NJM2591 Datasheet, PDF (8/13 Pages) New Japan Radio – 100MHz INPUT 450kHz FM IF DEMODULATOR IC FOR VOICE

NJM2591
Circuit Side View
LOCAL
IN
R9
R8
IF
IN
V+
MIX IN
V+
R7
C7
C1
CF
NJM
C2
R1
2591
C9
R4
CD
R
R5
NOISE REC
NOISE DET
RSSI
Ground Side View
NOISE
IN
AF OUT
C10
C11
Note
1. External Components
C1, C1, C6, C8=1000pF C2, C7, C5=0.1uF C3, C4=220pF C9=33pF
R1=150kΩ R2=5.6kΩ R3=10kΩ R4=2.7kΩ R5, R7=51Ω R6=100kΩ R9 =OΩ R8=open
C10, C11=10uF
CF=CFWCA450KGFA-R0(Murata)
CD=CDBCB450KCAY70-R0(Murata)
2. There are two terminals for V+. For proper operation, both of these terminals are necessary for power
supply.
-8-
Ver.2004-08-25