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SSM2529ACBZ-R7 Scheda tecnica(PDF) 28 Page - Analog Devices |
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SSM2529ACBZ-R7 Scheda tecnica(HTML) 28 Page - Analog Devices |
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28 / 52 page ![]() SSM2529 Data Sheet Rev. 0 | Page 28 of 52 Input Sample Frequency, fS (kHz) Setting 0 b000 Setting 1 b001 Setting 2 b010 Setting 3 b011 Setting 4 b100 Setting 5 b101 Setting 6 b110 thru b111 48 Ratio N/A 128 f S 256 f S 384 f S 512 f S 768 f S Reserved MCLK 6.144 MHz 12.288 MHz 18.432 MHz 24.576 MHz 36.864 MHz 88.2 Ratio N/A 64 f S 128 f S 192 f S 256 f S 384 f S Reserved MCLK 5.6448 MHz 11.2896 MHz 16.9344 MHz 22.5792 MHz 33.8688 MHz 96 Ratio N/A 64 f S 128 f S 192 f S 256 f S 384 f S Reserved MCLK 6.144 MHz 12.288 MHz 18.432 MHz 24.576 MHz 36.864 MHz When using MCS = 0/64fS mode, the chip automatically operates in low power mode. EDGE SPEED AND CLOCKING CONTROL (SYS_CTRL) REGISTER Table 49. Address: 0x01, Reset: 0x20, Name: SYS_CTRL Bits Bit Name Settings Description Reset Access 7 PDM_MODE PDM input enable 0x0 RW 0 Disable PDM input 1 Enable PDM input 6 PDM_FS PDM input sample rate 0x0 RW 0 About 3 MHz sample rate 1 About 6 MHz sample rate 5 PDB_ADC ADC power down 0x1 RW 0 Power down 1 Power on 4 BCLK_RATE BCLK cycles per channel frame 0x0 RW 0 32 cycles per channel 1 16 cycles per channel 3 BCLK_GEN Generate BCLK internally 0x0 RW 0 Disabled 1 Enabled [2:1] EDGE Edge rate control 0x0 RW 00 Normal operation 01 Low EMI mode operation 0 ASR Auto sample rate 0x0 RW 0 Sample rate setting determined by MCS register (Register 0x00, Bits[3:1]) 1 Automatic sample rate detection SERIAL AUDIO INTERFACE AND SAMPLE RATE CONTROL (SAI_FMT1) REGISTER Table 50. Address: 0x02, Reset: 0x02, Name: SAI_FMT1 Bits Bit Name Settings Description Reset Access [7:6] SDATA_FMT Serial data format 0x0 RW 00 I2S, BCLK delay by 1 01 Left justified 10 Right justified, 24-bit data 11 Right justified, 16-bit data [5:3] SAI Serial audio interface format 0x0 RW 000 Stereo I2S, left justified, right justified 001 TDM2 010 TDM4 011 TDM8 100 TDM16 101 Mono PCM 110 Reserved 111 Reserved |
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