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參數(shù)資料
| 型號(hào)： | LA71076SM |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封裝： | 14 X 20 MM, QIP-100 |
| 文件頁(yè)數(shù)： | 31/31頁(yè) |
| 文件大小： | 1098K |
| 代理商： | LA71076SM |
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LA71076SM
No.A0217-9/31
PB mode chroma T16 = 0V, T11 = 0V, T55 = 0V, T59 = 0V, SW25 = 2
Ratings
Parameter
Symbol
In
Out
Conditions
min
typ
max
Unit
PB chroma video
output level
NVop-35
T74A
T25A
T35
Apply a mixture of the SP mode chroma signal
(SP mode, burst 100mVp-p) that was obtained by converting
the T74A NTSC chroma noise test signal to the low band and
the 4 MHz, 300 mVp-p sine wave to T74 through 3 V bias.
Apply the 50% white signal (321.5mVp-p) from T25A. Measure
the T35A burst level.
510
600
690 mVp-p
PB chroma pin 72
output level
Vop-72
T74A
T25A
T72
Measure the burst level with the same conditions as those for
NVop-35.
200
mVp-p
PB ACC
characteristics (1)
ACCP1
T74A
T41A
T72
With the conditions used for NVop-35, increase the input
chroma level by +6dB, measure the burst level on T72, and
calculate the ratio with Vop-72.
+0.5
+0.8
dB
PB ACC
characteristics (2)
ACCP2
T74A
T25A
T72
With the conditions used for NVop-35, decrease the input
chroma level by -6dB, measure the burst level on T72, and
calculate the ratio with Vop-72.
-0.5
-0.2
dB
PB killer-on
input level
VACK-P
T74A
T25A
T72
With the conditions used for NVop-35, the input chroma level
until output from T72 cease and measure the input burst level
at that point.
(Calculate the ratio with the standard input 100mVp-p signal)
-25
dB
PB killer-on
chroma output level
VOACK-P
T74A
T25A
T35
Measure the T35A chroma output with a spectrum analyzer in
the killer state of the previous item. Calculate its ratio with
NVop-35.
-44
-40
dB
PB main converter
carrier leakage
CLP
T74A
T25A
T35
With the conditions used for NVop-35, measure the T58A with
a spectrum analyzer, and calculate the ratio of the 3.58MHz
component and the 4.21MHz carrier leakage component.
-40
-33
dB
Burst de-emphasis
GBD
T74A
T25A
T72
Apply the mixture of the low-band chroma signal of 629kHz,
burst 100mVp-p, and chroma 125mVp-p and the sine wave of
4MHz and 300mVp-p.
Apply the 50% white signal from T25A.
Measure burst and chroma amplitudes of T72 and accume
them as B and C respectively.
GBD = 20LOG(125
×B)/(100×C)
-5.25
-5.00
-4.75
dB
PB XO output level
VXO-PN
T62
Measure the output level on T62 with an FET probe.
230
380
600 mVp-p
PB XO oscillator
frequency deviation
fXON
T62
In PB mode, let f be the measured frequency on T62.
fXON = f-3579545(Hz)
-7
0
+7
Hz
PB Chroma
2’Fsc distortion
PTHD2
T74A
T25A
T35
With the conditions used for NVOP-35, measure the T35 with a
spectrum analyzer, and calculate the ratio of the 3.58MHz
component and the 7.16MHz component.
-25
dB
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