參數(shù)資料
型號： AP602-PCB2140
英文描述： High Dynamic Range 4W 28V HBT Amplifier
中文描述： 高動態(tài)范圍4瓦28V的異質(zhì)結(jié)雙極晶體管放大器
文件頁數(shù)： 9/11頁
文件大?。?/td> 850K
代理商： AP602-PCB2140
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 9 of 11 May 2007 ver 1
AP602
High Dynamic Range 4W 28V HBT Amplifier
2110-2170 MHz Application Note: Changing Icq Biasing Configurations
The AP602 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 80 mA as the quiescent current (I
CQ
).
This biasing level represents the best tradeoff in terms of linearity and efficiency. Lowering I
CQ
will improve upon the
efficiency of the device, but degraded linearity. Increasing I
CQ
has nominal improvement upon the linearity, but will degrade
the device’s efficiency. Measured data shown in the plots below represents the AP602 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)
(ohms)
(V)
(V)
20
6.00k
5
2.53
40
2.76k
5
2.61
60
1.80k
5
2.67
80
1.33k
5
2.73
100
1.05k
5
2.79
120
859
5
2.84
140
723
5
2.89
160
621
5
2.94
R2
V
PD
PIN_V
PD
Thermal Rise vs. Output Power vs. Icq
Vcc = 28V
0
20
40
60
80
17
19
21
23
25
27
29
Output Power (dBm)
T
C
20 mA
40 mA
60 mA
80 mA
100 mA
120 mA
140 mA
160 mA
See note 6
C22
0.5 pF
See note 5
See note 4
See note 3
V
B
V
P
G
V
C
C7
100pF
W = .030”
L = .980”
ACLR1 vs. Output Power vs. Icq
WCDMA, Vcc = 28V, 2140 MHz, 25
C
-65
-60
-55
-50
-45
-40
-35
19
21
23
25
27
29
Average Output Power (dBm)
A
20 mA
100 mA
40 mA
120 mA
60 mA
140 mA
80 mA
160 mA
Icc vs. Output Power vs. Icq
WCDMA, Vcc = 28V, 2140 MHz, 25
C
0
50
100
150
200
19
21
23
25
27
29
Average Output Power (dBm)
C
20 mA
100 mA
40 mA
120 mA
60 mA
140 mA
80 mA
160 mA
Efficiency vs. Output Power vs. Icq
WCDMA, Vcc = 28V, 2140 MHz, 25
C
0
5
10
15
20
25
30
19
21
23
25
27
29
Average Output Power (dBm)
C
20 mA
60 mA
100 mA
140 mA
40 mA
80 mA
120 mA
160 mA
Gain vs. Output Power vs. Icq
CW tone, Vcc = 28V, 2140 MHz, 25
C
11
12
13
14
15
16
20
24
28
32
36
Output Power (dBm)
G
20 mA
100 mA
40 mA
120 mA
60 mA
140 mA
80 mA
160 mA
Output Power vs. Input Power vs. Icq
CW tone, Vcc = 28V, 2140 MHz, 25
C
20
24
28
32
36
8
12
16
20
24
Input Power (dBm)
O
20 mA
40 mA
60 mA
80 mA
100 mA
120 mA
140 mA
160 mA
Efficiency vs. Output Power vs. Icq
CW tone, Vcc = 28V, 2140 MHz, 25
C
0
10
20
30
40
50
20
24
28
32
36
Output Power (dBm)
C
20 mA
40 mA
60 mA
80 mA
100 mA
120 mA
140 mA
160 mA
OIP3 vs. Output Power vs. Icq
CW 2-tone signal, 2140 MHz,
f = 1 MHz, Vcc = 28V, 25
C
30
35
40
45
50
55
24
26
28
30
32
34
Output Power, PEP (dBm)
O
20 mA
60 mA
100 mA
140 mA
40 mA
80 mA
120 mA
160 mA
IMD3 vs. Output Power vs. Icq
CW 2-tone signal, 2140 MHz,
f = 1 MHz, Vcc = 28V, 25
C
-80
-70
-60
-50
-40
-30
24
26
28
30
32
34
Output Power, PEP (dBm)
I
20 mA
40 mA
60 mA
80 mA
100 mA
120 mA
140 mA
160 mA
IMD5 vs. Output Power vs. Icq
CW 2-tone signal, 2140 MHz,
f = 1 MHz, Vcc = 28V, 25
C
-80
-70
-60
-50
-40
-30
24
26
28
30
32
34
Output Power, PEP (dBm)
I
20 mA
40 mA
60 mA
80 mA
100 mA
120 mA
140 mA
160 mA
1000 pF
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