STV8277DSXT datasheet(4/149 Pages) STMICROELECTRONICS

Part #	STV8277DSXT

Description	Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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STV82x7

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4.15

Beeper ................................................................................................................................ 37

Chapter 5

Analog Audio Matrix (In / Out) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Chapter 6

I²S Interface (In / Out) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

6.1

I²S Inputs ............................................................................................................................ 40

6.2

I²S Output ........................................................................................................................... 41

Chapter 7

S/PDIF Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Chapter 8

Power Supply Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

8.1

Standby Mode (Loop-through mode) ................................................................................. 43

Chapter 9

Additional Controls and Flag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

9.1

Headphone Detection ........................................................................................................ 44

9.2

IRQ Generation .................................................................................................................. 44

9.3

I²C Bus Expander ............................................................................................................... 44

Chapter 10

STV82x7 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Chapter 11

I²C Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

11.1

I²C Address and Protocol ...................................................................................................46

11.2

Start-up and Configuration Change Procedure .................................................................. 47

Chapter 12

Register List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

12.1

I²C Register Map ................................................................................................................ 49

12.2

STV82x7 General Control Registers .................................................................................. 55

12.3

Clocking 1 .......................................................................................................................... 56

12.4

Demodulator ....................................................................................................................... 59

12.5

Demodulator Channel 1 ..................................................................................................... 62

12.6

Demodulator Channel 2 ..................................................................................................... 66

12.7

NICAM Registers ............................................................................................................... 71

12.8

Stereo Mode ....................................................................................................................... 73

12.9

Analog Control ................................................................................................................... 74

12.10

Clocking 2 .......................................................................................................................... 76

12.11

DSP Control ....................................................................................................................... 77

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