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參數資料
| 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： | 39/43頁 |
| 文件大?。?/td> | 1533K |
| 代理商： | LA71578HM |
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LA71598HM
No.A0643-5/44
Continued from preceding page.
Ratings
Parameter
Symbol
In
Out
Conditions
min
typ
max
Unit
Double
noisecanceller
characteristics (3)
GWNC3
T20A
T29
f = 1.4MHz, 15.8mVp-p
Serial
000: MIN
100: TYP
111: MAX
-15
-13
-11
dB
PIC-CTL
Hard MAX
GPH1
T20A
T29
f = 2.5MHz, 158mVp-p
6.0
7.0
8.0
dB
PIC-CTL
Soft MAX
GPSF
T20A
T29
f = 2.5MHz, 158mVp-p
-8.8
-6.8
-4.8
dB
Sync separator output
level
VSYP
T20A
T28
With VIN a 0.5Vp-p video signal, measure the output
pulse wave height on T28.
4.0
4.2
4.4
Vp-p
Sync separator output
pulse width
PWSYP
T20A
T28
With VIN a 0.5Vp-p video signal, measure the output
pulse width on T28.
4.35
4.65
4.95
μs
H-Sync output level
VHSYP
T20A
T27
With VIN 0.5Vp-p video signal, measure the output
pulse wave height on T27.
4.0
4.2
4.4
Vp-p
H-Sync output
pulse width
PWHSYP
T20A
T27
With VIN a 0.5Vp-p video signal, measure the output
pulse width on T27.
5.0
μs
Sync tip level
Pedestal level
white level
LVOR
T20A
T29
With VIN a 100% white 0.5Vp-p signal, measure the
sync tip and pedestal and white levels on T29 video
output, and take these as LSYN LPED LWHT,
respectively.
Quasi-V insertion
level
ΔVDP
T20A
T29
Measure the T29 DC voltage with 4.7V applied to
T26, and take this to be LVDP, and compute the
difference with LSYN measured above.
ΔVDP = LSYN-LVDP
0
mV
Quasi-H insertion level
ΔHDP
T20A
T29
Measure the T29 DC voltage with 3.6V
applied to T26, and take this to be LHDP,
and compute the difference with LPED
measured above.
ΔHDP = LPED-LHDP
Serial
0
1
-100
mV
White insertion level
ΔWHP
T20A
T29
Measure the T29 DC voltage with 2.6V
applied to T26,and take this to be LWHP,
and compute the difference with LWHT
measured
ΔWHP = LWHT-LWHP
Serial
0
1
-1450
mV
Edge insertion level
ΔEGP
T20A
T29
Measure the T29 DC voltage with 1.5V
applied to T26,and take this to be LEGP,
and compute the difference with LPED
measured
ΔWHP = LPED-LEGP
Serial
0
1
-100
mV
4V regulator
VREG
T39
Measure the T39 DC level.
3.9
4.1
4.3
V
REC Mode EQ
Ratings
Parameter
Symbol
In
Out
Conditions
min
typ
max
Unit
REC EQ
characteristics 1
GREQ1
T17A
T12
With VIN a CW 2MHz, 300mVp-p signal, measure the
input/output response.
-5.5
-4.5
-3.5
dB
REC EQ
characteristics 2
GREQ2
T17A
T12
With VIN a CW 4MHz, 300mVp-p signal, measure the
input/output response, and take the difference with
GREQ1.
-3.7
-2.7
-1.7
dB
REC EQ
2’nd distortion
HREQ
T17A
T12
Measure the second harmonic in the above
conditions.
-40
-35
dB
REC EQ
characteristics 3
GREQ3
T17A
T12
With VIN a CW 750kHz, 400mVp-p signal, measure
the input/output response.
-20
dB
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