MAS6116 Просмотр технического описания (PDF) - Micro Analog systems

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MAS6116

Stereo Digital Volume Control

Micro Analog systems 

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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