ECL-INTERFACED FIXED DELAY LINE FIXED DELAY LINE
DDU18
8-TAP, ECL-INTERFACED FIXED DELAY LINE (SERIES DDU18)
FEATURES
• • • Eight equally spaced outputs Fits in 400 mil...
Description
DDU18
8-TAP, ECL-INTERFACED FIXED DELAY LINE (SERIES DDU18)
FEATURES
Eight equally spaced outputs Fits in 400 mil 24-pin DIP socket Input & outputs fully 100K-ECL interfaced & buffered
GND T1 T2 T3 GND GND T4 T5 T6 1 3 4 5 6 7 8 9 10 11 12 13 19 18 24
data 3 delay devices, inc.
PACKAGES
IN
GND VEE
GND N/C T1 T2 T3 GND GND T4 T5 T6 T7 T8
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
IN N/C N/C N/C N/C GND VEE N/C N/C N/C N/C GND
DDU18-xx DDU18-xxM
DIP Military DIP
T7 T8
GND
DDU18-xxC4 DDU18-xxMC4
SMD Mil SMD
FUNCTIONAL DESCRIPTION
PIN DESCRIPTIONS
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The DDU18-series device is a 8-tap digitally buffered delay line. The IN Signal Input signal input (IN) is reproduced at the outputs (T1-T8), shifted in time by an T1-T8 Tap Outputs amount determined by the device dash number (See Table). For dash VEE -5 Volts numbers less than 16, the total delay of the line is measured from T1 to GND Ground T8. The nominal tap-to-tap delay increment is given by one-seventh of the total delay, and the inherent delay from IN to T1 is nominally 2.0ns. For dash numbers greater than or equal to 16, the total delay of the line is measured from IN to T8. The nominal tap-to-tap delay increment is given by one-eighth of this number.
SERIES SPECIFICATIONS
Minimum input pulse width: 40% of total delay Output rise time: 2ns typical Supply voltage: -5VDC ± 5% Power dissipation: 500mw typical (no load) Operating temperature: 0° to 85° C ...
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