Kontron KTT20-pITX - Manual (Page 26)

KTD-S0044-G Page 22 Audio Interface
KTT20/pITX User's Guide
11 Audio Interface
The SoC supports an Inter-IC Sound (I 2 S) codec with 24 bit resolution and 96 kHz sample rate (the
maximum rate of 96 kHz only unidirectional). The analogue-to-digital part of the codec uses 24 bit, 128x
oversampled sigma-delta ADCs. The digital-to-analogue part contains two 24 bit sigma-delta DACs. The
interface includes LINE OUT, LINE IN, MICROPHONE IN and a digital S/PDIF output.
11.1 Audio Hardware Features
Parameter Values Units
Output resolution (LINE OUT, S/PDIF) 16/20/24 bit
Output sample rate (LINE OUT, S/PDIF) 44.1/48/96 kHz
Output signal-to-noise ratio (LINE OUT) 96 dB
Input resolution (LINE IN) 16/20/24 bit
Input sample rate (LINE IN) 44.1/48/96 kHz
Input signal-to-noise ratio (LINE IN) 92 dB
11.2 Analog Connector
The analog audio interface uses the connector J1800 (6 pins). A prototype adapter cable (open ended) is
deliverable (KAB-SOUND-CMP-2, part number 96063-0000-00-1).
Header Pin Signal Description Type
1 LINE_IN_L Line input left AI
2 MIC_IN Microphone input AI
3 LINE_IN_R Line input right AI
4 LINE_OUT_L Line output left AO
5 GND Ground PWR
6 LINE_OUT_R Line output right AO
11.3 Digital Connector (S/PDIF)
The digital audio output is available through the connector J1802 (2 pins).
Header Pin Signal Description Type
1 SPDIF_OUT S/PDIF output O-33
1 2 GND Ground PWR