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CS43L22 数据表(PDF) 21 Page - Cirrus Logic |
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CS43L22 数据表(HTML) 21 Page - Cirrus Logic |
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21 / 66 page  DS792F2 21 CS43L22 Confidential Draft 3/4/10 4.2 DSP Engine Referenced Control Register Location DSP DEEMPH ............................. PCMxMUTE ........................ PCMxVOL[6:0] .................... INV_PCMx........................... PCMxSWAP[1:0] ................. MSTxVOL[7:0]..................... MSTxMUTE......................... DIGSFT ............................... DIGZC ................................. PLYBCKB=A........................ TC_EN................................. BASS_CF[1:0] ..................... TREB_CF[1:0] ..................... BASS[3:0]............................ TREB[3:0]............................ LIMIT ................................... LIMSRDIS ........................... LIMZCDIS............................ LMAX[2:0]............................ CUSH[2:0] ........................... LIMARATE[7:0].................... LIMRRATE[7:0] ................... “HP/Speaker De-Emphasis” on page 44 “PCM Channel x Mute” on page 47 “PCM Channel x Volume” on page 47 “Invert PCM Signal Polarity” on page 43 “PCM Channel Swap” on page 52 “Master Volume Control” on page 51 “Master Playback Mute” on page 43 “Digital Soft Ramp” on page 44 “Digital Zero Cross” on page 45 “Playback Volume Setting B=A” on page 43 “Tone Control Enable” on page 50 “Bass Corner Frequency” on page 50 “Treble Corner Frequency” on page 50 “Bass Gain” on page 51 “Treble Gain” on page 50 “Peak Detect and Limiter” on page 54 “Limiter Soft Ramp Disable” on page 53 “Limiter Zero Cross Disable” on page 54 “Limiter Maximum Threshold” on page 53 “Limiter Cushion Threshold” on page 53 “Limiter Attack Rate” on page 55 “Limiter Release Rate” on page 54 Beep Generator Bass/ Treble/ Control Σ VOL Peak Detect Limiter Chnl Vol. Settings Demph VOL VOL +12dB/-102dB 0.5dB steps MSTAVOL[7:0] MSTBVOL[7:0] +12dB/-51.5dB 0.5dB steps PCMAMUTE PCMBMUTE PCMAVOL[6:0] PCMBVOL[6:0] 0dB/-50dB 2.0dB steps BPVOL[4:0] DEEMPH TC_EN BASS_CF[1:0] TREB_CF[1:0] BASS[3:0] TREB[3:0] +12.0dB/-10.5dB 1.5dB steps Fixed Function DSP MSTAMUTE MSTBMUTE DIGSFT DIGZC PLYBCKB=A LIMARATE[7:0] LIMRRATE[7:0] LMAX[2:0] CUSH[2:0] LIMSRDIS LIMZCDIS LIMIT PCMASWAP[1:0] PCMBSWAP[1:0] OFFTIME[2:0] ONTIME[3:0] FREQ[3:0] BEEP[1:0] BEEPMIXDIS Channel Swap INV_PCMA INV_PCMB PWM Modulator DAC Figure 5. DSP Engine Signal Flow |
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