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AP504 Datasheet, PDF (2/5 Pages) List of Unclassifed Manufacturers – DCS-band 4W HBT Amplifier Module
AP504
DCS-band 4W HBT Amplifier Module
The Communications Edge TM
Product Information
Performance Graphs – Class AB Configuration (AP504-PCB)
The AP504-PCB and AP504 module is configured for Class AB by default. The resistor – R7 – which sets the current draw for
the amplifier is set at 0 Ω in this configuration. Increasing that value will decrease the quiescent and operating current of the
amplifier module, as described on the next page.
DNP
10μF
0Ω
0Ω
RF IN
DNP
DNP
0Ω
DNP
DNP
100pF
.01μF
DNP
DNP
6 54 32 1
.01μF
100pF
0Ω
DNP
RF OUT
DNP
Notes:
1. Please note that for reliable operation, the evaluation board will have
to be mounted to a much larger heat sink during operation and in
laboratory environments to dissipate the power consumed by the
device. The use of a convection fan is also recommended in
laboratory environments. Details of the mounting holes used in the
WJ heatsink are given on the last page of this datasheet.
2. The area around the module underneath the PCB should not contain
any soldermask in order to maintain good RF grounding.
3. For proper and safe operation in the laboratory, the power-on
sequencing should be followed:
1. Connect RF In and Out
2. Connect the voltages and ground pins as shown in the circuit.
3. Apply the RF signal
4. Power down with the reverse sequence
Gain
+25 °C, 12Vcc, Icq=850mA
35
34
33
32
31
30
1700 1720 1740 1760 1780 1800
Frequency (MHz)
ACPR vs. Output Power vs. Temp
CDMA2000 SR1, 7FA , fc=1765 MHz, Δf=±885 kHz, Vcc=12V, Icq=850mA
-50
-40 °C
+25 °C
-55 +85 °C
-60
Return Loss
+25 °C, Vcc=12V, Icq=850mA
0
-5
-10
-15
-20
-25
1700
S11
S22
1720 1740 1760 1780 1800
Frequency (MHz)
ACPR vs. Output Power vs. Temp
CDMA2000 SR1, 7FA , fc=1765 MHz, Δf=±1.98 MHz, Vcc=12V, Icq=850mA
-50
-40 °C
+25 °C
-55 +85 °C
-60
Gain vs. Temp
1765 MHz, Vcc=12V, Icq=850mA
36
34
32
30
28
26
-40 -20 0 20 40 60 80
Temperature (°C)
ACPR vs. Frequency vs. Temp
CDMA2000 SR1, 7FA , Δf=±885 kHz, 25 dBm Pout, Vcc=12V, Icq=850mA
-50
-40 °C
+25 °C
-55 +85 °C
-60
-65
-65
-65
-70
-70
-70
18
20
22
24
26
28
18
20
22
24
26
28
1750
1760
1770
1780
Total Output Power (dBm)
Total Output Power (dBm)
Frequency (MHz)
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com
Page 2 of 5 February 2006