DDU222F Datasheet, PDF (1/4 Pages) Data Delay Devices, Inc. – 5-TAP, TTL-INTERFACED FIXED DELAY LINE (SERIES DDU222F)

5-TAP, TTL-INTERFACED
FIXED DELAY LINE
(SERIES DDU222F)
DDU222F
data
delay
3
®
devices, inc.
FEATURES
• Five 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
12345678
VCC IN T1 T2 T3 T4 T5 GND
DDU222F-xx Commercial
DDU222F-xxM Military
FUNCTIONAL DESCRIPTION
PIN DESCRIPTIONS
The DDU222F-series device is a 5-tap digitally buffered delay line. The
signal input (IN) is reproduced at the outputs (T1-T5), shifted in time by an
amount given by the device dash number. For dash numbers less than
25, the total delay of the line is measured from T1 to T5, with the nominal
IN
T1-T5
VCC
GND
Signal Input
Tap Outputs
+5 Volts
Ground
value given by the dash number. The nominal tap-to-tap delay increment
is given by 1/4 of this number. The inherent delay from IN to T1 is nominally 3.5ns. For dash numbers
greater than or equal to 25, the total delay of the line is measured from IN to T5, with the nominal value
given by the dash number. The nominal tap-to-tap delay increment is given by 1/5 of this number.
SERIES SPECIFICATIONS
• Minimum input pulse width: 40% of total delay
• Output rise time: 2ns typical
• Supply voltage: 5VDC ± 5%
• Supply current: I_CCL = 32ma typical
I_CCH = 7ma typical
• Operating temperature: 0° to 70° C
• Temp. coefficient of total delay: 100 PPM/°C
3.5ns
25%
25%
25%
25%
VCC IN
T1
T2
T3
T4
T5 GND
Functional diagram for dash numbers < 25
20%
20%
20%
20%
20%
VCC IN
T1
T2
T3
T4
T5 GND
Functional diagram for dash numbers >= 25
©1997 Data Delay Devices
DASH NUMBER SPECIFICATIONS
Part
Number
DDU222F-4
DDU222F-6
DDU222F-8
DDU222F-10
DDU222F-12
DDU222F-16
DDU222F-25
DDU222F-30
DDU222F-35
DDU222F-40
DDU222F-45
DDU222F-50
DDU222F-60
DDU222F-75
DDU222F-100
DDU222F-125
DDU222F-150
DDU222F-175
DDU222F-200
DDU222F-250
Total
Delay (ns)
4 ± 1.0 *
6 ± 1.0 *
8 ± 2.0 *
10 ± 2.0 *
12 ± 2.0 *
16 ± 2.0 *
25 ± 3.0
30 ± 3.0
35 ± 3.0
40 ± 3.0
45 ± 3.0
50 ± 3.0
60 ± 3.0
75 ± 4.0
100 ± 5.0
125 ± 6.5
150 ± 7.5
175 ± 8.0
200 ± 10.0
250 ± 12.5
Delay Per
Tap (ns)
1.0 ± 0.5
1.5 ± 0.5
2.0 ± 1.0
2.5 ± 1.0
3.0 ± 1.0
4.0 ± 1.5
5.0 ± 2.0
6.0 ± 2.0
7.0 ± 2.0
8.0 ± 2.0
9.0 ± 3.0
10.0 ± 3.0
12.0 ± 3.0
15.0 ± 3.0
20.0 ± 3.0
25.0 ± 3.0
30.0 ± 3.0
35.0 ± 4.0
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 4 and 250 not
shown is also available.
Doc #97011
DATA DELAY DEVICES, INC.
1
1/27/97
3 Mt. Prospect Ave. Clifton, NJ 07013