AM/FM TUNER + MPX
AM/FM TUNER + MPX
S1A2298A01
INTRODUCTION
The S1A2298A01 is a monolithic integrated circuit which consists of an FM IF...
Description
AM/FM TUNER + MPX
S1A2298A01
INTRODUCTION
The S1A2298A01 is a monolithic integrated circuit which consists of an FM IF AMP, FM QUAD DET, AM IF AMP, AM DET, MPX block and Counter output pin for a DTS (Digital Tuning System) set. It is designed for use in portable radio cassette recorders. 24−SDIP−300
FEATURES
AM/FM IF, 1 Chip for DTS Wide Operating Voltage: VCC = 1.8V − 7V Adjust free FM Quadrature Detector djust free MPX VCO
ORDERING INFORMATION
Device S1A2298A01-A0B0 Package 24−SDIP−300 Operating Temperature − 20°C − + 75°C
1
S1A2298A01
AM/FM TUNER + MPX
BLOCK DIAGRAM
FMIF IN 24
AM MIX 23
BYPASS 22
AM IF 21
FM QUAD 20
DET OUT 19
MPX IN 18
LPF1 17
LPF2 16
VCO 15
L-OUT 14
R-OUT 13
FM DET FM IF ECL AF PHA DET PIT PIL DET DET VOC DECODE
AM MIX
AM IF AM DET BF
AM/FM MO/ST ECL EVEL SW HYS
SSC
OSC
BF
AGC
SW
TU LED
ST LED
1 AMIF IN
2 IF SW
3 AM OSC
4 AMOSC OUT
5 VCC
6
7
8 IF REQ
9 IF CONUNT
10 TU LED
11 ST LED
12 GND
AM AGC LOWOUT IN
PIN CONFIGURATION
FMIF INPUT 24
AM BYPASS MIX 23 22
AM IF 21
FM QUAD 20
DET OUT
MPX LPF1 INPUT 18 17
LPF2 16
VCO L-OUT 15 14
ROUT 13
19
S1A2298A01
1 AMRF INPUT
2 IF SW
3
4
5
6
7
8
9
10
11 ST LED
12 GND
AM AMOSC VCC AGC LOWCUT OUTPUT
IF IF TU REQ COUNT LED
2
AM/FM TUNER + MPX
S1A2298A01
PIN FUNCTION
Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Symbol AM RF IF SW AM OSC AM OSC BF VCC AM LOW CUT AGC IF REQ IF COUNT TU LED ST LED GND R-OUT L-OUT VCO LP...
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