1503/1503J
Doc #01011
DATA DELAY DEVICES, INC.
1
11/2/01
3 Mt. Prospect Ave. Clifton, NJ 07013
MECHANICALLY VARIABLE
DELAY LINE
(SERIES 1503 & 1503J)
FEATURES
PACKAGES
Ideal for "Set and Forget" applications
Multi-turn adjustment screw
(1503: 40 turns, 1503J: 60 turns)
Stackable for PC board economy
20mil x 10mil flat leads (1503)
#20 gauge leads (1503J)
Resolution:
As low as 0.12ns
Dielectric breakdown:
50 Vdc
Temperature coefficient: 100 PPM/
C
FUNCTIONAL DESCRIPTION
The 1503- and 1503J-series devices are mechanically variable, passive delay
lines. The signal input (IN) is reproduced at the tap output (TAP), shifted by an
amount which can be adjusted between 0 and T
D
, where T
D
is the device dash
number. The fixed output (OUT) reproduces the input, delayed by T
D
, and must
be terminated to match the characteristic impedance of the line, which is given
by the letter code that follows the dash number (See Table). The tap output is unbuffered. The 3dB
bandwidth of the line is given by 3.5 / T
R
, where T
R
is the rise time of the line (See Table).
SERIES SPECIFICATIONS
Functional Diagram
GND
IN
TAP
OUT
.500
1.310 MAX.
.312
.020
.010
Package Dimensions - 1503
.020
.170
.187
.375
1.000
.150
.150
.300
.100
.100
.100
1
2
3
4
IN
GND
TAP
OUT
2001 Data Delay Devices
data
delay
devices,
inc.
3
1503
GND
IN
OUT
TAP
1503-xxz
1503J-xxz
xx = Max Delay (T
D
)
z = Impedance Code
1503J
GND IN
OUT TAP
PIN DESCRIPTIONS
IN
Signal Input
TAP
Variable Output
OUT
Fixed Output
GND
Ground
DASH NUMBER SPECIFICATIONS
Part
Number
Max Dly
(ns)
TR
(ns)
Imped
(
)
RDC
(
)
1503-15A
15
3
50
0.7
1503-25A
25
5
50
0.8
1503-30A
30
6
50
1.0
1503-40A
40
8
50
1.5
1503-50A
50
10
50
1.7
1503-60A
60
12
50
2.0
1503-80A
80
16
50
3.0
1503-100A
100
20
50
3.5
1503-15B
15
3
100
1.0
1503-30B
30
6
100
2.0
1503-50B
50
10
100
3.0
1503-60B
60
12
100
4.0
1503-80B
80
16
100
5.0
1503-100B
100
20
100
14.0
1503-120B
120
24
100
8.0
1503-140B
140
28
100
14.0
1503-160B
160
32
100
10.0
1503-200B
200
40
100
14.0
1503-30C
30
6
200
4.0
1503-60C
60
12
200
9.5
1503-100C
100
20
200
14.0
1503-20D
20
4
250
5.0
1503-20E
20
4
300
5.0
1503-30F
30
6
350
8.0
1503-25G
25
5
400
8.0
1503-40H
40
8
500
12.0
1503J-150A
150
22
50
5.0
1503J-250B
250
38
100
21.0
1503J-130C
130
20
200
21.0
1503J-30D
30
5
250
7.0
1503J-30E
30
5
300
7.0
1503J-40F
40
6
350
10.0
1503J-35G
35
6
400
10.0
1503J-60H
60
9
500
18.0
1503/1503J
Doc #01011
DATA DELAY DEVICES, INC.
3
11/2/01
3 Mt. Prospect Ave. Clifton, NJ 07013
PASSIVE DELAY LINE TEST SPECIFICATIONS
TEST CONDITIONS
INPUT:
OUTPUT:
Ambient Temperature:
25
o
C
3
o
C
R
load
:
10M
Input Pulse:
High = 3.0V typical
C
load
:
10pf
Low = 0.0V typical
Threshold: 50% (Rising & Falling)
Source Impedance:
50
Max.
Rise/Fall Time:
3.0 ns Max. (measured
at 10% and 90% levels)
Pulse Width (T
D
<= 75ns): PW
IN
= 100ns
Period
(T
D
<= 75ns): PER
IN
= 1000ns
Pulse Width (T
D
> 75ns):
PW
IN
= 2 x T
D
Period
(T
D
> 75ns):
PER
IN
= 10 x T
D
NOTE: The above conditions are for test only and do not in any way restrict the operation of the device.
Timing Diagram For Testing
D
RISE
D
FALL
PER
IN
PW
IN
T
RISE
T
FALL
10%
10%
50%
50%
90%
90%
50%
50%
V
IH
V
IL
V
OH
V
OL
INPUT
SIGNAL
OUTPUT
SIGNAL
T
RISE
T
FALL
10%
10%
90%
90%
IN
OUT
OUT
TRIG
IN
TRIG
Test Setup
DEVICE UNDER
TEST (DUT)
OSCILLOSCOPE
PULSE
GENERATOR
50
R
OUT
R
IN
R
IN
= R
OUT
= Z
LINE
TAP
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