DDU8F
Doc #97012 DATA DELAY DEVICES, INC. 1
1/28/97 3 Mt. Prospect Ave. Clifton, NJ 07013
5-TAP, TTL-INTERFACED
FIXED DELAY LINE
(SERIES DDU8F)
FEATURES PACKAGES
• Five equally spaced outputs
• Fits standard 8-pin DIP socket
• Low profile
• Auto-insertable
• Input & outputs fully TTL interfaced & buffered
• 10 T2L fan-out capability
FUNCTIONAL DESCRIPTION
The DDU8F-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). For dash
numbers less than 5025, the total delay of the line is measured from T1 to
T5. The nominal tap-to-tap delay increment is given by one-fourth of the
total delay, and the inherent delay from IN to T1 is nominally 3.5ns. For dash numbers greater than or
equal to 5025, 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 this number.
SERIES SPECIFICATIONS
• Minimum input pulse width: 40% of total delay
• Output rise time: 2ns typical
• Supply voltage: 5VDC ± 5%
• Supply current: ICCL = 32ma typical
ICCH = 7ma typical
• Operating temperature: 0° to 70° C
• Temp. coefficient of total delay: 100 PPM/°C
25% 25% 25% 25%
VCC GNDIN T1 T2 T3 T4 T5
Functional diagram for dash numbers < 5025
3.5ns
20% 20% 20% 20% 20%
VCC GNDIN T1 T2 T3 T4 T5
Functional diagram for dash numbers >= 5025
1997 Data Delay Devices
data
delay
devices, inc.
3
1
2
3
4
5
6
7
14
13
12
11
10
9
8
IN
N/C
N/C
T2
N/C
T4
GND
VDD
N/C
T1
N/C
T3
N/C
T5
8
7
6
5
1
2
3
4
IN
T2
T4
GND
VCC
T1
T3
T5
DDU8F-xx DIP
DDU8F-xxA1 Gull-Wing
DDU8F-xxB1 J-Lead
DDU8F-xxM Military DIP
Military SMD
DDU8F-xxMD1
DDU8F-xxMD4
PIN DESCRIPTIONS
IN Signal Input
T1-T5 Tap Outputs
VCC +5 Volts
GND Ground
DASH NUMBER SPECIFICATIONS
Part
Number Total
Delay (ns) Delay Per
Tap (ns)
DDU8F-5004 4 ± 1.0 * 1.0 ± 0.5
DDU8F-5006 6 ± 1.0 * 1.5 ± 0.5
DDU8F-5008 8 ± 2.0 * 2.0 ± 1.0
DDU8F-5010 10 ± 2.0 * 2.5 ± 1.0
DDU8F-5012 12 ± 2.0 * 3.0 ± 1.0
DDU8F-5016 16 ± 2.0 * 4.0 ± 1.5
DDU8F-5020 20 ± 3.0 * 5.0 ± 2.0
DDU8F-5025 25 ± 3.0 5.0 ± 2.0
DDU8F-5030 30 ± 3.0 6.0 ± 2.0
DDU8F-5035 35 ± 3.0 7.0 ± 2.0
DDU8F-5040 40 ± 3.0 8.0 ± 2.0
DDU8F-5045 45 ± 3.0 9.0 ± 3.0
DDU8F-5050 50 ± 3.0 10.0 ± 3.0
DDU8F-5060 60 ± 3.0 12.0 ± 3.0
DDU8F-5075 75 ± 4.0 15.0 ± 3.0
DDU8F-5100 100 ± 5.0 20.0 ± 3.0
DDU8F-5125 125 ± 6.5 25.0 ± 3.0
DDU8F-5150 150 ± 7.5 30.0 ± 3.0
DDU8F-5175 175 ± 8.0 35.0 ± 4.0
DDU8F-5200 200 ± 10.0 40.0 ± 4.0
DDU8F-5250 250 ± 12.5 50.0 ± 5.0
* Total delay is referenced to first tap output
Input to first tap = 3.5ns ±± 1ns
NOTE: Any dash number between 5004 and 5250
not shown is also available.
DDU8F
Doc #97012 DATA DELAY DEVICES, INC. 2
1/28/97 Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com
APPLICATION NOTES
HIGH FREQUENCY RESPONSE
The DDU8F 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 DDU8F relies on a stable power supply to
produce repeatable delays within the stated
tolerances. A 0.1uf capacitor from VCC to GND,
located as close as possible to the VCC pin, is
recommended. A wide VCC 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 VCC -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 C10 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 2.5 3.4 V VCC = MIN, IOH = MAX
VIH = MIN, VIL = MAX
Low Level Output Voltage VOL 0.35 0.5 V VCC = MIN, IOL = MAX
VIH = MIN, VIL = MAX
High Level Output Current IOH -1.0 mA
Low Level Output Current IOL 20.0 mA
High Level Input Voltage VIH 2.0 V
Low Level Input Voltage VIL 0.8 V
Input Clamp Voltage VIK -1.2 V VCC = MIN, II = IIK
Input Current at Maximum
Input Voltage IIHH 0.1 mA VCC = MAX, VI = 7.0V
High Level Input Current IIH 20 µAVCC = MAX, VI = 2.7V
Low Level Input Current IIL -0.6 mA VCC = MAX, VI = 0.5V
Short-circuit Output Current IOS -60 -150 mA VCC = MAX
Output High Fan-out 25 Unit
Output Low Fan-out 12.5 Load
DDU8F
Doc #97012 DATA DELAY DEVICES, INC. 3
1/28/97 3 Mt. Prospect Ave. Clifton, NJ 07013
PACKAGE DIMENSIONS
.500 MAX.
1234
5678
.290
MAX.
.015 TYP.
.070 MAX.
.018
TYP. .300±.010
3 Equal spaces
each .100±.010
Non-Accumulative
.280
MAX.
.350
MAX.
.010±.002
Lead Material:
Nickel-Iron alloy 42
TIN PLATE
.180
TYP.
.500 MAX.
1 2 3 4
5678
.290
MAX.
.020
TYP.
.440
MAX.
.300
TYP.
.010 TYP.
.300
TYP.
.020
TYP.
DDU8F-xxM (Military DIP)
.520 MAX.
1234
5678 .430
TYP.
.020
TYP. .040
TYP.
.100
.110
.300
.300
MAX.
.270
TYP.
.010 TYP.
.050
TYP.
DDU8F-xxA1 (Commercial Gull-Wing)
.520 MAX.
1234
5678 .320
TYP.
.020
TYP. .040
TYP.
.100
.110
.300
.350
MAX.
.270
TYP.
.050 TYP.
.110
TYP.
DDU8F-xxB1 (Commercial J-Lead)
.510 MAX.
1
7 8
.510
MAX.
14
.300
TYP.
.017
.050
.100
.100
.300
.300
.008
.045
.025
.360
TYP.
.065
TYP. .065
TYP.
.200 MAX. (Com)
.225 MAX. (Mil)
DDU8F-xxD1 (Commercial SMD)
DDU8F-xxMD1 (Military SMD)
.080
.080
.510 MAX.
1
7 8
14
.510
MAX.
.017
.050
.300
TYP.
.100
.100
.650
.008
.005
.065 TYP.
.360 TYP.
.065 TYP.
DDU8F-xxD4 (Commercial SMD)
DDU8F-xxMD4 (Military SMD)
.200 MAX. (Com)
.225 MAX. (Mil)
DDU8F
Doc #97012 DATA DELAY DEVICES, INC. 4
1/28/97 Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com
DELAY LINE AUTOMATED TESTING
TEST CONDITIONS
INPUT: OUTPUT:
Ambient Temperature: 25oC ± 3oCLoad: 1 FAST-TTL Gate
Supply Voltage (Vcc): 5.0V ± 0.1V Cload:5pf ± 10%
Input Pulse: High = 3.0V ± 0.1V Threshold: 1.5V (Rising & Falling)
Low = 0.0V ± 0.1V
Source Impedance: 50Ω Max.
Rise/Fall Time: 3.0 ns Max. (measured
between 0.6V and 2.4V )
Pulse Width: PWIN = 1.5 x Total Delay
Period: PERIN = 10 x Total Delay
NOTE: The above conditions are for test only and do not in any way restrict the operation of the device.
T1
OUT
TRIG
IN
REF
TRIG
Test Setup
DEVICE UNDER
TEST (DUT) TIME INTERVAL
COUNTER
PULSE
GENERATOR
COMPUTER
SYSTEM
PRINTER
IN
T2
T3
T4
T5
Timing Diagram For Testing
TRISE TFALL
PERIN
PWIN
TRISE TFALL
0.6V
0.6V
1.5V
1.5V
2.4V
2.4V
1.5V
1.5V
VIH VIL
VOH VOL
INPUT
SIGNAL
OUTPUT
SIGNAL