Part number:
AN12941A
Manufacturer:
Panasonic Semiconductor
File Size:
5.82 MB
Description:
Stereo speaker amplifier.
AN12941A_PanasonicSemiconductor.pdf
Datasheet Details
Part number:
AN12941A
Manufacturer:
Panasonic Semiconductor
File Size:
5.82 MB
Description:
Stereo speaker amplifier.
AN12941A, Stereo Speaker Amplifier
Pin No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 VCC SP gain high/low SW REG ripple filter pin Input for PCcard Standby on/off control R-channel input Main signal mute on/off control VREF R-channel for volume Audio mix amplifier R-channel output Volume control signal
ICs for Audio Common Use AN12941A Audio power IC for notebook PC Overview The AN12941A is an amplifier IC for stereo speakers which can output 1 W by 8 Ω or 2 W by 4 Ω.
The AGC circuit is built-in to prevent the resonance or the vibration by the speaker's energy and the clipping distortion what is called "broken up sound." of the speakers.
Also, to reduce power consumption, AN12941A has a built-in function which automatically detects the input signal and can automatically enter power save
AN12941A Features
* Speaker amplifier is 1 W × 2-channel: 8 Ω, VCC = 5 V or 2 W × 2-channel: 4 Ω, VCC = 5 V
* Built-in AGC circuit Prevention of the resonance or the vibration by the speaker's energy and the clipping distortion of the speaker by AGC at excessive input signal (with AGC on/off switch).
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