Specifications – Grass Valley 8950DAC User Manual
Page 35
8950DAC Instruction Manual
35
Specifications
Specifications
Table 7. 8950DAC Specifications
Parameter
Value
SDI Input
Signal type
SMPTE 259M serial 10-bit 4:2:2 component video
Number of inputs
1 loop-through
Connector type
75 Ω BNC
Return loss
> 18 dB up to 270 MHz
Signal level
SDI: maximum cable length for pathological signal
≤ 275 m
CAV Outputs
Number of outputs
2 sets (GBR or Y/B-Y/R-Y)
Connector type
75 Ω BNC
Signal formats
SMPTE, GBR, EBU N10, MII Japan, Beta US, Beta Japan, MII US
Signal DC level‘
0 V DC ± 20 mV
Signal level
CAV from 0.5 V up to 1.5 V (75 Ω terminated)
Factory default – SMPTE output ± 1% (after SMPTE setup in
Y/B-Y/R-Y, default GBR level accuracy is ± 5%)
Vertical blanking
525:
Narrow – 9 lines
Wide – 19 lines
625:
Narrow – 9 lines
Wide – 25 lines
Return loss
> 40 dB up to 5.5 MHz
Analog Sync Output
Connectors
2 BNC
Signal type
Analog composite sync
Output impedance
75 Ω
Output level
0.2 V up to 2.5 V p-p (75 Ω terminated)
Factory default: –2 V p-p ± 10%, DC: 0 V ± 20 mV
Output DC level
0 V DC ± 200 mV
Factory default: 0 V DC ± 1%
Performance
Support standards
525 or 625 (auto or manual)
Internal DSP
12 + 1 bit precision
X4 oversampling
Output D/A
10-bit
Analog output frequency response
Y, G, B,R: ± 0.1 dB (10 Hz to 5.5 MHz, ± 0.1dB, ref. 1 MHz)
R-Y, B-Y: ± 0.1 dB (10 Hz to 2.75 MHz, ± 0.1dB, ref. 1 MHz)
Analog output group delay error
Y: < 5 ns peak to peak (10 Hz to 5.5 MHz)
R-Y, B-Y: < 5 ns peak to peak (10 Hz to 2.75 MHz)
Analog output 3 channels delay error
< 2 ns
Error checking and reporting
EDH processor
Signal-to-noise ratio
S/N ≥ 68 dB
K-factor 2T pulse
0.3/0.4%
Module delay
2.68 µsec