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7.5. USB Connectors (Internal)
The following USB2.0 ports are available on Internal pinrows:
USB2.0 Port 4 and 5 - the internal FRONTPNL connector (J23) supplies USB2.0 Port 4 and 5. See Chapter 7.9 Front
Panel Connector (FRONTPNL) (J23).
USB2.0 Port 7 - the internal mPCIe connectors (J27) supplies USB2.0 Port 7. See Chapter 8 Slot Connectors
(miniPCIe).
7.6. Speaker Connector (J37)
The Speaker audio-out interface is available through the connector J37 (4-pins). These outputs are shared with the
speaker audio jack connector (J2) (green). With up to 100 dB Signal-to-Noise Ratio (SNR).
Speaker Connector Pinout
Header
7.7. Microphone Connector (J13)
The microphone audio-in interface is available through the connector J13 (4-pins). With up to 100 dB Signal-to-Noise
Ratio (SNR).
Microphone Connector Pinout
Header
7.8. SPDIF-Out (J14)
The digital audio interface (electrical SPDIF-Out) is available through the connector J14 (2-pins) and can be used to
implement 6 (5.1) Channel High Definition Audio.
The circuit is based on a high fidelity six channel HD audio codec that is compatible with the Intel HD Audio
specification and supports a stereo 24 bit resolution and up to 192 kHz sample rate for DACs/ADCs. The Signal-to-
Noise Ratio (SNR) is up to 90 dB.
16 bit/ 20 bit/ 24 bit SPDIF TX Outputs supporting 48 KHz/ 96 KHz/ 44.1 KHz/ 88.2 KHz sample rate.
SPDIF-Out Connector Pinout
Header
1
www.kontron.com
Pin
4
3
2
1
Pin
4
3
2
1
Pin
2
1
Signal
FRONT_R_HEADER
GND
FRONT_L-HEADER
GND
Signal
MIC1_R_HEADER
GND
MIC1_L_HEADER
GND
Signal
GND
SPDIF_OUT
mITX-BDW-U – User Guide, Rev. 1.6
Type
AO
PWR
AO
PWR
Type
AI
PWR
AI
PWR
Type
PWR
O-3.3
// 35
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