Specifications

CINTERION
®
BGS12 Hardware Interface Description
Contents
85 of 109
Page
BGS12 HID_V00.915
Confidential / Released
2019
-
01
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07
5.6.5 Voiceband Transmit Path
Test conditions:
•
The values specified below were tested to 0.95kHz and 0dB gain stage, unless otherwise
stated.
Table 32: Voiceband transmit path
Parameter Min Typ Max Unit Test condition/Remark
Input voltage (peak to peak)
MICP to MICN
0.3 Vrms
(@0dB gain)
Input amplifier gain in 6dB
steps (inBbcGain)
1
0 24 dB Set with AT^SNFI
Fine scaling by DSP
(inCalibrate)
-13 16 dB Set with AT^SNFI
Input impedance MIC 2
k
Microphone supply voltage 1.8 V
Microphone supply current 0.5 mA