DDU224F Datasheet, PDF (1/4 Pages) Data Delay Devices, Inc. – 10-TAP, TTL-INTERFACED FIXED DELAY LINE

10-TAP, TTL-INTERFACED
FIXED DELAY LINE
(SERIES DDU224F)
DDU224F
data
delay
3
®
devices, inc.
FEATURES
• Ten equally spaced outputs
• Very narrow device (SIP package)
• Stackable for PC board economy
• Input & outputs fully TTL interfaced & buffered
• 10 T²L fan-out capability
PACKAGES
1 2 3 4 5 6 7 8 9 10 11 12 13 14
VCC N/C IN T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 GND
DDU224F-xx Commercial
DDU224F-xxM Military
FUNCTIONAL DESCRIPTION
PIN DESCRIPTIONS
The DDU224F-series device is a 10-tap digitally buffered delay line. The
signal input (IN) is reproduced at the outputs (T1-T10), shifted in time by
an amount determined by the device dash number. The nominal tap-to-
tap delay increment is given by 1/10 of the dash number. For dash
numbers less than 50, the total delay of the line is measured from T1 to
IN Signal Input
T1-T10 Tap Outputs
VCC +5 Volts
GND Ground
T10, with the nominal value given by 9 times the increment. The inherent delay from IN to T1 is nominally
3.5ns. For dash numbers greater than or equal to 50, the total delay of the line is measured from IN to
T10, with the nominal value given by the dash number.
SERIES SPECIFICATIONS
• Minimum input pulse width: 20% of total delay
• Output rise time: 2ns typical
• Supply voltage: 5VDC ± 5%
• Supply current: I_CCL = 50ma typical
I_CCH = 15ma typical
• Operating temperature: 0° to 70° C
• Temp. coefficient of total delay: 100 PPM/°C
DASH NUMBER SPECIFICATIONS
Part
Number
DDU224F-10
DDU224F-20
DDU224F-25
DDU224F-50
DDU224F-100
DDU224F-150
DDU224F-200
DDU224F-250
DDU224F-300
DDU224F-400
DDU224F-500
Total
Delay (ns)
9 ± 2.0 *
18 ± 2.0 *
22.5 ± 2.0 *
50 ± 2.5
100 ± 5.0
150 ± 7.5
200 ± 10.0
250 ± 12.5
300 ± 15.0
400 ± 20.0
500 ± 25.0
Delay Per
Tap (ns)
1.0 ± 0.5
2.0 ± 1.0
2.5 ± 1.0
5.0 ± 2.0
10.0 ± 3.0
15.0 ± 3.0
20.0 ± 3.0
25.0 ± 3.0
30.0 ± 3.0
40.0 ± 4.0
50.0 ± 5.0
* Total delay is referenced to first tap output
Input to first tap = 3.5ns ± 1ns
NOTE: Any dash number between 10 and 500 not
shown is also available.
©1997 Data Delay Devices
Doc #97015
DATA DELAY DEVICES, INC.
1
1/29/97
3 Mt. Prospect Ave. Clifton, NJ 07013