3D3428 Datasheet, PDF (5/7 Pages) List of Unclassifed Manufacturers – MONOLITHIC 8-BIT PROGRAMMABLE DELAY LINE

APPLICATION NOTES (CONT’D)
ENABLE
(AE)
PARALLEL
INPUTS
P0-P7
DELAY
TIME
t_EW
t_DSE
t_DHE
t_EDX
NEW VALUE
t_EDV
PREVIOUS
NEW VALUE
Figure 3: Latched parallel mode (MD=1)
ENABLE
(AE)
CLOCK
(SC)
SERIAL
INPUT
(SI)
SERIAL
OUTPUT
(SO)
DELAY
TIME
t_EW
t_ES
t_CW t_CW
t_EH
t_DSC
NEW
BIT 7
t_EGV
OLD
BIT 7
t_DHC
NEW
BIT 6
t_CQV
OLD
BIT 6
PREVIOUS VALUE
t_CQX
NEW
BIT 0
OLD
BIT 0
t_EDX
Figure 4: Serial mode (MD=0)
t_EQZ
t_EDV
NEW
VALUE
3D3428
FROM
WRITING
DEVICE
3D3428
SI
SO
SC AE
3D3428
SI
SO
SC AE
3D3428
SI
SO
SC AE
TO
NEXT
DEVICE
Figure 5: Cascading Multiple Devices
TABLE 2: DELAY VS. PROGRAMMED ADDRESS
PROGRAMMED ADDRESS
NOMINAL DELAY (NS)
PARALLEL P7 P6 P5 P4 P3 P2 P1 P0
PER 3D3428 DASH NUMBER
SERIAL
Msb
Lsb -0.25 -0.5
-1
-2
-5
-10 -15
STEP 0
0 0 0 0 0 0 0 0 11.50 11.5 11.5 11.5
18
27.5
38
STEP 1
0 0 0 0 0 0 0 1 11.75 12.0 12.5 13.5
23
37.5
53
STEP 2
0 0 0 0 0 0 1 0 12.00 12.5 13.5 15.5
28
47.5
68
STEP 3
0 0 0 0 0 0 1 1 12.25 13.0 14.5 17.5
33
57.5
83
STEP 4
0 0 0 0 0 1 0 0 12.50 13.5 15.5 19.5
38
67.5
98
STEP 5
0 0 0 0 0 1 0 1 12.75 14.0 16.5 21.5
43
77.5 113
STEP 253
STEP 254
STEP 255
CHANGE
1 1 1 1 1 1 0 1 74.75 138.0 264.5 517.5 1283 2557.5 3833
1 1 1 1 1 1 1 0 75.00 138.5 265.5 519.5 1288 2567.5 3848
1 1 1 1 1 1 1 1 75.25 139.0 266.5 521.5 1293 2577.5 3863
63.75 127.5 255.0 510.0 1275 2550.0 3825
Doc #04004
DATA DELAY DEVICES, INC.
5
11/1/04
3 Mt. Prospect Ave. Clifton, NJ 07013