AM55-0003SMB中文资料
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FeaturesHighly Integrated Power Amplifier With T/R and Diversity SwitchesOperates Over 2.7 V to 6 V Supply VoltageHigh Linear Output Power (P1dB: +24 dBm)Individual Gate Control for Each Amplifier StageLow Cost SSOP-28 Plastic Package
DescriptionM/A-COM’s AM55-0003 is a GaAs power amplifier withintegrated transmit/receive and an antenna diversity switchin a low cost SSOP 28 plastic package. The poweramplifier delivers +24 dBm of linear power with highefficiency and can be operated with voltages as low as 2.7volts. The power amplifier switch is fully monolithic. TheT/R and diversity switches achieve good insertion loss andisolation without degrading the overall linearity. Theswitches can be controlled with CMOS logic levels.
The AM55-0003 is ideally suited for QPSK, BPSK or otherlinearly modulated systems in the 2.4 GHz ISM frequencyband. It can also be used in GFSK systems where levels of+25 dBm are required. Typical applications include WLANand wireless portable data collection. This power amplifiercan be combined with a transceiver IC (MD58-0001 orMD58-0002) 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 featuresfull passivation for increased performance and reliability.
Specifications Subject to Change Without NoticeV 2.0M/A-COM Inc.s1011 Pawtucket Boulevard, Lowell, MA 01853 USAsTelephone: 800-366-22661
250 mW Power Amplifier with T/R and Diversity Switches2.4 - 2.5 GHzAM55-0003
SSOP-28
Preliminary Specifications
ParameterUnitsMin.Typ.Max.Power AmplifierLinear GaindB242832VSWR In/Out1.75:1Output Power @ P1dBdBm22.524.5Second Harmonic @ P1dBdBc-200
Third Harmonic @ P1dBdBc-30-10IDD@ P1dB(VDD1+ VDD2+ VDD3)mA270375T/R and Diversity SwitchesInsertion LossdB1.2IsolationdB1012VSWR In/Out1.5:1
Typical Electrical Specifications Test Conditions: Frequency: 2.45 GHz, VDD1,2,3= 5 V±5%, VG1adjusted for 20 mA quiescent bias on VDD1, VG2
adjusted for 70 mA quiescent bias on VDD2, VG3adjusted for 90 mA quiescent bias on VDD3, TA= +25°C
.0250,64
.057±.0031,45±0,08
.0275+.0025-.0025
0,7+0,06-0,06
9,91+0,09-0,1
.3900+.0037-.0041
PIN 1.236±.0085,99±0,2
.004 (0,10) .007±.0030,18±0,08
.010+.004-.001
0,25+0,1-0,03
.1540+.0034-.0043
3,91+0,09-0,11
.015 (0,38) X 45°
.028+.022-.013
0,71+0,56-0,33
0-8°.0080+.0018-.0005
+0,05-0,010,2
Part NumberDescriptionAM55-0003SSOP 28-Lead Plastic PackageAM55-0003TRForward Tape & Reel*
AM55-0003RTRReverse Tape & Reel*
AM55-0003SMBDesigner’s Kit
Ordering Information
*If specific reel size is required, consult factory for part number assignment.
Dimensions are inches over millimeters
qq q q q
元器件交易网www.cecb2b.com250 mW Power Amplifier with T/R and Diversity SwitchesAM55-0003
Specifications Subject to Change Without NoticeV 2.0M/A-COM Inc.s1011 Pawtucket Boulevard, Lowell, MA 01853 USAsTelephone: 800-366-22662
Control LineOperating
ANTT/RMode
CTRLCTRL
X1ReceiveX0Transmit0XANT 11XANT 2
Truth Table
Pin No.Pin NameDescription1ANT CTRLAntenna selection: Select ANT 1 (0V) or ANT 2 (+5 V)
2ANT COMMONCommon Port of Diversity Switch3GNDDC and RF Ground4ANT 1Output #1 of Diversity Switch5GNDDC and RF Ground6ANT 2Output #2 of Diversity Switch7GNDDC and RF Ground8RX OUTOutput of T/R Switch for receive mode9VG2Negative 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 VInput impedance: > 1 MΩ
10GNDDC and RF Ground11VDD1Positive bias for the first stage of the PA, 2.7 to 6 volts
12GNDDC and RF Ground13GNDDC and RF Ground14VG1Negative bias control for the first PA stage, adjusted to set VDD1quiescent bias current, which is typically 20 mA. Typical voltage at pin = -0.75 VInput impedance: > 1 MΩ
15RF INRF Input of the Power Amplifier16GNDDC and RF Ground17VG3Negative bias control for the third PA stage, adjusted to set VDD3quiescent bias current, which is typically 90 mA. Typical voltage at pin = -0.95 VInput impedance: > 1 MΩ
18VDD2Positive bias for the second stage of the PA, 2.7 to 6 volts
19GNDDC and RF Ground20GNDDC and RF Ground21GNDDC and RF Ground22GNDDC and RF Ground23VDD3Positive bias for the third stage of the PA, 2.7 to 6 volts
24GNDDC and RF Ground25RF OUTRF output of T/R switch and power amplifier for transmit mode
26T/R CTRL0 V for transmit mode, +5 V for receive mode
27VDDTRVDDfor T/R switch
28VDDANTVDDfor Diversity Switch
Pin ConfigurationFunctional Diagram and Pin Configuration Absolute Maximum Ratings
1
ParameterAbsolute MaximumMax. Input Power2+23 dBm