參數(shù)資料
型號： AP601-F
元件分類： 放大器
英文描述： 800 MHz - 2000 MHz RF/MICROWAVE WIDE BAND MEDIUM POWER AMPLIFIER
封裝： 5 X 6 MM, ROHS COMPLIANT, SMT, DFN-14
文件頁數(shù)： 9/10頁
文件大?。?/td> 767K
代理商： AP601-F
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 8 of 10 May 2007 ver 1
AP601
High Dynamic Range 1.8W 28V HBT Amplifier
2110-2170 MHz Application Note: Changing Icq Biasing Configurations
The AP601 can be configured to operate with lower bias current by varying the bias-adjust resistor – R2. The recommended
circuit configurations shown previously in this datasheet have the device operating with a 40 mA as the quiescent current (ICQ).
This biasing level represents the best tradeoff in terms of linearity and efficiency. Lowering ICQ will improve upon the
efficiency of the device, but degraded linearity. Increasing ICQ has nominal improvement upon the linearity, but will degrade
the device’s efficiency. Measured data shown in the plots below represents the AP601 measured and configured for 2.14 GHz
applications. It is expected that variation of the bias current for other frequency applications will produce similar performance
results.
Icq
(mA)
R2
()
VPD
(V)
PIN_VPD
(V)
10
12k
5
2.50
20
5.44k
5
2.58
30
3.48k
5
2.63
40
2.61k
5
2.68
50
2.06k
5
2.72
60
1.67k
5
2.77
70
1.42k
5
2.81
80
1.22k
5
2.85
Thermal Rise vs. Output Power vs. Icq
Vcc = 28V
0
20
40
60
80
14
16
18
20
22
24
26
Output Power (dBm)
The
rma
lRi
se
(
C)
10 mA
20 mA
30 mA
40 mA
50 mA
60 mA
70 mA
80 mA
C19
1.8pF
C5
2.4pF
C22
1.2pF
V
BI
AS
V
PD
GND
V
CC
C7
1000pF
3,3pF
ACLR1 vs. Output Power vs. Icq
WCDMA, Vcc = 28V, 2140 MHz, 25 C
-60
-50
-40
-30
18
20
22
24
26
Average Output Power (dBm)
ACLR
1
(d
Bc)
10 mA
20 mA
30 mA
40 mA
50 mA
60 mA
70 mA
80 mA
Efficiency vs. Output Power vs. Icq
WCDMA, Vcc = 28V, 2140 MHz, 25 C
0
20
40
60
80
100
120
18
20
22
24
26
Average Output Power (dBm)
Col
lector
Current
(mA)
10 mA
20 mA
30 mA
40 mA
50 mA
60 mA
70 mA
80 mA
Efficiency vs. Output Power vs. Icq
WCDMA, Vcc = 28V, 2140 MHz, 25 C
0
5
10
15
20
25
30
18
20
22
24
26
Average Output Power (dBm)
Coll
ector
E
ffici
ency
(%
)
10 mA
20 mA
30 mA
40 mA
50 mA
60 mA
70 mA
80 mA
Gain vs. Output Power vs. Icq
CW tone, Vcc = 28V, 2140 MHz, 25 C
10
11
12
13
14
15
18
22
26
30
34
Output Power (dBm)
Ga
in
(dB
)
10 mA
20 mA
30 mA
40 mA
50 mA
60 mA
70 mA
80 mA
Output Power vs. Input Power vs. Icq
CW tone, Vcc = 28V, 2140 MHz, 25 C
18
22
26
30
34
4
8
12
16
20
Input Power (dBm)
Outpu
tPo
w
e
r(d
Bm)
10 mA
20 mA
30 mA
40 mA
50 mA
60 mA
70 mA
80 mA
Efficiency vs. Output Power vs. Icq
CW tone, Vcc = 28V, 2140 MHz, 25 C
0
10
20
30
40
50
60
18
22
26
30
34
Output Power (dBm)
Coll
ector
E
ffici
ency
(%
)
10 mA
20 mA
30 mA
40 mA
50 mA
60 mA
70 mA
80 mA
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