
1503/1503J
Doc #01011
11/2/01
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
1
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:
Dielectric breakdown:
Temperature coefficient:
As low as 0.12ns
50 Vdc
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
TAP
OUT
GND
Signal Input
Variable Output
Fixed Output
Ground
DASH NUMBER SPECIFICATIONS
Part
Number
1503-15A
1503-25A
1503-30A
1503-40A
1503-50A
1503-60A
1503-80A
1503-100A
1503-15B
1503-30B
1503-50B
1503-60B
1503-80B
1503-100B
1503-120B
1503-140B
1503-160B
1503-200B
1503-30C
1503-60C
1503-100C
1503-20D
1503-20E
1503-30F
1503-25G
1503-40H
1503J-150A
1503J-250B
1503J-130C
1503J-30D
1503J-30E
1503J-40F
1503J-35G
1503J-60H
Max Dly
(ns)
15
25
30
40
50
60
80
100
15
30
50
60
80
100
120
140
160
200
30
60
100
20
20
30
25
40
150
250
130
30
30
40
35
60
TR
(ns)
3
5
6
8
10
12
16
20
3
6
10
12
16
20
24
28
32
40
6
12
20
4
4
6
5
8
22
38
20
5
5
6
6
9
Imped
(
)
50
50
50
50
50
50
50
50
100
100
100
100
100
100
100
100
100
100
200
200
200
250
300
350
400
500
50
100
200
250
300
350
400
500
RDC
(
)
0.7
0.8
1.0
1.5
1.7
2.0
3.0
3.5
1.0
2.0
3.0
4.0
5.0
14.0
8.0
14.0
10.0
14.0
4.0
9.5
14.0
5.0
5.0
8.0
8.0
12.0
5.0
21.0
21.0
7.0
7.0
10.0
10.0
18.0