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BD37515FS Datasheet(PDF) 1 Page - Rohm |
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BD37515FS Datasheet(HTML) 1 Page - Rohm |
1 / 31 page ○Product structure:Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays 1/27 TSZ02201-0C2C0E100450-1-2 © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・14・001 www.rohm.com 16.Dec.2015 Rev.001 Sound Processor with Built-in 2-band Equalizer BD37515FS General Description BD37515FS 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, loudness, and 5ch 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. Features Reduce switching noise of input gain control, mute, main volume, fader volume, bass, treble, loudness 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. Built-in input gain controller reduces switching noise for volume of a portable audio input. Decrease the number of external components due to built-in 2-band equalizer filter, LPF for subwoofer, and loudness filter. Also, it is possible to control Q, Gv, fo of 2-band equalizer, fc of LPF for subwoofer and Gv of loudness using I2C BUS control. It is possible to adjust the gain of the bass and treble up to ±20dB with 1 dB step gain adjustment. It is equipped with output terminals of Subwoofer. 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. Key Specifications Power Supply Voltage Range: 7.0V to 9.5V Circuit Current (No Signal): 38mA(Typ) Total harmonic Distortion 1: (FRONT,REAR) 0.001%(Typ) Total Harmonic Distortion 2: (SUBWOOFER) 0.002% (Typ) Maximum Input Voltage: 2.3Vrms (Typ) Cross-talk Between Selectors: -100dB (Typ) Volume Control Range: +15dB to -79dB Output Noise Voltage1: (FRONT,REAR) 3.8µVrms (Typ) Output Noise Voltage2: (SUBWOOFER) 4.8µVrms (Typ) Residual Output Noise voltage: 1.8µVrms (Typ) Operating Temperature Range: -40°C to +85°C Package W(Typ) x D(Typ) x H(Max) 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. SSOP-A20 8.70mm x 7.80mm x 2.01mm Datasheet Datasheet |
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Similar Description - BD37515FS_15 |
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