LA76810A View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

View to exact match

LA76810A

Monolithic Linear IC / For PAL/NTSC Color Television Sets VIF/SIF/Y/Deflection 1chip IC

SANYO -> Panasonic 

Continued from preceding page.

Input signal

Symbol

Bias (cutoff) control

(min)

Vbias0

(max) Vbias255

Bias (cutoff) control

resolution

Vbiassns

Sub-bias control

resolution

Drive adjustment

maximum output

Vsbiassns

RBout127

Gout15

Output attenuation

RBout0

Gamma correction

Gout0

Rγ

Gγ

Bγ

LA76810A

Test point

19

20

21

19

20

21

19

20

21

Input signal

L-50

L-50

L-100

L-100

Test method

Measure the 0IRE DC levels (Vbias0* V) of the

respective output signals of R output (19), G

output (20), and B output (21).

*: R, G, and B

Measure the 0IRE DC levels (Vbias255* V) of the

respective output signals of R output (19), G

output (20), and B output (21).

*: R, G, and B

Measure the 0IRE DC levels (BAS80* V) of the

respective output signals of R output (19), G

output (20), and B output (21).

*: R, G, and B

Measure the 0IRE DC levels (BAS48* V) of the

respective output signals of R output (19), G

output (20), and B output (21).

Calculate Vbiassns* = (BAS80*-BAS48*)/32

Measure the 0IRE DC levels (SBTPM* V) of the

respective output signals of R output (19), G

output (20), and B output (21).

Calculate Vsbiassns* = (BRTPC*-SBTPM*)

Measure the 100IRE amplitudes

(DRVH* Vp-p) of the respective output

signals of R output (19) and B output (21).

*: R and B

Measure the 100IRE amplitude of the output

signal of G output (20) and assign the measured

value to DRVH* Vp-p.

*: G

Measure the 100IRE amplitudes (DRVL* Vp-p) of

the respective output signals of R output (19), G

output (20), and B output (21).

*: R and B

Measure the 100IRE amplitude of the output

signal of G output (20) and assign the measured

value to DRVL* Vp-p.

*: G

RBout0* = 20Log (DRVH*/DRVL*)

Gout0* = 20Log (DRVH*/DRVL*)

Measure the 100IRE amplitude of the respective

output signals of R output (28), G output (29),

and B output (30) with Gamma Def being ON and

OFF. Assign the measured values to *A, *B and

Vp-p, respectively.

* : R, G, B

*γ = 100*(*A/*B)

Bus bit/input signal

Sub-Brightness:

0000000

Sub-Brightness:

1111111

Red/Green/Blue

Bias: 11111111

Red/Green/Blue

Bias:01010000

Red/Green/Blue

Bias: 00110000

Sub-Brightness:

0101010

Contrast: 0111111

Brightness:

0000000

Brightness:

0000000

Red/Blue Drive:

0000000

Contrast: 0111111

Brightness:

01111111

Gamma Def: Off,On

B Gamma

sel: 11,00

NoA0252-16/40

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