TA1360AFG_05 Datasheet, PDF (51/110 Pages) Toshiba Semiconductor – YCbCr/YPbPr Signal and Sync Processor for Digital TV, Progressive Scan TV and Double Scan TV

TA1360AFG
Note No.
Characteristics
P10 Dynamic Yγ correction point
SW71
A
Test Conditions
SW Mode
SW70 SW68 SW64
B
C
B
SW74
OPEN 1.
2.
3.
4.
5.
6.
Test Method (Test condition: V_CC = 9 V/2 V, Ta = 25 ± 3°C)
Connect external power supply PS1 to #68, PS2 to TP1, and set PS2 to 0 V.
Set dark area dynamic Yγ gain VS dark area to MIN (00), static Yγ gain1 to OFF (000).
Increase PS1 from V₆₈ [V] to V₆₈ [V] + 0.7 V and plot voltage change of #12 picture period. Take 0 for V₆₈
[V] when the change is plotted. (V₆₈ is pin voltage of pin 68)
Set dark area dynamic Yγ gain VS dark area max (11), static Yγ gain1 to max (111) and PS2 to 1.2 V.
Increase PS1 from V₆₈ [V] to V₆₈ [V] + 0.7 V and plot voltage change of #12 picture period.
Measure VDGP by the following figure, and P_DGP using the following equation.
DGP = (VDGP [V] − V₆₈ [V])/0.7 [V] × 100
#12 voltage [V]
ON
OFF
V₆₈
VDGP
#68 voltage [V]
V₆₈ + 0.7V
(100 IRE)
51
2005-08-18