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參數(shù)資料
| 型號(hào)： | LA7286 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | VCR Audio Signal Recording and Playback Processor(VCR音頻信號(hào)記錄/重放處理器) |
| 中文描述： | 錄像機(jī)音頻信號(hào)錄制和播放處理器（錄像機(jī)音頻信號(hào)記錄/重放處理器） |
| 文件頁數(shù)： | 2/10頁 |
| 文件大小： | 180K |
| 代理商： | LA7286 |
Operating Characteristics
at Ta = 25 °C, V
CC
= 12 V, f = 1 kHz, 0 dBV : 1.0 Vrms
Parameter
Symbol
I
CCE
I
CCP
I
CCR
Conditions
min
9.5
8.5
8.5
typ
12.0
11.0
10.5
max
14.5
13.5
12.5
Unit
mA
mA
mA
Current consumption (EE)
Current consumption (PB)
Current consumption (REC)
[Equalizer amplifier]
Open-circuit voltage gain
Equivalent input noise voltage
[Line amplifier]
Voltage gain (PB input)
Voltage gain (LINE input)
Total harmonic distortion
Output noise voltage
Maximum output voltage
Output voltage when ALC is on
ALC effect
Distortion when ALC is on
[Recording amplifier ]
Voltage gain
Total harmonic distortion
Maximum output voltage
[Mute circuit]
On voltage
Off voltage
Mute attenuation (PB, EE)
[EP, LP, SP switch circuit]
EP mode hold voltage
LP mode hold voltage
SP mode hold voltage
[EE, PB switch circuit]
EE mode hold voltage
PB mode hold voltage
[REC, EE switch circuit]
REC mode hold voltage
EE mode hold voltage
[Switch]
Pin 2 on resistance
Pin 2 input voltage
[Recording bias current automatic adjustment circuit]
Recording bias current
Pin 1 output control range
No signal
No signal
No signal
VG
OE
V
NIE
V
O
= –6 dBV
Rg = 620
, DIN Audio filter
58.4
64.4
1.0
dB
1.8
μVrms
VG
LP
VG
LR
THD
L
V
NOL
V
OML
V
OA
ALC
THD
A
V
O
= –6 dBV
V
O
= –6 dBV
V
O
= –6 dBV
Rg = 1 k
, DIN Audio filter
THD = 1%
V
IN
= –26 dBV
V
IN
= –26 dBV to –6 dBV
V
IN
= –26 dBV
21.0
21.0
21.5
21.5
0.05
–80.0
2.5
–6.0
1
0.05
22.0
22.0
0.3
–74.0
dB
dB
%
dBV
Vrms
dBV
dB
%
1.7
–7.0
–5.0
3
0.6
VG
CR
THD
R
V
OMR
V
O
= –6 dBV
V
O
= –6 dBV
THD = 1%
13.5
14.0
0.05
2.5
14.5
0.3
dB
%
Vrms
1.7
V
MON
V
MOFF
M
P
, M
E
Pin 22 DC voltage
Pin 22 DC voltage
2.5
0
80
6.0
1.5
V
V
dB
90
V
EE
V
EL
V
ES
Pin 21 DC voltage
Pin 21 DC voltage
Pin 21 DC voltage
3.6
1.8
0
6.0
2.6
1
V
V
V
V
LL
V
LP
Pin 23 DC voltage
Pin 23 DC voltage
3
0
6
1
V
V
V
RR
V
RE
Pin 24 DC voltage
Pin 24 DC voltage
3
0
6
1
V
V
R
ON
2
V
IN
2
I2 = ±1 mA
Ta = 65 °C, f = 80 kHz (sin), I
LK
= 10 μA
10
25
±45
V
I
B
The conditions for using each head assume the
specifications shown below.
220
2.5
245
4.0
270
6.0
μA
V
V
CTL
Head Coil Specifications
(1) Application circuit 1 (erase head series type)
.
R/P Head
.
AE Head
.
FE Head
.
OSC Coil: Model name 7QM3, Prototype No. C-14290, Tokyo Parts Ind. Co., Ltd. Tel = 0270-25-1191
58 k
(typ)
+15%
–15%
+25%
–25%
+20%
–10%
(f = 70kHz)
34
(typ)
(f = 70kHz)
80
(typ)
(f = 70kHz)
Pin No.
Wire type
Total number of
coils
3 to 2
2 to 1
←
6 to 5
←
5 to 4
←
2UEW 0.09
32T
20T
180T
25T
LA7286
No.4750-2/10
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