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參數(shù)資料
| 型號(hào)： | LA71525M |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Video/audio signal processor for VHS VCRs |
| 中文描述： | 視頻/于VHS錄像機(jī)音頻信號(hào)處理器 |
| 文件頁(yè)數(shù)： | 8/25頁(yè) |
| 文件大?。?/td> | 277K |
| 代理商： | LA71525M |
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LA71525M
No. 5843-8/25
V
GLP
V
GLR
THD
L
V
NOL
V
OML
V
OA
ALC
THD
A
M
PB
M
A
1
M
A
2
M
A
3
VG
OE
V
NIE
VG
R
THD
R
V
OMR
I
CCRA
I
CCPA
V
IN
= –30 dBV
V
IN
= –30 dBV
V
IN
= –30 dBV
Rg = 1 k
, DIN audio filter
V
IN
= –66 dBV
Rg = 620
, DIN audio filter
V
IN
= –20 dBV
V
IN
= –20 dBV
Output voltage for 1% THD
Electrical Characteristics of Audio System
: V
CC
= 6.8V
: V
CC
= 7.5V
MT
DCO
: V
CC
= 6.8V
: V
CC
= 7.5V
: V
CC
= 6.8V
: V
CC
= 7.5V
: V
CC
= 6.8V
: V
CC
= 7.5V
V
IN
= –28 dBV
V
IN
= –28 dBV
–10 dBV signals applied to all inputs and MUTE enabled.
min
typ
max
LINE AMP voltage gain (PB)
T11
T77
23.0
23.5
24.0
dB
LINE AMP voltage gain
T71
T77
23.0
23.5
24.0
dB
(A1, A2, A3)
T73
T75
LINE AMP distortion (PB)
T11
T77
0.01
0.1
0.4
%
LINE AMP
—
T77
–80.0
–74.0
–70.5
dBV
Output noise voltage (PB)
LINE AMP
T11
T77
Output voltage for 1% THD
1.3
1.5
1.7
Maximum output voltage (PB)
1.5
1.7
1.9
Output voltage with
T73
T77
–7
–6
–5
dBV
LINE AMP ALC
LINE AMP ALC effect
T73
T77
T73 input level reduced from –28 dBV to –8 dBV
0
1
3
dB
LINE AMP ALC distortion
T73
T77
0.01
0.1
0.5
%
MUTE attenuation
T11
T77
T71
T73
T75
EQ AMP open circuit voltage gain
T7
T10
58
64
70
1.8
μ
Vrms
dB
EQ AMP input converted noise
—
T10
0.1
0.8
voltage
REC AMP voltage gain
T79
T1
13.6
14.1
14.6
dB
REC AMP distortion
T79
T1
0.001
0.1
0.4
%
REC AMP
T79
T1
1.3
1.5
1.7
Maximum output voltage
Output voltage for 1% THD
1.5
1.7
1.9
Current drain (REC)
—
—
Influx current measured at pin 76
8.8
11.0
13.2
(no-signal condition)
9.2
11.5
13.8
Current drain (PB)
—
—
Influx current measured at pin 76
7.6
9.5
11.4
(no-signal condition)
8.0
10.0
30
12.0
50
DC offset voltage (PB) in MUTE
—
T77
DC offset voltage at pin 77 measured for MUTE ON
0
mV
condition
(no-signal condition)
Parameter
80
90
dB
120
Vrms
mA
mA
Vrms
Symbol
Input
Output
Conditions
Unit
Ratings
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