GRASS VALLEY 8941 Datasheet

8941 Component Digital Video Monitoring Distribution Amplifier
30
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
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
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.
SDI Input
Reclocker
(270 Mb/s)
serializer
Input
Monitor
Auto or
EQ LED
Manual
Modes
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
8900V-R
J1
NTSC/PAL
Analog Out
J3
SDI Only
J5
Outputs
(180 º)
ASI/SDI
J7
Output
(0 º)
SDI
J9
Input
(0 º)
Loopthru
Encoder
+ DA
De-
TRS
PLD
Detector
Signal + Format LEDs
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
J2
NTSC/PAL
Analog Out
J4
SDI Only
J6
Output
(180 º)
ASI/SDI
J8
Output
(0 º)
SDI
J10
Input
(0 º)
ASI/SDI
Output
0
SDI Only
Output
180
NTSC/PAL
Outputs