參數(shù)資料
型號(hào): RF9957PCBA
廠(chǎng)商: RF Micro Devices, Inc.
英文描述: CDMA/FM RECEIVE AGC AND DEMODULATOR
中文描述: 碼分多址/調(diào)頻接收AGC和解調(diào)器
文件頁(yè)數(shù): 5/10頁(yè)
文件大小: 169K
代理商: RF9957PCBA
7-31
RF9957
Rev C11 010622
7
Q
D
Pin Out
Pin
24
Function
PD
Description
Power Down Control. When logic “high” (
V
CC
-0.3V), all circuits are
operating; when logic “l(fā)ow” (
0.5V), all circuits are turned off. The input
impedance of this pin is 10k
.
Interface Schematic
10 k
PD
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
VCC1
VCC2
VCC3
CDMA IN+
CDMA IN-
GND
GND
FM IN+
FM IN-
BG OUT
DEC
LO-
PD
GC
I OUT-
I OUT+
GND
FL+
FL-
GND
Q OUT+
Q OUT-
IN SEL
LO+
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