DDU4C
5-TAP, HCMOS-INTERFACED
FIXED DELAY LINE
(SERIES DDU4C)
FEATURES
•
•
•
•
•
•
Five equally spaced outputs
Fits standard 8-pin DIP socket
Low profile
Auto-insertable
Input & outputs fully CMOS interfaced & buffered
2
10 T L fan-out capability
IN
1
14
12
T2
T4
GND
4
10
6
7
8
data
3
®
delay
devices,
inc.
PACKAGES
VCC
T1
T3
T5
IN
N/C
N/C
T2
N/C
T4
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
VDD
N/C
T1
N/C
T3
N/C
T5
DIP
DDU4C-xx Comm.
DDU4C-xxM Military
SMD
DDU4C-xxA2 Comm.
DDU4C-xxB2 Comm.
DDU4C-xxMC2 Military
FUNCTIONAL DESCRIPTION
The DDU4C-series device is a 5-tap digitally buffered delay line. The
signal input (IN) is reproduced at the outputs (T1-T5), shifted in time by an
amount determined by the device dash number (See Table). The total
delay of the line is measured from IN to T5. The nominal tap-to-tap delay
increment is given by one-fifth of the total delay.
PIN DESCRIPTIONS
IN
T1-T5
VDD
GND
Signal Input
Tap Outputs
+5 Volts
Ground
SERIES SPECIFICATIONS
•
•
•
•
•
•
Minimum input pulse width:
20% of total delay
Output rise time:
8ns typical
Supply voltage:
5VDC
±
5%
Supply current:
I
CCL
= 40µa typical
I
CCH
= 10ma typical
Operating temperature:
0° to 70° C
Temp. coefficient of total delay:
300 PPM/°C
DASH NUMBER SPECIFICATIONS
Part
Number
DDU4C-5050
DDU4C-5060
DDU4C-5075
DDU4C-5100
DDU4C-5125
DDU4C-5150
DDU4C-5200
DDU4C-5250
DDU4C-5300
DDU4C-5400
DDU4C-5500
Total
Delay (ns)
50
±
2.5
60
±
3.0
75
±
4.0
100
±
5.0
125
±
6.5
150
±
7.5
200
±
10.0
250
±
12.5
300
±
15.0
400
±
20.0
500
±
25.0
Delay Per
Tap (ns)
10.0
±
3.0
12.0
±
3.0
15.0
±
3.0
20.0
±
3.0
25.0
±
3.0
30.0
±
3.0
40.0
±
4.0
50.0
±
5.0
60.0
±
6.0
80.0
±
8.0
100.0
±
10.0
NOTE: Any dash number between 5050 and 5500
not shown is also available.
20%
20%
20%
20%
20%
VDD IN
T1
T2
T3
T4
T5 GND
DDU4C Functional diagram
©
1997 Data Delay Devices
Doc #97034
12/10/97
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
1
DDU4C
APPLICATION NOTES
HIGH FREQUENCY RESPONSE
The DDU4C 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 DDU4C 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 #97034
12/10/97
DATA DELAY DEVICES, INC.
Tel: 973-773-2299
Fax: 973-773-9672
http://www.datadelay.com
2
DDU4C
PACKAGE DIMENSIONS
14
12
10
8
Lead Material:
Nickel-Iron alloy 42
TIN PLATE
14
12
10
8
.410
TYP.
1
4
6
7
1
4
6
7
.780 MAX.
.280
MAX.
.290
MAX.
.820 MAX.
.020 .320
TYP. MAX.
.130
±.030
.018 TYP.
.600 TYP.
.100
TYP.
.015 TYP.
.010±.002
.018
TYP.
.070 MAX.
.600±.010
.350
MAX.
.020 TYP.
.300
TYP.
DDU4C-xx (Commercial DIP)
DDU4C-xxM (Military DIP)
.020 TYP.
14 13 12 11 10
9
8
.040
TYP.
.270
TYP.
.010 TYP.
.020 TYP.
14 13 12 11 10 9
8
.040
TYP.
.270
TYP.
.050 TYP.
.320
TYP.
.430
TYP.
1
2
3
4
5
6
7
1
2
3
4
5
6
7
.090
.100
.600
.790 MAX.
.300
MAX.
.050
TYP.
.110
.100
.600
.790 MAX.
.350
MAX.
.110
TYP.
DDU4C-xxA2 (Commercial Gull-Wing)
DDU4C-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
.320
MAX.
.050
±.010
DDU4C-xxMC2 (Military SMD)
Doc #97034
12/10/97
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
3
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