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參數(shù)資料
| 型號(hào)： | LA71521M |
| 文件頁數(shù)： | 3/25頁 |
| 文件大小： | 520K |
| 代理商： | LA71521M |
LA71521M
No. 5842-3/25
min
typ
max
REC-FM output level
T18
Secondary distortion measured in no-signal input condition
–40
–35
dB
Secondary distortion
Deviation 1 (PAL)
T28A
T18
0.95
1.00
1.05
MHz
Deviation 2 (NTSC)
T28A
T18
0.95
1.00
1.05
MHz
FM modulator linearity
T26
T18
Output frequency set to f2.85 with 2.85V DC applied to
–2
0
%
T26
T18
Output frequency shift
6.5
7.8
9.1
kHz
Emphasis gain
T26A
T24
–0.75
–0.25
dB
T37
Detail
T26A
T24
0.1
0.6
1.1
dB
enhancer characteristics 1
Detail
T26A
T24
1.3
2.3
3.3
dB
enhancer characteristics 2
Detail
T26A
T24
1.8
3.3
4.8
dB
enhancer characteristics 3
Nonlinear
T26A
T24
0.3
1.2
2.1
dB
emphasis characteristics 1
Nonlinear
T26A
T24
2.5
3.8
5.0
dB
emphasis characteristics 2
Nonlinear
T26A
T24
6.5
8.0
9.5
emphasis characteristics 3
4.5
6.0
7.5
2.5
4.0
5.5
0
0
0
Main linear
T26A
T37
10.5
11.0
11.5
dB
emphasis characteristics 1
Main linear
T26A
T37
12.5
13.0
13.5
dB
emphasis characteristics 2
White clip level
T28A
T37
185
195
205
176
185
194
Dark clip level
T28A
T37
–57.5
–52.5
–47.5
–52.0
–47.0
–42.0
Video output linearity
T28A
T38
T38 stair levels measured with video signal 1.0Vp-p
–0.5
0
dB
(linearity unit, 5 stairs) input. Stair linearity determined by
arithmetic processing.
[PB mode Y]
Current drain PB
5V: pins 36, 41, 47; 7V: pin 76
153
170
187
mA
Sum of influx current at pins 36, 41, 47, 76 measured
Dropout compensation time
T15
T38
T20: 4 MHz, 300 mVp-p sine wave
10.5
12.5
14.5
H
T26A
T26A: revert time for T38 output from when 0.5 Vp-p video
signal T15 input is set to 0
DOC characteristics
T15
T38
T15: 4 MHz, 300 mVp-p sine wave
–1.5
0
dB
T26A
T26A: 0.5Vp-p video signal
Input/output response 5H after setting T15 input to 0
PB Y level
T15
T38
Playback Y level with DEV = 1.0 MHz FM signal input
2.00
2.10
2.20
Vp-p
Self-recording/playback Y level
T38
Playback Y level for self-recording/playback
1.93
2.10
2.27
Vp-p
+2
+0.5
+1.5
+0.25
dB
%
%
Parameter
Symbol
Input
Output
Conditions
Ratings
Unit
Continued from preceding page
1/2f
H
carrier shift
Continued on next page
H
MOD
DEV1
DEV2
L
MOD
G
EMP
24
G
EMP
37
G
ENH
1
CS
G
ENH
2
G
ENH
3
G
NLEMP
1
G
NLEMP
2
G
NLEMP
3
G
ME
1
G
ME
2
L
WC
L
DC
LINY
I
CCP
T
DOC
G
DOC
V-Y
OUT
R/P-
OUT
T18 deviation measured with V
IN
= white 100% 1 Vp-p
T18 deviation measured with V
IN
= white 100% 1 Vp-p
Level difference of T26A and T37 measured with
V
IN
= 500 mVp-p, 10 kHz sine wave input
Level difference of T26A and T37 measured with
V
IN
= 158 mVp-p, 2 MHz sine wave input
Differential with G
EMP
24
Level difference of T26A and T24 measured with
V
IN
= 50 mVp-p, 2 MHz sine wave input
Differential with G
EMP
24
Level difference of T26A and T24 measured with
V
IN
= 15.8 mVp-p, 2 MHz sine wave input
Differential with G
EMP
24
Level difference of T26A and T24 measured with
V
IN
= 500 mVp-p, 2 MHz sine wave input
Differential with G
EMP
24
Level difference of T26A and T24 measured with
V
IN
= 158 mVp-p, 2 MHz sine wave input
Differential with G
EMP
24
Level difference of T26A and T24 measured Serial 1
with V
IN
= 50 mVp-p, 2 MHz sine wave input 2
Differential with G
EMP
24 3
4
Level difference of T26A and T37 measured with
V
IN
= 50 mVp-p, 500 kHz sine wave input
Differential with G
EMP
37
Level difference of T26A and T37 measured with
V
IN
= 50 mVp-p, 2 MHz sine wave input
Differential with G
EMP
37
White clip level at T37 measured with CTL 1
V
IN
= white 100% 1.0 Vp-p 2
Dark clip level at T37 measured with CTL 1
V
IN
= white 100% 1.0 Vp-p 2
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