DADD DDU66F-60B2, DDU66F-60A2, DDU66F-60, DDU66F-6, DDU66F-50ME7 Datasheet

DDU66F

Doc #97020 DATA DELAY DEVICES, INC. 1

2/5/97 3 Mt. Prospect Ave. Clifton, NJ 07013

5-TAP, TTL-INTERFACED
FIXED DELAY LINE
(SERIES DDU66F)

FEATURES PACKAGES

• Five equally spaced outputs

• Fits standard 14-pin DIP socket

• Low profile

• Auto-insertable

• Input & outputs fully TTL interfaced & buffered

• 10 T2L fan-out capability

FUNCTIONAL DESCRIPTION

The DDU66F-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.

SERIES SPECIFICATIONS

• Minimum input pulse width: 40% of total delay

• Output rise time: 2ns typical

• Supply voltage: 5VDC ± 5%

• Supply current: I

CCL

= 32ma typical

I

CCH

= 7ma typical

• Operating temperature: 0° to 70° C

• Temp. coefficient of total delay: 100 PPM/°C

25% 25% 25% 25%

VCC GNDIN T1 T2 T3 T4 T5

Functional diagram for dash numbers < 25

3.5ns

20% 20% 20% 20% 20%

VCC GNDIN T1 T2 T3 T4 T5

Functional diagram for dash numbers >= 25

1997 Data Delay Devices

data

delay
devices,

inc.



3

14

12

10

8

1

4

6
7

IN

T2

T4

GND

VCC

T1

T3

T5

1

2
3
4
5
6
7

14

13
12
11
10

9
8

IN

N/C
N/C

T2

N/C

T4

GND

VCC

N/C
T1
N/C
T3
N/C
T5

DDU66F-xxD1 Com. SMD
DDU66F-xxD4 Com. SMD
DDU66F-xxMD1 Mil. SMD
DDU66F-xxMD4 Mil. SMD

DDU66F-xx DIP
DDU66F-xxA2 Gull-Wing
DDU66F-xxB2 J-Lead
DDU66F-xxME7 Military DIP

PIN DESCRIPTIONS

IN Signal Input
T1-T5 Tap Outputs
VCC +5 Volts
GND Ground

DASH NUMBER SPECIFICATIONS

Part

Number

Total

Delay (ns)

Delay Per

Tap (ns)

DDU66F-4

4 ± 1.0 * 1.0 ± 0.5

DDU66F-6

6 ± 1.0 * 1.5 ± 0.5

DDU66F-8

8 ± 2.0 * 2.0 ± 1.0

DDU66F-10

10 ± 2.0 * 2.5 ± 1.0

DDU66F-12

12 ± 2.0 * 3.0 ± 1.0

DDU66F-16

16 ± 2.0 * 4.0 ± 1.5

DDU66F-20

20 ± 3.0 * 5.0 ± 1.5

DDU66F-25

25 ± 3.0 5.0 ± 2.0

DDU66F-30

30 ± 3.0 6.0 ± 2.0

DDU66F-35

35 ± 3.0 7.0 ± 2.0

DDU66F-40

40 ± 3.0 8.0 ± 2.0

DDU66F-45

45 ± 3.0 9.0 ± 3.0

DDU66F-50

50 ± 3.0 10.0 ± 3.0

DDU66F-60

60 ± 3.0 12.0 ± 3.0

DDU66F-75

75 ± 4.0 15.0 ± 3.0

DDU66F-100

100 ± 5.0 20.0 ± 3.0

DDU66F-125

125 ± 6.5 25.0 ± 3.0

DDU66F-150

150 ± 7.5 30.0 ± 3.0

DDU66F-175

175 ± 8.0 35.0 ± 4.0

DDU66F-200

200 ± 10.0 40.0 ± 4.0

DDU66F-250

250 ± 12.5 50.0 ± 5.0

* Total delay is referenced to first tap output
Input to first tap = 3.5ns ±± 1ns

NOTE: Any dash number between 4 and 250 not

DDU66F

Doc #97020 DATA DELAY DEVICES, INC. 2

2/5/97 Tel: [phone] Fax: [phone] http://www.datadelay.com

APPLICATION NOTES

HIGH FREQUENCY RESPONSE

The DDU66F 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

Delay Devices if your application requires device
testing at a specific input condition.

POWER SUPPLY BYPASSING

The DDU66F 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 SYMBOL MIN MAX UNITS NOTES

DC Supply Voltage V

CC

-0.3 7.0 V

Input Pin Voltage V

IN

-0.3 VCC+0.3 V

Storage Temperature T

STRG

-55 150 C

Lead Temperature T

LEAD

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

OH

2.5 3.4 V VCC = MIN, IOH = MAX
VIH = MIN, VIL = MAX

Low Level Output Voltage V

OL

0.35 0.5 V VCC = MIN, IOL = MAX
VIH = MIN, VIL = MAX

High Level Output Current I

OH

-1.0 mA

Low Level Output Current I

OL

20.0 mA

High Level Input Voltage V

IH

2.0 V

Low Level Input Voltage V

IL

0.8 V

Input Clamp Voltage V

IK

-1.2 V VCC = MIN, II = I

IK

Input Current at Maximum
Input Voltage

I

IHH

0.1 mA VCC = MAX, VI = 7.0V

High Level Input Current I

IH

20

µA

VCC = MAX, VI = 2.7V

Low Level Input Current I

IL

-0.6 mA VCC = MAX, VI = 0.5V

Short-circuit Output Current I

OS

-60 -150 mA VCC = MAX
Output High Fan-out 25 Unit
Output Low Fan-out 12.5 Load