TDK InvenSense ICS-52000 Microphone with TDM Digital Output
TDK InvenSense ICS‐52000 is a low-noise digital TDM output bottom port microphone in a small 4mm × 3mm × 1mm surface‐mount package. The device consists of a MEMS sensor, signal conditioning, an analog‐to‐digital converter, decimation and anti‐aliasing filters, power management, and an industry standard 24‐bit TDM interface. The TDM interface allows an array of up to 16 of the ICS‐52000 microphones to connect directly to digital processors, such as DSPs and microcontrollers, without the need for an audio codec in the system. All microphones in an array sample their acoustic signals synchronously, enabling precise array processing.
The ICS‐52000 features a high SNR of 65dBA and a wideband frequency response. The sensitivity tolerance is ±1dB enabling high‐performance microphone arrays without the need for system calibration. The ICS-52000 has two power states: normal operation, and standby mode. The microphone has a soft unmute feature to prevent pops on power-up. From the time that the ICS-52000 starts to output data, the volume will ramp up to the full-scale output level over 256WS clock cycles. With a 48kHz sampling rate, this unmute sequence will take about 5.3ms.
Features
- Digital TDM Interface with High Precision 24-bit Data
- Supports TDM arrays of up to 16 synchronously sampled channels
- High 65dBA SNR
- -26dB FS Sensitivity
- ±1dB Sensitivity Tolerance
- Wide Frequency Response: 50Hz to 20kHz
- Low Current Consumption: 1.0mA
- High power Supply Rejection: -89dB FS
- 117dB SPL Acoustic Overload Point
- Small 4mm x 3mm x 1mm SMT Package
- Compatible with Sn/Pb and Pb-Free Solder Processes
- RoHS/WEEE Compliant
Applications
- Speech Recognition Arrays
- Smart Televisions
- Teleconferencing Systems
- Gaming Consoles
- Security Systems
- Microphone Arrays
Functional Block Diagram
Published: 2017-06-29
| Updated: 2022-03-10