TA1360AFG_05 Datasheet, PDF (48/110 Pages) Toshiba Semiconductor – YCbCr/YPbPr Signal and Sync Processor for Digital TV, Progressive Scan TV and Double Scan TV

Note No.
Characteristics
P06 Black stretch area
reinforcement current
TA1360AFG
SW71
B
Test Conditions
SW Mode
SW70 SW68 SW64
⎯
C
B
SW74
Test Method (Test condition: V_CC = 9 V/2 V, Ta = 25 ± 3°C)
ON 1. Connect external power supply PS1 to #68.
2. Leave SW70 open, put an ammeter between SW70A and #70, connect external power supply PS2 to SW70A,
set PS1 to 5.7 V, and set PS2 to 5 V.
3. Measure current value IBSA0 and IBSA1 when bus data of black stretch area reinforcement [18] is set to ON
[80] and OFF [81]. Calculate IBSA using the following equation.
IBSA = IBSA0－IBSA1
SW70
A
PS2
µ Ａmmeter
5V
P07 D.ABL detection voltage
B
A
C
B OPEN 1. Set D.ABL sensitivity to maximum (11), and black stretch point 1 to OFF (000).
2. Connect external power supply PS to #78 and decrease voltage from 6.5 V.
3. Repeat 2 when D.ABL detection voltage is changed to 00, 01, 10, and 11. At the moment when #74 picture
period changes to Low, measure respective PS voltages V₀₀, V₀₁, V₁₀, and V₁₁.
4. Calculate voltage differences between V₀₀ and V₀₁ (DV₀₁), between V₀₀ and V₁₀ (DV₁₀), and between V₀₀
and V₁₁ (DV₁₁)
DV_*** = V₀₀ − V₀₁ (V₁₀, V₁₁)
#74 undetected
#74 detected
#70 waveform
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2005-08-18