DDU66C
5-TAP, HCMOS-INTERFACED
FIXED DELAY LINE
(SERIES DDU66C)
FEATURES
•
•
•
•
•
•
Five equally spaced outputs
Fits standard 14-pin DIP socket
Low profile
Auto-insertable
Input & outputs fully CMOS interfaced & buffered
10 T L fan-out capability
2
IN
1
14
12
T2
T4
GND
4
10
6
7
8
T5
T3
VDD
T1
data
3
delay
devices,
inc.
PACKAGES
IN
N/C
N/C
T2
N/C
T4
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
VDD
N/C
T1
N/C
T3
N/C
T5
DDU66C-xx
DIP
DDU66C-xxA2 Gull-Wing
DDU66C-xxB2 J-Lead
DDU66C-xxME7 Military DIP
DDU66C-xxD1
DDU66C-xxD4
DDU66C-xxMD1
DDU66C-xxMD4
Com. SMD
Com. SMD
Mil. SMD
Mil. SMD
FUNCTIONAL DESCRIPTION
PIN DESCRIPTIONS
The DDU66C-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
DDU66C-10
DDU66C-20
DDU66C-50
DDU66C-60
DDU66C-75
DDU66C-100
DDU66C-125
DDU66C-150
DDU66C-175
DDU66C-200
DDU66C-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%
VCC IN
T1
T2
T3
T4
T5 GND
* Total delay is referenced to first tap output
Input to first tap = 8.0ns
±
2ns
NOTE: Any dash number between 10 and 250 not
shown is also available.
Functional diagram for dash numbers < 40
20%
20%
20%
20%
20%
VCC IN
T1
T2
T3
T4
T5 GND
Functional diagram for dash numbers >= 40
1997
Data Delay Devices
Doc #97021
2/5/97
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
1
DATADELAY [ DATA DELAY DEVICES, INC. ]
