參數(shù)資料
型號(hào): TA1316AN
廠商: Toshiba Corporation
英文描述: YCbCr/YPbPr Signal and Sync Processor for Digital TV, Progressive Scan TV and Double Scan TV
中文描述: YCbCr /色差信號(hào)處理器和同步數(shù)字電視,逐行掃描電視和雙掃描電視
文件頁數(shù): 56/115頁
文件大?。?/td> 1399K
代理商: TA1316AN
TA1316AN
2002-10-04
56
Test Conditions
SW mode
Note No.
Parameter
SW1
SW2
SW3
SW56
Test Method (test conditions: V
CC
= 9 V/2 V, Ta
=
25°
±
3°C)
P04
Black stretch start point 2
B
A
A
ON
(1) Set black stretch start point 1 to off (000), picture mute to off (P-MODE: Normal1 (000)) and apply 0 V to #1.
Input TG7 linearity to TPA, adjust amplitude using pin 3 as shown below, set UNI-COLOR to center
(1000000), then measure pin 43 (R OUT) amplitude V
P43
.
(2) Set black stretch start point 1 to 001 (black stretch on), connect external power supply (PS) to pin 56 and
monitor pin 43 (R OUT).
(3) When black stretch start point 2 data is a minimum (00), determine black stretch start point differential
V
00
for PS
=
V
56
(APL
=
0%) and for PS
=
V
56
+
1.0 V (APL
=
100%), as shown below. (Using oscilloscope,
adjust input waveform so that amplitude (gradient) is same as that of output waveform in VAR. Compare
waveforms and determine point where output waveform bends.)
(4) When black stretch start point 2 data is a maximum (11), determine black stretch start point differential
V
11
as in (3) above.
(5) Calculate using the following formulae.
P
BS1
=
(
V
00
/V
P43
)
×
100
P
BS2
=
(
V
11
/V
P43
)
×
100
APL 0%
Pin 3 waveform (linear)
0.7 V
p-p
0.3 V
p-p
V
***
Pin 43 (R OUT)
APL 100%
LINEARITY
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