DADD MDU28C-45, MDU28C-40, MDU28C-40A1, MDU28C-40B1, MDU28C-40M, MDU28C-35B1, MDU28C-35M, MDU28C-35MD1, MDU28C-25, MDU28C-25A1, MDU28C-25B1, MDU28C-25M, MDU28C-20MD4, MDU28C-50B1, MDU28C-50M, MDU28C-20B1, MDU28C-20M, MDU28C-50A1, MDU28C-45B1, MDU28C-45M, MDU28C-45MD1, MDU28C-45MD4, MDU28C-45A1, MDU28C-75MD4, MDU28C-75B1, MDU28C-35A1, MDU28C-30A1, MDU28C-30B1, MDU28C-30M, MDU28C-30MD1, MDU28C-30MD4, MDU28C-30, MDU28C-60M, MDU28C-60MD1, MDU28C-60MD4, MDU28C-75, MDU28C-75A1, MDU28C-60B1, MDU28C-50MD1, MDU28C-50MD4, MDU28C-60, MDU28C-10, MDU28C-100, MDU28C-10B1, MDU28C-10M, MDU28C-10MD4, MDU28C-12, MDU28C-100MD4, MDU28C-100M, MDU28C-16MD4, MDU28C-20, MDU28C-20A1, MDU28C-100A1, MDU28C-16M, MDU28C-12B1, MDU28C-12M, MDU28C-12MD1, MDU28C-12MD4, MDU28C-16, MDU28C-35MD4, MDU28C-25MD1, MDU28C-20MD1, MDU28C-50, MDU28C-75M, MDU28C-35, MDU28C-25MD4, MDU28C-60A1, MDU28C-12A1, MDU28C-10A1, MDU28C-100B1, MDU28C-16MD1 Datasheet

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DADD MDU28C-45, MDU28C-40, MDU28C-40A1, MDU28C-40B1, MDU28C-40M, MDU28C-35B1, MDU28C-35M, MDU28C-35MD1, MDU28C-25, MDU28C-25A1, MDU28C-25B1, MDU28C-25M, MDU28C-20MD4, MDU28C-50B1, MDU28C-50M, MDU28C-20B1, MDU28C-20M, MDU28C-50A1, MDU28C-45B1, MDU28C-45M, MDU28C-45MD1, MDU28C-45MD4, MDU28C-45A1, MDU28C-75MD4, MDU28C-75B1, MDU28C-35A1, MDU28C-30A1, MDU28C-30B1, MDU28C-30M, MDU28C-30MD1, MDU28C-30MD4, MDU28C-30, MDU28C-60M, MDU28C-60MD1, MDU28C-60MD4, MDU28C-75, MDU28C-75A1, MDU28C-60B1, MDU28C-50MD1, MDU28C-50MD4, MDU28C-60, MDU28C-10, MDU28C-100, MDU28C-10B1, MDU28C-10M, MDU28C-10MD4, MDU28C-12, MDU28C-100MD4, MDU28C-100M, MDU28C-16MD4, MDU28C-20, MDU28C-20A1, MDU28C-100A1, MDU28C-16M, MDU28C-12B1, MDU28C-12M, MDU28C-12MD1, MDU28C-12MD4, MDU28C-16, MDU28C-35MD4, MDU28C-25MD1, MDU28C-20MD1, MDU28C-50, MDU28C-75M, MDU28C-35, MDU28C-25MD4, MDU28C-60A1, MDU28C-12A1, MDU28C-10A1, MDU28C-100B1, MDU28C-16MD1 Datasheet

 

 

 

MDU28C

 

 

 

 

 

DUAL, HCMOS-INTERFACED

data

 

 

®

 

3

FIXED DELAY LINE

delay

 

(SERIES MDU28C)

devices, inc.

 

 

 

 

 

FEATURES

Two independent delay lines

Fits standard 8-pin DIP socket

Low profile

Auto-insertable

Input & outputs fully CMOS interfaced & buffered

10 T2L fan-out capability

PACKAGES

I1

 

1

8

 

VDD

I1

1

14

 

VDD

 

 

 

 

 

N/C

2

13

 

N/C

 

 

 

N/C

 

 

2

7

 

O1

N/C

3

12

 

O1

 

 

 

 

 

 

 

N/C

4

11

 

N/C

 

 

 

 

 

 

 

 

 

 

 

 

I2

 

 

3

6

 

N/C

I2

5

10

 

N/C

 

 

 

 

 

 

 

N/C

6

9

 

N/C

 

 

 

 

 

 

 

 

GND

 

 

4

5

 

O2

GND

7

8

 

O2

 

 

 

 

 

 

 

 

 

 

 

 

 

MDU28C-xx

DIP

 

Military SMD

 

MDU28C-xxA1 Gull-Wing

MDU28C-xxMD1

MDU28C-xxB1 J-Lead

MDU28C-xxMD4

MDU28C-xxM

Military DIP

 

 

 

 

 

FUNCTIONAL DESCRIPTION

The MDU28C-series device is a 2-in-1 digitally buffered delay line. The signal inputs (I1-I2) are reproduced at the outputs (O1-O2), shifted in time by an amount determined by the device dash number (See Table). The delay lines function completely independently of each other.

PIN DESCRIPTIONS

I1-I2 Signal Inputs

O1-O2 Signal Outputs

VDD +5 Volts

GND Ground

SERIES SPECIFICATIONS

Minimum input pulse width: 100% of total delay

Output rise time: 8ns typical

Supply voltage: 5VDC ± 5%

Supply current: ICCL = 40μa typical

ICCH = 45ma typical

Operating temperature: 0° to 70° C

Temp. coefficient of total delay: 300 PPM/°C

O1 O2

100% 100%

VDD

I1

I2

GND

Functional block diagram

DASH NUMBER SPECIFICATIONS

Part

Delay Per

Number

Line (ns)

MDU28C-10

10 ± 2.0

MDU28C-12

12 ± 2.0

MDU28C-16

16 ± 2.0

MDU28C-20

20 ± 2.0

MDU28C-25

25 ± 2.0

MDU28C-30

30 ± 2.0

MDU28C-35

35 ± 2.0

MDU28C-40

40 ± 2.0

MDU28C-45

45 ± 2.2

MDU28C-50

50 ± 2.5

MDU28C-60

60 ± 3.0

MDU28C-75

75 ± 3.7

MDU28C-100

100 ± 5.0

NOTE: Any dash number between 10 and 100 not shown is also available.

©1997 Data Delay Devices

Doc #97040

DATA DELAY DEVICES, INC.

1

12/12/97

3 Mt. Prospect Ave. Clifton, NJ 07013

MDU28C

APPLICATION NOTES

HIGH FREQUENCY RESPONSE

The MDU28C 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 100% of the total delay and periods as small as 200% 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 MDU28C relies on a stable power supply to produce repeatable delays within the stated tolerances. A 0.1uf capacitor from VDD to GND, located as close as possible to the VDD pin, is recommended. A wide VDD 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

VDD

-0.3

7.0

V

 

Input Pin Voltage

VIN

-0.3

VDD+0.3

V

 

Storage Temperature

TSTRG

-55

150

C

 

Lead Temperature

TLEAD

 

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

VOH

3.98

4.4

 

V

VDD = 5.0, IOH = MAX

 

 

 

 

 

 

VIH = MIN, VIL = MAX

Low Level Output Voltage

VOL

 

0.15

0.26

V

VDD = 5.0, IOL = MAX

 

 

 

 

 

 

VIH = MIN, VIL = MAX

High Level Output Current

IOH

 

 

-4.0

mA

 

Low Level Output Current

IOL

 

 

4.0

mA

 

High Level Input Voltage

VIH

3.15

 

 

V

 

Low Level Input Voltage

VIL

 

 

1.35

V

 

Input Current

IIH

 

 

0.10

μA

VDD = 5.0

Doc #97040

DATA DELAY DEVICES, INC.

2

12/12/97

Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com

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