JAJSHC8B May 2019 – October 2019 TLV320ADC3140
PRODUCTION DATA.
デバイスごとのパッケージ図は、PDF版データシートをご参照ください。
This register is the digital signal processor (DSP) configuration register 0.
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Reserved | DECI_FILT[1:0] | CH_SUM[1:0] | HPF_SEL[1:0] | ||||
R-0h | R/W-0h | R/W-0h | R/W-1h |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
7-6 | Reserved | R | 0h | Reserved |
5-4 | DECI_FILT[1:0] | R/W | 0h | Decimation filter response.
0d = Linear phase 1d = Low latency 2d = Ultra-low latency 3d = Reserved |
3-2 | CH_SUM[1:0] | R/W | 0h | Channel summation mode for higher SNR
0d = Channel summation mode is disabled 1d = 2-channel summation mode is enabled to generate a (CH1 + CH2) / 2 and a (CH3 + CH4) / 2 output 2d = 4-channel summation mode is enabled to generate a (CH1 + CH2 + CH3 + CH4) / 4 output 3d = Reserved |
1-0 | HPF_SEL[1:0] | R/W | 1h | High-pass filter (HPF) selection.
0d = Programmable first-order IIR filter for a custom HPF with default coefficient values in P4_R72 to P4_R83 set as the all-pass filter 1d = HPF with a cutoff of 0.00025 × fS (12 Hz at fS = 48 kHz) is selected 2d = HPF with a cutoff of 0.002 × fS (96 Hz at fS = 48 kHz) is selected 3d = HPF with a cutoff of 0.008 × fS (384 Hz at fS = 48 kHz) is selected |