TDA9851T/V1 查看數據表（PDF） - Philips Electronics

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TDA9851T/V1

I2C-bus controlled economic BTSC stereo decoder

Philips Electronics 

Philips Semiconductors

I2C-bus controlled economic BTSC stereo

decoder

Product specification

TDA9851

Table 6 Function of the bits in Table 5

BITS

FUNCTION

STEREO

mode selection stereo or mono

GMU

mute control OUTL and OUTR

AVLON

AVL on/off

CCD

increased AVL decay current on/off

AT1 and AT2 attack time at AVL

Table 7 Mode setting

FUNCTION MODE

OUTL OUTR

Left

right

Mono

mono

Mono

mono

Mono

mono

READABLE BIT SETTING BIT

STP

STEREO

1 (stereo

1

received)

1 (stereo

0

received)

0 (no stereo

1

received)

0 (no stereo

0

received)

Table 9 AVLON bit setting

FUNCTION

Automatic volume control on

Automatic volume control off

DATA

1

0

Table 10 CCD bit setting

FUNCTION

Load current for normal AVL decay time

Increased load current

DATA

0

1

Table 11 AVL attack time

Ratt

(Ω)

420

730

1 200

2 100

DATA

AT1

AT2

0

0

1

0

0

1

1

1

Table 8 Mute setting

FUNCTION

Forced mute at OUTR and OUTL

No forced mute at OUTR and OUTL

DATA

GMU

1

0

1997 Nov 12

11

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