TSDP1808 Overview
The TSDP18xx is an ultra low-power, high-performance, 8 channel PDM to Linear PCM converter. It supports Digital MEMS Microphone (DMIC) over sample rates up to 6.144MHz; and output sampling rates of 8KHz up to 384KHz enabling support for Ultrasonic capable DMICs.
TSDP1808 Key Features
- High-Fidelity Octal PDM to Linear PCM Converter
- Internal processing takes place at the DMIC clock rate
- > 142dB SNR / DNR / THD+N Level (20Hz ~ 20kHz)
- Output Fs supports 8kHz up to 384kHz
- Configurable DMIC fixed output clock, based on Fs of supplied LRCLK and specified oversampling mode
- Configurable downsampling rates ranging from 8 to 256 depending on configuration of OS_MODE3, OS_MODE_2, & OS_MODE1 pins
- Configurable I2S / LJ / TDM Output Format Engine
- Supports single-edge clocked, double-edge clocked PDM DMICs
- Supports either 2 Channel I2S or LJ output format or TDM format capable of supporting from 2 up to 8 channels
- Supports configurable word lengths of 32-bits, 24-bits, or 16-bits