Grass valley 8901 DATASHEET

24 8901 Utility Analog Video Distribution Amplifier

Key Features

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

•Passive differential looping input with eight active outputs

•Selectable AC or DC input coupling modes

•Card-edge adjustable gain control

•Excellent differential gain and phase specifications

•Card-edge status indicators

	This distribution amplifier is ideal for short	8900V-R
	cable runs of high-quality signals. Its flat
	frequency response and very impressive	J1	J2
	signal-to-noise ratio ensures high-quality
	copies to all eight outputs. The AC coupled
	mode is used when the incoming video	J3	J4
	signal has a blanking level at anything other
	than zero volts. For handling color-difference	Outputs	Outputs
	signals (B-Y, R-Y), DC input coupling is	J5	J6
	recommended. Additionally, the 8901 module
	can be used for simple fanout distribution of
	AES/EBU 1 Vp-p coaxial digital audio signals	J7	J8
	that do not need reclocking. The bandwidth of
	the 8901 easily handles the 6 MHz frequency
	response required by professional 48 kHz	J9	J10
	AES/EBU digital audio signals. Our entire		Input
	line of both analog and digital distribution
	amplifiers offer passive differential loop-	Loopthru
	through inputs designed to remove common
	mode hum induced by cable runs adjacent to
	AC mains cables.

		Gain	Analog
Analog	AC Coupled
			Video
	DC Coupled
Video
			Outputs
Input

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 window out

Connector type: BNC Impedance: 75Ω

Return loss: >40 dB up to 5 MHz

Output DC: <50 mV

Performance

Frequency response:

•±0.025 dB to 5 MHz

•±0.05 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

Electrical length: 20 ns

Temperature range: 0° to 30°C

Indicators/Controls

User controls: Output gain adjustment range: ±2 dB

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.

8901

Utility analog video distribution amplifier

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