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MS6257U Datasheet(PDF) 9 Page - List of Unclassifed Manufacturers |
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MS6257U Datasheet(HTML) 9 Page - List of Unclassifed Manufacturers |
9 / 11 page MOSA MS6257 GAIN AND ATTENUATION VOLUME CONTROLLER IC REV 1 9 www.mosanalog.com.tw Example Mute off Data byte 1 000 00 MSB 10 ACK Start 0111 00 10 MS6257 address 2-ch, Mute off LSB Stop 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 ACK Stop 11 00 00 00 2-ch, +1dB/step, 0dB ACK Start MS6257 Address ACK 1110 00 00 2-ch, -10dB/step, 0dB 110 1 0 0 00 ACK 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. ACK Stop 11 00 10 01 2-ch, +1dB/step, 6dB ACK Start MS6257 Address ACK 1110 00 00 2-ch, -10dB/step, 0dB 110 1 0 0 00 ACK 2-ch, -1dB/step, 0dB Set gain of 2 channel at -3dB The value of gain must be set zero when the volume from gain to attenuation. ACK Start MS6257 Address ACK 1100 00 00 2-ch, +1dB/step, 0dB 111 0 0 0 00 ACK 2-ch, -10dB/step, 0dB ACK Stop 11 01 11 00 2-ch, -1dB/step, -3dB Set attenuation of left channel at –33dB ACK Start MS6257 Address ACK Stop 1011 1 1 00 L-ch, -10dB/step, -30dB 1010 11 00 ACK L-ch, -1dB/step, -3dB |
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