Cisco CETUS - CYGNUS DigiStar Headend Products (PAL) Data Sheet

 

 

 
 

The Model 64557 Multiple-Output Driver Amplifier is designed 
for use in CATV headends or hubs and provides up to 8-way 
RF output.  It functions as an RF driver amplifier for optical 
transmitters.  One Model 64457 Driver Amplifier can drive 8 
transmitter modules in the OptoStar optical platform chassis, 
and it is an excellent driver amplifier for optical transmitter 
modules. 
 
The Model 64457 is a standard 19-inch (1 RU) chassis and 
utilizes 1 GHz GaAsFET gain block and surface mounting technology to provide high performance. 
 
 
 
 
 
 
 
 

•  40~1000 MHz bandwidth 

•  Advanced 1 GHz GaAs gain block PHD technology to drive 8 optical transmitter modules 

•  Plug-in pad via RF output test point for easy adjustment of RF drive level 

•  Insert different attenuators to adjust forward equalization 

•  SMD technology on main board 

•  Splitter ports have high isolation performance and low insertion loss 

•  Good frequency response 

•  Good input/output return loss