STV82X8 datasheet(106/157 Pages) STMICROELECTRONICS

Part #	STV82X8

Description	Digital Audio Decoder / Processor for BTSC Television/Video Recorders

PDF	157 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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106 / 157 page

STV82x8

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SVC_HP_CONTROL

Smart Volume Control for HP

SVC_HP_TIME_TH

Smart Volume Control Parameters for HP

SVC_LS_GAIN[5:0]

000000

Set “make-up” gain applied at SVC LS output:

000000:

+0 dB

000001:

+0.5 dB

...

101110:

+23 dB

101111:

+23.5 dB

110000:

+24 dB

Address: C1h

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

0000

SVC_HP_AMP SVC_HP_ON

Bit Name

Reset

Function

Bits[7:2]

0000 00

Reserved.

SVC_HP_AMP

0: 0 dB amplification in auto-mode

1: +6 dB amplification in auto-mode

SVC_HP_ON

0: Manual mode (simple prescaler)

1: Automatic mode

Address: C2h

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

SVC_HP_TIME[2:0]

SVC_HP_THRESHOLD[4:0]

Bit Name

Reset

Function

SVC_HP_TIME[2:0]

100

Time Constant for Amplification (6-dB gain step) in Automatic mode:

000:

30 ms

100:

16 s

001:

200 ms

101:

32 s

010:

500 ms

110:

64 s

011:

1 s

111:

128 s

SVC_HP_THRESH

OLD[4:0]

11000

See tables 8 and 9

Bit Name

Reset

Function

STV82X8 Datasheet(PDF) 106 Page - STMicroelectronics

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