BD3805F
BD3805F is Sound Processor for Car Audio manufactured by ROHM.
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Audio ICS
Sound processor for car audio
The BD3805F is a sound processor developed for car audio. High S/N and low distortion rate of parametric equalizer can be posed without an external capacitor. Pop noise when switching volume, fader, mute and tone gain can’t be heard due to the integrated soft switching circuit. z Applications Car audio, Mini ponent stereo, Micro ponent stereo, DVD, TV z Features z External dimensions (Unit : mm) 1) Noise when switching, attenuation of fader and fader, and gain (middle bass and treble) can be reduced by soft switching circuit.. 13.6±0.2 2) Perfect due low current consumption (Typ.12m A) and energy saving 22 12 design due to Bi-CMOS process. 3) Available for Rear Entertainment System due to I2C BUS control that can use two ICs at maximum. 1 11 0.15±0.1 4) Noise occurred through tone pass can be reduced (5µ Vrms) . 5) External ponents reduced largely by incorporating external filter 0.1 0.4±0.1 1.27 due to the switched capacitor circuit technology. Bass, treble and middle can be controlled freely. 6) Integrated Ground Isolation Amplifier input idea for external stereo SOP22 signal input. 7) SOP22 package is adopted Pins for voice input and signal output are located together to arrange the flow of signal in a same direction. It enables to make layout of board pattern easier and to save space of the board.
7.8±0.3 5.4±0.2 1.8±0.1 0.3Min. z Absolute maximum ratings (Ta=25°C)
Parameter Supply voltage Power dissipation Operating temperature range Storage temperature range
+ +
Symbol VCC Pd Topr Tstg
Limits 10 550 ∗
- 40 to +85
- 55 to +150
Unit V m W C C
∗ Derating 5.5m W / C for operation above Ta=25 C. When standard board(size : 70 70 1.6mm) is mounted. z Operating Voltage Range (Ta=25°C)
Parameter Supply voltage
∗ It must be operated at Ta=25 C.
Symbol VCC
Min. 7.0
Typ.
- Max. 9.5
Unit V
Data She e
1/2
.
. Data Sheet 4 U .
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Audio ICS z Electrical characteristic curves (Unless otherwise...
