RF9957 Datasheet, PDF (5/10 Pages) RF Micro Devices – CDMA/FM RECEIVE AGC AND DEMODULATOR

RF9957
Pin Function Description
Interface Schematic
24
PD
Power Down Control. When logic “high” (≥V_CC-0.3V), all circuits are
operating; when logic “low” (≤0.5V), all circuits are turned off. The input
impedance of this pin is 10kΩ.
10 kΩ
PD
Pin Out
VCC1 1
24 PD
VCC2 2
23 GC
VCC3 3
22 I OUT-
CDMA IN+ 4
21 I OUT+
CDMA IN- 5
20 GND
GND 6
19 FL+
7
GND 7
18 FL-
FM IN+ 8
17 GND
FM IN- 9
16 Q OUT+
BG OUT 10
15 Q OUT-
DEC 11
14 IN SEL
LO- 12
13 LO+
Rev C11 010622
7-31