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參數(shù)資料
| 型號： | BA7746 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | VCR Hi-Fi audio signal REC / PB amplifier |
| 中文描述： | 錄像機(jī)高保真的音頻信號錄制/鉛放大器 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 142K |
| 代理商： | BA7746 |
6
Video ICs
BA7746S / BA7746FS
19
GND
20
REC: 0V
PB: 0.7V
21
REC: 0V
PB: 0.8V
22
—
—
—
23
REC: 4.1V
PB: 0V
24
REC: 4.1V
PB: 0V
Pin No.
Pin name, function and remarks
Voltage
Circuit diagram
PRE GND
GND for the HEAD AMP.
Use this terminal for the pin 17 to pin 21 GND
connections to improve the noise characteristics.
Connect this pin to the main GND (pin 16).
PRE IN ch2
Inputl for the playback amplifier (ch2).
The low-frequency cutoff characteristics can be
adjusted with the value of the input coupling
capacitor.
The frequency characteristics can be adjusted so
that it is flat with the L value of the rotary
transformer, and the external capacitor C (100pF
etc.).
PRE AC-FB ch2
AC feedback for the playback amplifier (ch2).
The high-frequency characteristics of the playback
amplifier can be adjusted with the R value.
N.C.
Unused.
Connect to
MAIN GND
to improve the
interchannel matching.
REC + B ch2
REC + B (ch2).
Open emitter output circuit.
Turns on and off in accordance with the REC / PB
control signal.
REC + B ch1
REC + B (ch1).
Open emitter output circuit.
Turns on and off in accordance with the REC / PB
control signal.
The values given above are design values, they are not ratings and are not guaranteed.
4k
13k
21
20
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| BA7755 | High-voltage audio head selection switch |
| BA7757 | Switchless REC / PB amplifier for standard audio signal processing |
| BA7765AS | NORMAL AUDIO SIGNAL PROCESSINGS |
| BA7766AS | NORMAL AUDIO SIGNAL PROCESSINGS |
| BA7767AS | NORMAL AUDIO SIGNAL PROCESSINGS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BA7746FS | 制造商:Panasonic Industrial Company 功能描述:IC |
| BA7746S | 制造商:ROHM 制造商全稱:Rohm 功能描述:VCR Hi-Fi audio signal REC / PB amplifier |
| BA7746S/FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:Video LSIs |
| BA7750AL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
| BA7751AFS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
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