CXA1691AS SONY [Sony Corporation], CXA1691AS Datasheet - Page 2

• Manufacturer Part Number: CXA1691AS
• Description: FM/AM Radio
• Manufacturer: SONY [Sony Corporation]

Block Diagram
CXA1691AM
CXA1691AS
MUTE
GND
30
1
MUTE FM
GND
28
1
AF POWER AMP
GND
NC
29
DISCRI
2
OUT
AF POWER AMP
AF
27
2
DISCRI
OUT
FM
AF
28
3
V
NF
26
3
CC
V
NF
27
4
FILTER
CC
Ripple
VOL
25
4
FILTER
Ripple
VOL
26
5
OSC
AF
AM
IN
24
5
OSC
AM
AF
IN
25
6
DISCRIMINATOR
OUT
AM IF DET AGC
DET
AFC
23
6
DISCRIMINATOR
OUT
AM IF DET AGC
DET
AFC
24
7
FM
AGC
AFC
OSC
AM FE
FM
22
FM FE
7
—2—
FM
AGC
OSC
AFC
FM
AM FE
FM FE
23
8
AGC
AFC
OUT
Reg
21
8
AGC
OUT
AFC
Reg
22
9
TUNING METER
GND
FM
RF
IF
20
9
TUNING METER
GND
FM
RF
10
IF
21
METER
RF IN
AM
10
19
METER
RF IN
AM
11
20
NC
11
NC
18
NC
NC
12
19
RF IN
IF IN
FM IF
FM
FM
12
17
RF IN
IF IN
FM IF
FM
FM
13
18
IF IN
GND
AM
FE
16
13
IF IN
GND
AM
FE
14
17
SELECT
FE OUT
FM/AM
FM/AM
BAND
15
14
SELECT
FE OUT
FM/AM
FM/AM
BAND
16
15
CXA1691AM/AS