AP501
The Communications Edge
TM
Product Information
PCS-band 4W HBT Amplifier Module
Performance Graphs – Class AB Configuration (AP501-PCB)
The AP501-PCB and AP501 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.
+12V
GND
+12V
10μF
DNP
+5V
DNP
0Ω
0Ω
DNP
100pF
.01μF
DNP
RF IN
0Ω
DNP
DNP
6
.01μF
DNP
100pF
RF OUT
0Ω
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:
a. Connect RF In and Out
b. Connect the voltages and ground pins as shown in the circuit.
c. Apply the RF signal
d. Power down with the reverse sequence
5
4
3
2
1
DNP
DNP
Narrowband S-Parameters
+25 °C, Icq=850mA
PAE / Icc vs. Output Power
0
-5
S 1 1 , S 2 2 (d B )
Gain / Output Power vs. Input Power
25
20
P o u t (d B m )
15
10
5
0
P A E (% )
36
34
32
30
28
26
-6
-4
-2
0
2
4
6
Input Power (dBm)
ACLR vs. Channel Power
+25°C, 3GPP wCDMA, 1FA, 1+32 DPCH, ±5 MHz offset, 1960 MHz, Icq=850mA
33
32
S 2 1 (d B )
31
30
29
28
27
1930
1950
1970
1000
950
Ic c (m A )
900
850
800
750
24
1960 MHz, +25 °C, Icq=850mA
1960 MHz, +25 °C, Icq=850mA
Icc
PAE
32.5
32
31.5
31
Pout
Gain
30.5
30
G a in (d B )
28
S21
S11
S22
-10
-15
-20
-25
-30
1990
26
28
30
32
34
Frequency (MHz)
Output Power (dBm)
ACPR vs. Channel Power
IS-95A, 9 Channels forward, 1FA, 1960 MHz, Icq=850mA
Wideband S-Parameters
+25 °C, Icq=850mA
40
M a g n itu d e (d B )
20
0
-20
-40
0
A C P R (d B c )
A C L R (d B c )
S21
S11
S22
-50
-60
-70
-80
-90
±885 kHz
±1.25 MHz
-40
-40 C
-50
+25 C
+85 C
-60
-70
22
23
24
25
26
27
28
18
20
22
24
26
Output Channel Power (dBm)
Output Channel Power (dBm)
Specifications and information are subject to change without notice
500
1000
1500
2000
2500
3000
Frequency (MHz)
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
WJCI [ WJ COMMUNICATION. INC. ]
