Specifications

CINTERION
®
BGS12 Hardware Interface Description
Contents
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BGS12 HID_V00.915
Confidential / Released
2019
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Figure 22: Differential Microphone connection
Figure 23: Line Input
3.11.2 Loudspeaker Output
BGS12 provides a differential loudspeaker output EPP/EPN. If it is used as line output (see
Figure 25), the application should provide a capacitor decoupled differential input to elimi-
nate GSM humming. A first order low pass filter above 4 kHz may be useful to improve the out-
of-band signal attenuation. A single ended connection to a speaker or a line input should not
be realized.
The following figures show the typical output configurations.