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DA7217

Ultra low power stereo codec with differential headphone driver

da7217_block_diagram.jpg

High performance, low-power audio codec

DA7217 is a high-performance, low-power audio codec optimized for use in headsets or wearable devices. It has differential headphone outputs for use inside headset devices, offering excellent left to right channel separation and common mode noise rejection. DA7217 also has a stereo DAC to headphone output path and ultra-low power operating modes to support always-on audio detect applications.

DA7217 contains two analog microphone input paths, or 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 detect for use in accessories.

Lifecycle status

● Active

Features

High performance stereo DAC to headphone playback path with 110 dB dynamic range

4 mW stereo playback power consumption

DAC digital filters with audio and voice mode options, five-band equalizer and five programmable biquad stages

Dedicated low-latency digital sideband filter with three programmable biquad stages

High performance microphone to ADC record path with 105 dB dynamic range

2.5 mW stereo record power consumption

ADC digital filters with audio and voice mode options

500 µW 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 2.5 µA

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 32 kHz

Benefits

Superior hi-fidelity audio performance for immersive record and playback

Sub 500 µW always-on power extends battery life for audio activity detection

Flexible programming filtering (sideband, voice) enhances voice and audio playback

Mixed sample rate support for wideband applications

Supports the latest generation of low power analog and digital microphones

Small package footprint with an optimized ballout conducive to low cost PCB manufacturing

Applications

Hearables

Wireless and wired headsets 

Wireless and wired headphones

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Product Briefs and Summaries
Name Date Version
DA7217 Product Brief (1.46 MB)
DA7217 Product Brief CN (939.62 KB)
Datasheets
Name Date Version
DA7217 Datasheet (1.66 MB)
Software Resources
Name Date Version
DA7217 SmartCanvas GUI Software (59.03 MB) (Registered users only) 16/07/2020 1.1.2.16
Archives
Name Date Version
DA7217/8 Linux Application and Release Note (390.71 KB)

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