BD37511FS_15 Datasheet, PDF (1/30 Pages) Rohm – Sound Processor with Built-in 2-band Equalizer

Datasheet
Sound Processor with Built-in 2-band Equalizer
BD37511FS
General Description
BD37511FS is a sound processor with built-in 2-band
equalizer for car audio. The functions are 3ch 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 3 single-ended input selectors
 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 structure：Silicon monolithic integrated circuit
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product has no designed protection against radioactive rays
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TSZ02201-0C2C0E100410-1-2
16.Dec.2015 Rev.001