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MS6257 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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1 / 11 page MOSA MS6257 GAIN AND ATTENUATION VOLUME CONTROLLER IC REV 1 1 www.mosanalog.com.tw Gain and Attenuation Volume Controller IC One Set of Stereo Input, Low voltage Gain and Attenuation 15~-79dB FEATURES ‧Operation range: 2.7V~5.5V ‧Low power consumption ‧Gain/Attenuation: 15dB to –79dB at 1dB/step ‧Housed in 8 pin SOP package ‧I 2C interface APPLICATIONS ‧Multimedia system ‧Hi-Fi audio system ‧MP3, PDA ‧Cross-reference PT2257, PT2259 DESCRIPTION The MS6257 is the stereo audio volume controller IC. It uses CMOS technology specially for the low voltage application with low noise, rail-to-rail output. The MS6257 provide an I 2C control interface with gain / attenuation range of 15dB to –79dB, 1dB/step. The initial condition is set to be maximum attenuation –79dB and mute on mode when the power is up. PIN CONFIGURATION Symbol Pin Description L-IN 1 Left channel input L-OUT 2 Left channel output VSS 3 Ground SDA 4 I 2C data input SCL 5 I 2C clock input VDD 6 Positive supply voltage R-OUT 7 Right channel output R-IN 8 Right channel input 7 6 5 8 2 3 4 1 MS6257 R-IN R-OUT VDD SCL L-IN L-OUT VSS SDA BLOCK DIAGRAM R-IN REF SDA SCL R-OUT L-OUT I2C Interface -10dB/STEP -1dB/STEP 1dB/STEP Serial Bus Decoder and Latches Reference Circuit 1dB/STEP -1dB/STEP -10dB/STEP L-IN |
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