12 Maxim Integrated
SFP Controller for Dual Rx Interface
DS1877
Typical Operating Circuit
LOS1
LOS1
ROUT1+
+3.3V
ROUT1-
FAULT
DAC1
DAC2
EEPROM
LOS
ADC
SDA
SCL
LOSOUT
FAULT
LOS
LOS2
MODE_DEF2 (SDA)
MODE_DEF1 (SCL)
I
2
C
DS1877
RSSI1
RSSI2
THRESH1
R
RC FILTERS
RX1
LOS2
ROUT2+
+3.3V
ROUT2-
THRESH2
R
RX2
