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參數資料
| 型號： | LA71076SM |
| 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： | 27/31頁 |
| 文件大小： | 1098K |
| 代理商： | LA71076SM |
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LA71076SM
No.A0217-5/31
Continued from preceding page.
Ratings
Parameter
Symbol
In
Out
Conditions
min
typ
max
Unit
REC-FM modulator
output level
VFM
T66
Measure the T66 output level with no input.
220
300
360 mVp-p
Carrier frequency
FFM2
T66
Measure the output frequency on T66 with no input.
3.36
3.46
3.56
MHz
REC-FM output
second distortion
HMOD
T66
Measure the second distortion with the above state.
-40
-35
dB
Deviation 2
DEV2
T42A
T66
With VIN being a 100% white 1Vp-p signal, measure the
deviation on T66.
0.95
1.00
1.05
MHz
FM modulator
linearity
LMOD
T25
T66
Assume that f2.85 is the output frequency when 3.85VDC is
applied to T25.
-2
0
2
%
1/2 fH carrier shift
CS
T13
T66
The output frequency change
6.5
8.2
9.5
kHz
Emphasis gain
GEMP
T25A
T23
With VIN being a 500mVp-p 10kHz sine wave, measure the
ratio of the levels on T25A and T23.
-0.75
-0.25
0.25
dB
Detail enhancer
characteristics (1)
GENH1
T25A
T23
With VIN being a 158mVp-p 2MHz sine wave, measure the
ratio of the levels on T25A and T23, and calculate the
difference from GEMP.
1.5
2.0
2.5
dB
Detail enhancer
characteristics (2)
GENH2
T25A
T23
With VIN being a 50mVp-p 2MHz sine wave, measure the ratio
of the levels on T25A and T23, and calculate the difference
from GEMP.
3.5
4.5
5.5
dB
Detail enhancer
characteristics (3)
GENH3
T25A
T23
With VIN being a 15.8mVp-p 2MHz sine wave, measure the
ratio of the levels on T25A and T23, and calculate the
difference from GEMP.
4.3
5.8
7.3
dB
Nonlinear emphasis
characteristics (1)
GNLEMP1
T25A
T23
With VIN being a 500mVp-p 2MHz signal measure the ratio of
the levels on T25A and T23, and calculate the difference from
GEMP.
-3.0
-2.0
-1.0
dB
Nonlinear emphasis
characteristics (2)
GNLEMP2
T25A
T23
With VIN being a 158mVp-p 2MHz signal measure the ratio of
the levels on T25A and T23, and calculate the difference from
GEMP.
2.5
4.0
5.5
dB
Nonlinear emphasis
characteristics (3)
GNLEMP3
T25A
T23
With VIN being a 50mVp-p 2MHz signal measure the ratio of
the levels on T25A and T23, and calculate the difference from
GEMP.
5.0
6.5
8.0
dB
Main linear emphasis
characteristics (1)
GME1
T25A
T23
With VIN being a 50mVp-p 500kHz sine wave, measure the
ratio of the levels on T25 and T23, and calculate the difference
from GEMP.
10.0
11.5
12.0
dB
Main linear emphasis
characteristics (2)
GME2
T25A
T23
With VIN being a 50mVp-p 2MHz signal measure the ratio of
the levels on T25A and T23, and calculate the difference from
GEMP.
17.0
18.5
20.0
dB
White clipping level
LWC
T42A
T23
With VIN being a 1.0Vp-p 100% white video signal, measure
the white clipping level on T23.
180
190
200
%
Dark clipping level
LDC
T42A
T23
With VIN being a 1.0Vp-p 100% white video signal, measure
the dark clipping level on T23.
-52
-50
-47
%
REC Mode EQ
Ratings
Parameter
Symbol
In
Out
Conditions
min
typ
max
Unit
REC EQ
characteristics 1
GREQ1
T36A
T66
With VIN being a CW 2MHz, 400mVp-p signal, measure the
input/output response.
-5.7
-4.5
-3.3
dB
REC EQ
characteristics 2
GREQ2
T36A
T66
With VIN being a CW 4MHz, 400mVp-p signal, measure the
input/output response.
-4.0
-2.7
-1.4
dB
REC EQ
characteristics 3
GREQ3
T36A
T66
With VIN being a CW 750kHz, 400mVp-p signal, measure the
input/output response.
-20
dB
REC EQ
2’nd distortion
HREQ
T36A
T66
Measure the second harmonic in the above conditions.
-40
-15
dB
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