MS6257 데이터 시트보기 (PDF) - MOSA ELECTRONICS

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MS6257

Gain and Attenuation Volume Controller IC One Set of Stereo Input, Low voltage Gain and Attenuation 15~-79dB

MOSA ELECTRONICS 

MOSA

MS6257

GAIN AND ATTENUATION VOLUME CONTROLLER IC

Example

Mute off

MSB

LSB

Data byte

Start 1 0 0 0 1 0 0 0 ACK 0 1 1 1 1 0 0 0 ACK Stop

MS6257 address

2-ch, Mute off

The initial condition is –79dB and mute on when power up. The first command must disable the mute function.

Set gain of 2 channel at 0dB

Start MS6257 Address ACK 1 1 1 0 0 0 0 0 ACK 1 1 0 1 0 0 0 0 ACK

2-ch, -10dB/step, 0dB

2-ch, -1dB/step, 0dB

1 1 0 0 0 0 0 0 ACK Stop

2-ch, +1dB/step, 0dB

Set gain of 2 channel at 6dB

The value of attenuation must be set zero when the volume from attenuation to gain.

Start MS6257 Address ACK 1 1 1 0 0 0 0 0 ACK 1 1 0 1 0 0 0 0 ACK

2-ch, -10dB/step, 0dB

2-ch, -1dB/step, 0dB

1 1 0 0 0 1 1 0 ACK Stop

2-ch, +1dB/step, 6dB

Set gain of 2 channel at -3dB

The value of gain must be set zero when the volume from gain to attenuation.

Start MS6257 Address ACK 1 1 0 0 0 0 0 0 ACK 1 1 1 0 0 0 0 0 ACK

2-ch, +1dB/step, 0dB

2-ch, -10dB/step, 0dB

1 1 0 1 0 0 1 1 ACK Stop

2-ch, -1dB/step, -3dB

Set attenuation of left channel at –33dB

Start MS6257 Address ACK 1 0 1 1 0 0 1 1 ACK 1 0 1 0 0 0 1 1 ACK Stop

L-ch, -10dB/step, -30dB

L-ch, -1dB/step, -3dB

REV 1

9

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