DDU66F
Doc #97020
2/5/97
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
1
5-TAP, TTL-INTERFACED
FIXED DELAY LINE
(SERIES DDU66F)
FEATURES
PACKAGES
Five equally spaced outputs
Fits standard 14-pin DIP socket
Low profile
Auto-insertable
Input & outputs fully TTL interfaced & buffered
10 T
2
L fan-out capability
FUNCTIONAL DESCRIPTION
The DDU66F-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 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
25%
25%
25%
25%
VCC
GND
IN
T1
T2
T3
T4
T5
Functional diagram for dash numbers < 25
3.5ns
20%
20%
20%
20%
20%
VCC
GND
IN
T1
T2
T3
T4
T5
Functional diagram for dash numbers >= 25
1997 Data Delay Devices
data
delay
devices,
inc.
3
14
12
10
8
1
4
6
7
IN
T2
T4
GND
VCC
T1
T3
T5
1
2
3
4
5
6
7
14
13
12
11
10
9
8
IN
N/C
N/C
T2
N/C
T4
GND
VCC
N/C
T1
N/C
T3
N/C
T5
DDU66F-xxD1
DDU66F-xxD4
DDU66F-xxMD1
DDU66F-xxMD4
Com. SMD
Com. SMD
Mil. SMD
Mil. SMD
DDU66F-xx
DDU66F-xxA2
DDU66F-xxB2
DDU66F-xxME7 Military DIP
DIP
Gull-Wing
J-Lead
PIN DESCRIPTIONS
IN
T1-T5
VCC
GND
Signal Input
Tap Outputs
+5 Volts
Ground
DASH NUMBER SPECIFICATIONS
Part
Number
DDU66F-4
DDU66F-6
DDU66F-8
DDU66F-10
DDU66F-12
DDU66F-16
DDU66F-20
DDU66F-25
DDU66F-30
DDU66F-35
DDU66F-40
DDU66F-45
DDU66F-50
DDU66F-60
DDU66F-75
DDU66F-100
DDU66F-125
DDU66F-150
DDU66F-175
DDU66F-200
DDU66F-250
Total
Delay (ns)
4
±
1.0 *
6
±
1.0 *
8
±
2.0 *
10
±
2.0 *
12
±
2.0 *
16
±
2.0 *
20
±
3.0 *
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
±
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.