AIO-A Module

The AIO-A module features microphone inputs and amplified speaker outputs.  It provides the AIO with the core functionality for production testing of loudspeakers or microphones.

The AIO-A module has four analog BNC microphone inputs with switchable IEPE constant current supply.  Input gain, IEPE constant current supply, and TEDS interfacing are software controlled.

The AIO-A module also has two class-D amplified outputs with Euroblock connectors.  The outputs are differential with (+) and (-) connections, biased at +7.5V.

Analog Inputs

Input Gain: 1x, 10x, or 100x

Full-Scale Input Voltage @ 1x gain: ± 8.75V

Dynamic Range @ 1x gain: > 110 dB

Dynamic Range @ 10x gain: > 105 dB

Dynamic Range @ 100x gain: > 95 dB

THDN (A-weighted): <-95dB 20Hz – 20kHz

Frequency Response: ± 0.5dB 20Hz – 20kHz

Maximum Input Voltage: ± 15V (do not exceed)

Input Impedance: 1MΩ

Constant Current Supply: 4mA / 21V excitation voltage

TEDS: IEEE 1451.4 Class 1


Class-D Amplified Outputs

Output Power (THDN <.1%): 10W continuous at 1kHz

Maximum Output Voltage: ± 13.5V

Frequency Response: ± 0.5dB 20Hz – 20kHz