TDA8846 Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Fabricante

TDA8846

I2C-bus controlled PAL/NTSC/SECAM TV processors

Philips Electronics 

Philips Semiconductors

I2C-bus controlled PAL/NTSC/SECAM TV

processors

Tentative Device Specification

TDA884X/5X-N2 series

Table 35 AFC window

AFW

0

1

normal

enlarged

AFC WINDOW

Table 36 IF sensitivity

IFS

0 normal

1 reduced

IF SENSITIVITY

Table 37 Modulation standard

MOD

0

1

negative

positive

MODULATION

Table 38 Video mute

VSW

0

1

STATE

normal operation

IF-video signal switched off

Table 39 Sound mute

SM

STATE

0 normal operation

1 sound mute active

Table 40 Fixed audio volume

FAV

MODE

0 normal volume control

1 audio output level fixed

Table 41 PLL demodulator frequency adjust

IFA IFB IFC

IF FREQUENCY

0

0

0 58.75 MHz

0

0

1 45.75 MHz

0

1

0 38.90 MHz

0

1

1 38.00 MHz

1

0

0 33.40 MHz

1

1

0 33.90 MHz

Table 42 Switch-off in vertical overscan

OSO

0

1

MODE

Switch-off undefined

Switch-off in vertical overscan

Table 43 Vertical scan disable

VSD

0

1

MODE

Vertical scan active

Vertical scan disabled

Table 44 Chroma bandpass centre frequency

CB

CENTRE FREQUENCY

0

FSC

1

1.1 x FSC

Table 45 Blue stretch

BLS

0 off

1 on

BLUE STRETCH MODE

Table 46 Black stretch

BKS

0 off

1 on

BLACK STRETCH MODE

Table 47 2nd CVBS output (TDA 885X)

CS1 CS0

CVBS-2 OUTPUT

0

0 internal CVBS

0

1 external CVBS

1

0 Y/C (Y + C)

1

1 CVBS-3

Table 48 Blue back when no video signal is identified

BB

0 off

1 on

BLUE BACK

Table 49 Helper output blanking (PALPLUS)

HOB

0

1

OUTPUT BLANKING

not active

active

December 16, 1997

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