4 speaker connector, Ktt20/pitx user's guide, 1 speaker hardware features – Kontron KTT20-pITX User Manual
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Audio Interface
KTT20/pITX User's Guide
11.4 Speaker Connector
The audio codec also supports a speaker driver interface. With both speaker drivers it is possible to realize a
passive stereo loudspeaker system. The drivers have a thermal shutdown feature. If the junction tempe-
rature exceeds approximately 150
0
C then the output will be disabled. The speaker interface is available
through the connector J1801 (4 pins).
Header
Pin
Signal
Description
Type
1
SPK_R#
Speaker right (negative)
AO
2
SPK_R
Speaker right (positive)
AO
3
SPK_L#
Speaker left (negative)
AO
4
SPK_L
Speaker left (positive)
AO
11.4.1 Speaker Hardware Features
Parameter
Values
Units
Maximal output power
1 @ 8Ω
W
Output signal-to-noise ratio
97
db
Speaker mode
Class D