DATADELAY DDU47F

DDU47F
data 3 
delay
devices, inc.
MECHANICALLY VARIABLE
TTL DELAY LINE
(SERIES DDU47F)
FEATURES
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PACKAGES
Ideal for “Set and Forget” applications
Multi-turn adjustment screw (approx. 15 turns)
Surface-mount package
Input & output fully TTL interfaced & buffered
2
(10 T L 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)
IN
1
14
VCC
NC
2
13
NC
NC
3
12
NC
NC
4
11
NC
NC
5
10
NC
NC
6
9
NC
GND
7
8
OUT
DDU47F
(Commercial)
DDU47FM (Military)
FUNCTIONAL DESCRIPTION
PIN DESCRIPTIONS
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
OUT
VCC
GND
NC
Signal Input
Fixed Output
+5V
Ground
No connection
SERIES SPECIFICATIONS
IN
OUT
GND
Functional Diagram
.470
MAX
.200
MIN
.020
.170
.875 MAX
.135
.395
MAX
.010
.100
.020
.135
6 x .100 = .600
Package Dimensions
 2001 Data Delay Devices
Doc #01018
11/12/01
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
1
DDU47F
APPLICATION NOTES
requires device testing at a specific input
condition.
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
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.
DEVICE SPECIFICATIONS
TABLE 1: ABSOLUTE MAXIMUM RATINGS
PARAMETER
DC Supply Voltage
Input Pin Voltage
Storage Temperature
Lead Temperature
SYMBOL
VCC
VIN
TSTRG
TLEAD
MIN
-0.3
-0.3
-55
MAX
7.0
VDD+0.3
150
300
UNITS
V
V
C
C
NOTES
10 sec
TABLE 2: DC ELECTRICAL CHARACTERISTICS
(0C to 70C, 4.75V to 5.25V)
PARAMETER
High Level Output Voltage
SYMBOL
VOH
Low Level Output Voltage
VOL
High Level Output Current
Low Level Output Current
High Level Input Voltage
Low Level Input Voltage
Input Clamp Voltage
Input Current at Maximum
Input Voltage
High Level Input Current
Low Level Input Current
Short-circuit Output Current
Output High Fan-out
Output Low Fan-out
IOH
IOL
VIH
VIL
VIK
IIHH
Doc #01018
11/12/01
IIH
IIL
IOS
MIN
2.5
TYP
3.4
MAX
UNITS
V
0.35
0.5
V
-1.0
20.0
0.8
-1.2
0.1
mA
mA
V
V
V
mA
20
-0.6
-150
25
12.5
µA
mA
mA
Unit
Load
2.0
-60
NOTES
VCC = MIN, IOH = MAX
VIH = MIN, VIL = MAX
VCC = MIN, IOL = MAX
VIH = MIN, VIL = MAX
VCC = MIN, II = IIK
VCC = MAX, VI = 7.0V
VCC = MAX, VI = 2.7V
VCC = MAX, VI = 0.5V
VCC = MAX
DATA DELAY DEVICES, INC.
Tel: 973-773-2299
Fax: 973-773-9672
http://www.datadelay.com
2
DDU47F
DELAY LINE AUTOMATED TESTING
TEST CONDITIONS
INPUT:
o
o
Ambient Temperature: 25 C ± 3 C
Supply Voltage (Vcc): 5.0V ± 0.1V
Input Pulse:
High = 3.0V ± 0.1V
Low = 0.0V ± 0.1V
Source Impedance:
50Ω Max.
Rise/Fall Time:
3.0 ns Max. (measured
between 0.6V and 2.4V )
Pulse Width:
100ns
Period:
1000ns
OUTPUT:
Load:
Cload:
Threshold:
1 FAST-TTL Gate
5pf ± 10%
1.5V (Rising & Falling)
NOTE: The above conditions are for test only and do not in any way restrict the operation of the device.
OUT
PULSE
GENERATOR
IN
DEVICE UNDER
TEST (DUT)
IN
OUT
TRIG
TRIG
OSCILLOSCOPE
Test Setup
PERIN
PWIN
TRISE
INPUT
SIGNAL
TFALL
VIH
2.4
1.5
0.6
2.4
1.5
0.6
VIL
DRISE
OUTPUT
SIGNAL
DFALL
VOH
1.5
1.5
VOL
Timing Diagram For Testing
Doc #01018
11/12/01
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
3