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ROHM Semiconductor - Single Power Supply Sound Processors

Numéro de référence BD3401KS2
Description Single Power Supply Sound Processors
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BD3401KS2 fiche technique
Sound Processors for BOOM BOX / Mini-component Stereo
Single Power Supply Sound Processors
with Built-in Pre Amplifier for Tape Recording
and Play Back (With Integrated 2-/3- band Equalizer)
BD3401KS2,BD3402KS2
No.10086EAT03
Description
The Sound Processor with built-in record/play functions for cassette players, is suited for sound quality products such as,
BOOM BOX, mini- and micro-audio systems. It incorporates various functions ranging from audio source selectors to
preamplifiers at the front stage, preamplifier for cassette recording/playing, and a 2-wire serial bus.
Features
1) Provides Surround and Bass Boost with the Soft-switching feature to reduce the shock sound at switching (BD3401KS2)
2) Provides a specialized power supply terminal in a digital circuit, in order to set and maintain the state inside the IC
by the minute stand-by current.
3) Built-in preamplifier for cassette recording/playing allows for minimal external components, freeing up board space.
4) Arranges all I/O terminals to a single point and allows easy PCB routing.
5) Volume and Tone implemented with a resistance ladder circuit; achieving high performance with low noise and low distortion
6) Energy-saving design resulting in low current consumption, by utilizing the BiCMOS process.
It has the advantage in quality over the scaling down the power heat control of the internal regulators.
Applications
BOOM BOX, mini-audio systems, and micro-audio systems.
Product lineup
Equalizer
Parameter
Volume
Cassette Recording/Playing Amplifier
Karaoke
Microphone Input
Subwoofer Output
Output for Spectrum Analyzer
Surround
Bass Boost
Package
BD3401KS2
3 band(BASS, MIDDLE, TREBLE)
0 to -44dB/2dB step
-44 to -76dB/4dB step, -dB
SQFP-T64
BD3402KS2
2 band(BASS, TREBLE)
0 to -44dB/2dB step
-44 to -76dB/4dB step, -dB
-
-
-
-
-
-
SQFP-T64
Absolute maximum ratings (Ta=25)
Items
Symbol
Ratings
Power Supply Voltage
Vcc 10
Vdd 6
Power Dissipation
Pd 1200*
Input Voltage Range
Vin GND-0.3 to VCC+0.3
Operating Temperature Range
Topr
-25 to +75
Storage Temperature Range Tstg -55 to +125
* Reduced by 12 mW/over 25, when installed on the standard board (size: 70×70×1.6mm).
Operating voltage range
Device Name
BD3401KS2
BD3402KS2
Symbol
Vcc
Vdd
Range
8 to 9.5
3 to 5.5
Unit
V
V
mW
V
Unit
V
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/18
2010.10 - Rev.A

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