ADAU7118
RECOMMENDED FOR NEW DESIGNS8 Channel, PDM to I2S/TDM Converter
- Part Models
- 2
- 1ku List Price
- Starting From $2.97
Part Details
- 8 channels of PDM audio inputs from digital microphones
- 16×, 32×, or 64× decimation ratio of PDM to PCM audio data
- 24-bit resolution to support high sound pressure level (SPL) microphones
- 126 dB A-weighted SNR
- 4 kHz to 192 kHz output sampling rate
- Bit clock rates of 64×, 128×, 192×, 256×, 384×, or 512× the output sampling rate
- Dual output PDM clocks
- Automatic PDM clock generation
- Automatic power-down when BCLK removed
- Selectable I2C control or hardware mode operation
- 1.2 mA DVDD operating current for 8 channels at 48 kHz frequency sampling rate and 1.8 V supply
- Slave I2S or TDM output interface
- Up to TDM-16 supported
- Configurable TDM slot routing and sizes
- I/O supply voltage from 1.70 V to 3.63 V
- DVDD supply voltage from 1.10 V to 1.98 V
- <5 μA typical DVDD shutdown current
- 16-lead, 3 mm × 3 mm, 0.50 mm pitch LFCSP
- Power-on reset
The ADAU7118 converts four stereo pulse density modulation (PDM) bitstreams into one pulse code modulation (PCM) output stream. The source for the PDM data can be eight microphones or other PDM sources. The PCM audio data is output on a serial audio interface port in either inter-IC serial (I2S) or time domain multiplexed (TDM) format.
The ADAU7118 is specified over the commercial temperature range (−40°C to +85°C). The ADAU7118 is available in a 16-lead, 3 mm × 3 mm, 0.40 mm pitch, lead frame chip scale package (LFCSP).
Note that throughout this data sheet, multifunction pins, such as ADDR/CONFIG, are referred to either by the entire pin name or by a single function of the pin, for example, ADDR, when only that function is relevant.
Applications
- Microphone arrays
- Mobile computing
- Portable electronics
- Consumer electronics
- Professional electronics
Documentation
Data Sheet 1
User Guide 1
Device Drivers 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADAU7118ACPZRL | 16-Lead LFCSP (3mm x 3mm w/ EP) | ||
| ADAU7118ACPZRL7 | 16-Lead LFCSP (3mm x 3mm w/ EP) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
ADAU7118 Automated Register Window Builder XML File
Automated Register Window Builder, Version 3.2.1
SigmaStudio®
Graphical development tool for programming, development, and tuning software for ADI DSP audio processors and A2B® transceivers.
View DetailsEvaluation Software 0
Evaluation Kits
ADAU7118 Evaluation Board