CXA1691BM/BS
Standard Circuit Design Data
Voltage (V)
(The pin numbers in the parenthesis are for CXA1691BS.)
No.
Symbol
VCC=3 V VCC=6 V
FM AM FM AM
Equivalent circuit
Description
1
MUTE
0
0
0
0
(1, 2)
2
1k
2 (3)
3 (4)
FM DISCRI
2.18 2.70 4.88 5.43
Phase-shift circuit Connect
ceramic discriminator
1.2k
VCC
NF
1.5 1.5 3.0 3.0
1.5 1.5 3.0 3.0
Negative feedback pin
×100
27
×100
GND
27 (28) AF OUT
Power amplifier output pin
3
4
20k
80k
Connect variable resistor for
electronic volume control.
4 (5)
VOL CONT
1.25 1.25 1.25 1.25
GND
5
3.6k
5 (6)
AM OSC
1.25 1.25 1.25 1.25
AM local oscillation circuit
6 (7)
8 (9)
AFC
1.25
1.25
AFC variable capacitor pin
Regulator pin 1.25 V (Typ.)
8
1.25V
(REG)
6
REG OUT
1.25 1.25 1.25 1.25
7
7 (8)
FM OSC
1.25 1.25 1.25 1.25
FM local oscillation circuit
—3—
SONY [ SONY CORPORATION ]
