DADD DDU222F-75M, DDU222F-75, DDU222F-6M, DDU222F-60M, DDU222F-60 Datasheet
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DDU222F
5-TAP, TTL-INTERFACED
data
3
2345678
1
FIXED DELAY LINE
(SERIES DDU222F)
delay
devices, inc.
FEATURES PACKAGES
• Five equally spaced outputs
• Very narrow device (SIP package)
• Stackable for PC board economy
• Input & outputs fully TTL interfaced & buffered
• 10 T2L fan-out capability
FUNCTIONAL DESCRIPTION
The DDU222F-series device is a 5-tap digitally buffered delay line. The
signal input (IN) is reproduced at the outputs (T1-T5), shifted in time by an
amount given by the device dash number. For dash numbers less than
25, the total delay of the line is measured from T1 to T5, with the nominal
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 3.5ns. For dash numbers
greater than or equal to 25, 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.
VCC IN T1 T2 T3 T4 T5 GND
DDU222F-xx Commercial
DDU222F-xxM Military
PIN DESCRIPTIONS
IN Signal Input
T1-T5 Tap Outputs
VCC +5 Volts
GND Ground
SERIES SPECIFICATIONS
• Minimum input pulse width: 40% of total delay
• Output rise time: 2ns typical
• Supply voltage: 5VDC ± 5%
• Supply current: I
I
• Operating temperature: 0° to 70° C
• Temp. coefficient of total delay: 100 PPM/°C
3.5ns
VCC GNDIN T1 T2 T3 T4 T5
Functional diagram for dash numbers < 25
20% 20% 20% 20% 20%
VCC GNDIN T1 T2 T3 T4 T5
Functional diagram for dash numbers >= 25
1997 Data Delay Devices
= 32ma typical
CCL
= 7ma typical
CCH
25% 25% 25% 25%
DASH NUMBER SPECIFICATIONS
Part
Number
DDU222F-4
DDU222F-6
DDU222F-8
DDU222F-10
DDU222F-12
DDU222F-16
DDU222F-25
DDU222F-30
DDU222F-35
DDU222F-40
DDU222F-45
DDU222F-50
DDU222F-60
DDU222F-75
DDU222F-100
DDU222F-125
DDU222F-150
DDU222F-175
DDU222F-200
DDU222F-250
* Total delay is referenced to first tap output
Input to first tap = 3.5ns ±± 1ns
NOTE: Any dash number between 4 and 250 not
shown is also available.
Total
Delay (ns)
4 ± 1.0 * 1.0 ± 0.5
6 ± 1.0 * 1.5 ± 0.5
8 ± 2.0 * 2.0 ± 1.0
10 ± 2.0 * 2.5 ± 1.0
12 ± 2.0 * 3.0 ± 1.0
16 ± 2.0 * 4.0 ± 1.5
25 ± 3.0 5.0 ± 2.0
30 ± 3.0 6.0 ± 2.0
35 ± 3.0 7.0 ± 2.0
40 ± 3.0 8.0 ± 2.0
45 ± 3.0 9.0 ± 3.0
50 ± 3.0 10.0 ± 3.0
60 ± 3.0 12.0 ± 3.0
75 ± 4.0 15.0 ± 3.0
100 ± 5.0 20.0 ± 3.0
125 ± 6.5 25.0 ± 3.0
150 ± 7.5 30.0 ± 3.0
175 ± 8.0 35.0 ± 4.0
200 ± 10.0 40.0 ± 4.0
250 ± 12.5 50.0 ± 5.0
Delay Per
Tap (ns)
Doc #97011 DATA DELAY DEVICES, INC. 1
1/27/97 3 Mt. Prospect Ave. Clifton, NJ 07013
DDU222F
APPLICATION NOTES
HIGH FREQUENCY RESPONSE
The DDU222F 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 40% of the total delay and periods as
small as 80% of the total delay (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
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
Delay Devices if your application requires device
testing at a specific input condition.
POWER SUPPLY BYPASSING
The DDU222F 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 #97011 DATA DELAY DEVICES, INC. 2
1/27/97 Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com
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