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参数资料
| 型号： | LA7437 |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP42 |
| 封装： | SDIP-42 |
| 文件页数： | 4/8页 |
| 文件大小： | 224K |
| 代理商： | LA7437 |
No. 5473-4/8
LA7437, 7437A
Parameter
Symbol
Conditions
min
typ
max
Unit
[Record Mode Y System]
White insertion level (playback)
WHP
With 1.3 V applied to T14A
150
300
450
mV
Sync separator output level
VSYP
The SYNC-OUT output pulse wave height
3.9
4.2
4.5
V
Sync separator output pulse width
PWSYP
The SYNC-OUT output pulse width
4.2
4.5
4.8
s
Sync separator output
T
SYP
1.4
1.6
1.8
s
pre-record delay time
4.2 V regulator voltage
VREG
4.0
4.2
4.4
V
[Record Mode Chrominance System]
Chrominance low band
VOR-38
Input: PAL/GBI standard color bar signal, 1 Vp-p
150
190
230
mVp-p
conversion output burst level
VXO oscillator level 1
VVXO-R1
Input: PAL/GBI standard color bar signal, 1 Vp-p
300
500
700
mVp-p
Record ACC characteristics 1
ACC-R1
With only the chrominance signal level increased 6 dB
+0.2
+0.6
dB
Record ACC characteristics 2
ACC-R2
With only the chrominance signal level decreased 6 dB
–0.5
–0.1
dB
ACC killer on input level
VACCK-ON
–26
dB
ACC killer on output level
VO-ACCK
–60
–50
dB
ACC killer recovery input level
VACCK-OFF
–20
dB
VXO control sensitivity
SVXO
3.8
5.7
7.6
Hz/m
APC pull-in range 1
fAPC1
350
Hz
APC pull-in range 2
fAPC2
–350
Hz
BGP delay time
tD
Input: PAL/GBI standard color bar signal, 1 Vp-p
3.1
3.4
3.7
s
BGP pulse width
tW
4.7
4.9
5.1
s
AFC pull-in range 1
fAFC1
+1.0
+7.0
kHz
AFC pull-in range 2
fAFC2
–3.7
–1.0
kHz
[Playback Mode Chrominance System]
Video output burst level
VOP-11
SP mode, input: burst 30 mVp-p
255
300
345
mVp-p
Pin 25 output burst level
VOP-25
SP mode, input: burst 30 mVp-p
195
230
265
mVp-p
Playback ACC characteristics 1
ACC-P1
With the chrominance level increased 6 dB
+0.5
+0.8
dB
Playback ACC characteristics 2
ACC-P2
With the chrominance level decreased 6 dB
–0.8
–0.5
dB
Playback killer on input level
VACK-P
–40
–32
–25
dB
Playback killer on chrominance
VOACK-P
–44
–40
dB
output level
Main converter carrier leakage
CLP
The 5.06 MHz carrier leakage component
–40
–33
dB
Burst de-emphasis level NT
GBD
NTSC mode
–5.25
–5.0
–4.75
dB
Playback XO output level 1
VXO-P1
300
450
600
mVp-p
Playback XO oscillator
fXO
fXO = f – 4.43361875 (MHz)
–90
+9
Hz
frequency deviation
SLD detector current 1
ISLD1
135
A
SLD detector current 2
ISLD2
135
A
NTSC playback burst output level
VBNT
NTSC mode
255
300
345
mVp-p
NTSC to PAL conversion -
VB-NAP
–1.0
0.0
+1.0
dB
V axis burst level
NTSC to PAL conversion burst
B-NAP
–2.0
0.0
+2.0
dB
level ratio
Continued on next page.
Continued from preceding page.
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