TA1360AFG_05 Datasheet, PDF (59/110 Pages) Toshiba Semiconductor – YCbCr/YPbPr Signal and Sync Processor for Digital TV, Progressive Scan TV and Double Scan TV

TA1360AFG
Note No.
Characteristics
SW71
P18 DC restoration rate correction B
point
Test Conditions
SW Mode
SW70 SW68 SW64
B
C
B
SW74
Test Method (Test condition: V_CC = 9 V/2 V, Ta = 25 ± 3°C)
ON 1. Set DC restoration rate correction point to minimum (000), DC restoration rate correction limit point to 80%
(11), and connect external power supply PS1 to #68.
2. Monitor DC level of #12 picture period. Set PS1 to V₆₈ + 0.7 V, and adjust unicolor so that DC level is + 1.0.
3. Set DC restoration correction rate to minimum (000), and increase PS1 from V₆₈. Plot relation between #74
(DC voltage) and #12 (voltage in picture period).
4. Set DC restoration correction rate to maximum (111), and increase PS1 from V₆₈. Plot relation between #74
and #12.
5. Set DC restoration correction rate to maximum (111), DC restoration rate correction point (111), and increase
PS1 from V₆₈. Plot relation between #74 and #12.
6. Determine V_DT0, and V_DT1 using the following equations.
V_DT0 = [(V_SP0 − V₇₄)/1 V] × 100%
V_DT1 = [(V_SP1 − V₇₄)/1 V] × 100%
#12
DC restoration rate
correction point 000
DC restoration rate correction
point 111
V_SP0
V_PC
DC restoration correction
rate 000
V_SP1
#74
59
2005-08-18