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DDU222C

Description
5-TAP, HCMOS-INTERFACED FIXED DELAY LINE (SERIES DDU222C)
File Size28KB,4 Pages
ManufacturerData Delay Devices
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DDU222C Overview

5-TAP, HCMOS-INTERFACED FIXED DELAY LINE (SERIES DDU222C)

DDU222C
5-TAP, HCMOS-INTERFACED
FIXED DELAY LINE
(SERIES DDU222C)
FEATURES
Five equally spaced outputs
Very narrow device (SIP package)
Stackable for PC board economy
Input & outputs fully CMOS interfaced & buffered
10 T
2
L fan-out capability
data
3
®
delay
devices,
inc.
PACKAGES
1 2 3 4 5 6 7 8
VCC IN T1 T2 T3 T4 T5 GND
DDU222F-xx Commercial
DDU222F-xxM Military
FUNCTIONAL DESCRIPTION
PIN DESCRIPTIONS
The DDU222C-series device is a 5-tap digitally buffered delay line. The
IN
Signal Input
signal input (IN) is reproduced at the outputs (T1-T5), shifted in time by an
T1-T5 Tap Outputs
amount given by the device dash number. For dash numbers less than
VDD +5 Volts
40, the total delay of the line is measured from T1 to T5, with the nominal
GND 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 8.0ns. For dash numbers
greater than or equal to 40, 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:
8ns typical
Supply voltage:
5VDC
±
5%
Supply current:
I
CCL
= 40µa typical
I
CCH
= 10ma typical
Operating temperature:
0° to 70° C
Temp. coefficient of total delay:
300 PPM/°C
DASH NUMBER SPECIFICATIONS
Part
Number
DDU222C-10
DDU222C-20
DDU222C-50
DDU222C-60
DDU222C-75
DDU222C-100
DDU222C-125
DDU222C-150
DDU222C-175
DDU222C-200
DDU222C-250
Total
Delay (ns)
10
±
2.0 *
20
±
2.0 *
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)
2.5
±
1.0
5.0
±
2.0
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
8.0ns
25%
25%
25%
25%
* Total delay is referenced to first tap output
Input to first tap = 8.0ns
±
2ns
VCC IN
T1
T2
T3
T4
T5 GND
Functional diagram for dash numbers < 40
20%
20%
20%
20%
20%
NOTE: Any dash number between 10 and 250 not
shown is also available.
VCC IN
T1
T2
T3
T4
T5 GND
Functional diagram for dash numbers >= 40
©
1997 Data Delay Devices
Doc #97014
1/28/97
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
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