
Dialog Semiconductor
General Description
DA7400 is a high-performance, ultra-low-power, stereo hi-fi codec for USB-C™ and Bluetooth® headphone (HP), headset, or hearable applications.
With high-performance playback and record paths, DA7400 is designed for high dynamic range and minimum latency. An integrated, programmable, digital signal processor performs equalization, limiting, mixing, and gain control.
KEY FEATUREs
■ Stereo analog microphone or line input path
with 95 dB dynamic range
■ Stereo differential headphone path with 115
dB dynamic range
■ JAS Hi-Res AUDIO compatible
■ 4-wire digital audio interface with support for
I2S, TDM, and other common audio formats:
□ Up to 32 bits per channel
□ Up to 384 kHz sample rate support
■ Two stereo PDM inputs for digital
microphones
■ Integrated low-noise microphone bias
■ Flexible DSP supporting mixing, gain,
equalization, sidetone, and automatic gain
control
■ Bypassable asynchronous sample-rate
converters
■ Programmable fractional-N phase-locked loop
(PLL)
■ I2C compatible control interface
■ WLCSP 32 ball, 3.29 mm x 1.75 mm, 0.4 mm
pitch
APPLICATIONs
■ Headphones and headsets
■ Internet of Things (IoT)
■ Hearables
■ Gaming and virtual reality (VR)