STV8203D データシートの表示（PDF） - STMicroelectronics

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STV8203D

MULTISTANDARD TV SOUND DEMODULATOR

STMicroelectronics 

STV8203

BLOCK DIAGRAM

SIF1

SIF2

ANALOG

SWITCH

AGC

Sub

IN

FM / NICAM

DEMODULATOR CORE *

I2C BUS

INTERFACE

SDA

SCL

XTAL

CRYSTAL

OSCILLATOR

DVDD5

AVCC

POWER SUPPLY

REGULATORS

STV8203

Digital

Analog

2

AUDIO MATRIX

2

2

PRE-SCALING

2

2

L1, R1

(L1 + R1)/2

2VRMS

2VRMS

1VRMS

SCART1 OUT L

SCART1 OUT R

SCART2 OUT L

SCART2 OUT R

MONO OUT

* See Demodulator Core Block Diagram

DEMODULATOR CORE BLOCK DIAGRAM

Sub

IN

ADC

BAND

PASS

FM

DISCRIMINATOR

NOISE *

ESTIMATION

LEVEL *

ESTIMATOR

SOUND STANDARD MANAGEMENT

IDENTIFICATION,

CHANNEL CONTROL, MUTE, ...

PILOT *

NOISE *

RECOGNITION ESTIMATION

BAND

PASS

FM

DISCRIMINATOR

NICAM QPSK

AND

DECODER

* Data also available throught I2C Bus

QPSK LOCK *

DETECTION

BIT ERROR

RATE *

ONE BIT

SIGMA

DELTA

DAC

Channel 1

I2C Bus

ONE BIT

SIGMA

DELTA

DAC

Channel 2

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