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1 General
1.1 Introduction
The ASD-711i is a high quality, 24-bit Analog to digital audio converter that allows conversion of
a stereo Analog audio signal to an AES/EBU type digital signal. The dual version, ASD-712i, is
fitted with two independent converters. The sampling rate can be set up to 96 kHz by an internal
clock, or by using an external reference signal. The internal digital EBU tone generator, enabled
from the card edge, facilitates alignment of audio levels. User set channel identification data may
be encoded in the AES/EBU status bits. The ASD-711i and ASD-712i are compatible with AES3
110 Ω balanced and AES3-id 75 Ω unbalanced audio standards.
1.2 Features
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24-bit high-quality Analog to digital audio conversion
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96 kHz, 48 kHz, 44.1 kHz and 32kHz sampling rate
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Level adjustment: -96 to +31.5 dB (0.5 dB steps)
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Auto detect reference input: NTSC, PAL, AES3 or Word Clock
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User coding of channel status bits
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Internal EBU tone generator
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Internal AES silence generator
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8 values for 0 dBFS: +28/+24/+22/+21/+20/+18/+16/+15 dBu
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2 (or 4) balanced audio inputs
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AES3 (110 Ω) or AES3-id (75 Ω) outputs
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4 GPI outputs
ASD- - 711i/712i
ASD
711i/712i
5