BD37034FV-M Datasheet, PDF (1/47 Pages) Rohm – General-Purpose Electronic Volume with Built-in Advanced Switch

Datasheet
Sound Processors for Car Audios
General-Purpose Electronic
Volume with Built-in Advanced Switch
BD37034FV-M
General Description
BD37034FV-M is sound processors for car audio. The
functions are stereo 5 input selector, volume, 3-band
equalizer, loudness, 6ch fader, mixing, HPF for front and
rear, LPF for subwoofer, anti-aliasing-filter, Hi-Voltage
output, output level detector. Moreover, “Advanced
switch circuit”, that is ROHM original technology, can
reduce various switching noise (ex. No-signal, low
frequency likes 20Hz & large signal inputs). “Advanced
switch” makes control of microcomputer easier, and can
construct high quality car audio system.
Features
Reduce switching noise of volume, mute, fader
volume, mixing volume, bass, middle, treble,
loudness by using advanced switch circuit
[Possible to control all steps].
Built-in input selector (single 3 / diff 2).
Decrease the number of external components by
built-in 3-band equalizer filter, LPF for subwoofer,
loudness filter. And, possible to control Q, Gv, fo
of 3-band equalizer and fc of LPF, Gv, fo of
loudness by I²C BUS control freely.
Built-in mixing volume, Hi-Voltage output.
Built-in anti-aliasing-filter, anti-GSM-noise-filter.
Package is SSOP-B28. Putting input-terminals
together and output-terminals together can make
PCB layout easier and can makes area of PCB
smaller.
It is possible to control by 3.3V / 5V for I²C BUS.
AEC-Q100 Qualified.
Applications
It is the optimal for the car audio. Besides, it is
possible to use for the audio equipment of mini
Compo, micro Compo, TV etc with all kinds.
Key Specifications
Total harmonic distortion:
Maximum input voltage:
Cross-talk between selectors:
Ripple rejection
Output noise voltage:
Residual output noise voltage:
Operating Range of Temperature:
0.004%(Typ.)
2.1Vrms(Typ.)
100dB(Typ.)
-65dB(Typ.)
6µVrms(Typ.)
4µVrms(Typ.)
-40℃ to +85℃
package(s)
SSOP-B28
W(Typ.) x D(Typ.) x H(Max.)
10.00mm x 7.60mm x 1.35mm
SSOP-B28
Typical Application Circuit
Figure 1. Application Circuit Diagram
○Product structure:Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
1/44
TSZ02201-0C2C0E100010-1-2
4.OCT.2013 Rev.002