Sound Processors with Built-in 2-Band Equalizer - BD3490FV
ROHM's sound processors deliver high-fidelity audio, are easy to use, integrate a two-band equalizer, and are compatible with power supply voltages between 4.75V and 9.5V due to low current consumption operation, making them ideally suited for use in portable stereo systems.
0to-87 / -∞ (1dB / step) Independent control
Tone Control Band
0 / 2 / 4 / 6 / 8 / 12 / 16 / 20
Operating Temperature (Min.)[°C]
Operating Temperature (Max.)[°C]
Features:・Low noise (5μVrms(TYP.)) and low distortion(0.002% (TYP.)).
・Built-in simple surround. Furthermore, it can constitute good surround of sound image
normal position with an external part.
・It can constitute a bass boost or output gain with an external part.
・When the volume setting exchanging, it can use a volume terminal as a microphone input
because there is not an impedance change of a volume terminal.
・Bi-CMOS process is suitable for the design of low current and low energy. And it provides
more quality for small scale regulator and heat in a set.
・The package of this IC is SSOP-B28. It gathers a sound input terminals, sound output
terminals respectively and it arranges them, to be arranging facilitates the
laying-out of PCB pattern and reduces PCB area to one-way in the flow of the