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參數(shù)資料
| 型號(hào)： | LA7289 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | VCR Audio Signal Record and Playback Processor |
| 中文描述： | 錄像機(jī)音頻信號(hào)處理器記錄和回放 |
| 文件頁(yè)數(shù)： | 2/11頁(yè) |
| 文件大?。?/td> | 210K |
| 代理商： | LA7289 |
No. 5642-2/11
LA7289
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Current drain (EE)
I
CCE
I
CCP
I
CCR
No signal
10.0
12.5
15.0
mA
Current drain (playback)
No signal
11.2
14.0
16.8
mA
Current drain (record)
No signal
9.6
12.0
14.4
mA
[Equalizer amplifier]
Open-circuit voltage gain
VG
OE
V
NIE
V
O
= –6dBV
Rg = 620
, DIN audio filter
58.4
64.4
–
dB
Input noise voltage
–
1.0
1.8
μVrms
[Line Amplifier]
Voltage gain (PB input)
VG
LP
VG
LL
VG
LT
THD
L
V
NOL
V
OML
V
OA
ALC
V
O
= –6dBV
V
O
= –6dBV
V
O
= –6dBV
V
O
= –6dBV
Rg = 620
, DIN audio filter
THD = 1%
20.1
20.6
21.1
dB
Voltage gain (LINE input)
20.1
20.6
21.1
dB
Voltage gain (TUNER input)
20.1
20.6
21.1
dB
Harmonic distortion
–
0.05
0.3
%
Output noise voltage
–
–75
–69
dBV
Maximum output voltage
1.7
2.5
–
Vrms
Output voltage when ALC operating
V
IN
= –25dBV
V
IN
= –25dBV to –5dBV
V
IN
= –25dBV
–7
–6
–5
dBV
ALC effect
–
1
3
dB
Total harmonic distortion when ALC operating
THD
A
–
0.05
0.6
%
[Record Amplifier]
Voltage gain
VG
CR
THD
R
V
OMR
V
O
= –6dBV
V
O
= –6dBV
THD = 1%
13.5
14.0
14.5
dB
Harmonic distortion
–
0.05
0.3
%
Maximum output voltage
1.7
2.5
–
Vrms
[REC/EE Switching Circuit]
Record mode hold voltage
V
RR
V
RE
The pin 19 DC voltage
3.6
–
6.0
V
EE mode hold voltage
The pin 19 DC voltage
0
–
1
V
[Muting Circuit]
On state hold voltage
V
MON
V
MOFF
The pin 18 DC voltage
3.6
–
6.0
V
Off state hold voltage
The pin 18 DC voltage
0
–
1
V
Muting attenuation
(PB, LINE. TUNER)
M
P
, M
L
, M
T
80
90
–
dB
[PB, LINE. TUNER Switching Circuit]
PB mode hold voltage
V
LP
V
LL
V
LT
The pin 17 DC voltage
3.6
–
6.0
V
LINE mode hold voltage
The pin 17 DC voltage
1.8
–
2.6
V
TUNER mode hold voltage
The pin 17 DC voltage
0
–
1.0
V
[EP. LP. SP Switching Circuit]
EP mode hold voltage
V
EE
V
EL
V
EE
The pin 16 DC voltage
3.6
–
6.0
V
LP mode hold voltage
The pin 16 DC voltage
1.8
–
2.6
V
SP mode hold voltage
The pin 16 DC voltage
0
–
0.8
V
[Switching Circuit]
Pin 2 on resistance
R
ON
2
V
IN
2
I1 = ±1 mA
–
10
30
V
Pin 2 input voltage
Ta = 65°C, f = 70 kHz (sin), I
LK
= 10 μA
–
–
±45
[Record Bias Automatic Adjustment Circuit]
Record bias current
I
B
V1
220
245
270
μA
Pin 1 output control range
2.0
4.0
6.0
V
Electrical Characteristics
at Ta = 25°C, V
CC
= 12 V, f = 1 kHz, 0 dBV = 1.0 Vrms
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