Datasheet
14 _____________________________________________________________________________________
MAX3946
1Gbps to 11.3Gbps, SFP+ Laser Driver
with Laser Impedance Mismatch Tolerance
Figure 4. Eye Safety Circuitry
<0>
<1>
0.44V
<2>
V
CC
-
2V
<3>
<4>
<6>
<7>
1.3V
<5>
UNUSED
V
CC
- 1.3V
V
CC
- 0.5V
2.3V
FAULT
FAULT REGISTER
TXSTAT1
<1>
<0>UNUSED
SET_IBIAS
IBIASMAX
SET_IMOD
IMODMAX
LOSS-OF-SIGNAL
CIRCUIT
<2>
<3>
WARNING REGISTER
TXSTAT2
ADDR = H0x07
V
CCT
TOUT-
TOUT+
I
MOD
I
BIAS
I
BIAS
100
BIAS
V
CCD
DISABLE
7.5kI
BMAX
BMON
RESET
POR
FAULT REGISTERS
ADDR = H0x06
V
EET
V
EET
V
EET