CXA1619AM/AS
Block Diagram
CXA1619AM
FM/AM
AF
GND OUT VCC FILTER IN
28 27 26 25 24
Ripple AF
DET AFC AFC
OUT AGC AGC GND METER NC IF IN IF IN SELECT
IF
FM
AM BAND
23
22
21
20
19
18
17
16
15
AM IF DET AGC
AM FE
TUNING METER
AF POWER AMP
FM IF
FM
DISCRIMINATOR
FM FE
10
11
12
13
14
1
2
3
4
5
6
7
8
9
GND FM
DISCRI
NF VOL AM AFC FM Reg FM
AM
NC
FM
FE FM/AM
OSC
OSC OUT RF RF IN
RF IN GND FE OUT
CXA1619AS
FM/AM
AM BAND
OUT AGC AGC GND METER NC IF IN IF IN SELECT
AF
Ripple AF
DET AFC AFC
IF
21
FM
GND GND OUT VCC FILTER IN
28
27
26
25
24
23
22
20
19
18
17
16
30
29
AM IF DET AGC
AM FE
TUNING METER
AF POWER AMP
FM IF
FM
DISCRIMINATOR
FM FE
15
14
FE FM/AM
1
GND
2
3
FM
4
5
6
7
8
9
10
11
12
13
NF VOL AM AFC FM Reg FM
AM
NC
FM
GND
DISCRI
OSC
OSC OUT RF RF IN
RF IN GND FE OUT
—2—