| 摘要 |
A dual channel audio coder decoder (codec) chip that has two output pins, which can be used to drive a pair of speakers in stereo mode, or a vibrator and a single speaker in mono mode. Each channel has its own DAC and audio power amplifier to receive an audio signal for driving a speaker. Each channel also has a variable signal generator to generate a vibrator signal for driving a vibrator. The DAC and variable signal generator outputs of each channel are input into a respective multiplexer. The multiplexer and the vibrator frequency are configured via an external digital communication interface. Other embodiments are also described.
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