Link electronics ANALOG AUDIO DISTRIBUTION AMPLIFIER DigiFlex... User manual

1000 SERIES DIGIFLEX
LINK ELECTRONICS, INC.
ANALOG AUDIO DISTRIBUTION AMPLIFIER
DigiFlex 1651
FEATURES
Low Noise
Eight Mono Outputs or
Four Stereo Outputs
Signal Presence LED
LINK's DigiFlex 1650/1651 Stereo Audio
DistributionAmplifiertakesadvantageofthelatest
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 (150Ω) loads and is
compensated for load capacitance of up to
10,000pF.Itswidebandwidth(>120KHz)willallow
for the distribution of SMPTE Time Code or BTSC
Baseband Stereo.
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.The1650and1651areidenticalwithone
exception: the 1651 has logarithmic bar graph
level meters for the left and right channel signal
indication.
FEATURES
11 Modules per Frame
>100dB S/N Ratio
A/B Buss Monitoring
1651 Level Meters
TheLINK1650/1651hasauniquesignalpresence
indicator on the rear panel. The rear panel module
withbuild-outresistors and fixed terminalblocks 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
framecanhouseupto 11modules. Anaudiobuss
runsthefulllength of the frametoallow 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 DigiFlex1652)
as well as Analog and Digital Video distribution.
Backed by LINK's 10-year warranty, the 1650/651
will provide years of outstanding performance.
LINKELECTRONICS, INC. 2137 Rust Avenue Cape Girardeau, MO 63703-7668
Phone [phone] FAX [phone]
Mounting Frame Options
1000 - Single Power Supply, Holds 11 Modules
1000/2 - Dual Power Supply, Holds 10 Modules
7200 - Mounting Frame, Holds 1 Module
MADE IN THE USA

1651/111302 1014 REARCELL 1021 REARCELL
DIGIFLEX 1651 AUDIO DISTRIBUTION AMP
SPECIFICATIONS
INPUT:
Impedance: ................................................... 20KOhm,±2%Balanced
Max.Level:......................................................... 20dBu,Differential
Common Mode Range: .......................................................±10Volts
Common Mode Rejection: ............................................... >85dB@60Hz
OUTPUT:
Channels: ........................................................................ 2
Number of Outputs per Channel: ...................................................... 4
Impedance: ................................................................ 66Ohms
Max.Level:..................................................................+18dBu
..................................................................Load = 4 X 150Ω
PERFORMANCE:
Gain Range: ..............................................................-inf.to+8dB
S/NRatio:................................................. >100dB A WTD +8dBu 0 Gain
Frequency Response: ........................................... +/-0.2dB,20Hzto20KHz
TotalHarmonicDistortion: ...........................................<0.01%+8dBu0Gain
Load = 4 X 150Ω
Crosstalk:........................................................ 90dB, 20Hz to 20KHz
DC Offset: ...................................................................<10mV
QuiescentDrainCurrent: .......................................................±100mA
MonitorSwitch: ............................................. Placessignal on Frame Buss
LevelIndication:.................................................. BarGraph (1651 only)
Temperature Range: ........................................................0°to50°C
INTERNAL ADJUSTMENTS
AudioLevel: ............................................................ ResistiveTrim
Common Mode Adjustment: ...............................................ResistiveTrim
MECHANICAL:
Height: ........................................................................ 3.2"
Width:......................................................................... 1.0"
Length: ....................................................................... 10.0"
Weight:.......................................................................8.0oz
LINK ELECTRONICS, INC.
2137 Rust Avenue
Cape Girardeau, MO 63703
Phone: [phone]
FAX: [phone]
PROFESSIONAL SERIES--
modular system products--by LINK