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參數(shù)資料
| 型號(hào)： | RF2607 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 衰減器 |
| 英文描述： | CDMA/FM RECEIVE AGC AMPLIFIER |
| 中文描述： | 12 MHz - 285 MHz RF/MICROWAVE WIDE BAND HIGH POWER AMPLIFIER |
| 封裝： | PLASTIC, SSOP-16 |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 110K |
| 代理商： | RF2607 |
10-4
RF2607
Rev B2 010720
10
I
Application S chematic
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NC
GAIN
CONTROL
IN
SEL.
10 nF
R1:
1 k
CDMA-
FM IN
CDMA+
IF IN
SELECT
4.7 k
GC
10 nF
L1
L1
V
CC
C2
OUT+
OUT-
V
CC
R2:
500
C1
C1
C2
Measurement
Reference Plane
Z
LOAD
=500
FM IF Filter
CDMA IF Filter
Z
S
=500
Z
IN, EFF
=500
Z
IN
=1 k
Z
S
=850
Z
S, EFF
=333
Z
IN
=850
Measurement
Reference Plane
Z
LOAD,EFF
=250
Z
OUT
=500
R1 sets the CDMA balanced input impedance. The effective input impedance is then 500
.
R2 sets the balanced output impedance to 500
. L1 and C2 serve dual purposes. L1
serves as an output bias choke, and C2 serves as a series DC block. In addition, the values
of L1 and C2 may be chosen to form an impedance matching network of the load
impedance is not 500
. Otherwise, the values of L1 and C1 are chosen to form a parallel-
resonant tank circuit at the IF when the load impedance is 500
.
10 nF
10 nF
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