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參數(shù)資料
| 型號(hào)： | BA7725 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | Analog compander for KARAOKE echo systems |
| 中文描述： | 卡拉OK擴(kuò)展器模擬回聲系統(tǒng) |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 94K |
| 代理商： | BA7725 |
1
Multimedia ICs
Analog compander for KARAOKE
echo systems
BA7725S / BA7725FS
The BA7725S and BA7725FS are analog companders designed for KARAOKE echo systems, and logarithmically
compress the signal level by 1 / 2 and then logarithmically expand it by a factor of 2. These ICs can be used in com-
bination with the BU9252S or BU9252F to create a digital echo system. These ICs have an internal line mixer ampli-
fier for mixing line input and echo signals. The internal electronic volume control makes it possible to adjust the mixer
level and loop level mixer with an external DC voltage.
Applications
Circuits that require analog signal compression and expansion
Features
1) Internal logarithmic 1 / 2 compression circuit and 2
×
expansion circuit
2) Internal 2-channel buffer amplifier used as a tertiary
low pass filter
3) Internal mixer amplifier that mixes line input and
microphone input
4) Internal electronic volume control allows for adjust-
ment of the echo mixer level and loop mixer level
using an external DC voltage.
5) Internal microphone amplifier and microphone input
ON / OFF switch
Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Unit
Power supply voltage
V
CC
13
1000
1
600
2
V
Power
dissipation
BA7725S
mW
BA7725FS
Storage temperature
°
C
Operating temperature
1 Reduced by 10mW for each increase in Ta of 1
°
C over 25
°
C.
2 Reduced by 6.0mW for each increase in Ta of 1
°
C over 25
°
C.
°
C
– 55 ~ + 125
– 10 ~ + 70
Pd
Tstg
Topr
Recommended operating conditions
Parameter
Symbol
Limits
Unit
Power supply voltage
V
V
CC
6.5
～
12.0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BA7725FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:Analog compander for KARAOKE echo systems |
| BA7725S | 制造商:ROHM 制造商全稱:Rohm 功能描述:Analog compander for KARAOKE echo systems |
| BA7725S/FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:Multimedia LSIs |
| BA7726 | 制造商:ROHM 制造商全稱:Rohm 功能描述:Analog compander with vocal fader for KARAOKE |
| BA7726AFS | 制造商:ROHM 制造商全稱:Rohm 功能描述:Analog compander with vocal fader for KARAOKE |
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