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參數(shù)資料
| 型號(hào)： | LA7458W |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, SQFP-64 |
| 文件頁數(shù)： | 13/22頁 |
| 文件大小： | 244K |
| 代理商： | LA7458W |
LA7458W
No.A0642-20/22
Continued from preceding page.
SW No.
Parameter
Symbol
Input
point
Test
point
1
3
5
6
16
23
31
42
46
47
48
53
54
55
59
61
Remark
Bandpass filter monitor
level
BFM150
TA19
TA18
B
A
B
C
A
B
Bandpass filter
frequency
characteristics
1.00MHz/1.50MHz
BFM100
TA19
TA18
B
A
B
C
A
B
Bandpass filter
frequency
characteristics
1.20MHz/1.50MHz
BFM120
TA19
TA18
B
A
B
C
A
B
Bandpass filter
frequency
characteristics
1.30MHz/1.50MHz
BFM130
TA19
TA18
B
A
B
C
A
B
Bandpass filter
frequency
characteristics
1.40MHz/1.50MHz
BFM140
TA19
TA18
B
A
B
C
A
B
Bandpass filter
frequency
characteristics
1.60MHz/1.50MHz
BFM160
TA19
TA18
B
A
B
C
A
B
Bandpass filter
frequency
characteristics
1.70MHz/1.50MHz
BFM170
TA19
TA18
B
A
B
C
A
B
Bandpass filter
frequency
characteristics
1.80MHz/1.50MHz
BFM180
TA19
TA18
B
A
B
C
A
B
Bandpass filter
frequency
characteristics
2.00MHz/1.50MHz
BFM200
TA19
TA18
B
A
B
C
A
B
LP/SP Bandpass filter
input/output gain
difference
GBLPSP
TA19
TA18
B
A
B
C
A
B
The gain
difference when
switch 48 is
switched between
B and C.
Playback FM
demodulation output
voltage
VBLPL
TA19
TA50
B
A
B
C
A
B
Playback FM
demodulation output
distortion
THBLPL
TA19
TA50
B
A
B
C
A
B
Playback FM
demodulation output
noise
VNRP
TA19
TA50
B
A
B
C
A
B
Self record-playback
level
VBRP
B
A
B
C
A
B
Input the deviation
level measured in
FDO.
Dropout detection on
level
DODON
TA19
B
C
A
B
Refer to figure 1
Dropout detection off
hysteresis
DODOFF
TA19
B
C
A
B
Refer to figure 1
Muting on time
TMTON
TA19
B
A
B
C
A
B
Refer to figure 2
Muting release time
Muting hold time
(NTSC)
TMIOFF
TA19
B
A
B
C
A
B
Refer to figure 2
Hold start time
THOSL
TA19
B
C
A
B
Refer to figure 3
Hold complete time
THOFL
TA19
B
C
A
B
Refer to figure 3
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