AM55-0004TR Просмотр технического описания (PDF) - Tyco Electronics
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AM55-0004TR Datasheet PDF : 8 Pages
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250 mW Linear Power Amplifier and T/R Switch
AM55-0004
Power Amplifier Spectral Response Under
Modulation Drive
(π/4 DQPSK, ␣ = 0.5, 384 kB/sec, 9-bit PN code)
SPECTRAL RESPONSE UNDER MODULATION1
(VD = 3.0 V, POUT = 20.5 dBm)
0
-20
-40
-60
-80
1899.0
1899.4
1899.8
1900.2
FREQUENCY (MHz)
1900.6
1901.0
SPECTRAL RESPONSE UNDER MODULATION1
(VD = 4.8 V, POUT = 23.4 dBm)
0
-10
-20
-30
-40
-50
-60
-70 1899.0
1899.4
1899.8
1900.2
FREQUENCY (MHz)
1900.6
1901.0
Output Power Under Modulation2
VD (volts)
3
3.6
4
4.8
6
POUT (dBm)
20.5
21.4
22.2
23.4
23.7
1. Spectral output is tested under the following conditions:
Modulation scheme is π/4 DQPSK with a bit transfer rate
of 384 kB/sec and a root Nyquist filter with ␣ = 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
dBc at a 600-kHz offset.
Transmit/Receive Switch Performance
INSERTION LOSS
0.0
-0.5
-15°C
+25°C
-1.0
+70°C
-1.5
-2.0
1.50
1.75
2.00
2.25
2.50
FREQUENCY (GHz)
ISOLATION (@ -15°C, +25°C and +70°C)
-20
-25
-30
-35
-40
1.50
1.75
2.00
2.25
2.50
FREQUENCY (GHz)
RETURN LOSS (@ -15°C, +25°C and +70°C)
0
-5
-10
In
-15
Out
-20
-25
-30
-35
1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5
FREQUENCY (GHz)
LINEARITY (Tx MODE)
33
2.5
31
1.5
29
0.5
27
-0.5
25
-1.5
23
-2.5
25 26 27 28 29 30 31 32 33 34
POWER IN (dBm)
Specifications Subject to Change Without Notice
V 2.00
M/A-COM Inc.
s
1011 Pawtucket Boulevard, Lowell, MA 01853 USA
s
Telephone: 800-366-2266
5
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