MOSA

MS6257

GAIN AND ATTENUATION VOLUME CONTROLLER IC

REV 1

12

www.mosanalog.com

DEMO BOARD

4

2

1

3

Label 1: Supply Voltage

The AVDD and DVDD should be the same supply voltage, the supply range is 2.7~5.5 VDC.

2-CH+ : The volume-up switch for stereo channel

The volume increase by +1dB as the switch is pressed once, the maximum value is up to +15dB.

The default value is 0dB on initial status.

L-channel and R-channel are active synchronic.

2-CH- : The volume-down switch for stereo channel

The volume decrease by -1dB as the switch is pressed once, the minimum value is up to -79dB.

L-channel and R-channel are active synchronic.

MUTE : Press the switch once to enter mute on or mute off.

The default status is mute off on initial status.

RESET : Reset MCU controller, the system will be loaded default value.

Label 3: Input section

Please input stereo audio signal, as music or sine wave.

Label 4: Output section

Please connected to a post-power-amplifier, as stereo speaker.