Leader Electronics Corp. LT 443D, Instruction Manual

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DA-1
1. SPECIFICATIONS
1.1 Description
Installing the LT 443D-DA Digital Audio Unit in the LT 443D mainframe can output AES/
EBU digital audio signals (four systems), silence signals (one system), and 48 kHz word
clock signals.
The AES/EBU signal characteristics (e.g., output level, frequency) can be independently
set for each output system.
The sampling frequency is synchronized with the video signal of plug-in unit installed in the
mainframe.
1.2 Specifications
1.2.1 Output
• AES/EBU Digital Audio Output
Number of Outputs 4 (2-channel output)
Output Impedance 75 Ω unbalanced
Output Amplitude 1 Vp-p ± 0.1 V (into 75 Ω )
Output Connector BNC
• Silence Signal (DARS grade 2) Output
Number of Outputs 1 (2-channel output)
Output Impedance 75
Ω
unbalanced
Output Amplitude 1 Vp-p ± 0.1 V (into 75 Ω )
Output Connector BNC
• 48 kHz Word Clock
Number of Outputs 1
Output Impedance 75 Ω unbalanced (“1 Vp-p” output)
Output Amplitude 1 Vp-p ± 0.1 V (into 75 Ω ), 5 V CMOS, selectable
Output Connector BNC
1.2.2 Signal Specifications
• Specifications ANSI S4.40 (AES3-1992), AES 11-1997
SMPTE 276M, AES-3id-2001
1.2.3 Function
• Sampling Frequency 48 kHz (sync to video signal)
• Resolution 20 bits, 24 bits, selectable
• Preemphasis OFF, 50/15 µ s, CCITT, selectable
(CS bit can only be selected.)