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): 93/115頁
文件大小: 1399K
代理商: TA1316AN
TA1316AN
2002-10-04
93
Test Conditions
SW mode
Note
No.
Parameter
SW3
SW4
SW5
SW33
SW34 SW35 SW37 SW38 SW39
Test Method (test conditions: V
CC
=
9 V/2 V, Ta
=
25°
±
3°C)
T16 Blue stretch
circuit
characteristic
A
B
B
A
A
A
A
A
A
(1) Input ramp signal of 0.7 V
P-P
to pin 3.
(2) Set SUB-CONTRAST to maximum.
(3) Set sub-address (1F) data to 04.
(4) Set sub-address (1E) data to 00 and determine blue stretch start point BS
P
min
using pin 41
in the figure below.
(5) Repeat step (4) above, changing sub-address (1E) data to 04 and 07. Determine blue stretch
start points BS
P
CNT and BS
P
max.
(6) Set sub-address (1E) data to 04.
(7) Determine in decibels ratio of gradient at blue stretch on to gradient at blue stretch off, using
pin 41 as shown in the figure below.
(8) Repeat step (7) above, changing sub-address (1F) data to 00 and 07, and determine in
decibels gradient ratios BS
G
min and BS
G
max.
Note: The blue stretch start point is determined as an IRE value by setting the amplitude from the
output signal pedestal level to the positive side to be 2.3 V
P-P
=
100 IRE.
Blue stretch on
Blue stretch off
Blue stretch start point
Output amplitude
Input amplitude
(Pin 41 output)
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