GRASS VALLEY 8950DAC Datasheet

Key Features

• 10-bit D-to-A converter
• 4X over-sampling for outstanding
resolution
• Independent component gain adjustment
• EDH detection to track signal errors
• 2.5 lines output phasing
• Supports all popular CAV formats
• Selective vertical blanking
• SDI passive loop-through input
• Remote control via Ethernet frame I/F
Specifications
Supported Frame Types
GeckoFlex with 8900V-R GeckoFlex Video rear module,
Gecko video frames: 8900TX-V, 8900TF-V, 8900TFN-V
Power Rating
7.5 Watts – single slot
Input
Signal type: SMPTE 259M serial 10-bit 4:2:2
component video
Connector: High Z differential loop-through BNC
Return loss: >18 dB up to 270 MHz
Output
Connector: 75Ω BNC
Number of video outputs: Two sets (RGB or YUV)
Number of analog sync outputs: Two
Formats: RGB, EBU N10 (SMPTE MII Japan), Beta US,
Beta Japan, MII US
Sync output: Analog composite sync
Return loss: >40 dB up to 5.5 MHz
Performance
Quantization: 10-bit
Sampling: 4X (54 MHz)
Frequency response: ±0.1 dB
Phase increments: 37 ns
8950DAC Component D-to-A Converter
Use the 8950DAC to display a serial
component digital signal on an analog RGB
monitor, to record a digital video signal to an
analog component VTR, or to send digital video
to a component analog switcher. The 8950DAC
is compact and fits in the 8900-V frame.
Sync
Adj
SDI
Generator
Delay
Loopthrough
Y,U,V
PLL
Separator
Local
Controls
Signal-to-noise ratio: ≥70 dB
Group delay error: <5 ns
Vertical blanking:
• 525: narrow 9L or wide 19L
• 625: narrow 9L or wide 25L
Output phasing: 2.5 horizontal lines
Electrical length: 2.5 µs
Operating temperature: 0° to 45°C ambient
Relative humidity: 0% to 90% non-condensing
Indicators and Controls
Indicators:
• Input video present
• Power
• Fault (EDH)
• Output video level warning
Front edge controls:
• Standard selection
• Video gain
• Output timing
• Component gain adjustments (Y/G, Cb/B, and Cr/R)
• Sync level
• Input format
• Blanking
Remote: All indicators and controls via frame Ethernet
8900V-R
J1 J2
Y/G
J3 J4
U/B
J5 J6
V/R
J7 J8
Composite
Sync
J9 J10
Loopthru
DAC
Y/G
Color Space
U/B
Conversion
V/R
Optional
Gain
Micro-
Offset
processor
LEDs
Ethernet
Ordering Information
This module can be mounted in a GeckoFlex
frame when ordered with the 8900V-R GeckoFlex
Video rear.
8950DAC
Component video D-to-A converter
For detailed specifications, installation, and setup
instructions see:
www.grassvalley.com/docs/modular
71
Y/G
U/B
V/R
Composite
Sync
SDI Input
Composite
Sync
Y/G
U/B
V/R