6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
35
Frames and Modules
Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules
Analog Audio Outputs
Item
Specifications
Number of Outputs
Up to 2 in 6800 series frames
Up to 4 in 7000 series frames
Connector Type
Removable barrier strip
Max. Output Level
24 dB @ full scale (balanced)
- intended for high Z loads
Peak Output
Adjustable from 6 to 24 dBu
Impedance
66
Ω
balanced
THD+N
67 dB @ 1 kHz 0 dBFS, typical
Signal to Noise
> 90 dB (50-20kHz)E
Inter-channel
Crosstalk
> 90 dB (50-20kHz)
Frequency Response
(@ full scale output)
• 50 Hz - 10 kHz: 0 ±0.15 dB
• 10 kHz - 20 kHz: 0 -0.3 dB
Power Requirement
ASM-68xx
Positive rail: 4.3 W
Negative rail: 0.70 W
Total: 5.0 W
Power Requirement
ADM-68xx
Positive rail: 4.5 W
Negative rail: 2.9 W
Total: 7.4 W
Single-ended Digital
Audio Outputs
Number of outputs
Number of outputs:
2 outputs of both AES Ch1 and AES Ch2
Standards
SMPTE 276M-1995 and ANSI S4.40-1992
Impedance
75
Ω
Level
1.0 Vpp (±50 mV)
DC Offset
0.0 V (±50 mV)
Rise/fall (10%-90%)
33-42 ns
Capable of driving the data over 350 meters of coax
Short Circuit
Tolerance
Output still maintains compliance with SMPTE
276M specifications with 1 short per output channel