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參數(shù)資料
| 型號： | BA7781 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | Stereo microphone amplifier for camcorders |
| 中文描述： | 立體聲麥克風(fēng)放大器的攝像機(jī) |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 121K |
| 代理商： | BA7781 |
1
Video ICs
Stereo microphone amplifier for cam-
corders
BA7781K
The BA7781K allows construction of a stereo-microphone amplifier for camcorder use with a minimum number of
external components. The IC has a built-in wind-noise detection circuit, and wind-noise rejection filter. The filter cir-
cuit is controlled automatically. The IC can operate off a 3.0V power supply.
Applications
Camcorders
Features
1) Operates off a 3.0V to 5.25V power supply.
2) Automatic wind-noise rejection circuit.
3) Matrix circuit for stereo emphasis.
4) Automatic switching circuit for external micro-
phones, built-in external monaural decision circuit,
and input switch mode decision circuit.
Block diagram
04
05
06
24
23
22
18
17
16
15
14
12
11
09
25
26
27
28
29
30
31
32
13
10
01
02
03
07
08
21
20
19
EXT IN L
BG
INT IN L
GND
VREG
INT IN R
RIPL
EXT IN R
DET OUT
DET IN
BIAS
V
CC
LPF INV OUT
LPF INV IN
MIX OUT
MIC MONO
M
P
I
I
M
M
H
O
M
P
I
I
M
M
H
O
EXT
INT
13dB
13dB
G
R
B
INT
EXT
+
–
N
W
N
W
15dB
–
EXT
EXT
BIAS
V
CC
MIX
10dB
+
–
15dB
–
D
+
相關(guān)PDF資料 |
PDF描述 |
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| BA7795 | VCR standard audio signal processor |
| BA7797 | VCR standard audio signal processor |
| BA783S | Bandswitching Diodes |
| BA782S | Bandswitching Diodes(開關(guān)二極管) |
| BA783 | ECONOLINE: REC5-S_DRW(Z)/H4,H6 - Safety standards and approval: EN 60950 certified, rated for 250VAV (LVD test report)- Applied for Ul 1950 Component Recognised Certification- 5W DIP Package- 4kVDC & 6kVDC Isolation- Regulated Output- Continuous Short Circiut Protection Auto-Restarting |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BA7781K | 制造商:ROHM 制造商全稱:Rohm 功能描述:Stereo microphone amplifier for camcorders |
| BA7785 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| BA7785FS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Triple Audio Amplifier |
| BA7786FP-Y | 制造商:ROHM 制造商全稱:Rohm 功能描述:Headphone / speaker amplifier for notebook computers |
| BA7786FP--Y/BA7787FS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Headphone/Speaker Amplifier for Notebook Computers |
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