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CXA1691AM View Datasheet(PDF) - Sony Semiconductor

Part NameDescriptionManufacturer
CXA1691AM FM/AM Radio Sony
Sony Semiconductor Sony
CXA1691AM Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
CXA1691AM/AS
Standard Circuit Design Data
No.
Symbol
1
MUTE
(1, 2)
Voltage (V)
VCC=3 V VCC=6 V
FM AM FM AM
0000
2 (3) FM DISCRI 2.18 2.70 4.88 5.43
(The pin numbers in the parenthesis are for CXA1691AS.)
Equivalent circuit
Description
2
1k
1.2k
Phase-shift circuit Connect
ceramic discriminator
3 (4) NF
1.5 1.5 3.0 3.0
27 (28) AF OUT
1.5 1.5 3.0 3.0
4 (5) VOL CONT 1.25 1.25 1.25 1.25
5 (6) AM OSC
1.25 1.25 1.25 1.25
VCC
×100
Negative feedback pin
27
×100
GND
Power amplifier output pin
3
4
20k
80k
5
3.6k
Connect variable resistor for
electronic volume control.
GND
AM local oscillation circuit
6 (7) AFC
8 (9) REG OUT
1.25 1.25
1.25 1.25 1.25 1.25 6
7
7 (8) FM OSC
1.25 1.25 1.25 1.25
AFC variable capacitor pin
8
1.25V
(REG) Regulator pin 1.25 V (Typ.)
FM local oscillation circuit
—3—
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