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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(yè)數(shù)： | 6/10頁(yè) |
| 文件大小： | 180K |
| 代理商： | LA7286 |
Pin Functions
Unit (resistance:
)
Pin No.
Function name
Internal circuit for pin
Description of function
1
Recording bias
automatic control
output
EE, PB
→
off
REC
→
control voltage
2
Head switch
(high withstand
voltage)
EE, PB
→
on
REC
→
off
On resistance
→
10
(typ)
Withstand voltage when off
→
±45 V
(f = 80 kHz)
GND for pin 2 head switch and
Equalizer Amplifier only
3
GND
4
EQ AMP input
Input impedance for playback signal
input from head
→
120 k
(typ)
5
EQ switch 1
Switches the Playback Equalizer
Amplifier high-region frequency
voltage gain.
LP, SP
→
on
EP
→
off
On resistance
→
20
(typ)
6
EQ AMP NFB
Equalizer Amplifier negative
feedback pin
7
GND
GND for all circuit blocks except the
pin 2 head switch and Equalizer
Amplifier
Continued on next page.
LA7286
No.4750-6/10
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