TB1254N View Datasheet(PDF) - Toshiba

Part Name

Description

Manufacturer

TB1254N

PAL / NTSC / SECAM 1CHIP (IF+VCD PROCESSOR) IC

Toshiba 



ITEMS

RGB Contrast

••Sub; 04 h

Cb/Cr SW

••Sub; 05 h

Sub-color

••Sub; 05 h

B.B Tint

••Sub; 06 h

Sub-Contrast

••Sub; 10 h

ABL Start Point

••Sub; 10 h

ABL Gain

••Sub; 10 h

B. B.

••Sub; 06 h

Color •

••Sub; 11 h

RGB - Cutoff

••Sub; 12~14 h

G/B Drive

••Sub; 15~16 h

BLK

••Sub; 16 h

AKB System

••Sub; 11 h

Y-Mute

••Sub; 04 h

RGB-Mute

••Sub; 04 h

Ysm Mode

••Sub; 0F h

RGB ABCL

••Sub; 0F h

BITS

6

1

5

5

4

2

2

1

1

8

7

1

6

1

1

1

1

DESCRIPTIONS

Contrast control for RGB input

00: -8.0 dB

~ 3F: 11.4 dB 0.2Vinpuit

Cb/Cr Switch

0: Cb/Cr internal

1: Cb/Cr external

Sub color control (for Cb/Cr input)

00:

-3 dB or less

~ 7F: +3 dB

Base band tint control (for Cb/Cr input)

00: -12deg

1F: +12deg

Sub contrast control

0: -3 dB

~ F: 2.5 dB

Selecting ABL start point

00: 0V

01: -0.20V 10: -0.30 V 11: -0.50 V

ABL Gain control

00: -0.21 V 01: -0.38 V 10: -0.50 V 11: -0.67 V

Blue Back Switch

0: OFF

1: ON (50 IRE )

on/off the color •

0: OFF

1: ON

R,G,B Cutoff control

00: -0.65 V

~ FF: 0.65 V

G,B Drive control

00: -5.5 dB

~ 7F: 3.5 dB

Hor. And Vert. blanking for RGB outputs

0: Blanking ON ( Normal mode)

1: Blanking OFF

00: AKB off(bus control)

10: ACB cutoff -> align to targets

drive -> BUS control

11: AKB cut off , drive -> align to targets

on / off the Y MUTE

0: off

1: on

on / off the RGB mute

0: off

1: on

Select the Ys mode

0: Half tone mode (TV / HT / Ext RGB)

1: Blank

(TV / Ext RGB / Blank)

on / off the ABL / ACL for Ext. RGB

0: on

1: off

DEF STAGE

ITEMS

Vertical Position

••Sub; 18 h

Horizontal Position

••Sub; 18 h

V-Freq

••Sub; 17 h

Ver3.7

BITS

3

5

3

DESCRIPTIONS

Vertical Position control by delaying the V-ramp timing

0: 0H

~ 7: 7H

Horizontal Position control

00: -3ms

~ 1F: 3ms

Vertical frequency pull-in mode selection

000: AUTO

001: 50 Hz

010: 60 Hz

011: Forced 50Hz on no input

100:: Forced 312.5 H Stops V-synchronization

101: Forced 262.5 H Stops V-synchronization

110: Forced 313 H Stops V-synchronization

111: Forced 263 H Stops V-synchronization

 

PRESET

100000

:6.2dB

0:

Cb/Cr internal

100000

:0dB

10000

:0deg

1000

:0dB

00:0V

00:-0.21V

0: FF

0:OFF

00:-0.65 V

0000000

:0dB

0

:Blanking ON

11:AKB cut

off , drive

0:off

1:on

0:Half tone

mode

0: on

PRESET

0:0H

10000:0ms

000:AUTO

00/01/28 17

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