Datasheet

DS1886
SFP and PON ONU Controller
with Digital LDD Interface
3Maxim Integrated
LOS, LOSOUT ...........................................................................26
RSEL
..................................................................................26
TXD, TXDOUT
...........................................................................26
IN1, TXF, Transmit Fault (TXFOUT) Output
.....................................................26
Die Identification
............................................................................27
DS1886 Master Communication Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3-Wire Master Interface
.......................................................................28
Protocol
................................................................................28
3-Wire Slave Register Map and DS1886 Corresponding Location
...................................29
3-Wire Master Flowchart
...................................................................29
3-Wire Power-On Reset
.......................................................................31
DS1886 with MAX3710 Operating Modes
........................................................32
Open Loop Mode, DPC_EN = 0, APC_EN = 0
..................................................32
APC Loop Mode, DPC_EN = 0, APC_EN = 1
...................................................32
Dual Closed-Loop Mode, DPC_EN = 1, APC_EN = 1
............................................32
BIAS, MODULATION, SET_2XAPC, TXCTRL5 LUTs
................................................33
MODULATION Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
BIAS Value
..............................................................................34
Power Leveling
.............................................................................35
Manual MAX3710 Operations
..................................................................35
I
2
C Communication ........................................................................... 35
I
2
C Definition ...............................................................................35
I
2
C Protocol................................................................................37
Memory Organization
.......................................................................... 38
Register Descriptions
.......................................................................... 40
A2h Lower Memory Register Map
..............................................................40
A2h Table 01h Register Map
...................................................................40
A2h Table 02h Register Map
..................................................................41
A2h Table 04h Register Map
..................................................................42
A2h Table 05h Register Map
..................................................................42
A2h Table 06h Register Map
..................................................................42
A2h Table 08h Register Map
..................................................................43
A2h Table 09h Register Map
..................................................................43
Auxiliary A0h Memory Register Map
............................................................43
A2h Lower Memory Register Descriptions
........................................................44
A2h Lower Memory, Register 00h–01h: TEMP ALARM HI
........................................44
TABLE OF CONTENTS (continued)