Preliminary Specifications
250 mW Linear Power Amplifier and T/R Switch
1.8 - 2.0 GHz
AM55-0004
Features
SSOP-28
●
Operates Over Full PCN/PCS/PHS Bands
Operates Over +3 V to +5 V Supply Voltage
+.0037
-.0041
+0,09
-0,1
.3900
9,91
●
+.0025
.0275
0,7
-.0025
●
+24 dBm P
Typical at PA Out
1dB
+0,06
-0,06
●
●
●
35% PAE @ P
for Linear Operation
1dB
+.0034
On-Chip T/R Switch, Linear Operation to +30 dBm
Low Cost SSOP-28 Plastic Package
.1540
.236 ±.008
5,99±0,2
-.0043
+0,09
-0,11
3,91
PIN 1
Description
+.0018
-.0005
+0,05
-0,01
.057 ±.003
1,45 ±0,08
.015 (0,38) X 45°
.0080
0,2
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.
+.004
-.001
+0,1
-0,03
.010
0-8°
.007 ±.003
0,18 ±0,08
.025
0,64
0,25
+.022
-.013
.028
0,71
.004 (0,10)
+0,56
-0,33
Dimensions are inches over millimeters.
The power amplifier/switch is fully monolithic and requires
only one output capacitor for power match. The T/R switch
achieves good insertion loss and isolation without degrading
the overall linearity.
Ordering Information
The AM55-0004 is ideally suited for final stage power
amplification in linear TDD systems. The integrated switch is
convenient for duplexing. The AM55-0004 can also be used
as a driver stage for high power systems. Typical applications
include Japanese PHS systems or PCN/PCS transmit chains.
Part Number
Description
AM55-0004
SSOP 28-Lead Plastic Package
Forward Tape & Reel*
Reverse Tape & Reel*
Designer’s Kit
AM55-0004TR
AM55-0004RTR
AM55-0004SMB
M/A-COM’s AM55-0004 is fabricated using a mature
0.5-micron gate length GaAs process. The process features
full passivation for increased performance and reliability.
If specific reel size is required, consult factory for part
number assignment.
*
Typical Electrical Specifications
Test conditions: Frequency: 1.9 GHz, V
= V
= 4.8 V ±10%, V adjusted for 30 mA quiescent bias on V
,
DD1
DD2
G1
DD1
V
adjusted for 65 mA quiescent bias on V , TA= +25°C
G2
DD2
Parameter
Units
Min.
Typ.
Max.
Power Amplifier
Linear Gain
dB
dBm
mA
22
22.5
75
24
24
Power Output @ P1dB at PA OUT port
Current From Positive Supply @ P1dB
Input VSWR
175
2.0:1
275
1.0
T/R Switch
Insertion Loss
dB
dB
0.6
1.5:1
20
Input Match
Isolation
15
Specifications Subject to Change Without Notice
V2.00
M/A-COM Inc.
■
1011 Pawtucket Boulevard, Lowell, MA 01853 USA
■
Telephone: 800-366-2266
1