ACS101A Semtech Corporation, ACS101A Datasheet - Page 9

• Manufacturer Part Number: ACS101A
• Description: Acapella Optical Modem ic
• Manufacturer: Semtech Corporation

Note 7: Link Budget Calculations for a typical 1A-212 LED from MITEL Semiconductor.
TxD
Link Budget Examples
Cable
Typical transmit couple power to fiber (µW)
Minimum LED responsivity (A/W)
Available current (µA)
Minimum ACS101A sensitivity (nA)
Link budget (dB)
TxCL and RxCL clock pulse widths
Transmit set-up and hold times
t
t
wh
sut
TxCL
t
wl
t
ht
Figure 3. Timing diagrams
RxCL
9
RxD
200 micron
0.05
60
500
20
1200
Digital Outputs rise and fall times
t
100 micron
260
0.06
15.6
500
15
r
Receive set-up and hold times
10 %
t
90 %
sur
62.5 micron
100
0.1
10
500
13
90 %
10 %
ACS101A Issue 1.2 October 1999.
t
t
hr
f
50 micron
40
0.12
4.8
500
10
2