參數(shù)資料
型號(hào)： BA7797
廠商： Rohm CO.,LTD.
英文描述： VCR standard audio signal processor
中文描述： 錄像機(jī)標(biāo)準(zhǔn)音頻信號(hào)處理器
文件頁數(shù)： 1/8頁
文件大?。?/td> 108K
代理商： BA7797
1
Video ICs
VCR standard audio signal processor
BA7797F
The BA7797F is standard audio signal processor designed for use in VCRs and tape decks. The circuit is comprised
of a playback preamplifier, a line amplifier, a recording amplifier, an ALC circuit and high-voltage head switch.
The IC has a built-in coil equivalent circuit for recording equalization, which eliminates the need for an external com-
ponent.
Applications
Video cassette recorders and tape decks
Features
1) Two input switching systems built-in (LINE and TUN-
ER).
2) Built-in coil equivalent circuit for recording equaliza-
tion.
3) High-performance low-noise playback amplifier.
Block diagram
4) ALC level can be adjusted by connection of an
external resistor.
5) Compatible with single-mode EQ making it ideally
suited to widely-used decks.
LINE
ALC
P
R
R
0dB
EQ
REC AMP
B
M
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
GND
+ 28dB
V
CC
PB IN
REC HEAD SW
REC OUT
REC L
RIPPLE FILTER
REC / EE CTRL
LINE OUT
ALC LEVEL ADJ
PB NFB
PB OUT
PB LINE IN
ALC FILTER
TUNER IN
PB / TU / LINE CTRL
LINE IN
MUTE CTRL
ATT
– 8dB
ATT
– 8dB
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
BA7797F 制造商:ROHM 制造商全稱:Rohm 功能描述:VCR standard audio signal processor
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