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STA321 数据表(PDF) 120 Page - STMicroelectronics |
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STA321 数据表(HTML) 120 Page - STMicroelectronics |
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120 / 157 page ![]() Register description STA321 120/157 Doc ID 15351 Rev 3 VOLCFG Address: 0xA0 Type: RW Reset: 0xF5 Description: The register sets up the soft volume control MVOL Master volume control Address: 0xA1 Type: RW Reset: 0x00 Description: 76 54 32 10 SVOL_ON3 SVOL_ON2 SVOL_ON1 SVOL_ON0 TIM_SVOL [7] SVOL_ON3 0: volume on channel 3 is updated immediately 1: volume on channel 3 is updated gradually with a ramp [6] SVOL_ON2 0: volume on channel 2 is updated immediately 1: volume on channel 2 is updated gradually with a ramp [5] SVOL_ON1 0: volume on channel 1 is updated immediately 1: volume on channel 1 is updated gradually with a ramp [4] SVOL_ON0 0: volume on channel 0 is updated immediately 1: volume on channel 0 is updated gradually with a ramp [3:0] TIM_SVOL Set the volume ramp; each volume step (0.5 dB) takes (2TIM_SVOL / fS) s 76 54 32 10 MVOL [7:0] MVOL Master volume from 0 dB to -127.5 dB in 0.5 dB steps (volume = MVOL * 0.5 dB) |
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