Grass valley 8906 DATASHEET

26 8906 Analog Video Clamping Equalizing Distribution Amplifier w/SNMP

Key Features

•Suitable for NTSC, PAL, SECAM, RGB, YUV, Tri-level sync

•Passive differential looping input with eight active outputs

•NTSC/PAL input presence detection with SNMP trap generation

•Selectable AC, DC, DC restore, or clamp (slow/fast) input coupling

•Selectable, dual-speed clamp for singleended hum rejection

•Adjustable White Clipper removes peak impulse transients

•Card-edge adjustable cable-specific equalization for up to 300 meters

•Card-edge adjustable gain control

•Excellent differential gain and phase specifications

•Card-edge status indicators

	This distribution amplifier offers all the features	8900V-R
	and functionality of our 8901 utility DA and our
	8902 equalizing DA, plus a dual-speed clamp	J1	J2
	and video presence detection with SNMP trap
	generation. While all Grass Valley distribution
	amplifiers remove differential or common mode	J3	J4
	hum induced by cable runs adjacent to AC
	mains cables, this module offers a dual-speed	Outputs	Outputs
	self-clamping circuit to handle single-ended	J5	J6
	hum caused by grounded coaxial cable shields.
	Additionally, a White Clipper circuit eliminates	J7	J8
	impulse noise above a user-selectable
	threshold. And the user-enabled video
	presence detection feature generates SNMP	J9	J10
	traps that can be sent to our NetCentral SNMP
			Input
	manager or other SNMP systems for mission-
	critical applications.
		Loopthru

AC Coupled

Gain

Analog

EQ

DC Coupled

White

Analog

Video

Adjust

DC Restored

Clip

Video

Input

Clamped

Outputs

Video Input

Presence Detection

Specifications

Supported Frame Types

GeckoFlex with 8900V-R GeckoFlex Video rear module, Gecko video frames: 8900TX-V, 8900TF-V, 8900TFN-V

Power Rating

2.3 Watts – single slot

Input

Type: 1 Vp-p analog video with operation up to 2 Vp-p NTSC, PAL, SECAM, RGB, YUV, Tri-level sync

Connector type: BNC

Impedance: Passive high impedance differential loop-through

Return loss: >40 dB up to 5 MHz CMRR: >66 dB 50/60 Hz

Common mode input: ±10V

Output

Voltage: 1 Vp-p ±2 dB

Number of outputs: Eight active plus one passive loop-through input

Connector type: BNC Impedance: 75Ω

Return loss: >40 dB up to 5 MHz

Output DC: <50 mV

Performance

Cable equalization: Dual range

•0 to 150m (0 – 500 ft.)

•150 to 300m (500 – 1000 ft.)

White clip: On/off user selectable

Frequency response:

•±0.05 dB to 5 MHz

•±0.1 dB 5 to 8 MHz

•–1 dB at 16 MHz

Differential gain: <0.1% Differential phase: <0.1° Gain range: ±2 dB

Tilt: <0.5%

Coupling: AC, DC, DC restore, clamp two speeds

Clamp hum rejection:

Slow: 20 dB Fast: 46 dB

Electrical length: 22 ns Temperature range: 0° to 30°C

Indicators/Controls

User controls: Output gain adjustment range: ±2 dB EQ adjustment for up to 300 meters of input cable White clipper adjustment range: 500 mV to 1200 mV

LED indicators: Fault, power, frame bus communication

Ordering Information

This module can be mounted in a GeckoFlex frame when ordered with the 8900V-R GeckoFlex Video rear module.

	8906	-EQ-11	8906-EQ-0.6-3.7
	Belden RG11/U, 8238		PIK AF 0.6/3.7 cable
	cable		8906-EQ-PSF1-3
	8906	-EQ-1694
			PSF 1/3 cable
	Belden 1694A cable		8906-EQ-5C2VS
	8906	-EQ-8281
			Canare L-5C2VS cable
	Belden 8281 cable		8906-EQ-VCB100
	8906	-EQ-0.03-0.14
			S2CEB VCB100 cable
	Belden 1505A and Gepco
	VPM 2000
	8906	-EQ-9259
	Belden RG59U, 9259
	cable
	8906-EQ-VDM230
	Gepco VDM230 cable
	8906	-EQ-1.0-6.6
	PIK AF 0.6/6.6 cable
	8906	-EQ-0.6-2.8
	PIK AF 0.6/2.8 cable

For detailed specifications, installation, and setup instructions see: www.grassvalley.com/docs/modular