EGS5 Hardware Interface Description
5.7 Electrical Characteristics of the Voiceband Part
104
EGS5_HD_v02.004
Page 100 of 123
2012-02-09
Confidential / Released
5.7.4
Voiceband Receive Path
Test conditions:
•
The values specified below were tested to 1kHz using audio mode 5.
•
EPP1 to EPN1 with default settings
•
EPP2 to EPN2 with AT^SAIC=2,2,2,0,0,0 at^snfi=1,32767 and at^snfo=0,4096,5792,8192,
11584,16384,4,0
Table 33:
Voiceband receive path
Parameter
Min
Typ
Max
Unit
Test condition / remark
Maximum differential
output voltage (peak to
peak)
EPP1 to EPN1
6.0
6.2
V
V
8
,
no load,
Audio Mode 5, Volume 4
@ 3.14 dBm0 (Full Scale)
Batt+ = 3.6V
Maximum differential
output voltage (peak to
peak)
EPP2 to EPN2
4.0
4.2
V
V
32
,
no load
Audio Mode 6, Volume 3
1
@ 3.14 dBm0 (Full Scale)
Nominal differential out-
put voltage (peak to
peak)
EPP1 to EPN1
4.2
4.3
V
V
8
,
no load,
Audio Mode 5, Volume 4
@ 0 dBm0 (Nominal level)
Nominal differential out-
put voltage (peak to
peak)
EPP2 to EPN2
2.8
2.9
V
V
32
,
no load
Audio Mode 6, Volume 3
@ 0 dBm0 (Nominal level)
Output bias voltage
Batt+/2
V
from EPP1 or EPN1 to AGND
Output bias voltage
1.2
V
from EPP2 or EPN2 to AGND
Differential output gain
settings (gs) at 6dB
stages (outBbcGain)
-18
0
dB
Set with AT^SNFO
Fine scaling by DSP
(outCalibrate)
-
0
dB
Set
with
AT^SNFO
Differential output load
resistance
7.5
8
From EPP1 to EPN1
Differential output load
resistance
27
32
From EPP2 to EPN2
Single ended output
load resistance
27
32
From EPP2 or EPN2 to AGND
Absolute gain error
-0.1
0.1
dB
outBbcGain=2
Idle channel noise
2
-83
-75
dBm0p outBbcGain=2
Signal to noise and dis-
tortion
3
47
dB
outBbcGain=2
