The Communications Edge TM
AH103A
High Gain, High Linearity ½-Watt Amplifier
Product Information
Application Circuit: 1900 – 2000 MHz (AH103AG-PCB1900)
Typical RF Performance at 25°C
Frequency
1900 MHz
25.4 dB
19 dB
Gain
Input Return Loss
Output Return Loss
Output IP3
11 dB
+45 dBm
+26.7 dBm
Output P1dB
IS-95A Ch. Power
+20.5 dBm
@ -45 dBc ACPR
Noise Figure
3 dB
+9 V
Supply Voltage
Supply Current
275 mA
Notes:
1.
A voltage regulator is used in this circuit (U2) to drop the +9 V to a +5 V usable supply for the first internal amplifier. It is permissible to remove the
regulator and operate the 1st amplifier stage directly off of +5 V supply onto Test Point 1 (TP1). The use of a +5 V supply on the 1st amplifier stage
requires a dropping resistor of 6.8 Ω. A +4.5 V supply can also be used to bypass the 6.8 Ω and can be applied to Test Point 2 (TP2).
S-Parameters
Wideband S-Parameters
27
26
25
24
23
22
0
30
20
10
0
S21
S11
S22
-5
-10
-15
-20
-25
-10
-20
-30
S21
S11
S22
1800
1850
1900
1950
2000
0
500 1000 1500 2000 2500 3000
Frequency (MHz)
Frequency (MHz)
Noise Figure
Output IP3
ACPR vs. Channel Power
IS-95, 9 Ch. Fwd, ±885 kHz offset, 30 kHz Meas BW, 1900 MHz
5
4
3
2
1
0
48
46
44
42
40
38
-40
-50
-60
-70
-80
1800
1850
1900
1950
2000
6
8
10
12
14
16
14
16
18
20
22
Frequency (MHz)
Output Power per tone (dBm)
Output Channel Power (dBm)
Specifications and information are subject to change without notice
Page 4 of 6 March 2005
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