND VDD1 GND GND VG1 Functional Diagram and Pin Configuration 1 28 VDD ANT VDD TR T/R CTRL RF OUT GND VDD3 GND GND GND GND VDD2 VG3 GND RF IN 15 16 17 RF IN GND VG3 18 19 20 21 22 23 24 25 26 27 28 VDD2 GND GND GND GND VDD3 GND RF OUT T/R CTRL VDD TR VDD ANT 14 15 Specifications Subject to Change Without Notice V 2.0 s M/A-COM Inc. s 1011 Pawtucket Boulevard, Lowell, MA 01853 USA Telephone: 800-366-2266 2 250 mW Power Amplifier with T/R and Diversity Switches AM55-0003 Power Amplifier Small Signal Performance1 Power Amplifier CW Performance at Various Supply Voltages1 LINEAR GAIN, VDD1 = VDD2 = VDD3 35 POWER OUTPUT @ 2.45 GHz, VDD1 = VDD2 = VDD3 30 25 6V 30 6V 5V GAIN (dB) 25 20 15 10 2.0 2.2 4V 3V POWER (dBm) 5V 20 4V 15 10 5 3V 2.4 2.6 2.8 3.0 -19 -14 -9 -4 1 FREQUENCY (GHz) POWER INPUT (dBm) INPUT MATCH -5 50 -10 POWER ADDED EFFICIENCY (%) @ 2.45 GHz, VDD1 = VDD2 = VDD3 5V 6V RETURN LOSS (dB) -15 -20 -25 6V 5V EFFICIENCY (%) 40 30 20 4V 10 0 -19 -14 -9 -4 3V 3V -30 2.0 2.2 2.4 2.6 4V 2.8 3.0 1 FREQUENCY (GHz) INPUT POWER (dBm) OUTPUT MATCH 0 0 GAIN COMPRESSION @ 2.45 GHz, VDD1 = VDD2 = VDD3 COMPRESSION (dBm) RETURN LOSS (dB) -1 -5 3V -2 -3 -4 -5 -6 -7 -19 -14 -9 -4 1 6V -10 4V 5V 6V 5V 3V -15 4V -20 2.0 2.2 2.4 2.6 2.8 3.0 FREQUENCY (GHz) INPUT POWER (dBm) 1. All data measured at TA = +25°C and VG1, VG2 and VG3 adjusted for first stage quiescent current of 20 mA, second stage current of 70 mA and third stage current of 90 mA, respectively. Specifications Subject to Change Without Notice V 2.0 s M/A-COM Inc. s 1011 Pawtucket Boulevard, Lowell, MA 01853 USA Telephone: 800-366-2266 3 250 mW Power Amplifier with T/R and Diversity Switches Power Amplifier Temperature Performance1 LINEAR GAIN, VDD1 = VDD2 = VDD 3 = +5 V 35 50 AM55-0003 Power Amplifier Spurious Response at Various Supply Voltages1 THIRD ORDER INTERMODULATION RATIO@ 2.45 GHz, (TONE SPACING 600 kHz) 6V +25°C 40 -20°C 30 GAIN (dB) 25 20 IMR (dBc) 5V 30 +70°C 15 20 3V 4V 10 10 2.0 2.2 2.4 2.6 2.8 3.0 9 13 17 21 25 FREQUENCY (GHz) FUNDAMENTAL POUT/ TONE (dBm) POWER OUTPUT @ 2.45 GHz, VDD1 = VDD2 = VDD 3 = +5 V 30 25 70 65 SECOND HARMONIC RATIO @ 2.45 GHz, VDD1 = VDD2 = VDD3 POWER (dBm) -20°C dBc 3V 5V 6V 60 55 50 45 20 15 +70°C 10 +25°C 5 0 -19 -14 -9 -4 1 40 35 15 17 4V 19 21 23 25 INPUT POWER (GHz) FUNDAMENTAL POUT (dBm) 0 GAIN COMPRESSION @ 2.45 GHz, VDD1 = VDD2 = VDD3 = +5 V +70°C THIRD HARMONIC RATIO @ 2.45 GHz, VDD1 = VDD2 = VDD 3 60 COMPRESSION (dB) 6V 55 -1 -20°C +25°C -3 -4 -5 -20 -15 -10 -5 0 5 5V 50 dBc 45 40 -2 4V 35 15 17 19 21 23 3V 25 INPUT POWER (dBm) FUNDAMENTAL POUT (dBm) 1. All data measured at TA = +25°C and VG1, VG2 and VG3 adjusted for first stage quiescent current of 20 mA, second stage current of 70 mA and third stage current of 90 mA, respectively. Specifications Subject to Change Without Notice V 2.0 s M/A-COM Inc. s 1011 Pawtucket Boulevard, Lowell, MA 01853 USA Telephone: 800-366-2266 4 250 mW Power Amplifier with T/R and Diversity Switches Transmit/Receive Switch Performance1 T/R INSERTION LOSS/ISOLATION (RECEIVE MODE) 0 -5 -10 -15 -20 -25 -30 2.0 2.2 2.4 2.6 2.8 3.0 0 AM55-0003 Diversity Switch Performance1 DIVERSITY SWITCH INSERTION LOSS/ISOLATION -5 -7 -9 -11 -13 -15 3.0 INSERTION LOSS (dB) ISOLATION (dB) -2 -3 -4 -5 -2 -3 -4 -5 2.0 2.2 2.4 2.6 2.8 FREQUENCY (GHz) FREQUENCY (GHz) T/R SWITCH MATCH (RECEIVE MODE) 0 0 DIVERSITY SWITCH MATCH RETURN LOSS (dB) RETURN LOSS (dB) -5 -10 -5 INPUT -10 INPUT -15 -20 -15 OUTPUT -20 2.0 2.2 2.4 2.6 2.8 3.0 OUTPUT -25 2.0 2.2 2.4 2.6 2.8 3.0 FREQUENCY (GHz) FREQUENCY (GHz) HARMONIC LEAKAGE AT ANT 1/ANT 2 @ 2.45 GHz 2 -20 -30 -40 -50 -60 LEAKAGE (dBm) THIRD HARMONIC SECOND HARMONIC -70 -80 10 -7 -4 -1 2 FUNDAMENTAL INPUT POWER (dBm) 1. All data measured with VDD TR = VDD ANT = +5 V, TA = +25°C. 2. Measured at 2.45 GHz at RF IN. Output measured at ANT 1 or ANT 2, with RF OUT and ANT COMMON terminated in 50 Ω. Specifications Subject to Change Without Notice V2.0 s M/A-COM Inc. s 1011 Pawtucket Boulevard, Lowell, MA 01853 USA Telephone: 800-366-2266 5 ISOLATION (dB) -1 INSERTION LOSS (dB) -1 250 mW Power Amplifier with T/R and Diversity Switches AM55-0003 Recommended PCB Configuration Layout View 0.0690 in. Cross-Section View RF Traces + Components RF Ground DC Routing R1 R2 R3 Customer Defined 0.975 in. R4 C14 C23 C15 C3 C16 C16 R5 R6 The PCB dielectric between RF traces and RF ground layers should be chosen to reduce RF discontinuities between 50-Ω lines and package pins. M/A-COM recommends an FR-4 dielectric thickness of 0.008 in. (0.2 mm), yielding a 50-Ω 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. C13 C12 C5 C11 C4 Biasing Procedure The AM55-0003 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. C25 C24 C7 C10 C9 C8 0.625 in. External Circuitry Parts List Label C1 - C6 C23 - C24 C7 - C16 C17 - C22 R1, R6 R3, R5 R2 R4 Value 22 pF 22 pF 1000 pF 0.01 µF 1.5 k Ω 5 kΩ 12 k Ω 1 kΩ Purpose Bypass (GHz) DC Block Bypass (MHz) Bypass (kHz) FET Gate Divider Network 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 C9 ANT CTRL C17 ANT COMMON ANT 1 ANT 2 RX OUT V G2 R3 R3 R6 C11 C25 C10 1 2 3 4 5 6 7 8 9 10 V DD1 C8 28 27 26 25 24 23 22 21 20 19 18 17 16 15 C14 C4 C16 C7 C21 VV DD DD (T/R ANT) (T/R,ANT) T/R CTRL C20 RF OUT C24 V DD3 C19 V DD2 C3 C15 C18 11 C22 C12 C5 12 13 14 14 R4 R1 R1 V G3 V G1 R2 R2 R5 C13 RF IN C23 Specifications Subject to Change Without Notice V 2.0 s M/A-COM Inc. s 1011 Pawtucket Boulevard, Lowell, MA 01853 USA Telephone: 800-366-2266 6 250 mW Power Amplifier with T/R and Diversity Switches AM55-0003 Designer’s Kit (AM55-0003SMB) The AM55-0003SMB Designer's Kit allows for immediate evaluation of M/A-COM's AM55-0003 integrated power amplifier with T/R and diversity switches. The evaluation board consists of an AM55-0003, recommended external surface mount circuitry, RF connectors and a DC multi-pin 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 AM55-0003SMB evaluation PCB and block diagram are illustrated below with all functional ports labeled. P/A Switch Sample Board RXOUT Functional Block Diagram PIN 19 PIN 19 #20 PIN 20 5V (DIV, TR) TR CTRL DIV CTRL PIN 1 PIN 1 PIN 2 RX OUT ANT2 RF IN RF IN PIN 20 PIN 2 VDD1 VG3 VG1 VDD3 VDD2 VG2 RF IN RF IN RXOUT RX OUT (LNA IN) (LNA IN) ANT1 ANT 2 ANT ANT22 ANT 1 ANT COMMON RF OUT ANT ANT11 RF OUT RFRF OUT OUT ANT COMMON ANT COMMON ANT COMMON (DIV SW) (DIV SW) DC Connector Pinout PCB DC Connector 1 2 3 4 5 6 7 8 9 10 Device Pin Number N/C 1 N/C N/C N/C 9 N/C 11 N/C 14 PCB DC Connector 11 12 13 14 15 16 17 18 19 20 Device Pin Number N/C 17 N/C 18 N/C 23 N/C 8 N/C 27, 28 Function GND ANT CTRL (0 V/ +5 V) N/C N/C N/C VG2 VSW VDD1 (+5 V) N/C VG1 Function N/C VG3 N/C VDD2 (+5 V) N/C VDD3 (+5 V) N/C T/R CTRL (0 V/ +5 V) GND VDD TR, VDD ANT(+5 V) Specifications Subject to Change Without Notice V 2.0 s M/A-COM Inc. s 1011 Pawtucket Boulevard, Lowell, MA 01853 USA Telephone: 800-366-2266 7 250 mW Power Amplifier with T/R and Diversity Switches AM55-0003SMB Biasing Procedure In order to prevent transients which may damage the MMIC, please adhere to the following procedure. q Turn on all power supplies and set all voltages to 0 volts BEFORE connecting the power supplies to the DC connector. q Apply a -5.0 volt supply to DC connector pin 10 (V ). G1 q Apply a -5.0 volt supply to DC connector pin 6 (V ). G2 q Apply a -5.0 volt supply to DC connector pin 12 (V ). G3 q Apply a +5.0 volt supply to the DC connector pin 20 (V DD TR, VDD ANT). q Apply a +5.0 volt supply to the DC connector pin 8 (V DD1). q Apply a +5.0 volt supply to the DC connector pin 14 (V DD2). q Apply a +5.0 volt supply to the DC connector pin 16 (V DD3). q Apply a GND or +5.0 volt supply to the DC connector pin 18 (T/R CTRL, see truth table for desired mode). q Apply a GND or +5.0 volt supply to the DC connector pin 2 (ANT CTRL, see truth table for desired mode). q Adjust V G1, VG2, VG3 supplies to -5 volts. q Adjust all V DD supplies to +5 volts. q Adjust V G1 supply for desired VDD1 quiescent current (typically 20 mA, VG1 nominally -2.5 volts). q Adjust V G2 supply for desired VDD2 quiescent current (typically 70 mA, VG2 nominally -2.5 volts). q Adjust V G3 supply for desired VDD3 quiescent current (typically 90 mA, VG3 nominally -2.5 volts). q To power off, reverse above procedure. 1) Set all VDD lines to 0 volts. 2) Set VG1, VG2 and VG3 to 0 volts. 3) Disconnect bias lines from DC connector. 4) Turn off power supplies. AM55-0003 Evaluation PCB and RF Connector Losses Port Reference RF IN RF OUT RX OUT (LNA IN) ANT COMMON (DIV SW) ANT 1 ANT 2 Loss (dB) 0.25 0.25 0.25 0.25 0.25 0.25 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) Specifications Subject to Change Without Notice V 2.0 s M/A-COM Inc. s 1011 Pawtucket Boulevard, Lowell, MA 01853 USA Telephone: 800-366-2266 8