參數(shù)資料
型號: U2797B-AFS
英文描述: 1000-MHz Quadrature Modulator
中文描述: 1000 - MHz的正交調(diào)制器
文件頁數(shù): 9/13頁
文件大?。?/td> 255K
代理商: U2797B-AFS
TELEFUNKEN Semiconductors
U2797B
Rev. A1: 06.09.1995
9 (13)
Application circuit
Bias network for ac coupled baseband inputs (V
BA
, V
BB
).
R1 = 2.5 k , R2
10 k for
35 dB LO suppression which is in reference to < 2 mV input offset.
Duty cycle
regenerator
Frequency
doubler
90 control
loop
M
Power
down
1
8
5,6
7
13
V
S
S
4
2, 3, 15, 16, 17, 18
GND
10
14
19
20
11
12
9
94 8184 e
BB
Ai
BB
Ai
LO
i
BB
BB
Bi
Bi
R
1
V
Ref
PD
RF
o
R
2
0
°
90
°
PD
Phase adj.
PCB layout
U2797B-FS (SSO 20)
94 8230 e
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