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參數資料
| 型號： | BA7780 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | Stereo zoom microphone amplifier for camcorders |
| 中文描述： | 立體聲變焦攝像機麥克風放大器 |
| 文件頁數： | 8/10頁 |
| 文件大小： | 144K |
| 代理商： | BA7780 |
8
Video ICs
Measurement circuit switching table (blank cells: no spesification)
BA7780KV
SW1
SW2
SW3
MODE6 MODE43
GAIN CTL
1
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—
—
—
1
1
H, L
H, L
M
L
L
—
M
Ext
—
—
—
—
—
—
—
H
H
Int
M
Int
L
Int
2
H
L
M
—
—
—
—
—
—
—
—
—
—
—
Int
2
L
L
Ext
1
H
L
M
Sub
1
H, L
L
L
Int, Ext, Sub
2
L
L
2
H
L
H
3
H
L
H
2
L
L
L
Int
INT
2
H
L
M
Int
EXT
2
L
L
Ext
1
H
L
H, M, L
Int
1
H
L
H, M, L
Int
2
H
Vth
Int, Ext
2
Vth
L
Int, Ext
2
H
L
Vth
Int
2
H
L
Vth
Int
2
H
L
Vth
Int
2
2.1
2.1
H
L
H
L
M
Int
H
L
Sub
2
H
L
M
Int
1
H
L
M
Sub
2
H
L
M
Int
2
H
L
M
Int
H
L
Sub
Int, Vth of pin 19
Signal input pin
Parameter
Current dissipation
Voltage gain 1
Voltage gain 2
Voltage gain 3
Voltage gain 4
Distortion 1
Distortion 2
Distortion 3
Maximum output
Output noise voltage 1 (EXT)
Output noise voltage 2 (WIDE)
Output noise voltage 3 (ZOOM)
Input switch crosstalk (INT to EXT)
Interchannel crosstalk
GC out L / R gain differential
Inverter OUT L / R gain differential
Internal microphone power supply voltage
External power supply output voltage
External power supply limit current
Input switching CTL holding voltage
Gain switching CTL holding voltage
HPF, CTL holding voltage
MIX 1 gain
MIX 2 gain
ZOOM - BALANCE Gain 1
ZOOM - BALANCE Gain 2
ZOOM - BALANCE Variable position
ZOOM - BALANCE Variable inclination
Sub VCA gain
Gain CTL pin 26.
H, M, and L are V
CC
, 1/2V
CC
, and GND respectively.
Measure the voltage range that maintains the mode for Vth.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| BA7780KV | 制造商:ROHM 制造商全稱:Rohm 功能描述:Stereo zoom microphone amplifier for camcorders |
| BA7781 | 制造商:ROHM 制造商全稱:Rohm 功能描述:Stereo microphone amplifier for camcorders |
| 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 |
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