He
epc701/epc703
The delay time is set with d1, d2, and d3. The bits D1, D2, and D3 are the inverted values of d1, d2, and d3. Table 3 shows the value mapping
table for the 8 different delay times.
delay [µs]
50
D1
1
D2
1
D3
1
d1
0
d2
0
d3
0
Comments
Default value
5
1
1
0
0
0
1
10
1
0
1
0
1
0
20
1
0
0
0
1
1
100
200
500
1000
0
1
1
1
0
0
0
1
0
1
0
1
0
0
1
1
1
0
0
0
0
1
1
1
Table 3: Delay-time programming table
An un-configured chip is applying a default delay time of 50µs corresponding to [d 1, d2, d3] = 000 and [D1, D2, D3] = 111.
The recovery time is set to o1, o2, and o3, resp. O1, O2, and O3 which are the inverted values of o1, o2, and o3. Table 4 shows the value mapping
table for the 8 different recovery time delay values.
Recovery
time [ms]
O1
O2
O3
o1
o2
o3
Comments
500
10
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Default value
20
50
100
200
1000
1500
Table 4: Recovery time programming table
An un-configured chip is applying the default recovery time of 500ms corresponding to [o 1, o2, o3] = 000 and [O1, O2, O3] = 111.
Programming Example
An example for changing the delay time to 100µs is shown in the following diagram:
Clock
Data
1
0
1
1
1
0
4
0
5
0
0
0
1
1
1
1
0
0
1
1
1
1
0
0
Manchester
Code
Bit #
0
2
3
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20
Figure 9: Programming example to set tdel to 100μs
© 2011 ESPROS Photonics Corporation
Characteristics subject to change without notice
8
Datasheet epc701_703 - V2.2
www.espros.ch
EPC [ ESPROS PHOTONICS CORP ]
