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DA9116.005 22 November, 2005
MAS9116
Stereo Digital Volume Control
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DESCRIPTION
MAS9116 is a stereo volume control for audio systems, which require high output voltages (AC3). It has a 16-bit serial interface, which controls two audio channels. Simple serial interface allows microcontroller to control many MAS9116 chips on the same PCB board. “Clicking” between gain changes is eliminated by changing gain only when zero crossing has been detected from the signal. The use of external operational amplifier provides flexibility for the operating voltage, signal swing, noise floor and cost optimization.