BA7725

更新时间： 2024-11-29 22:39:23

品牌	Logo	应用领域
罗姆 - ROHM		卡拉OK
页数	文件大小	规格书
8页	95K
描述
Analog compander for KARAOKE echo systems

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BA7725 数据手册

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

4) Internal electronic volume control allows for adjust-

ment of the echo mixer level and loop mixer level

using an external DC voltage.

2) Internal 2-channel buffer amplifier used as a tertiary

low pass filter

5) Internal microphone amplifier and microphone input

ON / OFF switch

3) Internal mixer amplifier that mixes line input and

microphone input

Absolute maximum ratings (Ta = 25°C)

•

Parameter

Symbol

V^CC

Limits

Unit

Power supply voltage

BA7725S

BA7725FS

1000

Power

dissipation

600

Storage temperature

Operating temperature

Tstg

Topr

– 55 ~ + 125

– 10 ~ + 70

°C

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.

Recommended operating conditions

•

Parameter

Symbol

V^CC

Limits

Unit

Power supply voltage

6.5 12.0

12 3 4 5 6 7 8

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与BA7725相关器件

型号	品牌	获取价格	描述	数据表
BA7725FS	ROHM	获取价格	Analog compander for KARAOKE echo systems
BA7725FSE1	ROHM	获取价格	Compander, 1 Func, PDSO20, SSOP-20
BA7725FSE2	ROHM	获取价格	Compander, 1 Func, PDSO20, SSOP-20
BA7725FST1	ROHM	获取价格	Compander, 1 Func, PDSO20, SSOP-20
BA7725FST2	ROHM	获取价格	Compander, 1 Func, PDSO20, SSOP-20
BA7725S	ROHM	获取价格	Analog compander for KARAOKE echo systems
BA7725S/FS	ROHM	获取价格	Multimedia LSIs
BA7726	ROHM	获取价格	Analog compander with vocal fader for KARAOKE
BA7726AFS	ROHM	获取价格	Analog compander with vocal fader for KARAOKE
BA7726AFS-T1	ROHM	获取价格	Consumer Circuit, PDSO32, 0.80 MM PITCH, SSOP-32