
V 2.00
Features
Highly Integrated PA/Attenuator and T/R Switch
Low Current Consumption: 120 mA Typ.
Switch and Attenuator Controls CMOS Compatible
High Power (140 mW) and Low Power (16 mW)
Transmit Power Control
+5 V/-5 V Fixed Supply Voltages
Description
M/A-COM’s AM55-0007 is a GaAs power amplifier with an
integrated transmit/receive switch in a low cost SSOP 24
plastic package. The AM55-0007 employs active bias cir-
cuits that eliminate the need for external bias adjustment. A
‘Sleep Mode’ is incorporated which turns off current draw
from the positive supply of the PA during receive mode.
The AM55-0007 provides a 10-dB step attenuator for use as
a transmit power controller.
The AM55-0007 is designed for low power consumption
and is ideally suited for FSK systems in the 2.4 - 2.5 GHz
bands (North American ISM, Japanese RCR.32 and
European ETSI). Typical applications include WLAN and
wireless portable data collection.
This amplifier is also available with diversity switching
(AM55-0001). Either power amplifier can be combined with
a transceiver IC (MD58-0001) to form a complete RF front
end.
M/A-COM's AM55-0007 is fabricated using a mature
0.5-micron gate length GaAs process. The process features
full passivation for increased performance and reliability.
140 mW Power Amplifier with T/R Switch
2.4 - 2.5 GHz
AM55-0007
SSOP-24
Coming Attractions
Parameter
Test Conditions
Units
Min.
Typ.
Max.
Power Amplifier
Linear Gain
High Power Mode
dB
23
26.5
Low Power Mode
dB
12
16
VSWR In
Both Modes
1.5:1
Output Power
PIN = -3 dBm
High Power Mode
dBm
19
21.5
Low Power Mode
dBm
8
12
Second Harmonic
PIN = -3 dBm
High Power Mode
dBc
-25
Third Harmonic
dBc
-17
IDD (VDD1 + VDD2 + VDD PA)
mA
120
200
T/R Switch
Insertion Loss
dB
1.2
Isolation
dB
10
15
VSWR In/Out
1.5:1
Typical Electrical Specifications
Test Conditions: Frequency: 2.45 GHz, VDD = 5 V ±5%, VGG = - 5 V ±5%, TA= +25°C
q
Part Number
Description
AM55-0007
SSOP 24-Lead Plastic Package
AM55-0007TR
Forward Tape & Reel
*
AM55-0007RTR
Reverse Tape & Reel
*
AM55-0007SMB
Designer’s Kit
Ordering Information
* If specific reel size is required, consult factory for part
number assignment.
Dimensions are in inches o ver millimeters.