msm7652 Oki Semiconductor, msm7652 Datasheet - Page 28

• Manufacturer Part Number: msm7652
• Description: Ntsc/pal Digital Video Encoder
• Manufacturer: Oki Semiconductor

MSM7652
Setup Level Setting
When the NTSC operation mode is selected, one of the two kinds of setup level can be selected
by setting of registers.
When the setup level 0 is selected, the Black-to-White is 100IRE.
When the setup level 7.5IRE is selected, the Black-to-White is 92.5IRE.
However, this setup function is valid only for the NTSC mode and invalid for the PAL mode.
Color Bar Generation Function
The 75% luminance order color bar or 100% luminance order color bar is output by setting
internal registers. The output timings for each color bar color is as follows.
(Ts : sampling block period)
28
ITU601 NTSC
ITU601 PAL
Operation mode
q
w
Contents of color bar output timing setting
hblank
127Ts
142Ts
e
Output timing of each color bar color
White
r
t
216Ts
230Ts
q
Yellow
y
u
305Ts
318Ts
w
Cyan Green
394Ts
406Ts
e
Magenta
483Ts
494Ts
r
Red
572Ts
582Ts
t
¡ Semiconductor
Blue
661Ts
670Ts
y
Black
750Ts
757Ts
u
858Ts
864Ts
1H