With a 0 dB gain setting, the maximum input signal level that can be applied without dis-
tortion by the ACE-RIU is 2.5 V
pp
. Theoretically, an input signal as small as +/- 5 mV
peak
could be applied to the audio input. However, it might not be possible to actually use a +/- 5
mV
peak
signal input to the ACE-RIU due to on-board circuit noise, ambient noise (both audio
and electronic), interface cabling construction, and microphone characteristics.
Note
: If you are unsure of your headset's compatibility with the ACE-RIU, ASTi provides a
headset evaluation service.
Figure 8, "ACE-RIU input frequency response" below shows the ACE-RIU's input frequency
response:
Figure 8: ACE-RIU input frequency response
4.1.2 Microphone power
The ACE-RIU can provide mic power voltage to electret-type microphones. A +10 VDC
potential is created across the audio in + and lines by populating resistor packs in connectors
J24 and J32. Installing resistors in J24 provides mic power to ACE-RIU channels A and B,
where installing resistors in J32 provides power to channels C and D.
Copyright © 2022 Advanced Simulation Technology inc.
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ACE-RIU Technical User Guide (Rev. K, Ver. 4)
Summary of Contents for ACE-RIU
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