Overview

The DA7218 is a high-performance, low power audio codec optimized for use in portable applications or wearable devices. It has single-ended headphone outputs with headphone detect for use in accessories, offering excellent left to right channel separation and common mode noise rejection.

DA7218 also has a stereo DAC to headphone output path and ultra-low power operating modes to support always-on audio detect applications. It 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 DA7217 has differential headphone outputs without headphone detect, and has been designed for use inside headset devices.

Benefits

  • Superior hi-fidelity audio performance for immersive record and playback
  • Sub 500µW 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
DA7218 Block Diagram
DA7218 Block Diagram
  • 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 biquad stages
  • Dedicated low-latency digital sideband filter with three programmable biquad stages
  • High-performance microphone to ADC record path with a 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 ultra-low power mode
  • Ability to differentiate between stereo and mono headsets
  • Automatic detection of headset removal and confirmation of headset insertion

Applications

  • Wired headsets
  • Wired headphones
  • Audio accessories
  • Portable gaming controller
  • Tablets and eReaders

Documentation

= Featured Documentation
Type Title Date
Datasheet
DA7218 Datasheet
PDF 3.18 MB
Product Brief
DA7218 Product Brief
PDF 1.47 MB
2 items

Design & Development

Software Downloads
Type Title Date
Software & Tools - Software
DA7218 SmartCanvas GUI Software
Log in to Download ZIP 61.57 MB
1 item
DA7218-EVAL Audio Codec Evaluation Board

DA7218-EVAL

Evaluation
Learn More

Ultra-Low Power Stereo Codec with Single-Ended Headphone Driver Evaluation Kit

The DA7218-EVAL evaluation board is designed to allow measurement and evaluation of the DA7218 ultra-low power stereo codec with single-ended headphone driver. The...

Featured Documents:
DA7218 Datasheet
DA7218 EVB User Guide

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Product Options

    Processing table
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    Buy / Sample
    Part Number
    DA7218-00U32
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    		32-WLCSP Tape & Reel 1 1.275
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