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3D7428 Datasheet(PDF) 5 Page - Data Delay Devices, Inc.

Part No. 3D7428
Description  MONOLITHIC 8-BIT PROGRAMMABLE DELAY LINE
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Maker  DATADELAY [Data Delay Devices, Inc.]
Homepage  http://www.datadelay.com
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3D7428 Datasheet(HTML) 5 Page - Data Delay Devices, Inc.

   
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3D7428
Doc #03003
DATA DELAY DEVICES, INC.
5
11/1/04
3 Mt. Prospect Ave. Clifton, NJ 07013
APPLICATION NOTES (CONT’D)
PREVIOUS
NEW VALUE
NEW VALUE
tEDX
tEDV
PARALLEL
INPUTS
P0-P7
DELAY
TIME
tDSE
tDHE
tEW
ENABLE
(AE)
Figure 3: Latched parallel mode (MD=1)
NEW
VALUE
NEW
BIT 7
NEW
BIT 0
NEW
BIT 6
OLD
BIT 7
OLD
BIT 6
OLD
BIT 0
ENABLE
(AE)
CLOCK
(SC)
SERIAL
INPUT
(SI)
SERIAL
OUTPUT
(SO)
DELAY
TIME
tEW
tES
tCW
tCW
tEH
tDSC
tDHC
tEGV
tCQV
tCQX
tEQZ
tEDV
tEDX
PREVIOUS VALUE
Figure 4: Serial mode (MD=0)
FROM
WRITING
DEVICE
TO
NEXT
DEVICE
SI
SO
SC
AE
3D7428
3D7428
3D7428
Figure 5: Cascading Multiple Devices
SI
SO
SC
AE
SI
SO
SC
AE
TABLE 2: DELAY VS. PROGRAMMED ADDRESS
PROGRAMMED ADDRESS
PARALLEL
P7
P6
P5
P4
P3
P2
P1
P0
NOMINAL DELAY (NS)
PER 3D7428 DASH NUMBER
SERIAL
Msb
Lsb
-0.25
-0.5
-1
-2
-5
-10
-20
STEP 0
0
0
0
0
0
0
0
0
10.50
10.5
10.5
10.5
15
23.5
42
STEP 1
0
0
0
0
0
0
0
1
10.75
11.0
11.5
12.5
20
33.5
62
STEP 2
0
0
0
0
0
0
1
0
11.00
11.5
12.5
14.5
25
43.5
82
STEP 3
0
0
0
0
0
0
1
1
11.25
12.0
13.5
16.5
30
53.5
102
STEP 4
0
0
0
0
0
1
0
0
11.50
12.5
14.5
18.5
35
63.5
122
STEP 5
0
0
0
0
0
1
0
1
11.75
13.0
15.5
20.5
40
73.5
142
STEP 253
1
1
1
1
1
1
0
1
73.75
137.0
263.5
516.5
1280
2553.5
5102
STEP 254
1
1
1
1
1
1
1
0
74.00
137.5
264.5
518.5
1285
2563.5
5122
STEP 255
1
1
1
1
1
1
1
1
74.25
138.0
265.5
520.5
1290
2573.5
5142
CHANGE
63.75
127.5
255.0
510.0
1275
2550.0
5100


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