User manual

Appendix A: Specifications
A-16
AM700 Audio Measurement Set User Manual
Table A-4: Digital Audio Unit Specifications
Capabilities Description
The Digital Audio Unit includes a generator, a reference generator, a main receiver, and a reference
receiver. These four sections can operate simultaneously, each at its own sample rate.
Interface Characteristics The generator always drives the Digital Out XLR,
Unbalanced Out BNC, and Optical Out connec-
tors. The main receiver selects one of the
following: Digital XLR, Unbalanced In BNC,
Optical In, or AES generator as its source.
The reference receiver normally selects the
Digital Ref In XLR as its source, except when the
AES generator is selected as the main input, the
reference receiver input switches to the reference
generator.
Connector Types
Front Panel
Digital In, Digital Out
Rear Panel
Unbalanced In,
Unbalanced Out
Optical In, Optical Out
Digital Reference In,
Digital Reference Out
DSP
Balanced XLR, conforms to AES3-1992 and EBU
3250-E.
BNC
F05 snap-in type, 10 meter capability using APF
(980/1000 mm [micrometer]) optical fiber
Balanced XLR, conforms to AES3-1992 and EBU
3250-E
15-pin D, TTL/CMOS compatible; pinout compat-
ible with Ariel Digital Microphone
Input and Output Impedances
Digital In, Digital Out, Digital Reference In,
Digital Reference Out
Unbalanced In, Unbalanced Out
110 Ω 10%, 0.1 MHz to 6 MHz
75 Ω 5%, 0.1 MHz to 6 MHz