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ROHM Semiconductor - Sound Processor

Numéro de référence BD37512FS
Description Sound Processor
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BD37512FS fiche technique
Datasheet
Sound Processor with Built-in 2-band Equalizer
BD37512FS
General Description
BD37512FS is a sound processor with built-in 2-band
equalizer for car audio. The functions are 4ch stereo
input selector, input-gain control, main volume and 4ch
fader volume. Moreover, its “Advanced switch circuit”,
which is an original ROHM technology, can reduce
various switching noise (ex. No-signal, low frequency
like 20Hz & large signal inputs). “Advanced switch”
makes control of microcomputer easier, supporting the
construction of a high quality car audio system.
Key Specifications
Power Supply Voltage Range:
Circuit Current (No Signal):
Total Harmonic Distortion:
Maximum Input Voltage:
Cross-talk Between Selectors:
Volume Control Range:
Output Noise Voltage:
Residual Output Noise Voltage:
Operating Temperature Range:
7.0V to 9.5V
15mA(Typ)
0.005%(Typ)
2.3Vrms(Typ)
-100dB(Typ)
+0dB to -40dB
6µVrms(Typ)
2µVrms(Typ)
-40°C to +85°C
Features
Reduce switching noise of mute, main volume,
fader volume, bass, trebles by using advanced
switch circuit
Built-in 1 differential input selector and 3
single-ended input selectors.
Built-in ground isolation amplifier inputs, ideal for
external stereo input.
Decrease the number of external components due
to built-in 2-band equalizer filter.
It is possible to adjust the gain of the bass and
treble up to ±20dB with 1 dB step gain adjustment.
Energy-saving design resulting in low current
consumption, by utilizing the Bi-CMOS process. It
has the advantage in quality over scaling down the
power heat control of the internal regulators.
Input terminals and output terminals are organized
and separately laid out to keep the signal flow in
one direction which results in simpler and smaller
PCB layout.
It is possible to control the I2C BUS by 3.3V / 5V.
Package
W(Typ) x D(Typ) x H(Max)
SSOP-A20
8.70mm x 7.80mm x 2.01mm
Applications
It is optimal for use in car audio systems. It can also be
used for audio equipment of mini Compo, micro Compo,
TV, etc.
Product structureSilicon monolithic integrated circuit
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product has no designed protection against radioactive rays
1/26
TSZ02201-0C2C0E100420-1-2
16.Dec.2015 Rev.001

PagesPages 30
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