Tag:

S/PDIF

W-Input S – I2C controlled version of W-Input

by nihtila December 28, 2020

written by nihtila

This is a software-controlled version of W-Input compact S/PDIF receiver board. It offers basically the same features but requires control and setup via I2C bus. Note that control software is not provided but is required to get any audio out.

Flexible digital input board combines I2S input and S/PDIF inputs
- One I2S input / passthrough
- One Toslink S/PDIF input
- One isolated coaxial S/PDIF input
- More inputs (Toslink / Coax / AES/EBU) can be added with addon board
I2S output (up to 192 kHz / 24-bit from S/PDIF)
High performance to match with high performance DACs
AK4115VQ S/PDIF receiver
Compact size at 70 mm x 50 mm
Can be used with W-DAC, W-DAC S, or any compatible I2S-input DAC
Wee DAC ecosystem offers numerous compatible boards
Assembled boards available

December 28, 2020 0 comment

Projects

SPDIF TX – I2S to S/PDIF converter

by nihtila February 3, 2020

written by nihtila

PCM I2S to S/PDIF digital audio converter to convert I2S serial audio data to S/PDIF with coaxial, Toslink, or AES/EBU connection.

Sample rate 48 kHz, 96 kHz, or 192 kHz
I2S input
- SPDIX TX is always I2S Master
- Supports ‘Dual Mono’ mode with 2x ADC AK5772 in Mono mode
Two S/PDIF output connector options; all are galvanically isolated
- Coaxial RCA and optical Toslink
- Balanced XLR AES/EBU
Assembled boards available

February 3, 2020 1 comment

Wee DAC

Wee DAC addons – XLR output and extra S/PDIF inputs

by nihtila November 5, 2019

written by nihtila

There are several addon boards for Wee DAC to expand feature set:

W-Output XLR – Balanced XLR output for W-DAC
W-Output XLR Mute – Balanced XLR output with Mute relay for W-DAC
W-Input+ Combo – Extra Coaxial and Toslink S/PDIF inputs for W-Input
W-Input+ Combo XLR – Extra AES/EBU XLR and Toslink S/PDIF inputs for W-Input
W-Input+ Combo BNC – Extra AES/EBU XLR and BNC S/PDIF inputs for W-Input

November 5, 2019 3 comments

Wee DAC

W-Input – Compact digital input board

by nihtila November 5, 2019

written by nihtila

Flexible digital input board combines I2S input and S/PDIF inputs
- One I2S input / passthrough
- One Toslink S/PDIF input
- One isolated coaxial S/PDIF input
- More inputs (Toslink / Coax / AES/EBU) can be added with addon board
I2S output (up to 192 kHz / 24-bit from S/PDIF)
High performance to match with high performance DACs
AK4115VQ S/PDIF receiver
Compact size at 70 mm x 50 mm
Can be used with W-DAC or any compatible I2S-input DAC
Wee DAC ecosystem offers numerous compatible boards
- S/PDIF input addon boards (Coax, Toslink, AES/EBU)
- DAC with balanced XLR addon
- Baseboards with or without power supply
Assembled boards available

November 5, 2019 4 comments

H-DAC Obsolete

H-DAC – High performance 192 kHz / 24-bit DAC with addon options

by nihtila January 15, 2017

written by nihtila

Very high performance; measurement results with coaxial S/PDIF input:
- Output level: 2.0 Vrms
- Dynamic range / SNR: 122 dB (A-weighted)
- THD+N ratio: -103 dB (0 dBFS/1 kHz signal, 48 kHz sample rate)
- Crosstalk: -128 dB at 1 kHz, -112 dB at 10 kHz
Supports S/PDIF, Toslink, USB, and external I2S inputs
Unbalanced outputs (RCA) on board, balanced (XLR) addon available
Hardware-controlled – no need for microcontroller (but one can be added with addon)
Can be powered by AC or DC supply
Addon available to transform H-DAC into preamplifier/headphone amp
New output stage addons can be easily designed to experiment with components and circuits
CS8416 S/PDIF-receiver, PCM1794A DAC, LM4562 opamps (or any SO-8 dual opamp), PCM2707C USB-audio, LM2940/LM2990, TPS73633, TPS79133, and REG103 regulators

H-DAC is a high-performance 192 kHz / 24-bit capable DAC board with TI PCM1794A DAC. The board has two coaxial S/PDIF, two Toslink, and one I2S input that can be either on-board 48 kHz / 16-bit USB receiver or an external I2S-device. Input selection and settings are controlled with jumper links that can be replaced by mechanical switches or microcontroller addon board.

January 15, 2017 6 comments