Renesas / Dialog DA7217 High-Performance Low-Power Audio Codec
Renesas / Dialog DA7217 High-Performance Low-Power Audio Codec is a device optimized for use in headsets or wearable devices. This device has differential headphone outputs for use inside headset devices, offering excellent left-to-right channel separation and common mode noise rejection. The DA7217 also has a stereo DAC to headphone output path and ultra-low-power operating modes to support always-on audio detection applications. DA7217 contains two analog microphone input paths, up to four digital microphone input paths, or a combination of both. The other chip in this family, the DA7218, has single-ended headphone outputs and has been designed with headphone detection for use in accessories.
Features
- High-performance stereo DAC to headphone playback path with 110dB dynamic range
- 4mW stereo playback power consumption
- DAC digital filters with audio and voice mode options, five-band equalizer and five programmable bi-quad stages
- Dedicated low-latency digital sideband filter with three programmable bi-quad stages
- High-performance microphone to ADC record path with 105dB dynamic range
- 2.5mW stereo record power consumption
- ADC digital filters with audio and voice mode options
- 500μW always-on record mode with automatic level detection
- Hybrid analog/digital automatic level control to dynamically control the record level
- Shutdown mode offering current consumption during standby of 2.5μA
- Two low-noise microphone bias regulators with programmable output voltage and ultralow-power mode
- A high efficiency two-level, true-ground charge pump for generating class-G headphone supplies
- Voice mode filtering up to 32kHz
Applications
- Hearables
- Wireless and wired headphones
Block Diagram
Associated Tool
Renesas / Dialog DA7217-EVAL Codec Evaluation Board
Designed to allow measurement and evaluation of the DA7217, a low power audio codec.
Published: 2017-03-28
| Updated: 2023-05-08