TCD DELAY LINES
ULTRA HIGH SPEED - WIDE BANDWIDTH
The TCD range are ultra high speed balanced delay lines for wideband applications. Various impedances can
be supplied with delay times up to a possible 10 ns. Delay lines can be cascaded to increase delay time. The
TCD-B range provides an amplitude roll off of less than 0.7 dB to 150 MHz with >20 dB return loss. The
TCD-M range has a 3 dB bandwidth of >300 MHz with better than 14 dB return loss. Both ranges have flat
group delay which together with above characteristics provide minimal ringing with applied rise times as fast
as 3 ns.
Applications include use in video distribution systems where twisted pair cables have been used rather than
more expensive coaxial cable. Insertion of these delay lines prior to the cable driver or after the cable receiver,
allow the matching of delays of individual RGB channels to prevent mis-alignment of pixels in computer
generated graphics. This mis-alignment can be introduced by variations in the number of twists per unit length
which can create a differential delay between pairs of conductors within the same cable.
Type No:
TCD
Impedance
Ω
eg 050
075
150
Delay ns
eg 01
02
05
10
Bandwidth
eg B = 150 MHz
M = 300 MHz
Example Part No: TCD075B02 is a 75
Ω,
150 MHz, 2 ns delay line.
Maximum allowable product of Impedance (Ω) x Delay (ns) is 500 in package DR00165A
(eg 050 x 10 = 500). Please contact factory regarding increased impedance/delay products.
Specification:
Part Number
Passband
Passband roll-off
Insertion loss at 100 kHz
Delay time tolerance
Group delay ripple
Return loss
Package
TCD...B..
150 MHz
< 0.7 dB
< 0.1 dB
< ± 5%
< 0.5 ns
> 20 dB
DR00165A
TCD...M..
300 MHz
< 3 dB
< 0.1 dB
< ± 5%
< 2 ns
> 14 dB
DR00165A
© Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change without notice
FARA065.DOC
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Jun-99(B)
FARADAY [ FARADAY TECHNOLOGY ]
