参数资料
型号: LA71730EM
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封装: 14 X 20 MM, QFP-100
文件页数: 13/19页
文件大小: 819K
代理商: LA71730EM
LA71730EM
No.7951-3/47
Continued from preceding page.
Input signal
Input/Output point
Ratings
Parameter
Symbol
Signal
Level
In
Out
Conditions
min
typ
max
Unit
Y-LPF frequency
Characteristic NT
NYLPF
SG2
f=500kHz
A = 286
B = 357
C = 714
T48A
T74
Measure the output level (=C) at T74.
YNR = off
290
360
430 mVp-p
Y-LPF frequency
Characteristic 2NT
NYLPF2
SG2
f=2MHz
A = 286
B = 357
C = 714
T48A
T76
Measure the output level (=C) at T74, calculate
the NYLPF2 = 20log (C/NYLPF).
YNR=off
-1.3
-0.3
0.7
dB
Y-LPF frequency
Characteristic 3NT
NYLPF3
SG2
f=3.58MHz
A = 286
B = 357
C = 714
T48A
T76
Measure the output level (=C) at T74, calculate
the NYLPF3 = 20log (C/NYLPF).
YNR=off
-25
dB
Emphasis Gain
VEMPH
SG2
f=10kHz
SG1
PAL
A = 150
B = 175
C = 500
A = 300
B = 700
T74A
T48A
T76
Measure the output level (=C) at T76, calculate
the VEMPH = 20log (C/T74A's level).
YTEST mode (DETAIL = off, NL = off, EMPH =
off)
-0.75
-0.25
0.25
dB
Detail Enhancer 1
GENH1
SG2
f=2MHz
SG1
PAL
A = 150
B = 175
C = 158
A = 300
B = 700
T74A
T48A
T76
Measure the output level (=C) at
T76, calculate the GENH1 = 20log
(C/T74A's level)-VEMPH.
(NL = off, EMPH = off)
: YTEST3 mode
Serial
00
01
10
11
0.5
1.0
1.5
2.0
1.5
dB
Detail Enhancer 2
GENH2
SG2
f=2MHz
SG1
PAL
A = 150
B = 175
C = 50
A = 300
B = 700
T74A
T48A
T76
Measure the output level (=C) at
T76, calculate the GENH2 = 20log
(C/T74A's level)-VEMPH.
(NL = off, EMPH = off)
: YTEST3 mode
Serial
00
01
10
11
2.3
2.2
3.3
4.4
5.5
4.3
dB
Detail Enhancer 3
GENH3
SG2
f=2MHz
SG1
PAL
A = 150
B = 175
C = 15.8
A = 300
B = 700
T74A
T48A
T76
Measure the output level (=C) at
T76, calculate the GENH3 = 20log
(C/T74A's level)-VEMPH.
(NL = off, EMPH = off)
: YTEST3 mode
Serial
00
01
10
11
4.5
6.0
7.0
7.5
dB
Non linear Emphasis
1
NLEMP1
SG2
f=2MHz
SG1
PAL
A = 150
B = 175
C = 158
A = 300
B = 700
T74A
T48A
T76
Measure the output level (=C) at
T76, calculate the NLEMP1 =
20log (C/T74A's level)-VEMPH.
YTEST mode (DETAIL = off,
EMPH = off) : YTEST2 mode
Serial
01
10
11
1
3.0
2.0
1.0
3
dB
Non linear Emphasis
2
NLEMP2
SG2
f=2MHz
SG1
PAL
A = 150
B = 175
C = 50
A = 300
B = 700
T74A
T48A
T76
Measure the output level (=C) at
T76, calculate the NLEMP2 =
20log (C/T74A's level)-VEMPH.
YTEST mode (DETAIL = off,
EMPH = off) : YTEST2 mode
Serial
01
10
11
2.3
5.3
3.8
2.3
5.3
dB
Non linear Emphasis
3
NLEMP3
SG2
f=2MHz
SG1
PAL
A = 150
B = 175
C = 15.8
A = 300
B = 700
T74A
T48A
T76
Measure the output level (=C) at
T76, calculate the NLEMP3 =
20log (C/T74A's level)-VEMPH.
YTEST mode (DETAIL = off,
EMPH = off) : YTEST2 mode
Serial
01
10
11
3
7.0
4.5
3.0
6
dB
Main Emphasis
VME
SG2
f=500kHz
SG1
PAL
A = 150
B = 175
C = 50
A = 300
B = 700
T74A
T48A
T76
Measure the output level (=C) at T76, calculate
the VME = 20log (C/T74A's level)-VEMPH.
YTEST mode (DETAIL = off, NL = off)
9
10.5
12
dB
Main Emphasis 2
VME2
SG2
f=2MHz
SG1
PAL
A = 150
B = 175
C = 50
A = 300
B = 700
T74A
T48A
T76
Measure the output level (=C) at T76, calculate
the VME2 = 20log (C/T74A's level)-VEMPH.
YTEST mode (DETAIL = off, NL = off)
12
14
16
dB
White Clipping
Level 1 (185%)
LWC1
SG1
PAL
A = 150
B = 350
A = 300
B = 700
T74A
T48A
T76
Measure the white clipping level at T76.
(YTEST2 mode)
175
185
195
%
White Clipping
Level 2 (195%)
LWC2
SG1
SG2
PAL
A = 150
B = 350
A = 300
B = 700
T74A
T48A
T76
Measure the white clipping level at T76.
(YTEST2 mode)
185
195
205
%
Continued on next page.
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