User's Manual

PCS3_HD_v01.000-03
Confidential / Preliminary
Page 44 of 101
2013-10-21
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PCS3 Hardware Interface Description
3.8 Analog Audio Interface
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Line output device
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100nF
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MICP
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~
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-1
MICN
Module
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100nF
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Figure 14: Line input
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Using the line input configuration the output level of the ground related balanced source should
be as high as possible to achieve the best SNR. Since the input impedance of PCS3 is quite
high at low gains, the coupling capacitances may be smaller.
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3.8.2 Loudspeaker Output
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PCS3 provides a differential loudspeaker output EPP/EPN. If it is used as line output, the ap-
plication should provide a capacitor decoupled differential input to eliminate humming. A single
ended connection to a speaker or a line input is strongly not recommended.
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The following figures show the typical output configurations.
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EPP
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Module
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EPN
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Figure 15: Differential loudspeaker connection
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Module
EPP
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+
_
EPN
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Figure 16: Line output connection