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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)： | 3/7頁 |
| 文件大?。?/td> | 121K |
| 代理商： | BA7781 |
3
Video ICs
Pin descriptions
BA7781K
1
2
3
4
5
6
7
8
9
MODE 1
PRE OUT R
INV IN R
INV OUT R
MTX IN R
MTX OUT R
HPF IN R
OUT R
MIC MONO
MIX OUT
LPF INV IN
LPF INV OUT
V
CC
BIAS
DET IN
DET OUT
OUT L
HPF IN L
MTX OUT L
MTX IN L
INV OUT L
INV IN L
PRE OUT L
MODE 24
EXT IN L
BG
INT IN L
GND
VREG
INT IN R
RIPL
EXT IN R
—
1.65
1.65
1.65
1.65
1.65
1.65
1.65
—
1.65
—
—
3.3
1.65
1.65
—
1.65
1.65
1.65
1.65
1.65
1.65
1.65
—
1.65
1.25
1.65
—
2.5
1.65
1.65
1.65
25k
EF (P - P)
100k
EF (P - P)
B
100k
C (P - P)
C
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
B
—
2k
22k
C (P - P)
100k
EF (P - P)
B
100k
EF (P - P)
25k
75k
10k
75k
—
C
75k
50k
75k
EF (P - P)
EF (P - P)
EF (P - P)
EF (P - P)
EF (P - P)
Pin name
Function
Pin No.
Voltage (
V)
EF: emitter follower, P-P: push pull, B: base, and C: collector.
All numerical values are standardized values.
Circuit
Mode control 1 input
Preamplifier output
Inverter input
Inverter output
Matrix amplifier input
Matrix amplifier output
High-pass filter input
Signal output
External microphone monaural decision signal output
Mix Output
Low-pass filter block inverter input
Low-pass filter block inverter output
V
CC
Bias voltage
Detector circuit input
Detector circuit output
Signal output
High-pass filter input
Matrix amplifier output
Matrix amplifier input
Inverter output
Inverter input
Preamplifier output
Mode control 24 input
External microphone input
For regulator ripple filter capacitor
Internal microphone input
GND
Regulator output
Internal microphone input
For bias ripple filter capacitor
External microphone input
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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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