DADD MDU14-9M, MDU14-9MC4, MDU14-10, MDU14-10C4, MDU14-8MC4, MDU14-8C4, MDU14-7, MDU14-7C4, MDU14-7M, MDU14-7MC4, MDU14-6M, MDU14-6C4, MDU14-5, MDU14-5M, MDU14-5MC4, MDU14-4M, MDU14-3M, MDU14-3MC4, MDU14-4, MDU14-3, MDU14-25M, MDU14-25MC4, MDU14-2C4, MDU14-2M, MDU14-15C4, MDU14-15M, MDU14-2, MDU14-25, MDU14-12.5MC4, MDU14-12.5M, MDU14-20MC4, MDU14-10M, MDU14-10MC4, MDU14-12.5, MDU14-20, MDU14-20C4, MDU14-20M, MDU14-2.5C4, MDU14-9C4, MDU14-8M, MDU14-6MC4, MDU14-6, MDU14-4MC4, MDU14-4C4, MDU14-3C4, MDU14-2MC4, MDU14-15, MDU14-12.5C4 Datasheet

MDU14

QUAD, ECL-INTERFACED FIXED DELAY LINE (SERIES MDU14)

data 3 ® delay

devices, inc.

FEATURES

PACKAGES

∙Four independent delay lines

∙Fits 24-pin (400mil) DIP socket

∙Auto-insertable

∙Input & outputs fully 100K-ECL interfaced & buffered

MDU14-xx DIP

MDU14-xxM Military DIP

GND	1	24	I1
O1	3	22	I2
O2	5	20	I3
GND	6	19	GND
GND	7	18	VEE
O3	9	16	I4
O4	11
		13	GND

GND	1	24	I1
N/C	2	23	N/C
O1	3	22	I2
N/C	4	21	N/C
O2	5	20	I3
GND	6	19	GND
GND	7	18	VEE
N/C	8	17	N/C
O3	9	16	I4
N/C	10	15	N/C
O4	11	14	N/C
N/C	12	13	GND
DDU14-xxC4			SMD
DDU14-xxMC4			Mil SMD

FUNCTIONAL DESCRIPTION

The MDU14-series device is a 4-in-1 digitally buffered delay line. The signal inputs (I1-I4) are reproduced at the outputs (O1-O4), 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-I4 Signal Inputs

O1-O4 Signal Outputs

VEE -5 Volts

GND Ground

SERIES SPECIFICATIONS

∙Minimum input pulse width: 40% of total delay

∙Output rise time: 2ns typical

∙Supply voltage: -5VDC ± 5%

∙Power dissipation: 500mw typical (no load)

∙Operating temperature: 0° to 85° C

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

O1

O2

O3

O4

100% 100% 100% 100%

VCC

I1

I2

I3

I4

GND

Functional block diagram

©1997 Data Delay Devices

DASH NUMBER SPECIFICATIONS

Part	Total
Number	Delay (ns)
MDU14-2	2.0	± 1.0
MDU14-2.5	2.5	± 1.0
MDU14-3	3.0	± 1.0
MDU14-4	4.0	± 1.0
MDU14-5	5.0	± 1.0
MDU14-6	6.0	± 1.0
MDU14-7	7.0	± 1.0
MDU14-8	8.0	± 1.0
MDU14-9	9.0	± 1.0
MDU14-10	10.0	± 1.0
MDU14-12.5	12.5	± 1.0
MDU14-15	15.0	± 1.0
MDU14-20	20.0	± 1.0
MDU14-25	25.0	± 1.2

NOTE: Any dash number between 2 and 25 not shown is also available.

Doc #97042

DATA DELAY DEVICES, INC.

1

12/15/97

3 Mt. Prospect Ave. Clifton, NJ 07013

MDU14

APPLICATION NOTES

HIGH FREQUENCY RESPONSE

The MDU14 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 MDU14 relies on a stable power supply to produce repeatable delays within the stated tolerances. A 0.1uf capacitor from VEE to GND, located as close as possible to the VEE pin, is recommended. A wide VEE 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	VEE	-7.0	0.3	V
Input Pin Voltage	VIN	VEE - 0.3	0.3	V
Storage Temperature	TSTRG	-55	150	C
Lead Temperature	TLEAD		300	C	10 sec

TABLE 2: DC ELECTRICAL CHARACTERISTICS

(0C to 85C)

PARAMETER	SYMBOL	MIN	TYP	MAX	UNITS	NOTES
High Level Output Voltage	VOH	-1.025		-0.880	V	VIH = MAX,50Ω to -2V
Low Level Output Voltage	VOL	-1.810		-1.620	V	VIL = MIN, 50Ω to -2V
High Level Input Voltage	VIH	-1.165		-0.880	V
Low Level Input Voltage	VIL	-1.810		-1.475	V
High Level Input Current	IIH			340	μA	VIH = MAX
Low Level Input Current	IIL	0.5			μA	VIL = MIN

Doc #97042

DATA DELAY DEVICES, INC.

2

12/15/97

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