AN7233SH Datasheet, PDF (1/3 Pages) Panasonic Semiconductor – FM/AM Tuner for 1.5V Headphone Stereo

ICs for FM/AM Tuner
AN7233SH
FM/AM Tuner for 1.5V Headphone Stereo
s Overview
The AN7233SH is an IC for tuner of 1.5V headphone
stereo. It incorporates AM tuner + FM IF + FM detector +
FM MPX and has been provided with the station detec-
tion function and IF count output function required to sup-
port DTS, and the AM IF output function required to sup-
port AM stereo. It is included in the 28-lead SSOP pack-
age with 0.5mm pitch.
s Features
• Low voltage operation : V_CC=1.0V or more
• AM tuner/FM IF + FM detection + FM MPX : one chip
• DTS supported
• AM stereo support possible
• Adjustable sensitivity for station detection
• Small package
7.80±0.20
28
15
Unit : mm
0 ~10˚
0.5±0.20
1
14
(0.65)
+ 0.10
0.2– 0.05
0.50
SEATING PLANE
SEATING PLANE
28-lead SSOP package (SSOP028-P-0300)
s Block Diagram
28
27
26
25
24
23
22
21
20
19
18
17
16 15
AM
Osc
ST Ind.
VCO
LPF
MPX
SW
AM
Mix.
Freq.
Divider
PC
AM Det.
AGC
AM AF
Buffer
AM
RF
1
2
3
IF
4
5
LEVEL
Det.
SD
FM
Det.
6
7
8
9
10
11
12
13
14
VCC
GND