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User Manual for ALP442e & ALP442e-MIC
Gain on AES channel x towards DAW4 record output
Gain on AES channel x towards DAW5 record output
Gain on AES channel x towards DAW6 record output
Gain on AES channel x towards DAW7 record output
Gain on AES channel x towards DAW8 record output
Gain on AES channel x towards DAW9 record output
Gain on AES channel x towards DAW10 record out
Gain on AES channel x towards DAW11 record out
Gain on AES channel x towards DAW12 record out
Gain on AES channel x towards DAW13 record out
Gain on AES channel x towards DAW14 record out
Gain on AES channel x towards DAW15 record out
(*) ALP882e and ALP882e-Mic only.
12.3.9 Rules to calculate the gain values
The ALP442e and ALP882e cards are designed so that 0dFs is reached for an analog input signal of
0dBu (0.780V), and an analog gain set to 0 dB.
●
Analog input gain
If G is the analog input gain in dB
Value (numid[index]) = 50+2G, with: G(dB) ∈ [-24;16], and index ∈ [1;82]
Example: G = -24dB => numid[index] = 2
ALP882e & ALP882e-MIC
,
Mxr (x+24)/20
Mxr (x+24)/21
Mxr (x+24)/22
Mxr (x+24)/23
Mxr (x+24)/24
Mxr (x+24)/25
Mxr (x+24)/26
Mxr (x+24)/27
Mxr (x+24)/28
Mxr (x+24)/29
Mxr (x+24)/30
Mxr (x+24)/31
Value of numid(index)
With index=1102 to 1109
0
1
2
6
14
26
42
50
0
729 + x
0
761 + x
0
793 + x
0
825 + x
0
857 + x
0
889 + x
0
921 + x
0
953 + x
0
985 + x
0
1017 + x
0
1049 + x
0
1081 + x
Gain
Max input signal for 0dBfs
Mute
-24.5 dB
-24 dB
-22 dB
-18 dB
-12 dB
-4 dB
0 dB
--
24.5 dB
24 dB
22
18
12
4
0
55
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