Grass Valley 8921DAC User Manual
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8921DAC Instruction Manual
Specifications
Performance (+ 24 dBu into 10 k Ω load unless otherwise stated)
Signal/noise ratio
> 104 dB unwatched 22 kHz filter
> 107 dB “A” weighted
THD + noise (swept, 20 to 20 kHz)
< 0.012% 22 kHz filter, + 24 dBu
(< – 78 dB), typical (1 kHz): < – 87 dB
Interchange crosstalk
< – 100 dB, 20 Hz to 20 kHz
Intermediation distortion
< 0.015% CCIF two-tone test
(– 76 dB) 19 kHz and 20 kHz tones
Frequency response
± 0.1 dB, 20 Hz to 20 kHz, relative to 1 kHz @ 48 kHz to 96 kHz
De-emphasis (32 kHz to 48 kHz)
50/15 µs pre-emphasis Automatic, Professional Mode only, no de-emphasis at
output
Minimum delay from input to output
3.8 msec @ 48 kHz in/out sample rate
Delay at maximum delay setting
5.4 seconds @ 48kHz in/out sample rate
Static withstand
5 Kiev (330 Ω, 150 if) for any input or output
Factory calibration
0 dBFS = + 24 dBu ± 0.1 into 10 k Ω
Mode and control switches set to 0
Environmental
Frame temperature range
See frame specification
Operating humidity range
0 to 90% non-condensing
Non-operating temperature
– 10 to 70 degrees C
Mechanical
Frame type
Gecko 8900 Audio
Power
Power consumption
< 7 W, 500 mA @ + 12 V, 150 mA @ – 12V
Table 6. 8921DAC Specifications
Parameter
Value