cxa1691bs Sony Electronics, cxa1691bs Datasheet - Page 3

• Manufacturer Part Number: cxa1691bs
• Description: Fm/am Radio
• Manufacturer: Sony Electronics

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