DDU66F
Ò
5-TAP, TTL-INTERFACED
FIXED DELAY LINE
(SERIES DDU66F)
data
delay
devices,
3
inc.
FEATURES
PACKAGES
IN
VCC
1
4
14
12
10
8
·
·
·
·
·
Five equally spaced outputs
Fits standard 14-pin DIP socket
Low profile
Auto-insertable
Input & outputs fully TTL interfaced & buffered
1
2
3
4
5
6
7
14
13
12
11
10
9
VCC
N/C
T1
N/C
T3
N/C
T5
IN
N/C
N/C
T2
N/C
T4
T1
T2
T3
T4
6
7
GND
T5
8
GND
·
10 T2L fan-out capability
DDU66F-xx
DDU66F-xxA2 Gull-Wing
DDU66F-xxB2 J-Lead
DIP
DDU66F-xxD1
DDU66F-xxD4
DDU66F-xxMD1 Mil. SMD
DDU66F-xxMD4 Mil. SMD
Com. SMD
Com. SMD
DDU66F-xxME7 Military DIP
FUNCTIONAL DESCRIPTION
PIN DESCRIPTIONS
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
IN
T1-T5 Tap Outputs
VCC +5 Volts
GND Ground
Signal Input
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.
DASH NUMBER SPECIFICATIONS
SERIES SPECIFICATIONS
Part
Number
DDU66F-4
DDU66F-6
Total
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
·
·
·
·
Minimum input pulse width: 40% of total delay
Output rise time: 2ns typical
Supply voltage: 5VDC ± 5%
Supply current: ICCL = 32ma typical
ICCH = 7ma typical
Operating temperature: 0° to 70° C
Temp. coefficient of total delay: 100 PPM/°C
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
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
·
·
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
* Total delay is referenced to first tap output
Input to first tap = 3.5ns ± 1ns
Functional diagram for dash numbers >= 25
Ó1997 Data Delay Devices
NOTE: Any dash number between 4 and 250 not
Doc #97020
2/5/97
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
1
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