Specifications

TC35i AT Command Set
Confidential / Released
TC35i_ATC_V01.05 Page 214 of 278 04.08.2003
^SNFA: 32767
OK
at^snfs=4
OK
at^snfa=1
OK
at^snfa?
^SNFA: 1
OK
at^snfi?
^SNFI: 5,1
OK
at^snfi=5,45
OK
at^snfa?
^SNFA: 45
OK
7.25 Audio programming model
The following figure illustrates how the signal path can be adjusted with the AT command parameters
described in the Chapters 7.24 to 7.33.
The programming model is the same for all three interfaces, except for the parameters <outBbcGain>
and <inBbcGain> which cannot be modified if the digital audio interface is being used, since in this
case the DAC is switched off.
The parameters inBbcGain and inCalibrate can be set with AT^SNFI. All the other parameters are ad-
justed with AT^SNFO.
A
D
A
D
-¥...0dB
Speech coder
0dB; -6db, -12dB; -18dB
+0...42dB in 6dB steps
1k
1k
1k
1k
2,65V
10uF
+
sideTone
A
T parameters
outCalibrate[n]
n = 0...4
inCalibrate
inBbcGain
outBbcGain
Speech decoder
MIC2
Figure 1: AT audio programming model