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