參數(shù)資料
型號: 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): 55/115頁
文件大小: 1399K
代理商: TA1316AN
TA1316AN
2002-10-04
55
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)
P03
Black stretch start point 1
B
A
C
OPEN (1) Set SW2 to A (maximum gain) and black stretch start point 1 to off (000).
(2) Connect external power supply (PS) to pin 3, increase voltage from V
3
, and plot resulting pin 56 voltage
change S1. Define pin 56 voltages when V
3
and V
3
+
0.7 V are applied as V
0
and V
100
.
(3) Set black stretch start point 1 to 001 (minimum), increase PS voltage from V
3
as in (2) above and plot
resulting pin 56 voltage change S2.
(4) Set black stretch start point 1 to maximum (111), repeat step (2) above and plot resulting pin 56 voltage
change S3.
(5) Determine S1 and S2 intersection V
BST1
and S1 and S3 intersection V
BST2
using the graph below. Calculate
P
BST1
and P
BST2
using the following formulae.
V
Z
[V]
=
V
100
[V]
V
0
[V]
P
BST1
[(IRE)]
=
[(V
BST1
[V]
V
56
[V])
÷
V
Z
]
×
100 (IRE)
P
BST2
[(IRE)]
=
[(V
BST2
[V]
V
56
[V])
÷
V
Z
]
×
100 (IRE)
Pin 56
Pin 3
V
56
V
BST1
V
BST2
S3
S2
S1
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