MAS6116 Datasheet, PDF (1/18 Pages) Micro Analog systems – Stereo Digital Volume Control

DA6116.001
27 February, 2009
MAS6116
Stereo Digital Volume Control
• Signal Voltage up to ± 18V
• Two Independent Channels
• Use of Differential DACs Possible
• Serial Control Registers
DESCRIPTION
MAS6116 is a stereo volume control for audio
systems, which require high output voltages (AC3).
It has serial interface, which controls two audio
channels. Simple serial interface allows
microcontroller to control many MAS6116 chips on
the same PCB board. “Clicking” between gain
changes is eliminated by changing gain only when
zero crossing has been detected in the input signal.
FEATURES
• Signal Voltage up to ± 18V
• Two Independent Channels
• Use of Differential DACs Possible
• Serial Control Registers
• Zero Cross Detection for Gain Changes
• Gain Range +15.5db…-111.5dB
• 0.5 dB Gain Step Size
• Mute Pin
• Power On/Off Transient Suppression
• Signal Peak Level Comparator with Adjustable
Reference
• Independent Writing to Both Channels
• Instant Gain Change Function for Fast Gain
Switching
• XMUTE Using the Zero Cross and Timeout
Functions
• Write Operation Status Register
MAS6116 also features a peak detection circuitry
that allows easy monitoring of the output signal.
MAS6116 has also a set of “instant gain change”
instructions that allow fast gain switching. The use
of external operational amplifier provides flexibility
for the operating voltage, signal swing, noise floor
and cost optimization.
APPLICATION
• High End Audio Systems
• Multi-channel Audio Systems
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