參數(shù)資料
型號: LA7471M
廠商: Sanyo Electric Co.,Ltd.
英文描述: Two-Channel Microphone Amplifier for Video Camera(用于立體聲攝像機(jī)的2通道擴(kuò)音器放大器)
中文描述: 雙通道視頻攝像機(jī)麥克風(fēng)放大器(用于立體聲攝像機(jī)的2通道擴(kuò)音器放大器)
文件頁數(shù): 7/10頁
文件大小: 180K
代理商: LA7471M
Continued from preceding page.
Unit (resistance:
)
No. 4488-7/10
LA7471M
Pin No.
Function
Internal Circuit
DC Voltage
Description
8
20
9
10
11
12
13
14
15
HPF out
AMP NFB
AMP out
LPF in
LPF out
V
CC
EXT V
CC
power
Gain CTL
2.1 V
2.1 V
2.1 V
2.1 V
2.1 V
V
CC
Output for the high-pass filter 5 dB amplifier and the
EXT mode 15 dB amplifier
NFB for the amplifier that adjusts the wind noise
exclusion high-pass filter on/off level
Output for the amplifier that adjusts the wind noise
exclusion high-pass filter on/off level
This is a low impedance output.
Buffer input for forming a low-pass filter.
The input impedance is 200 k
.
Buffer output for forming a low-pass filter.
This is a low impedance output.
Power supply for circuits other than the external
V
CC
circuit
External V
CC
circuit power supply
Gain control pin
High level (4 V or higher): 6 dB
Mid level (2 to 3 V):
Low level (1 V or lower): 0 dB
3 dB
Continued on next page.
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