參數(shù)資料
型號： LA7437A
廠商： Sanyo Electric Co.,Ltd.
英文描述： Video Signal Processing IC for VHS VCR Systems
中文描述： 視頻信號處理集成電路錄影機系統(tǒng)
文件頁數(shù)： 3/8頁
文件大?。?/td> 215K
代理商： LA7437A
No. 5473-3/8
LA7437, 7437A
Parameter
Symbol
Conditions
min
typ
max
Unit
[Record Mode Y System]
Pseudo-H insertion level
HD
R
WH
R
V
VCA
V
R-YNR1
YLPF1
With 2.7 V applied to T19A
–300
–200
–100
mV
White insertion level
With 1.3 V applied to T19A
150
300
450
mV
VCA detection voltage
2.95
3.10
3.25
V
Record YNR operation EP/LP
Input: 50 Hz system standard color bar signal
10
12
14
mVp-p
Y-LPF frequency characteristics 1
The 1 MHz attenuation with respect to 500 kHz
–0.5
0.0
+0.5
dB
Y-LPF frequency characteristics 2
YLPF2
The 2 MHz attenuation with respect to 500 kHz
–1.0
0.0
+1.0
dB
Y-LPF frequency characteristics 3
YLPF3
The 3.25 MHz attenuation with respect to 500 kHz
–6
–4
–2
dB
Y-LPF frequency characteristics 4
YLPF4
The 4.43 MHz attenuation with respect to 500 kHz
–33
–25
dB
FM modulator output level
V
FM
F
FM1
No input
1.0
1.2
1.4
Vp-p
Carrier frequency 1
50 Hz system
3.7
3.8
3.9
MHz
FM modulator output 2nd
harmonic distortion
H
MOD
–40
–35
dB
Deviation 1
DEV1
50 Hz system
0.95
1.00
1.05
MHz
FM modulator linearity
L
MOD
CS
–2
0
2
%
1/2 f
H
carrier shift
Emphasis gain
6.5
7.8
9.1
kHz
G
EMP
G
NLEMP1
G
NLEMP2
G
NLEMP3
G
ME1
G
ME2
L
WC
L
DC
Input: 0.5 Vp-p, 10 kHz sine wave
–0.5
0.0
0.5
dB
NL emphasis characteristics 1
Input: 500 mVp-p, 2 MHz sine wave
0.5
1.4
2.3
dB
NL emphasis characteristics 2
Input: 158 mVp-p, 2 MHz sine wave
2.6
3.8
5.2
dB
NL emphasis characteristics 3
Input: 50 mVp-p, 2 MHz sine wave
4.9
6.4
7.9
dB
Main emphases characteristics 1
Input: 100 mVp-p, 500 kHz sine wave
4.9
5.2
5.5
dB
Main emphases characteristics 2
Input: 100 mVp-p, 2 MHz sine wave
13.1
13.6
14.1
dB
White clipping level
Input: 1.0 Vp-p, white 100% video signal
176
185
194
%
Dark clipping level
Input: 1.0 Vp-p, white 100% video signal
–55
–50
–45
%
[Playback Mode Y System]
Playback mode current drain
I
CCP
T
DOC
G
DOC
V
VOUT
L
DEM
S
DEM
CL
135
160
185
mA
Dropout compensation time
0.72
0.85
0.98
ms
DOC loop gain
5H later
–1.0
0.0
+1.0
dB
Playback Y level
For playback of an FM signal with a 1.0 MHz deviation
2.0
2.1
2.2
Vp-p
FM demodulator linearity
2, 4, 6 MHz
–3.5
0.0
+3.5
%
Demodulation sensitivity
0.43
0.48
0.53
V/MHz
Carrier leakage
Input: 4 MHz, 600 mVp-p
–40
–35
dB
Playback YNR characteristics
LP/EP
G
P-YNR1
Input: 50% white + CW
–2.5
–3.0
–3.5
dB
NL de-emphasis characteristics 1
G
NLDE1
G
NLDE2
Input: 158 mVp-p, 2 MHz sine wave
–6.0
–5.0
–4.0
dB
NL de-emphasis characteristics 2
Input: 50 mVp-p, 2 MHz sine wave
–10.5
–9.0
–7.5
dB
Double noise canceller
characteristics 1
G
WNC1
Input: 158 mVp-p, 2 MHz sine wave
–1.8
–1.3
–0.8
dB
Double noise canceller
characteristics 2
G
WNC2
Input: 50 mVp-p, 2 MHz sine wave
–6.2
–5.2
–4.2
dB
Double noise canceller
characteristics 3
G
WNC3
Input: 15.8 mVp-p, 2 MHz sine wave
–11.7
–10.7
–8.7
dB
PIC-CTL hard response
characteristics 1
G
PH1
Input: 50% video + sine wave f = 1 MHz, 158 mVp-p
4.0
5.0
6.0
dB
PIC-CTL hard response
characteristics 2
G
PH2
Input: 50% video + sine wave f = 2 MHz, 158 mVp-p
6.5
7.5
8.5
dB
PIC-CTL soft response
characteristics 1
G
PS1
Input: 50% video + sine wave f = 1 MHz, 158 mVp-p
–4.5
–3.5
–2.5
dB
PIC-CTL soft response
characteristics 2
G
PS2
Input: 50% video + sine wave f = 2 MHz, 158 mVp-p
–9.0
–7.0
–5.0
dB
Pseudo-V insertion level
(playback)
VD
P
With 5 V applied to T19A
–150
–50
+50
mV
Pseudo-H insertion level
(playback)
HD
P
With 2.7 V applied to T19A
–300
–200
–100
mV
Continued on next page.
Continued from preceding page.
相關PDF資料
PDF描述
LA7440 Video Signal Processing IC for VHS VCR Systems
LA7440M Video Signal Processing IC for VHS VCR Systems
LA7449 Video Signal Processing IC for VHS VCR Systems
LA7449M Video Signal Processing IC for VHS VCR Systems
LA7451M Two-Channel, Noise Reduction Processor for 8-mm VCR PCM
相關代理商/技術參數(shù)
參數(shù)描述
LA7440 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Video Signal Processing IC for VHS VCR Systems
LA7440M 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Video Signal Processing IC for VHS VCR Systems
LA7449 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Video Signal Processing IC for VHS VCR Systems
LA7449M 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Video Signal Processing IC for VHS VCR Systems
LA7451M 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Two-Channel, Noise Reduction Processor for 8-mm VCR PCM
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