Datasheet

4 Maxim Integrated
SFP Controller for Dual Rx Interface
DS1877
LIST OF FIGURES
Figure 1. Power-Up Timing...................................................................... 13
Figure 2. Quick-Trip Sample Timing
............................................................... 13
Figure 3. ADC Round-Robin Timing
.............................................................. 14
Figure 4. RSSI1/RSSI2 Differential Input for High-Side RSSI
............................................ 15
Figure 5. Crossover Enabled
.................................................................... 17
Figure 6. Crossover Disabled
.................................................................... 17
Figure 7. Low-Voltage Operation
................................................................. 17
Figure 8. Recommended RC Filter for DAC Outputs
.................................................. 18
Figure 9. 3-Bit (8-Position) Delta-Sigma Example
.................................................... 18
Figure 10. DAC Offset LUTs
..................................................................... 19
Figure 11. Logic Diagram
....................................................................... 19
Figure 12. I
2
C Timing .......................................................................... 20
Figure 13. Example I
2
C Timing .................................................................. 22
Figure 14. Memory Map
........................................................................ 24
LIST OF TABLES
Table 1. Acronyms ............................................................................ 13
Table 2. ADC Default Monitor Full-Scale Ranges
.................................................... 14
Table 3. RSSI1/RSSI2 Configuration Registers
....................................................... 15
Table 4. RSSI1/RSSI2 Hysteresis Threshold Values
................................................... 16