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MFG:20  Package Cooled:ROHM  

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Part Number: BA7725FS

 

MFG: 20

Package Cooled: ROHM

 

Description: The BA7725S and BA7725FS are analog companders designed for KARAOKE echo systems, and logarithmically ...


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BA7725FS General Description


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 combination with the BU9252S or BU9252F to create a digital echo system. These ICs have an internal line mixer amplifier 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.

BA7725FS Maximum Ratings

Parameter Symbol Limits Unit
Power supply voltage Vcc

 13 V
Power dissipation BA7725S Pd 1000*1 mW
BA7725FS 600*2
Operating temperature Tstg 55 ~ + 125
Storage temperature Tj 10 ~ + 70

BA7725FS Features

 Internal logarithmic 1 / 2 compression circuit and 2 * expansion circuit
Internal 2-channel buffer amplifier used as a tertiary low pass filter
Internal mixer amplifier that mixes line input and microphone input
Internal electronic volume control allows for adjustment of the echo mixer level and loop mixer level using an external DC voltage.
Internal microphone amplifier and microphone input ON / OFF switch

BA7725FS Typical Application

Circuits that require analog signal compression and expansion

BA7725FS Connection Diagram

BA7725FS Connection Diagram

BA7725FS datasheet

BA7725FS
PDF/DataSheet Download

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