TA1360AFG_05 Datasheet, PDF (93/110 Pages) Toshiba Semiconductor – YCbCr/YPbPr Signal and Sync Processor for Digital TV, Progressive Scan TV and Double Scan TV

TA1360AFG
Note
No.
Characteristics
SW68
T36 Blue stretch
A
point/gain
SW67
B
SW66
B
Test Conditions
SW Mode
SW26 SW25 SW24
A
A
A
SW21
A
SW19
A
SW18
A 1.
2.
Test Method
Input RAMP signal 0.7 Vp-p from pin 68.
Set subcontrast data to maximum.
3. Set subaddress (15) data to (0C).
4. Set subaddress (1A) data to (C0), monitor pin 14, and measure blue stretch start point using
the figure below (BLP_min).
5. Set subaddress (1A) data to (CC), and repeat the step 4 above. (BLP_max)
6. Set subaddress (1A) data to (C4).
7. Monitor pin 14 and measure gradient at blue stretch ON in decibel in relation to the one at
blue stretch OFF according to the figure below. (BLG_max)
8. Set subaddress (15) data to (04), and repeat the step 7 above. (BLG_min)
Note: Calculate blue stretch start point in IRE as setting positive amplitude at pedestal level of
output signal to 2.3 Vp-p = 100 IRE.
Output amplitude
Blue stretch ON
Blue stretch OFF
Input amplitude
93
2005-08-18