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Specifications – Grass Valley 8950DAC User Manual

Page 35

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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