DDU7C Datasheet, PDF (1/4 Pages) Data Delay Devices, Inc. – 10-TAP, TTL-INTERFACED FIXED DELAY LINE

10-TAP, TTL-INTERFACED
FIXED DELAY LINE
(SERIES DDU7C)
DDU7C
data
delay
3
®
devices, inc.
FEATURES
• Ten equally spaced outputs
• Fits standard 16-pin DIP socket
• Low profile
• Auto-insertable
• Input & outputs fully CMOS interfaced & buffered
• 10 T²L fan-out capability
PACKAGES
IN
T2
T4
T6
T8
T10
N/C
GND
1 16 VDD
2 15 T1
3 14 T3
4 13 T5
5 12 T7
6 11 T9
7 10 N/C
8 9 N/C
IN 1 14 VDD
N/C 2 13 T1
T2 3 12 T3
T4 4 11 T5
T6 5 10 T7
T8 6 9 T9
GND 7 8 T10
DDU7C-xx
DDU7C-xxA3
DDU7C-xxB3
DDU7F-xxMC3
DIP
Gull-Wing
J-Lead
Military SMD
Military DIP
DDU7C-xxM
FUNCTIONAL DESCRIPTION
PIN DESCRIPTIONS
The DDU7C-series device is a 10-tap digitally buffered delay line. The
IN Signal Input
signal input (IN) is reproduced at the outputs (T1-T10), shifted in time by an _{T1-T10 Tap Outputs}
amount determined by the device dash number. The nominal tap-to-tap
VDD +5 Volts
delay increment is given by 1/10 of the dash number. For dash numbers
GND Ground
less than 50, the total delay of the line is measured from T1 to T10, with the
nominal value given by 9 times the increment. The inherent delay from IN to T1 is nominally 8.0ns. For
dash numbers greater than or equal to 50, the total delay of the line is measured from IN to T10, with the
nominal value given by the dash number.
SERIES SPECIFICATIONS
• Minimum input pulse width: 20% 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
3.5ns 10% 10% 10% 10% 10% 10% 10% 10% 10%
VCC IN T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 GND
Functional diagram for dash numbers < 50
DASH NUMBER SPEC.’S
Part
Number
DDU7C-25
DDU7C-100
DDU7C-150
DDU7C-200
DDU7C-250
DDU7C-300
DDU7C-400
DDU7C-500
Total
Delay (ns)
22.5 ± 2.0 *
100 ± 5.0
150 ± 7.5
200 ± 10.0
250 ± 12.5
300 ± 15.0
400 ± 20.0
500 ± 25.0
Delay Per
Tap (ns)
2.5 ± 1.0
10.0 ± 2.0
15.0 ± 2.0
20.0 ± 2.0
25.0 ± 2.0
30.0 ± 3.0
40.0 ± 4.0
50.0 ± 5.0
* Total delay is referenced to first tap
Input to first tap = 8.0ns ± 2ns
NOTE: Any dash number between 25 and
500 not shown is also available.
10% 10% 10% 10% 10% 10% 10% 10% 10% 10%
VCC IN T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 GND
Functional diagram for dash numbers >= 50
©1997 Data Delay Devices
Doc #97019
DATA DELAY DEVICES, INC.
1
1/30/97
3 Mt. Prospect Ave. Clifton, NJ 07013