D14646.01—MARCH 2010
14
TANDBERG Codec C40
The Physical Interface Guide
Contents
Introduction
The physical interface
Appendices
Contact us
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Microphone Inputs 1 to 2
XLR female
Signal
levels
Clipping level
Nominal
level
Level
setting
[dB]
[mVpp]
[dBu]
[dBu]
0.0
275.0
-18.0
-36.0
1.0
245.1
-19.0
-37.0
2.0
218.4
-20.0
-38.0
3.0
194.7
-21.0
-39.0
4.0
173.5
-22.0
-40.0
5.0
154.6
-23.0
-41.0
6.0
137.8
-24.0
-42.0
7.0
122.8
-25.0
-43.0
8.0
109.5
-26.0
-44.0
9.0
97.6
-27.0
-45.0
10.0
87.0
-28.0
-46.0
11.0
77.5
-29.0
-47.0
12.0
69.1
-30.0
-48.0
13.0
61.6
-31.0
-49.0
14.0
54.9
-32.0
-50.0
15.0
48,9
-33.0
-51.0
16.0
43,6
-34.0
-52.0
17.0
38,8
-35.0
-53.0
18.0
34,6
-36.0
-54.0
19.0
30,9
-37.0
-55.0
20.0
27,5
-38.0
-56.0
21.0
24,5
-39.0
-57.0
22.0
21,8
-40.0
-58.0
23.0
19,5
-41.0
-59.0
24.0
17,4
-42.0
-60.0
Audio signal levels tables
This specification is valid for Mic 1–2 inputs if
Microphone Level setting is selected.
Line Inputs 1 to 4
Female RCA/phone
Signal
levels
Clipping level
Nominal
level
Level
setting
[dB]
[Vpp]
[dBu]
[dBu]
0.0
17.4
18.0
0.0
1.0
15.5
17.0
-1.0
2.0
13.8
16.0
-2.0
3.0
12.3
15.0
-3.0
4.0
11.0
14.0
-4.0
5.0
9.8
13.0
-5.0
6.0
8.7
12.0
-6.0
7.0
7.8
11.0
-7.0
8.0
6.9
10.0
-8.0
9.0
6.2
9.0
-9.0
10.0
5.5
8.0
-10.0
11.0
4.9
7.0
-11.0
12.0
4.4
6.0
-12.0
13.0
3.9
5.0
-13.0
14.0
3.5
4.0
-14.0
15.0
3.1
3.0
-15.0
16.0
2.8
2.0
-16.0
17.0
2.5
1.0
-17.0
18.0
2,2
0.0
-18.0
19.0
2,0
-1.0
-19.0
20.0
1,7
-2.0
-20.0
21.0
1,6
-3.0
-21.0
22.0
1,4
-4.0
-22.0
23.0
1,2
-5.0
-23.0
24.0
1,1
-6.0
-24.0
Line outputs 1 to 2
Female RCA/phone
Signal
levels
Absolute max
output level
Nominal
level
Level
setting
[dB]
[Vpp]
[dBu]
[dBu]
-24.0
1,1
-6.0
-24.0
-23.0
1,2
-5.0
-23.0
-22.0
1,4
-4.0
-22.0
-21.0
1,5
-3.0
-21.0
-20.0
1,7
-2.0
-20.0
-19.0
1,9
-1.0
-19.0
-18.0
2,2
0.0
-18.0
-17.0
2.5
1.0
-17.0
-16.0
2.8
2.0
-16.0
-15.0
3.1
3.0
-15.0
-14.0
3.5
4.0
-14.0
-13.0
3.9
5.0
-13.0
-12.0
4.4
6.0
-12.0
-11.0
4.9
7.0
-11.0
-10.0
5.5
8.0
-10.0
-9.0
6.2
9.0
-9.0
-8.0
6.9
10.0
-8.0
-7.0
7.8
11.0
-7.0
-6.0
8.7
12.0
-6.0
-5.0
9.8
13.0
-5.0
-4.0
11.0
14.0
-4.0
-3.0
12.3
15.0
-3.0
-2.0
13.8
16.0
-2.0
-1.0
15.5
17.0
-1.0
0.0
17.4
18.0
0.0
Notes:
1.
Default levels are marked with white text on black
2.
For the dBu value for input clipping level and absolute max output level, a sine waveform is assumed
3.
If numbers in dBV are required, dBV value is 2.2 dB lower than the dBu value.
Example: -10 dBu equals -12.2 dBV
Contents
Introduction
The physical interface
Appendices
Contact us
The physical interface
Contents
Introduction
The physical interface
Appendices
Contact us
The physical interface
