GRASS VALLEY 8920ADC -, Instruction Manual

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30 8920ADC Instruction Manual
Specifications
Specifications
Table 8. 8920ADC Specifications
Parameter Value
Analog Input
Number of inputs Balanced stereo pair
Connector type Terminal block
Input impedance > 20 k
Ω
differential
Input level range +12 to +28 dBu
Common mode rejection > 65 dB 50 Hz to 20 kHz
Differential DC 0.25 V maximum
Common mode input voltage 20 V maximum
AES Reference Input
Signal type AES3 ID (1992) transformer coupled
Number of inputs 1 Loop-through
Input return loss >15 dB (100 kHz-10 MHz)
Sampling rate 48 kHz
Maximum jitter < 200 ps RMS
Outputs
Number of outputs 4
Signal type SMPTE 276M, AES3 ID (1992)
Signal level +12 to +28 dBu input range adjustable to 0.0 dBFS
Output impedance 75
Ω
Connector type 75
Ω
BNC
Coupling AC coupled
Performance (@ +28 dBU input and full scale output)
Sampling rate 48 kHz
Frequency response ± 0.05 dB relative to 1 kHz, 20 Hz to 20 kHz
Signal-to-noise ratio >102 dB unweighted, 20 Hz to 20 kHz
>105 dB “A” weighted, 20 Hz to 20 kHz
Interchannel crosstalk <-100 dB, 20 Hz - 20 kHz
Delay (input to output) 925 µS
Environmental
Frame temperature range See Gecko 8900 Frame specification
Operating humidity range 0 to 90% non-condensing
Non-operating temperature -10 to 70 degrees C
Mechanical
Frame type Gecko 8900 Series
Power Requirements
Supply voltage ±12 V
Power consumption < 4.2 Watts