DDU37F
MECHANICALLY VARIABLE
TTL DELAY LINE
(SERIES DDU37F)
FEATURES
•
•
•
•
•
•
•
•
•
•
Ideal for “Set and Forget” applications
Multi-turn adjustment screw (approx. 40 turns)
Input & output fully TTL interfaced & buffered
2
(10 T L fan-out capability)
Resolution:
As low as 0.12ns
Minimum delay (T
D0
):
6ns typical
Output rise time:
2ns typical
Min. input pulse width:
20% of maximum delay
Power dissipation:
230mW maximum
Operating temperature:
0° to 70°C (Commercial)
-55° to 125°C (Military)
Temperature coefficient:
100 PPM/°C
data
3
®
delay
devices,
inc.
PACKAGES
VCC OUT
NC
DDU37F
IN
GND
DDU37F-xx
(Commercial)
DDU37F-xxM (Military)
xx = Dash number
FUNCTIONAL DESCRIPTION
The DDU37F-series device is a mechanically variable, FAST-TTL interfaced
delay line. The signal input (IN) is reproduced at the tap output (OUT), shifted
by an amount which can be adjusted between T
D0
and T
D0
+ T
DVAR
, where
T
DVAR
is given by the device dash number (See Table). The device operates
from a single 5V supply and is TTL interfaced, capable of driving up to 10
TTL loads.
PIN DESCRIPTIONS
IN
OUT
VCC
GND
NC
Signal Input
Fixed Output
+5V
Ground
No connection
SERIES SPECIFICATIONS
IN
OUT
DASH NUMBER
SPECIFICATIONS
Part
Number
DDU37F-25
DDU37F-30
DDU37F-40
DDU37F-50
DDU37F-60
DDU37F-70
DDU37F-80
DDU37F-100
DDU37F-120
DDU37F-150
DDU37F-200
T
DVAR
(ns)
15
20
30
40
50
60
70
90
100
130
180
GND
Functional Diagram
VCC OUT
NC
.565
MAX
IN
GND
Note: Other delay times
available on request
.187
1.750
.285
.125
.020
.100
.200
1.640
.200
MIN
.100
.060
.100
.060
.430
Package Dimensions
©
2001 Data Delay Devices
Doc #01016
11/12/01
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
1