DDU12H
Doc #97036
DATA DELAY DEVICES, INC.
1
12/11/97
3 Mt. Prospect Ave. Clifton, NJ 07013
5-TAP, ECL-INTERFACED
FIXED DELAY LINE
(SERIES DDU12H)
FEATURES
PACKAGES
Ten equally spaced outputs
Fits in 300 mil 32-pin DIP socket
Input & outputs fully 10KH-ECL interfaced & buffered
FUNCTIONAL DESCRIPTION
The DDU12H-series device is a 10-tap digitally buffered delay line. The
signal input (IN) is reproduced at the outputs (T1-T10), shifted in time by
an amount determined by the device dash number (See Table). For dash
numbers less than 20, the total delay of the line is measured from T1 to
T10. The nominal tap-to-tap delay increment is given by one-ninth of the
total delay, and the inherent delay from IN to T1 is nominally 1.5ns. For dash numbers greater than or
equal to 20, the total delay of the line is measured from IN to T10. The nominal tap-to-tap delay increment
is given by one-tenth of this number.
SERIES SPECIFICATIONS
Minimum input pulse width: 10% of total delay
Output rise time: 2ns typical
Supply voltage: -5VDC
5%
Power dissipation: 400mw typical (no load)
Operating temperature: -30
to 85
C
Temp. coefficient of total delay: 100 PPM/
C
10%
10%
10%
10%
VCC
GND
IN
T1
T2
T3
T4
T10
Functional diagram for dash numbers < 20
1.5ns
10%
10%
10%
10%
T5
T6
T7
T8
10%
T9
10%
10%
10%
10%
VCC
GND
IN
T1
T2
T3
T4
T10
Functional diagram for dash numbers >= 20
10%
10%
10%
10%
T5
T6
T7
T8
10%
T9
10%
1997 Data Delay Devices
data
delay
devices,
inc.
3
32
31
30
29
24
23
22
21
1
3
4
5
8
9
11
12
16
GND
T2
T4
IN
VEE
GND
T2
T4
VEE
GND
T1
T3
T5
GND
T6
T8
T10
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
GND
T2
T4
IN
N/C
VEE
GND
N/C
N/C
T7
T8
VEE
GND
T1
T3
T5
N/C
N/C
GND
N/C
N/C
T6
T8
T10
DDU12H-xx
DIP
DDU12H-xxM Military DIP
DDU12H-xxC3
SMD
DDU12H-xxMC3 Mil SMD
PIN DESCRIPTIONS
IN
Signal Input
T1-T10 Tap Outputs
VEE
-5 Volts
GND
Ground
DASH NUMBER SPECIFICATIONS
Part
Number
Total
Delay (ns)
Delay Per
Tap (ns)
DDU12H-10
9
1.0 *
1.0
0.3
DDU12H-20
20
2.0
2.0
0.4
DDU12H-25
25
2.0
2.5
0.4
DDU12H-40
40
2.0
4.0
0.5
DDU12H-50
50
2.5
5.0
1.0
DDU12H-75
75
4.0
7.5
1.5
DDU12H-100
100
5.0
10.0
2.0
DDU12H-150
150
7.5
15.0
2.0
DDU12H-200
200
10.0
20.0
2.0
DDU12H-250
250
12.5
25.0
2.0
DDU12H-300
300
15.0
30.0
2.0
DDU12H-400
400
20.0
40.0
2.0
DDU12H-500
500
25.0
50.0
2.5
DDU12H-750
750
37.5
75.0
4.0
DDU12H-1000
1000
50.0
100.0
5.0
DDU12H-1500
1500
75.0
150.0
7.0
* Total delay is referenced to first tap output
Input to first tap = 1.5ns
1ns
NOTE: Any dash number between 10 and 1500
not shown is also available.
DDU12H
Doc #97036
DATA DELAY DEVICES, INC.
2
12/11/97
Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com
APPLICATION NOTES
HIGH FREQUENCY RESPONSE
The DDU12H 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 10% of the total delay and periods as
small as 20% 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 DDU12H 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
V
EE
-7.0
0.3
V
Input Pin Voltage
V
IN
V
EE
- 0.3
0.3
V
Storage Temperature
T
STRG
-55
150
C
Lead Temperature
T
LEAD
300
C
10 sec
TABLE 2: DC ELECTRICAL CHARACTERISTICS
(0C to 75C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
High Level Output Voltage
V
OH
-1.020
-0.735
V
V
IH
= MAX,50
to -2V
Low Level Output Voltage
V
OL
-1.950
-1.600
V
V
IL
= MIN, 50
to -2V
High Level Input Voltage
V
IH
-1.070
V
Low Level Input Voltage
V
IL
-1.480
V
High Level Input Current
I
IH
475
A
V
IH
= MAX
Low Level Input Current
I
IL
0.5
A
V
IL
= MIN
DDU12H
Doc #97036
DATA DELAY DEVICES, INC.
3
12/11/97
3 Mt. Prospect Ave. Clifton, NJ 07013
PACKAGE DIMENSIONS
DDU12H-xx (Commercial DIP)
DDU12H-xxM (Military DIP)
.150
.030
1.650 TYP.
1
3
4
5
8
16
12
11
9
.320
MAX.
.018
TYP.
.400
TYP.
.300
TYP.
.012 TYP.
.020
TYP.
29
30
31
32
21
22
23
24
.100
.200
.300
.400
.700
.800
.900
1.000
1.100
1.500
.075
DDU12H-xxC4 (Commercial SMD)
DDU12H-xxMC4 (Military SMD)
1.280
.020
.882
.005
.020 TYP.
.040 TYP.
.100
.090
1.100
.280
MAX.
.590
MAX.
.010
.002
.050
.010
.710
.005
.007
.005
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
DDU12H
Doc #97036
DATA DELAY DEVICES, INC.
4
12/11/97
Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com
DELAY LINE AUTOMATED TESTING
TEST CONDITIONS
INPUT:
OUTPUT:
Ambient Temperature: 25
o
C
3
o
C
Load:
50
to -2V
Supply Voltage (Vcc): -5.0V
0.1V
C
load
:
5pf
10%
Input Pulse:
Standard 10KH ECL
Threshold: (V
OH
+ V
OL
) / 2
levels
(Rising & Falling)
Source Impedance:
50
Max.
Rise/Fall Time:
2.0 ns Max. (measured
between 20% and 80%)
Pulse Width:
PW
IN
= 1.5 x Total Delay
Period:
PER
IN
= 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)
OSCILLOSCOPE
PULSE
GENERATOR
IN
T2
T3
T4
T5
T6
T7
T8
T9
T10
Timing Diagram For Testing
T
RISE
T
FALL
PER
IN
PW
IN
T
RISE
T
FALL
20%
20%
50%
50%
80%
80%
50%
50%
V
IH
V
IL
V
OH
V
OL
INPUT
SIGNAL
OUTPUT
SIGNAL
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