DADD DDU47FM, DDU47F Datasheet
DDU47F
MECHANICALLY VARIABLE
.135
.875 MAX
.020
.170
.010
.100
6 x .100 = .600
.135
.020
data
3
2001 Data Delay Devices
TTL DELAY LINE
(SERIES DDU47F)
delay
devices,
FEATURES PACKAGES
• Ideal for “Set and Forget” applications
• Multi-turn adjustment screw (approx. 15 turns)
• Surface-mount package
• Input & output fully TTL interfaced & buffered
(10 T2L fan-out capability)
• Resolution: 0.25ns typical
• Adjustment range: 5ns to 25ns
• Output rise time: 2ns typical
• Min. input pulse width: 10ns
• Power dissipation: 230mW maximum
• Operating temperature: 0° to 70°C (Commercial)
-55° to 125°C (Military)
FUNCTIONAL DESCRIPTION
The DDU47F-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 5ns and 25ns. The device
operates from a single 5V supply and is TTL interfaced, capable of driving up
to 10 TTL loads.
IN
1
14
NC
2
13
NC
3
12
NC
4
11
NC
5
10
NC
6
9
GND
8
7
DDU47F (Commercial)
DDU47FM (Military)
PIN DESCRIPTIONS
IN Signal Input
OUT Fixed Output
VCC +5V
GND Ground
NC No connection
inc.
VCC
NC
NC
NC
NC
NC
OUT
SERIES SPECIFICATIONS
IN OUT
GND
Functional Diagram
.470
MAX
.200
MIN
.395
MAX
Package Dimensions
Doc #01018 DATA DELAY DEVICES, INC. 1
11/12/01 3 Mt. Prospect Ave. Clifton, NJ 07013
DDU47F
APPLICATION NOTES
HIGH FREQUENCY RESPONSE
The DDU47F tolerances are guaranteed for input
pulse widths and periods greater than those
specified in the test conditions. Although the
device will function properly for pulse widths as
small as 10ns and periods as small 20ns (for a
symmetric input), the delays may deviate from
their values at low frequency. However, for a
given input condition, the deviation will be
repeatable from pulse to pulse. Contact technical
support at Data Delay Devices if your application
DEVICE SPECIFICATIONS
TABLE 1: ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL MIN MAX UNITS NOTES
DC Supply Voltage V
Input Pin Voltage V
Storage Temperature T
Lead Temperature T
CC
IN
STRG
LEAD
requires device testing at a specific input
condition.
POWER SUPPLY BYPASSING
The DDU47F relies on a stable power supply to
produce repeatable delays within the stated
tolerances. A 0.1uf capacitor from VCC to GND,
located as close as possible to the VCC pin, is
recommended. A wide VCC trace and a clean
ground plane should be used.
-0.3 7.0 V
-0.3 VDD+0.3 V
-55 150 C
300 C 10 sec
TABLE 2: DC ELECTRICAL CHARACTERISTICS
(0C to 70C, 4.75V to 5.25V)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
High Level Output Voltage V
Low Level Output Voltage V
High Level Output Current I
Low Level Output Current I
High Level Input Voltage V
Low Level Input Voltage V
Input Clamp Voltage V
Input Current at Maximum
I
OH
OL
OH
OL
IH
IL
IK
IHH
Input Voltage
High Level Input Current I
Low Level Input Current I
Short-circuit Output Current I
IH
IL
OS
Output High Fan-out 25 Unit
Output Low Fan-out 12.5 Load
2.5 3.4 V VCC = MIN, IOH = MAX
0.35 0.5 V VCC = MIN, IOL = MAX
-1.0 mA
20.0 mA
2.0 V
0.8 V
-1.2 V VCC = MIN, II = I
0.1 mA VCC = MAX, VI = 7.0V
20
µA
-0.6 mA VCC = MAX, VI = 0.5V
-60 -150 mA VCC = MAX
VIH = MIN, VIL = MAX
VIH = MIN, VIL = MAX
IK
VCC = MAX, VI = 2.7V
Doc #01018 DATA DELAY DEVICES, INC. 2
11/12/01 Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com
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