BA7786FP-Y
BA7786FP-Y is Headphone / speaker amplifier for notebook computers manufactured by ROHM.
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 amplifier and speaker amplifier, for low-power-consumption puters . 5) Two beep input pins, a necessity for notebook puters.
- Absolute maximum ratings (Ta = 25°C)
Parameter Power supply voltage Power dissipation BA7786FP-Y BA7787FS Symbol VCC Pd Topr Tstg Limits 6 850∗1 600∗2
- 10 ~ + 70
- 55 ~ + 125 Unit V m W °C °C
Operating temperature Storage temperature
∗1 Reduced by 6.8m W for each increase in Ta of 1°C over 25°C. ∗2 Reduced by 6.0m W for each increase in Ta of 1°C over 25°C.
- Remended operating conditions (Ta = 25°C)
Parameter Power supply voltage Symbol VCC Min. 4.5 Typ. 5.0 Max. 5.5 Unit V
Multimedia ICs
BA7786FP-Y / BA7787FS
- Block diagram
HP OUT R HP OUT L HP GND SP IN R SP IN L HP VCC SP VCC LINE MIX ON / OFF SP OUT1 R SP OUT2 R MONO / ST
25 24 23 22 21 20 19 18 17 16 15 14
HP VCC
SP VCC
HP SUSPEND
LINE IN L
MUTE CTRL
LINE IN R
SYSTEM BEEP IN
SP OUT1 L
PM BEEP IN
SP OUT2...
