SBASAU4 March 2024 PCM6140-Q1
PRODUCTION DATA
This register page (shown in Table 8-84) consists of the programmable coefficients for mixer 1 to mixer 4 and the first-order IIR filter. All mixer coefficients are 32-bit, two’s complement numbers using a 1.31 number format. The value of 0x7FFFFFFF is equivalent to +1 (0-dB gain), the value 0x00000000 is equivalent to mute (zero data) and all values in between set the mixer attenuation computed using Equation 4. If the MSB is set to '1' then the attenuation remains the same but the signal phase is inverted. All IIR filter programmable coefficients are 32-bit, two’s complement numbers. For a successful coefficient register transaction, the host device must write and read all the four bytes starting with the most significant byte (BYT1) for a target coefficient register transaction. While using SPI for a coefficient register read transaction, the device gives out first byte as dummy read byte therefore the host must read five bytes which includes first byte as dummy read byte and the last four bytes corresponds to the coefficient register value starting with the most significant byte (BYT1).
ADDR | REGISTER | RESET | DESCRIPTION |
0x00 | PAGE[7:0] | 0x00 | Device Page Register |
0x08 | MIX1_CH1_BYT1[7:0] | 0x7F | Digital mixer 1, channel 1 coefficient byte[31:24] |
0x09 | MIX1_CH1_BYT2[7:0] | 0xFF | Digital mixer 1, channel 1 coefficient byte[23:16] |
0x0A | MIX1_CH1_BYT3[7:0] | 0xFF | Digital mixer 1, channel 1 coefficient byte[15:8] |
0x0B | MIX1_CH1_BYT4[7:0] | 0xFF | Digital mixer 1, channel 1 coefficient byte[7:0] |
0x0C | MIX1_CH2_BYT1[7:0] | 0x00 | Digital mixer 1, channel 2 coefficient byte[31:24] |
0x0D | MIX1_CH2_BYT2[7:0] | 0x00 | Digital mixer 1, channel 2 coefficient byte[23:16] |
0x0E | MIX1_CH2_BYT3[7:0] | 0x00 | Digital mixer 1, channel 2 coefficient byte[15:8] |
0x0F | MIX1_CH2_BYT4[7:0] | 0x00 | Digital mixer 1, channel 2 coefficient byte[7:0] |
0x10 | MIX1_CH3_BYT1[7:0] | 0x00 | Digital mixer 1, channel 3 coefficient byte[31:24] |
0x11 | MIX1_CH3_BYT2[7:0] | 0x00 | Digital mixer 1, channel 3 coefficient byte[23:16] |
0x12 | MIX1_CH3_BYT3[7:0] | 0x00 | Digital mixer 1, channel 3 coefficient byte[15:8] |
0x13 | MIX1_CH3_BYT4[7:0] | 0x00 | Digital mixer 1, channel 3 coefficient byte[7:0] |
0x14 | MIX1_CH4_BYT1[7:0] | 0x00 | Digital mixer 1, channel 4 coefficient byte[31:24] |
0x15 | MIX1_CH4_BYT2[7:0] | 0x00 | Digital mixer 1, channel 4 coefficient byte[23:16] |
0x16 | MIX1_CH4_BYT3[7:0] | 0x00 | Digital mixer 1, channel 4 coefficient byte[15:8] |
0x17 | MIX1_CH4_BYT4[7:0] | 0x00 | Digital mixer 1, channel 4 coefficient byte[7:0] |
0x18 | MIX2_CH1_BYT1[7:0] | 0x00 | Digital mixer 2, channel 1 coefficient byte[31:24] |
0x19 | MIX2_CH1_BYT2[7:0] | 0x00 | Digital mixer 2, channel 1 coefficient byte[23:16] |
0x1A | MIX2_CH1_BYT3[7:0] | 0x00 | Digital mixer 2, channel 1 coefficient byte[15:8] |
0x1B | MIX2_CH1_BYT4[7:0] | 0x00 | Digital mixer 2, channel 1 coefficient byte[7:0] |
0x1C | MIX2_CH2_BYT1[7:0] | 0x7F | Digital mixer 2, channel 2 coefficient byte[31:24] |
0x1D | MIX2_CH2_BYT2[7:0] | 0xFF | Digital mixer 2, channel 2 coefficient byte[23:16] |
0x1E | MIX2_CH2_BYT3[7:0] | 0xFF | Digital mixer 2, channel 2 coefficient byte[15:8] |
0x1F | MIX2_CH2_BYT4[7:0] | 0xFF | Digital mixer 2, channel 2 coefficient byte[7:0] |
0x20 | MIX2_CH3_BYT1[7:0] | 0x00 | Digital mixer 2, channel 3 coefficient byte[31:24] |
0x21 | MIX2_CH3_BYT2[7:0] | 0x00 | Digital mixer 2, channel 3 coefficient byte[23:16] |
0x22 | MIX2_CH3_BYT3[7:0] | 0x00 | Digital mixer 2, channel 3 coefficient byte[15:8] |
0x23 | MIX2_CH3_BYT4[7:0] | 0x00 | Digital mixer 2, channel 3 coefficient byte[7:0] |
0x24 | MIX2_CH4_BYT1[7:0] | 0x00 | Digital mixer 2, channel 4 coefficient byte[31:24] |
0x25 | MIX2_CH4_BYT2[7:0] | 0x00 | Digital mixer 2, channel 4 coefficient byte[23:16] |
0x26 | MIX2_CH4_BYT3[7:0] | 0x00 | Digital mixer 2, channel 4 coefficient byte[15:8] |
0x27 | MIX2_CH4_BYT4[7:0] | 0x00 | Digital mixer 2, channel 4 coefficient byte[7:0] |
0x28 | MIX3_CH1_BYT1[7:0] | 0x00 | Digital mixer 3, channel 1 coefficient byte[31:24] |
0x29 | MIX3_CH1_BYT2[7:0] | 0x00 | Digital mixer 3, channel 1 coefficient byte[23:16] |
0x2A | MIX3_CH1_BYT3[7:0] | 0x00 | Digital mixer 3, channel 1 coefficient byte[15:8] |
0x2B | MIX3_CH1_BYT4[7:0] | 0x00 | Digital mixer 3, channel 1 coefficient byte[7:0] |
0x2C | MIX3_CH2_BYT1[7:0] | 0x00 | Digital mixer 3, channel 2 coefficient byte[31:24] |
0x2D | MIX3_CH2_BYT2[7:0] | 0x00 | Digital mixer 3, channel 2 coefficient byte[23:16] |
0x2E | MIX3_CH2_BYT3[7:0] | 0x00 | Digital mixer 3, channel 2 coefficient byte[15:8] |
0x2F | MIX3_CH2_BYT4[7:0] | 0x00 | Digital mixer 3, channel 2 coefficient byte[7:0] |
0x30 | MIX3_CH3_BYT1[7:0] | 0x7F | Digital mixer 3, channel 3 coefficient byte[31:24] |
0x31 | MIX3_CH3_BYT2[7:0] | 0xFF | Digital mixer 3, channel 3 coefficient byte[23:16] |
0x32 | MIX3_CH3_BYT3[7:0] | 0xFF | Digital mixer 3, channel 3 coefficient byte[15:8] |
0x33 | MIX3_CH3_BYT4[7:0] | 0xFF | Digital mixer 3, channel 3 coefficient byte[7:0] |
0x34 | MIX3_CH4_BYT1[7:0] | 0x00 | Digital mixer 3, channel 4 coefficient byte[31:24] |
0x35 | MIX3_CH4_BYT2[7:0] | 0x00 | Digital mixer 3, channel 4 coefficient byte[23:16] |
0x36 | MIX3_CH4_BYT3[7:0] | 0x00 | Digital mixer 3, channel 4 coefficient byte[15:8] |
0x37 | MIX3_CH4_BYT4[7:0] | 0x00 | Digital mixer 3, channel 4 coefficient byte[7:0] |
0x38 | MIX4_CH1_BYT1[7:0] | 0x00 | Digital mixer 4, channel 1 coefficient byte[31:24] |
0x39 | MIX4_CH1_BYT2[7:0] | 0x00 | Digital mixer 4, channel 1 coefficient byte[23:16] |
0x3A | MIX4_CH1_BYT3[7:0] | 0x00 | Digital mixer 4, channel 1 coefficient byte[15:8] |
0x3B | MIX4_CH1_BYT4[7:0] | 0x00 | Digital mixer 4, channel 1 coefficient byte[7:0] |
0x3C | MIX4_CH2_BYT1[7:0] | 0x00 | Digital mixer 4, channel 2 coefficient byte[31:24] |
0x3D | MIX4_CH2_BYT2[7:0] | 0x00 | Digital mixer 4, channel 2 coefficient byte[23:16] |
0x3E | MIX4_CH2_BYT3[7:0] | 0x00 | Digital mixer 4, channel 2 coefficient byte[15:8] |
0x3F | MIX4_CH2_BYT4[7:0] | 0x00 | Digital mixer 4, channel 2 coefficient byte[7:0] |
0x40 | MIX4_CH3_BYT1[7:0] | 0x00 | Digital mixer 4, channel 3 coefficient byte[31:24] |
0x41 | MIX4_CH3_BYT2[7:0] | 0x00 | Digital mixer 4, channel 3 coefficient byte[23:16] |
0x42 | MIX4_CH3_BYT3[7:0] | 0x00 | Digital mixer 4, channel 3 coefficient byte[15:8] |
0x43 | MIX4_CH3_BYT4[7:0] | 0x00 | Digital mixer 4, channel 3 coefficient byte[7:0] |
0x44 | MIX4_CH4_BYT1[7:0] | 0x7F | Digital mixer 4, channel 4 coefficient byte[31:24] |
0x45 | MIX4_CH4_BYT2[7:0] | 0xFF | Digital mixer 4, channel 4 coefficient byte[23:16] |
0x46 | MIX4_CH4_BYT3[7:0] | 0xFF | Digital mixer 4, channel 4 coefficient byte[15:8] |
0x47 | MIX4_CH4_BYT4[7:0] | 0xFF | Digital mixer 4, channel 4 coefficient byte[7:0] |
0x48 | IIR_N0_BYT1[7:0] | 0x7F | Programmable first-order IIR, N0 coefficient byte[31:24] |
0x49 | IIR_N0_BYT2[7:0] | 0xFF | Programmable first-order IIR, N0 coefficient byte[23:16] |
0x4A | IIR_N0_BYT3[7:0] | 0xFF | Programmable first-order IIR, N0 coefficient byte[15:8] |
0x4B | IIR_N0_BYT4[7:0] | 0xFF | Programmable first-order IIR, N0 coefficient byte[7:0] |
0x4C | IIR_N1_BYT1[7:0] | 0x00 | Programmable first-order IIR, N1 coefficient byte[31:24] |
0x4D | IIR_N1_BYT2[7:0] | 0x00 | Programmable first-order IIR, N1 coefficient byte[23:16] |
0x4E | IIR_N1_BYT3[7:0] | 0x00 | Programmable first-order IIR, N1 coefficient byte[15:8] |
0x4F | IIR_N1_BYT4[7:0] | 0x00 | Programmable first-order IIR, N1 coefficient byte[7:0] |
0x50 | IIR_D1_BYT1[7:0] | 0x00 | Programmable first-order IIR, D1 coefficient byte[31:24] |
0x51 | IIR_D1_BYT2[7:0] | 0x00 | Programmable first-order IIR, D1 coefficient byte[23:16] |
0x52 | IIR_D1_BYT3[7:0] | 0x00 | Programmable first-order IIR, D1 coefficient byte[15:8] |
0x53 | IIR_D1_BYT4[7:0] | 0x00 | Programmable first-order IIR, D1 coefficient byte[7:0] |