DDU12H
5-TAP, ECL-INTERFACED
FIXED DELAY LINE
(SERIES DDU12H)
FEATURES
GND
1
3
4
5
32
31
30
29
data
3
®
delay
devices,
inc.
PACKAGES
GND
T1
T3
T5
T2
T4
IN
•
•
•
Ten equally spaced outputs
Fits in 300 mil 32-pin DIP socket
Input & outputs fully 10KH-ECL interfaced & buffered
VEE
GND
T2
T4
8
9
11
12
24
23
22
21
GND
T6
T8
T10
GND
T2
T4
IN
N/C
VEE
GND
N/C
N/C
T7
T8
VEE
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
T1
T3
T5
N/C
N/C
GND
N/C
N/C
T6
T8
T10
DDU12H-xx DIP
DDU12H-xxM Military DIP
VEE
16
DDU12H-xxC3 SMD
DDU12H-xxMC3 Mil SMD
FUNCTIONAL DESCRIPTION
PIN DESCRIPTIONS
The DDU12H-series device is a 10-tap digitally buffered delay line. The
IN
Signal Input
signal input (IN) is reproduced at the outputs (T1-T10), shifted in time by
T1-T10 Tap Outputs
an amount determined by the device dash number (See Table). For dash
VEE
-5 Volts
numbers less than 20, the total delay of the line is measured from T1 to
GND Ground
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
1.5ns
10%
10%
10%
10%
10%
10%
10%
10%
10%
DASH NUMBER SPECIFICATIONS
Part
Number
DDU12H-10
DDU12H-20
DDU12H-25
DDU12H-40
DDU12H-50
DDU12H-75
DDU12H-100
DDU12H-150
DDU12H-200
DDU12H-250
DDU12H-300
DDU12H-400
DDU12H-500
DDU12H-750
DDU12H-1000
DDU12H-1500
Total
Delay (ns)
9
±
1.0 *
20
±
2.0
25
±
2.0
40
±
2.0
50
±
2.5
75
±
4.0
100
±
5.0
150
±
7.5
200
±
10.0
250
±
12.5
300
±
15.0
400
±
20.0
500
±
25.0
750
±
37.5
1000
±
50.0
1500
±
75.0
Delay Per
Tap (ns)
1.0
±
0.3
2.0
±
0.4
2.5
±
0.4
4.0
±
0.5
5.0
±
1.0
7.5
±
1.5
10.0
±
2.0
15.0
±
2.0
20.0
±
2.0
25.0
±
2.0
30.0
±
2.0
40.0
±
2.0
50.0
±
2.5
75.0
±
4.0
100.0
±
5.0
150.0
±
7.0
VCC IN
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10 GND
Functional diagram for dash numbers < 20
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
VCC IN
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10 GND
* 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.
Functional diagram for dash numbers >= 20
©
1997 Data Delay Devices
Doc #97036
12/11/97
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
1
DDU12H
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
DC Supply Voltage
Input Pin Voltage
Storage Temperature
Lead Temperature
SYMBOL
V
EE
V
IN
T
STRG
T
LEAD
MIN
-7.0
V
EE
- 0.3
-55
MAX
0.3
0.3
150
300
UNITS
V
V
C
C
NOTES
10 sec
TABLE 2: DC ELECTRICAL CHARACTERISTICS
(0C to 75C)
PARAMETER
High Level Output Voltage
Low Level Output Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
Low Level Input Current
SYMBOL
V
OH
V
OL
V
IH
V
IL
I
IH
I
IL
MIN
-1.020
-1.950
-1.480
475
0.5
TYP
MAX
-0.735
-1.600
-1.070
UNITS
V
V
V
V
µA
µA
NOTES
V
IH
= MAX,50Ω to -2V
V
IL
= MIN, 50Ω to -2V
V
IH
= MAX
V
IL
= MIN
Doc #97036
12/11/97
DATA DELAY DEVICES, INC.
Tel: 973-773-2299
Fax: 973-773-9672
http://www.datadelay.com
2
DDU12H
PACKAGE DIMENSIONS
32 31 30 29
24 23 22 21
.400
TYP.
1
3
4
5
8
9
11 12
16
1.650 TYP.
.020 .320
TYP. MAX.
.150
±.030
.100
.200
.300
.400
.700
.800
.900
1.000
1.100
.075
1.500
.018
TYP.
.012 TYP.
.300
TYP.
DDU12H-xx (Commercial DIP)
DDU12H-xxM (Military DIP)
.020 TYP.
.040 TYP.
.010±.002
24 23 22 21 20 19 18 17 16 15 14 13
.710 .590
±.005
MAX.
.882
±.005
.007
±.005
1
2
3
4
5
6
7
8
9
10 11 12
.090
1.100
1.280±.020
.100
.280
MAX.
.050
±.010
DDU12H-xxC4 (Commercial SMD)
DDU12H-xxMC4 (Military SMD)
Doc #97036
12/11/97
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
3
DDU12H
DELAY LINE AUTOMATED TESTING
TEST CONDITIONS
INPUT:
Ambient Temperature:
25
o
C
±
3
o
C
Supply Voltage (Vcc):
-5.0V
±
0.1V
Input Pulse:
Standard 10KH ECL
levels
Source Impedance:
50Ω 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
OUTPUT:
Load:
C
load
:
Threshold:
50Ω to -2V
5pf
±
10%
(V
OH
+ V
OL
) / 2
(Rising & Falling)
NOTE:
The above conditions are for test only and do not in any way restrict the operation of the device.
T1
PULSE
GENERATOR
OUT
TRIG
DEVICE UNDER
TEST (DUT)
IN
T2
T3
T4
T5
T6
T7
T8
T9
T10
REF
IN
TRIG
OSCILLOSCOPE
Test Setup
PER
IN
PW
IN
T
RISE
INPUT
SIGNAL
80%
50%
20%
T
FALL
V
IH
80%
50%
20%
V
IL
T
FALL
T
RISE
OUTPUT
SIGNAL
V
OH
50%
50%
V
OL
Timing Diagram For Testing
Doc #97036
12/11/97
DATA DELAY DEVICES, INC.
Tel: 973-773-2299
Fax: 973-773-9672
http://www.datadelay.com
4
