STV8203 ST Microelectronics, STV8203 Datasheet - Page 4

• Manufacturer Part Number: STV8203
• Description: MULTISTANDARD TV SOUND DEMODULATOR
• Manufacturer: ST Microelectronics

STV8203
BLOCK DIAGRAM
DEMODULATOR CORE BLOCK DIAGRAM
4/31
Sub
IN
XTAL
* See Demodulator Core Block Diagram
* Data also available throught I
DV
ADC
AV
SIF1
SIF2
DD5
CC
STV8203
BAND
PASS
BAND
PASS
POWER SUPPLY
ESTIMATOR
OSCILLATOR
REGULATORS
LEVEL *
CRYSTAL
ANALOG
SWITCH
2
C Bus
DISCRIMINATOR
DISCRIMINATOR
NICAM QPSK
DECODER
AGC
AND
FM
FM
RECOGNITION
SOUND STANDARD MANAGEMENT
Digital
Analog
Sub
CHANNEL CONTROL, MUTE, ...
PILOT *
IN
IDENTIFICATION,
DEMODULATOR CORE *
QPSK LOCK *
DETECTION
AUDIO MATRIX
PRE-SCALING
ESTIMATION
ESTIMATION
FM / NICAM
2
NOISE *
NOISE *
2
2
BIT ERROR
RATE *
(L1 + R1)/2
L1, R1
2
2
INTERFACE
I
2
C BUS
2V
2V
1V
RMS
RMS
RMS
I
2
C Bus
ONE BIT
ONE BIT
SIGMA
DELTA
SIGMA
DELTA
DAC
DAC
SDA
SCL
SCART1 OUT L
SCART1 OUT R
SCART2 OUT L
SCART2 OUT R
MONO OUT
Channel 1
Channel 2