Integration Manual
Table Of Contents
PVS8 Hardware Interface Overview
3.5 Analog Audio Interface
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PVS8_HIO_v03.000a Page 24 of 37 2013-04-08
Confidential / Preliminary
3.5 Analog Audio Interface
PVS8 has an analog audio interface with a balanced analog microphone input and a balanced
analog earpiece output. A supply voltage and an analog ground connection are provided at
dedicated lines.
PVS8 offers eight audio modes which can be selected with the AT^SNFS command. The elec-
trical characteristics of the voiceband part vary with the audio mode. For example, sending and
receiving amplification, sidetone paths, noise suppression etc. depend on the selected mode
and can in parts be altered with AT commands (except for mode 1).
When shipped from factory, all audio parameters of PVS8 are set to audio mode 1. This is the
default configuration optimised for the Votronic HH-SI-30.3/V1.1/0 handset and used for type
approving the Cinterion Wireless Modules reference configuration. Audio mode 1 has fix pa-
rameters which cannot be modified. To adjust the settings of the Votronic handset simply
change to another audio mode.
3.6 Digital Audio Interface
PVS8 supports a digital audio interface that can be employed either as pulse code modulation
or as inter IC sound interface. Operation of these interface variants is mutually exclusive.