Link electronics ANALOG AUDIO DISTRIBUTION AMPLIFIER DigiFlex... Manuale utente

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 573 334 4433 FAX 573 334 9255

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: 573 334 4433

FAX: 573 334 9255

PROFESSIONAL SERIES--

modular system products--by LINK

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