Grass valley 8941 DATASHEET
30 8941 Component Digital Video Monitoring Distribution Amplifier
Key Features
•Passive differential loop-through design adds flexibility and reliability to system
•Four NTSC/PAL analog composite outputs and four serial component digital outputs
•Ancillary data and audio detection
•Auto format detection (525/625)
•Front panel LEDs indicate line count, EQ warning, and ancillary audio/data presence
•Remote health monitoring
The 8941 monitoring DA supports up to four NTSC or PAL encoded monitor outputs for picture viewing, in addition to four reclocked serial component digital outputs. The 8941 is tailored specifically for 270 Mb/s serial component digital signals, both 525 and 625 formats. In addition to a composite video monitoring output, the 8941 also indicates via
front panel LED whether either ancillary data or audio is embedded in the signal.
NTSC/PAL
Analog Out
SDI Only
Outputs
(180 º)
ASI/SDI Output (0 º)
SDI
Input (0 º)
8900V-R
J1 J2
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NTSC/PAL |
J3 |
J4 |
Analog Out |
J5 |
J6 |
SDI Only |
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Output |
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(180 º) |
J7 |
J8 |
ASI/SDI |
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Output |
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(0 º) |
J9 |
J10 |
SDI |
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Input |
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(0 º) |
Loopthru |
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ASI/SDI |
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Output |
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0 |
SDI Input |
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Reclocker |
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SDI Only |
(270 Mb/s) |
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Output |
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180 |
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Encoder |
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De- |
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+ DA |
NTSC/PAL |
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TRS |
PLD |
Outputs |
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serializer |
Detector |
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Input |
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Auto or |
Monitor |
EQ LED |
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Manual |
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Modes |
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Signal + Format LEDs |
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Specifications
Supported Frame Types
GeckoFlex with 8900V-R GeckoFlex Video rear module, Gecko video frames: 8900TX-V, 8900TF-V, 8900TFN-V
Power Rating
5.5 Watts – single slot
Input
Type: Serial digital (SMPTE 259M-C)
Connector type: BNC
Impedance: High Z differential loop-through
Supported data rate: 270 Mb/s
Return loss: >18 dB (up to 270 MHz)
Automatic cable equalization: <300 meters (up to 270 Mb/s)
Digital Output
Type: Serial digital (SMPTE 259M-C)
Number of outputs: Four
Connector type: BNC
Impedance: 75Ω
Return loss: >18 dB (up to 270 MHz)
Analog Output
Type: Composite NTSC/PAL analog (SMPTE 170M or CCIR 624)
Number of outputs: Four Connector type: BNC
Impedance: 75Ω
Return loss: >40 dB (up to 5 MHz)
Performance
Digital output signal reclocked Differential gain: <1% (analog output) Differential phase: <1° (analog output) Electrical length:
•Analog: 9.87 µs typical
•Digital: 10 ns typical
Temperature range: 0° to 50°C (All specifications met)
Health monitoring: Power supply fault alert per SMPTE 269M, input signal present, input EQ warning, missing EAV/SAV
Indicators and Controls
Indicators: Input video present, EQ warning, ancillary data present, ancillary audio data present
User controls: Setup, input rounding, health alarm modes, cross-color reduction, vertical blanking, test signal, output gain
Remote: Frame alarm
Test signal: Full field color bars
Ordering Information
This module can be mounted in a GeckoFlex frame when ordered with the 8900V-R GeckoFlex Video rear module.
8941
Component digital monitoring distribution amplifier
For detailed specifications, installation, and setup instructions see: www.grassvalley.com/docs/modular
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