1. Introduction
The Echo AIO-LT is a combination acoustic and digital test interface built for production-line testing and QA/QC verification. Combining two balanced line-level/headphone outputs, four mic/line analog inputs, and a 10-channel full duplex TDM bus in a single unit, the AIO-LT is an integrated, cost-effective, and reliable high-throughput audio test solution.
Each analog input can be individually configured as a line level input or as a measurement microphone input. Microphone inputs include an IEPE microphone conditioning amplifier with integrated constant current power supply (CCP). Line level outputs can also drive most headphones.
The AIO-LT presents a standard USB audio sound card interface and is compatible with most audio test software including APx Flex.
2. Features
4 IEPE microphone / line inputs with TEDS
2 differentially balanced line / headphone outputs
10*10 TDM interface
USB 2.0 audio with locking connector
Quiet fanless design
3. Specifications
INTERFACE
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Sample rates
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48 kHz, 96 kHz, and 192 kHz
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USB
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USB 2.0 audio class compliant
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Supported operating systems
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Windows 7 or later; macOS |
Audio APIs
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ASIO, WASAPI, CoreAudio |
AC Power
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Universal power supply; 90 - 264 VAC at 50 or 60 Hz |
MICROPHONE/LINE INPUTS
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Input bandwidth
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72 kHz
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Input impedance
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1 MΩ
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Input gain
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1x, 10x, and 100x
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Full-scale input voltage (1x gain)
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8.75 Vpk
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Maximum input voltage
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15 Vpk (do not exceed)
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Dynamic range (1x gain, A-weighted)
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> 110 dB
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THD+N (1x gain, A-weighted)
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< -95 dB (20 Hz – 20 kHz)
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Frequency response
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±0.5 dB (20 Hz – 20 kHz)
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Constant current supply
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4 mA, 21 V excitation voltage
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TEDS
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IEEE 1451.4 Class 1
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LINE OUTPUTS
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Output power (THD+N < .1%)
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32mW continuous at 1 kHz
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Minimum load
Full-scale output voltage
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32 Ω
2.65 Vpk
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Frequency response
Output bandwidth
Dynamic range (A-weighted)
THD+N (A-weighted)
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±0.5 dB (20 Hz – 20 kHz)
80 kHz
> 110 dB
< -94 dB (20 Hz – 20 kHz)
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TDM
Channels
Clock source
Bits per frame
Bits per sample
Frame sync width
Frame sync position
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2, 4, 8, or 10
Internal or external clock sync
64, 128, or 256
24 or 32
1 - 128 bits
Bit 0 - 255
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DIMENSION & WEIGHT
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44.4cm x 22.2cm x 4.4cm; 3.3kg |
4. Download
AIO-LT Datasheet
5. Contact
Unit 2209, Golden Park Tower, 2 Pham Van Bach Street, Yen Hoa, Cau Giay District, Ha Noi, Vietnam
tel.: +84 (24) 38229808
fax: +84 (24) 38229553
cell: +84 90 336 8648
email: tuonglam@syscovn.com