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PA5750 Fiches technique(PDF) 14 Page - Protek Devices |
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PA5750 Fiches technique(HTML) 14 Page - Protek Devices |
14 / 30 page PA5750 Low Power Stereo Audio CODEC With Speaker and Headphone Amplifier. ANALOG PRODUCTS DIVISION 561 E Elliot Road.#175 Chandler, AZ 85225 Tel: (480)539-2900. Fax: (480)632-1715. 14 www.protekanalog.com Not for use in any life support systems. 95230 Rev.0. 04/09 6.2.5. Register13 – ADC Control 5, Default 0000 0110 Bit Name Bit Description ADC_FsMode 5 0 – single speed mode (default) 1 – double speed mode. Master mode ADC MCLK to sampling frequency ratio: ADC_FsRatio 4:0 00000 -128 00001 – 192 00010 – 256 00011 – 384 00100 – 512 00101 – 576 00110 – 768 (default) 00111 – 1024 01000 – 1152 01001 – 1408 01010 – 1536 01011 – 2112 01100 – 2304 Other – Reserved. 10000 - 125 10001 - 136 10010 - 250 10011 - 272 10100 - 375 10101 - 500 10110 - 544 10111 - 750 11000 - 1000 11001 - 1088 11010 - 1496 11011 - 1500 6.2.6. Register14 – ADC Control 6, Default 0011 0000 Bit Name Bit Description ADC_invL 7 0 – normal (default). 1 – left channel polarity inverted. ADC_invR 6 0 – normal (default). 1 – right channel polarity inverted. ADC_HP_L 5 0 – disable ADC left channel high pass filter. 1 – enable ADC left channel high pass filter (default). ADC_HP_R 4 0 – disable ADC right channel high pass filter. 1 – enable ADC right channel high pass filter (default). 6.2.7. Register15 – ADC Control 7, Default 0011 0000 Bit Name Bit Description ADCRampRate 7:6 00 – 0.5dB per 4 LRCK digital volume control ramp rate (default). 01 – 0.5dB per 8 LRCK digital volume control ramp rate. 10 – 0.5dB per 16 LRCK digital volume control ramp rate. 11 – 0.5dB per 32 LRCK digital volume control ramp rate. ADCSoftRamp 5 0 – disable digital volume control soft ramp. 1 – enable digital volume control soft ramp (default) ADCZeroCrs 4 0 – disable digital volume control at zero crossing. 1 – enable digital volume control at zero crossing (default). ADCLeR 3 0 – normal (default) 1 – both channel gain control is set by ADC left gain control register ADCMute 2 0 – normal (default). 1 – mute ADC digital output. 6.2.8. Register16 – ADC Control 8, Default 1100 0000 Bit Name Bit Description LADCVOL 7:0 Digital volume control attenuates the signal in 0.5dB increments from 0 to -96dB 00000000 – 0dB. 00000001 – -0.5dB 00000010 - -1dB ………………. 11000000 - -96dB (default). |
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