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| TA1201CNG Datasheet, PDF (33/46 Pages) Toshiba Semiconductor – I2C BUS CONTROL NTSC 1CHIP COLOR TV IC | |||
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TA1201CNG
NOTE
ITEM
TEST CONDITION (VCC = 9V, Ta = 25±3°C)
BUS MODE
(00) (02) (03) (04) (0B) (0C) (0D) (0F)
MEASUREMENT METHOD
50 Brightness Control
Characteristics
(00) Ad- (40) (80) (80) (80) (00) (00) (1) Apply a color bar signal to pin 39.
just
(2) Measure the pedestal level of RGB output signal at pin 19, 20 and 21 when the
data of sub-address (02) is set (7F). (VBRTmax)
(3) Measure the pedestal level of RGB output signal at pin 19, 20 and 21 when the
data of sub-address (02) is set (40). (VBRTcest)
(4) Measure the pedestal level of RGB output signal at pin 19, 20 and 21 when the
data of sub-address (02) is set (00). (VBRTmin)
51 Brightness Control
â (40) â
â
â
â
â
â (1) Apply a color bar signal to pin 39.
Difference between 3 Axis.
(2) Measure the difference of pedestal voltage among 3 axis at pin 19, 20 and 21.
52 Cut off Characteristics
â
â
â Ad- Ad- Ad- â
â (1) Apply a color bar signal to pin 39.
just just just
(2) Measure the pedestal level of RGB output signal at pin 19, 20 and 21 when the
data of sub-address (0B, 0C, 0D) is set (FF) (VCUTMAXâ)
VCUTMAX = VCUTMAXâ â VBRTcen
(3) Measure the pedestal level of RGB output signal at pin 19, 20 and 21 when the
data of sub-address (0B, 0C, 0D) is set (80) (VCUTCENâ)
VCUTCEN = VCUTCENâ â VBRTcen
(4) Measure the pedestal level of RGB output signal at pin 19, 20 and 21 when the
data of sub-address (0B, 0C, 0D) is set (00) (VCUTMINâ)
VCUTMIN = VCUTMINâ â VBRTcen
33
2004-05-24
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