Link electronic Stereo Amplifier DigiFlex 1651 User Manual

1000 SERIES DIGIFLEX  
LINK ELECTRONICS, INC.  
ANALOG AUDIO DISTRIBUTION AMPLIFIER  
DigiFlex 1651  
MADE IN THE USA  
Mounting Frame Options  
1000 - Single Power Supply, Holds 11 Modules  
1000/2 - Dual Power Supply, Holds 10 Modules  
7200 - Mounting Frame, Holds 1 Module  
FEATURES  
FEATURES  
Low Noise  
11 Modules per Frame  
>100dB S/N Ratio  
A/B Buss Monitoring  
1651 Level Meters  
Eight Mono Outputs or  
Four Stereo Outputs  
Signal Presence LED  
LINK's DigiFlex 1650/1651 Stereo Audio  
Distribution Amplifier takes advantage of the latest  
in Operational Amplifier technology. The front end  
is high-impedance, balanced, with high common-  
mode rejection. The output amplifier is capable of  
driving low impedance (150) loads and is  
compensated for load capacitance of up to  
10,000pF. Its wide bandwidth (>120KHz) will allow  
for the distribution of SMPTE Time Code or BTSC  
Baseband Stereo.  
The LINK 1650/1651hasa unique signal presence  
indicator on the rear panel. The rear panel module  
with build-out resistors and fixed terminal blocks is  
the model 1014. Plug-in terminal blocks are  
available on the 1021 Rear Cell. The front panel  
features a DC power supply monitor LED.  
The LINK 1650/1651 is designed to reside in  
LINK's DigiFlex 1000 frame. This rugged 2RU  
frame can house up to 11 modules. An audio buss  
runs the full length of the frame to allow monitoring  
of any of the resident audio distribution amplifiers  
by a single monitoring amplifier, model 1626. A  
switch on the front of the module places the audio  
signal on the frame buss. The versatile DigiFlex  
1000 frame can also accommodate AES/EBU  
Digital Audio distribution (using the DigiFlex 1652)  
as well as Analog and Digital Video distribution.  
Backed by LINK's 10-year warranty, the 1650/651  
will provide years of outstanding performance.  
Ultralow-noisecomponents(includingmetal-oxide  
resistors) are used throughout the audio signal  
path. Both the input buffer and output driver offer  
noise figures of <7nV/Hz1/2. In addition, extreme  
care has been taken in the printed circuit board  
design to reduce noise and improve channel  
isolation. The 1650 and 1651 are identical with one  
exception: the 1651 has logarithmic bar graph  
level meters for the left and right channel signal  
indication.  
LINK  
ELECTRONICS, INC. 2137 Rust Avenue Cape Girardeau, MO 63703-7668  
Phone 573 334 4433 FAX 573 334 9255  
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