Tag:

ADC

ADC AK5572 v1.2 available

by nihtila July 5, 2020

written by nihtila

ADC AK5572 boards are available again, in slightly modified version 1.2. Despite a rather long list of changes there are no differences in performance and no major changes in functionality.

Note that there is also v1.3 now. It is the same as v1.2 except the PCB is green.

July 5, 2020 11 comments

Projects

ADC AK5572 – Very high performance audio AD-converter

by nihtila February 2, 2020

written by nihtila

Audio ADC with superb performance figures in a compact form factor. Suits audio recording kit, Hifi systems, or audio measurement applications.

Up to 768 kHz / 32-bit audio
Very high (measured) performance, typically:
- 121 dBA dynamic range / SNR (124 dBA in mono mode)
- -113 dB THD+N (-1 dBFS, 1 kHz)
- -117 dB THD (-8 dBFS, 1 kHz)
- -130 dB crosstalk (10 kHz)
Balanced differential input
Stereo or mono operation
I2S output; Master or Slave
HW configurable (supports I2C as well)
Assembled boards available

February 2, 2020 9 comments

Devices

USBHI – USB-interface for headset

by nihtila March 26, 2018

written by nihtila

Simple USB audio interface for headset

Based on PCM2912A reference design; single IC providing:
- USB-interface
- 2-channel DAC and headphone amplifier
- 1-channel ADC and microphone bias
TRRS jack for headset, or headphones and microphone can be wired out separately
- CTIA or OMTP type jack can be selected with jumper link
Not for higher end audio but perfectly adequate for gaming, podcasts, calls, etc.

March 26, 2018 4 comments