MDU3C
TRIPLE, HCMOS-INTERFACED
FIXED DELAY LINE
(SERIES MDU3C)
FEATURES
•
•
•
•
•
•
Three independent delay lines
Fits standard 14-pin DIP socket
Low profile
Auto-insertable
Input & outputs fully CMOS interfaced & buffered
2
10 T L fan-out capability
I1
I2
I3
GND
1
3
5
7
14
12
10
8
data
3
®
delay
devices,
inc.
PACKAGES
VDD
O1
O3
O5
I1
N/C
I2
N/C
I3
N/C
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
VDD
N/C
O1
N/C
O2
N/C
O3
MDU3C-xx
MDU3C-xxA2
MDU3C-xxB2
MDU3C-xxM
DIP
Gull-Wing
J-Lead
Military DIP
Military SMD
MDU3C-xxMC2
FUNCTIONAL DESCRIPTION
The MDU3C-series device is a 3-in-1 digitally buffered delay line. The
signal inputs (I1-I3) are reproduced at the outputs (O1-O3), 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-I3
O1-O3
VDD
GND
Signal Inputs
Signal Outputs
+5 Volts
Ground
SERIES SPECIFICATIONS
•
•
•
•
•
•
Minimum input pulse width:
100% of total delay
Output rise time:
8ns typical
Supply voltage:
5VDC
±
5%
Supply current:
I
CCL
= 40µa typical
I
CCH
= 60ma typical
Operating temperature:
0° to 70° C
Temp. coefficient of total delay:
300 PPM/°C
DASH NUMBER SPECIFICATIONS
Part
Number
MDU3C-10
MDU3C-15
MDU3C-20
MDU3C-25
MDU3C-30
MDU3C-40
MDU3C-50
MDU3C-60
MDU3C-75
MDU3C-100
Delay Per
Line (ns)
10
±
2.0
15
±
2.0
20
±
2.0
25
±
2.0
30
±
2.0
40
±
2.0
50
±
2.5
60
±
3.0
75
±
3.7
100
±
5.0
O1
O2
O3
NOTE: Any dash number between 10 and 100
not shown is also available.
100%
100%
100%
VCC
I1
I2
I3
GND
Functional block diagram
©
1997 Data Delay Devices
Doc #97039
12/12/97
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
1
MDU3C
APPLICATION NOTES
HIGH FREQUENCY RESPONSE
The MDU3C 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 MDU3C 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
DC Supply Voltage
Input Pin Voltage
Storage Temperature
Lead Temperature
SYMBOL
V
DD
V
IN
T
STRG
T
LEAD
MIN
-0.3
-0.3
-55
MAX
7.0
V
DD
+0.3
150
300
UNITS
V
V
C
C
NOTES
10 sec
TABLE 2: DC ELECTRICAL CHARACTERISTICS
(0C to 70C, 4.75V to 5.25V)
PARAMETER
High Level Output Voltage
Low Level Output Voltage
High Level Output Current
Low Level Output Current
High Level Input Voltage
Low Level Input Voltage
Input Current
SYMBOL
V
OH
V
OL
I
OH
I
OL
V
IH
V
IL
I
IH
MIN
3.98
TYP
4.4
0.15
MAX
UNITS
V
V
mA
mA
V
V
µA
NOTES
V
DD
= 5.0, I
OH
= MAX
V
IH
= MIN, V
IL
= MAX
V
DD
= 5.0, I
OL
= MAX
V
IH
= MIN, V
IL
= MAX
0.26
-4.0
4.0
3.15
1.35
0.10
V
DD
= 5.0
Doc #97039
12/12/97
DATA DELAY DEVICES, INC.
Tel: 973-773-2299
Fax: 973-773-9672
http://www.datadelay.com
2
MDU3C
PACKAGE DIMENSIONS
14
12
10
8
Lead Material:
Nickel-Iron alloy 42
TIN PLATE
14
12
10
8
.410
TYP.
1
3
5
7
1
3
5
7
.780 MAX.
.280
MAX.
.290
MAX.
.820 MAX.
.020 .320
TYP. MAX.
.130
±.030
.018 TYP.
.600 TYP.
.200
TYP.
.015 TYP.
.010±.002
.018
TYP.
.070 MAX.
.600±.010
.350
MAX.
.020 TYP.
.300
TYP.
MDU3C-xx (Commercial DIP)
MDU3C-xxM (Military DIP)
.020 TYP.
14
12
10
8
.040
TYP.
.270
TYP.
.010 TYP.
14
.020 TYP.
12
10
8
.040
TYP.
.270
TYP.
.050 TYP.
.320
TYP.
.430
TYP.
1
3
5
7
1
3
5
7
.090
.200
.600
.790 MAX.
.300
MAX.
.050
TYP.
.110
.200
.600
.790 MAX.
.350
MAX.
.110
TYP.
MDU3C-xxA2 (Commercial Gull-Wing)
MDU3C-xxB2 (Commercial J-Lead)
.020 TYP.
14 13 12 11 10
9
8
.040
TYP.
.010±.002
.710 .590
±.005
MAX.
.882
±.005
.007
±.005
1
2
3
4
5
6
7
.090
.100
.600
.780±.020
.280
MAX.
.050
±.010
MDU3C-xxMC2 (Military SMD)
Doc #97039
12/12/97
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
3
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