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BA7787FS Scheda tecnica(PDF) 1 Page - Rohm |
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BA7787FS Scheda tecnica(HTML) 1 Page - Rohm |
1 / 24 page 1 Multimedia ICs Headphone / speaker amplifier for notebook computers BA7786FP-Y / BA7787FS The BA7786FP-Y and BA7787FS are sound amplifiers designed for notebook computers, and contain a suspend function and input pins for the system beep and PM beep sounds used by notebook computers. In short, this single- chip IC contains all the analog audio components needed for notebook computers. •Applications Notebook computers •Features 1) Stereo headphone amplifier that supports mixing input, along with a stereo speaker amplifier (BA7786FP-Y) or BTL monaural speaker amplifier (BA7787FS). 2) Internal anti-pop circuit, to prevent the popping sounds that occur when the power is turned on and off. 3) Internal electronic volume switch and mute circuit. 4) Separate suspend modes for the headphone amplifi- er and speaker amplifier, for low-power-consumption computers . 5) Two beep input pins, a necessity for notebook com- puters. •Absolute maximum ratings (Ta = 25°C) •Recommended operating conditions (Ta = 25°C) Parameter Symbol Limits Unit Power supply voltage VCC V 6 Power dissipation mW 850∗1 Pd 600∗2 Operating temperature Topr Tstg °C °C – 10 ~ + 70 Storage temperature – 55 ~ + 125 BA7786FP-Y BA7787FS ∗1 Reduced by 6.8mW for each increase in Ta of 1°C over 25°C. ∗2 Reduced by 6.0mW for each increase in Ta of 1°C over 25°C. Parameter Symbol Typ. Unit Power supply voltage VCC V Min. Max. 4.5 5.0 5.5 Product S.P.amp Other functions BA7786FP-Y BA7787FS H.P.amp Stereo Stereo Stereo Monaural SYSTEM / PM BEEP input, SUSPEND, EVR, MUTE, BEEP level control |
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