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Specifications – Grass Valley 8950ADC User Manual

Page 33

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8950ADC Instruction Manual

33

Specifications

Specifications

Table 6. 8950ADC Specifications

Parameter

Value

Analog Component Input

Signal type

SMPTE, GBR, EBU N10, Beta (US), Beta (Japan), MII (US),
MII (Japan)

Number of inputs

3: Y, (B-Y), (R-Y) or G, B, R

Connector type

75 Ω BNC

Signal level

1 Vpp +15% max (Y or G channel)
0.7Vpp +15% [(B-Y), (R-Y) or B, R channels]

Return loss

> 40 db to 5.5 MHz

External Sync Input

Signal type

Color black: 140 mV to 560 mV / Composite sync: 600 mV to 3 V

Number of inputs

1 loop-through

Connector type

75 Ω BNC

Impedance

Hi Z (> 10k)

Return loss

> 40 db to 5.5 MHz

Digital Outputs

Number of outputs

2

Connector type

75 Ω BNC

Signal formats

SMPTE 259M

Return loss

> 18 dB, 5 MHz - 270 MHz

Error handling

EDH embedded

Performance

Standards

Input: 525 or 625 (auto or manual)

Sampling

4 times over-sampling

Input A/D

10 bits

Frequency response

Y,G,B,R: ±0.1 dB (10 Hz to 5.5 MHz)
(R-Y), (B-Y): ±0.1 dB (10 Hz to 2.75 MHz)

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)

Propagation delay

2.5 µs GBR input; 2.1 µs Y(B-Y) (R-Y) input

Delay control (user)

Up to 2.5 line (37 ns increments)

Relative timing of CAV outputs

Y to B-Y and R-Y within 2 ns

K-factor 2T pulse

K < 0.4%

Vertical blanking

525:
Narrow (short) – 9 lines
Wide – 19 lines
625:
Narrow (short) – 9 lines
Wide – 25 lines

Input gain control

± 50% ± 20%

Black level setup

Manual, all channels (±15%)

Signal-to-noise ratio

≥ 60 dB