DDU8F Datasheet, PDF (1/4 Pages) Data Delay Devices, Inc. – 5-TAP, TTL-INTERFACED FIXED DELAY LINE

5-TAP, TTL-INTERFACED
FIXED DELAY LINE
(SERIES DDU8F)
DDU8F
data
delay
3
®
devices, inc.
FEATURES
• Five equally spaced outputs
• Fits standard 8-pin DIP socket
• Low profile
• Auto-insertable
• Input & outputs fully TTL interfaced & buffered
• 10 T²L fan-out capability
PACKAGES
IN 1
T2 2
T4 3
GND 4
8 VCC
7 T1
6 T3
5 T5
IN 1
N/C 2
N/C 3
T2 4
N/C 5
T4 6
GND 7
14 VDD
13 N/C
12 T1
11 N/C
10 T3
9 N/C
8 T5
DDU8F-xx DIP
DDU8F-xxA1 Gull-Wing
DDU8F-xxB1 J-Lead
DDU8F-xxM Military DIP
Military SMD
DDU8F-xxMD1
DDU8F-xxMD4
FUNCTIONAL DESCRIPTION
PIN DESCRIPTIONS
The DDU8F-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 determined by the device dash number (See Table). For dash
VCC +5 Volts
numbers less than 5025, the total delay of the line is measured from T1 to _{GND Ground}
T5. The nominal tap-to-tap delay increment is given by one-fourth of the
total delay, and the inherent delay from IN to T1 is nominally 3.5ns. For dash numbers greater than or
equal to 5025, the total delay of the line is measured from IN to T5. The nominal tap-to-tap delay
increment is given by one-fifth 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 < 5025
20%
20%
20%
20%
20%
VCC IN
T1
T2
T3
T4
T5 GND
Functional diagram for dash numbers >= 5025
©1997 Data Delay Devices
DASH NUMBER SPECIFICATIONS
Part
Number
DDU8F-5004
DDU8F-5006
DDU8F-5008
DDU8F-5010
DDU8F-5012
DDU8F-5016
DDU8F-5020
DDU8F-5025
DDU8F-5030
DDU8F-5035
DDU8F-5040
DDU8F-5045
DDU8F-5050
DDU8F-5060
DDU8F-5075
DDU8F-5100
DDU8F-5125
DDU8F-5150
DDU8F-5175
DDU8F-5200
DDU8F-5250
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 ± 2.0
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 5004 and 5250
not shown is also available.
Doc #97012
DATA DELAY DEVICES, INC.
1
1/28/97
3 Mt. Prospect Ave. Clifton, NJ 07013