Datasheet DDU7F-50MC3, DDU7F-50M, DDU7F-50B2, DDU7F-50A2, DDU7F-500MC3 Datasheet (DADD)

DDU7F

Doc #97016 DATA DELAY DEVICES, INC. 1

1/29/97 3 Mt. Prospect Ave. Clifton, NJ 07013

10-TAP, TTL-INTERFACED
FIXED DELAY LINE
(SERIES DDU7F)

FEATURES PACKAGES

• Ten 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 DDU7F-series device is a 10-tap digitally buffered delay line. The
signal input (IN) is reproduced at the outputs (T1-T10), shifted in time by an
amount determined by the device dash number. The nominal tap-to-tap
delay increment is given by 1/10 of the dash number. For dash numbers
less than 50, the total delay of the line is measured from T1 to T10, with the
nominal value given by 9 times the increment. The inherent delay from IN to T1 is nominally 3.5ns. For
dash numbers greater than or equal to 50, the total delay of the line is measured from IN to T10, with the
nominal value given by the dash number.

SERIES SPECIFICATIONS

• Minimum input pulse width: 20% of total delay

• Output rise time: 2ns typical

• Supply voltage: 5VDC ± 5%

• Supply current: I

CCL

= 50ma typical

I

CCH

= 15ma typical

• Operating temperature: 0° to 70° C

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

10% 10% 10% 10%

VCC GNDIN T1 T2 T3 T4 T10

Functional diagram for dash numbers < 50

3.5ns 10% 10% 10% 10%

T5 T6 T7 T8

10%

T9

10% 10% 10% 10%

VCC GNDIN T1 T2 T3 T4 T10

Functional diagram for dash numbers >= 50

10% 10% 10% 10%

T5 T6 T7 T8

10%

T9

10%

1997 Data Delay Devices

data

delay
devices, inc.



3

1

2
3
4
5
6
7
8

16

15
14
13
12
11
10

9

IN

T2
T4
T6

T8
T10
N/C

GND

VCC

T1
T3
T5
T7
T9
N/C
N/C

14
13
12
11
10

9
8

1
2
3
4
5
6
7

IN

N/C

T2
T4
T6
T8

GND

VCC
T1
T3
T5
T7
T9
T10

DDU7F-xx DIP
DDU7F-xxA2 Gull-Wing
DDU7F-xxB2 J-Lead
DDU7F-xxM Military DIP

Military SMD
DDU7F-xxMC3

PIN DESCRIPTIONS

IN Signal Input
T1-T10 Tap Outputs
VCC +5 Volts
GND Ground

DASH NUMBER SPEC.’S

Part

Number

Total

Delay (ns)

Delay Per

Tap (ns)

DDU7F-10

9 ± 2.0 * 1.0 ± 0.5

DDU7F-20

18 ± 2.0 * 2.0 ± 1.0

DDU7F-25

22.5 ± 2.0 * 2.5 ± 1.0

DDU7F-50

50 ± 2.5 5.0 ± 2.0

DDU7F-100

100 ± 5.0 10.0 ± 3.0

DDU7F-150

150 ± 7.5 15.0 ± 3.0

DDU7F-200

200 ± 10.0 20.0 ± 3.0

DDU7F-250

250 ± 12.5 25.0 ± 3.0

DDU7F-300

300 ± 15.0 30.0 ± 3.0

DDU7F-400

400 ± 20.0 40.0 ± 4.0

DDU7F-500

500 ± 25.0 50.0 ± 5.0

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

NOTE: Any dash number between 10 and

500 not shown is also available.

DDU7F

Doc #97016 DATA DELAY DEVICES, INC. 2

1/29/97 Tel: [phone] Fax: [phone] http://www.datadelay.com

APPLICATION NOTES

HIGH FREQUENCY RESPONSE

The DDU7F 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 20% of the total delay and periods as
small as 40% 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 DDU7F 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

DDU7F

Doc #97016 DATA DELAY DEVICES, INC. 3

1/29/97 3 Mt. Prospect Ave. Clifton, NJ 07013

PACKAGE DIMENSIONS

DDU7F-xx (Commercial DIP)

.780 MAX.

1 2 3 4 5 6 7

814 13 12 11 10 9

.290
MAX.

.015 TYP.

.070 MAX.

.018
TYP.

.600±.010

6 Equal spaces

each .100±.010

Non-Accumulative

.280
MAX.

.350
MAX.

.010±.002

Lead Material:
Nickel-Iron alloy 42
TIN PLATE

DDU7F-xxM (Military DIP)

.195

±.010

.830 MAX.

1 2 3 4 5 6 7

8

.290

MAX.

.020
TYP.

.440
MAX.

.300
TYP.

.010 TYP.

.600
TYP.

.030

±.005

91011121314

DDU7F-xxA2 (Commercial Gull-Wing)

.790 MAX.

.430
TYP.

.020 TYP.

.040
TYP.

.100

.090

.600

.300
MAX.

.270
TYP.

.010 TYP.

.050

TYP.

1 2 3 4 5 6 7

891011121314

DDU7F-xxB2 (Commercial J-Lead)

.790 MAX.

1 2 3 4 5 6 7

8

.320
TYP.

.020 TYP.

.040
TYP.

.100

.110

.600

.350
MAX.

.270
TYP.

.050 TYP.

.110

TYP.

91011121314

.880±.020

.882

±

.005

.020 TYP.

.040
TYP.

.100

.090

.700

.280
MAX.

.590

MAX.

.010±.002

.050

±.010

.710

±

.005

.007

±

.005

1 2 3 4 5 6 7 8

910111213141516

DDU7F-xxMC3 (Military Gull-Wing)

DDU7F

Doc #97016 DATA DELAY DEVICES, INC. 4

1/29/97 Tel: [phone] Fax: [phone] http://www.datadelay.com

DELAY LINE AUTOMATED TESTING

TEST CONDITIONS

INPUT: OUTPUT:
Ambient Temperature: 25oC ± 3oC Load: 1 FAST-TTL Gate
Supply Voltage (Vcc): 5.0V ± 0.1V C

load

: 5pf ± 10%

Input Pulse: High = 3.0V ± 0.1V Threshold: 1.5V (Rising & Falling)

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: PWIN = 1.5 x Total Delay
Period: PERIN = 10 x Total Delay

NOTE: The above conditions are for test only and do not in any way restrict the operation of the device.

T1

OUT

TRIGINREF

TRIG

Test Setup

DEVICE UNDER

TEST (DUT)

TIME INTERVAL

COUNTER

PULSE

GENERATOR

COMPUTER

SYSTEM

PRINTER

INT2T3T4T5T6T7T8T9

T10

Timing Diagram For Testing

T

RISE

T

FALL

PER

IN

PW

IN

T

RISE

T

FALL

0.6V

0.6V

1.5V

1.5V

2.4V

2.4V

1.5V

1.5V

V

IH

V

IL

V

OH

V

OL

INPUT
SIGNAL

OUTPUT
SIGNAL