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參數(shù)資料
| 型號： | LA7386 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | NTSC Video Signal Processing LSI for VCRs |
| 中文描述： | NTSC制式視頻信號處理LSI的錄像機(jī) |
| 文件頁數(shù)： | 4/13頁 |
| 文件大?。?/td> | 157K |
| 代理商： | LA7386 |
Continued from preceding page.
Parameter
Symbol
G
NLEMP3
Conditions
min
4.9
typ
6.4
max
7.9
Unit
dB
Nonlinear emphasis
characteristics (3)
V
IN
= 50 mVp-p 2 MHz
Measure ratio of levels of T3 and T4, difference
with G
EMP
V
IN
= 50 mVp-p 500 kHz sine wave
Measure ratio of levels of T4 and T3, difference
with G
EMP
V
IN
= 50 mVp-p 2 MHz
Measure ratio of levels of T4 and T3, difference
with G
EMP
Measure the amplitude at T4 when
V
IN
= 15.8 mVp-p 2 MHz sine wave; compare
level with G
EMP
Measure the amplitude at T4 when
V
IN
= 15.8 mVp-p 2 MHz sine wave in edit mode;
compare level with G
EMP
V
IN
= 500 mVp-p white 100% video
Measure white clipping level at T4
V
IN
= 500 mVp-p white 100% video
Measure dark clipping level at T4
Main linear emphasis
characteristics (1)
G
ME1
4.9
5.2
5.5
dB
Main linear emphasis
characteristics (2)
G
ME2
13.1
13.6
14.1
dB
Detail enhancer US mode
characteristics (1)
G
ENHS1
2.9
3.9
4.9
dB
Detail enhancer US mode
characteristics (2)
G
ENHS2
0.7
1.7
2.7
dB
White clipping level
L
WC
186
193
200
%
Dark clipping level
L
DC
–50
–45
–40
%
[PB Mode Y]
Current consumption PB
I
CC
P
Incoming currents at pins 29 and 24 when
V
CC
= 5.0 V
T33A: 4 MHz, 300 mVp-p sine wave
T3A: 0.5 Vp-p video signal
T33A: time from when input went to 0 until T28A
output returned
V
IN
= 300 mVp-p, f = 4 MHz, output voltage
V
IN
= 300 mVp-p, f = 2 MHz, V
DEM2
V
IN
= 300 mVp-p, f = 6 MHz, V
DEM6
Calculate S
DEM
= (V
DEM2
– V
DEM6
)/4
L
DEM
=V
DEM4
– (V
DEM2
+ V
DEM6
)/2
V
DEM2
– V
DEM6
125
155
185
mA
Dropout compensation period
T
DOC
0.6
1.0
ms
FM demodulation voltage
FM demodulation sensitivity
V
DEM4
S
DEM
0.9
0.11
1.05
0.14
1.15
0.17
V
V/MHz
FM demodulation linearity
L
DEM
x 100
–3.5
0
+3.5
%
Carrier leakage
CL
V
IN
= 300 mVp-p, f = 4 MHz
Ratio between 4 MHz component of T1 and
S
DEM
V
IN
= 500 mVp-p video signal (ramp waveform)
V
IN
= 500 mVp-p noise test signal –30 dB
S/N difference with S6 on/off
–40
–35
dB
Noncorrelation detection level
PB YNR characteristics
LP/EP (1)
PB YNR characteristics
LP/EP (2)
PB YNR characteristics
SP (3)
Playback through gain
V
CORR
GP-YNR1
22
IRE
dB
2.5
GP-YNR2
V
IN
= 500 mVp-p noise test signal –30 dB
S/N difference with EDIT on/off; pin 36 low
1.5
dB
GP-YNR3
V
IN
= 500 mVp-p noise test signal, –30 dB
S6 edit on/off S/N ratio Pin36 low
1.5
dB
G
PB
Apply V
IN
= 0.5 Vp-p video signal to pin 3, and
determine ratio between pin 28 output level and
input level
T33A: 4 MHz, 300 mVp-p sine wave
T3A: 0.5 Vp-p video signal
Measure input signal level when T33A signal
drops momentarily and T28A output goes to 0
N
IN
= white 50% video + sine wave
f = 2 MHz, 158 mVp-p
Measure I/O response, and assign output level
described above as 0 dB
f = 2 MHz, 50 mVp-p
4.5
6.0
7.5
dB
Dropout detection (feedback)
level
L
DOC
30
40
50
mVp-p
Nonlinear de-emphasis
characteristics (1)
GNL
DEEM1
–6.0
–5.0
–4.0
dB
Nonlinear de-emphasis
characteristics (2)
Double noise canceller
characteristics (1)
Double noise canceller
characteristics (2)
GNL
DEEM2
–9.0
–8.0
–7.0
dB
G
WNC1
f = 2 MHz, 158 mVp-p
–2.3
–1.8
–1.3
dB
G
WNC2
f = 2 MHz, 50 mVp-p
–6.0
–5.0
–4.0
dB
Continued on next page.
LA7386
No.5472 - 4/13
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| LA7390N | VHS-format VCR Video Signal Processor |
| LA7391AN | Global VHS-format VCR Video Signal Processor |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA7390 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:VHS-format VCR Video Signal Processor |
| LA7390L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:VHS-format VCR Video Signal Processor(295.40 k) |
| LA7390N | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:VHS-format VCR Video Signal Processor |
| LA7391 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LA7391A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
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