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參數(shù)資料
| 型號： | LA71578HM |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封裝： | 14 X 20 MM, QIP-100 |
| 文件頁數(shù)： | 5/43頁 |
| 文件大小： | 1533K |
| 代理商： | LA71578HM |
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LA71598HM
No.A0643-13/44
REC Mode P/S Discrimination
Ratings
Parameter
Symbol
In
Out
Conditions
min
typ
max
Unit
P/S discrimination
minimum output level
VPSSR1
T38A
T24
Non mis-discrimination chroma burst or
non-modulation carrier level when getting smaller
chroma burst or non-modulation carrier of signal to
input T38A. Input sync level is 300mVp-p.
10
21
29.5
mVp-p
P/S discrimination
burst position
TBST
T38A
T24
Change the position of chroma burst or
non-modulation carrier which is a signal input to T38A
and regulate the range of non mis-discrimination as
from T38A sync beginning to chroma burst or
beginning of non-modulation carrier. Input sync level
is 300mVp-p.
5.1
5.6
6.1
μs
PB Mode P/S Discrimination
Ratings
Parameter
Symbol
In
Out
Conditions
min
typ
max
Unit
R/P discrimination
input level
VPSPI
T74A
T20A
T24
T74A:
A signal which confirmed 4MHz,300mVp-p
sine wave to low band converted chroma
signal.
T20A:
50% white signal.
Non mis-discrimination low chroma burst or
non-modulation carrier level when changing the size
of T74A low chroma burst or non-modulation carrier.
25
50
100
mVp-p
In Common REC/PB P/S Discrimination
Ratings
Parameter
Symbol
In
Out
Conditions
min
typ
max
Unit
Discrimination small
adjustment center
value
VPSREF
T73
The voltage of the T73.
2.3
2.5
2.7
V
P/S discrimination
comparator threshold
voltage when L
→ H
VPSLH
T69
T24
Increasing voltage the T69 from 2V, measure the T69
voltage when results of discrimination is Low.
2.81
3.01
3.21
V
P/S discrimination
comparator threshold
voltage when H
→ L
VPSHL
T69
T24
Decreasing voltage the T69 from 4V, measure the
T69 voltage when results of discrimination is High.
2.51
2.71
2.91
V
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