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BH3544F Datasheet(PDF) 1 Page - Rohm |
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BH3544F Datasheet(HTML) 1 Page - Rohm |
1 / 8 page BH3541F / BH3544F Optical disc ICs Headphone amplifier for CD-ROMs BH3541F / BH3544F The BH3541F and BH3544F are digital-source dual headphone amplifiers. The BH3541F has a fixed gain of 0dB and the BH3544F has a fixed gain of 6dB so that external gain setting is unnecessary. Both the BH3541F and BH3544F have internal mute functions so that prevention of the popping sound when power is turned on and off is greatly simplified. Also, these ICs are equipped with thermal shutdown circuits to prevent damage from short circuits. Product name BH3541F BH3544F Fixed gain 0dB 6dB ! ! ! !Applications Devices that use the headphone output from CD-ROMs, CDs, MDs, personal computers, notebook computers, camcorders, etc. ! ! ! !Features 1) Internal mute function to prevent popping sounds when the power is turned on and off. 2) Built-in thermal shutdown circuit (150 °C) to prevent damage to the IC if a short circuit occurs. 3) Compact SOP8 pin package. ! ! ! !Absolute maximum ratings (Ta = 25 °C) Parameter Symbol Limits Unit Applied voltage VMax 7.0 V Power dissipation Pd 450 mW Operating temperature Topr −25 ~ +75 Storage temperature Tstg −55 ~ +125 °C °C ∗ ∗Reduced by 4.5mW for each increase in Ta of 1°C over 25°C. ! ! ! !Recommended operating conditions (Ta = 25 °C) Parameter Power supply voltage Symbol Min. Typ. Max. Unit VCC 2.8 − 6.5 V |
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