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DS1886 Datasheet

Download or read online Maxim Integrated DS1886 SFP and PON ONU Controller with Digital LDD Interface pdf datasheet.
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General Description
The DS1886 controls and monitors all functions for SFF,
SFP, and SFP+ modules including all SFF-8472 func-
tionality for GPON/EPON and 10G PON ONU applica-
tions. The combination of the DS1886 with the MAX3710
supports all transmitter and receiver functionality. The
DS1886 includes modulation current control and APC set-
point control with tracking error adjustment. It continually
monitors RSSI for LOS generation. A 13-bit analog-to-
digital converter (ADC) monitors V
, temperature, laser
CC
bias, laser modulation, and receive power to meet all
monitoring requirements. Receive power measurement
is differential with support for common mode to V
9-bit digital-to-analog converter (DAC) is included with
temperature compensation for APD bias control.
Applications
SFF, SFP, and PON ONU Modules
Ordering Information
appears at end of data sheet.
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For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
SFP and PON ONU Controller
with Digital LDD Interface
S Meets All SFF-8472 Control and Monitoring
Requirements
S Companion Controller for the MAX3710 Laser
Driver/Limiting Amplifier and MAX3945 Limiting
Amplifier
S MAX3710/DS1886 Combination Supports
Broad Spectrum of Continuous Mode and PON
Applications Up to 2.5GHz
S Temperature Lookup Table (LUT) to Compensate
for APC Tracking Error and Dual Closed-Loop
Variables
. A
CC
S Three Laser Control Modes
 Dual Closed Loop: Laser Bias and Laser
Modulation Are Automatically Controlled with
Multiple LUTs to Compensate Dual Closed-Loop
Calibration Points
 APC Loop: Laser Bias Automatically Controlled,
Laser Modulation Controlled by Temperature LUT
 Open Loop: Laser Bias and Laser Modulation
Are Controlled by Temperature LUTs
S 13-Bit ADC
 Laser Bias, Laser Power, and Receive Power
Support Internal and External Calibration
 Differential Receive Power Input
 Scalable Dynamic Range
 Internal Direct-to-Digital Temperature Sensor
 Alarm and Warning Flags for All Monitored
Channels
S 10-Bit DAC with Temperature Compensation for
APD Bias
S Digital I/O Pins: Transmit Disable Input/Output,
Rate Select Input, LOS Input/Output, Transmit
Fault Input/Output, and IN1 Status Monitor and
Fault input
S Comprehensive Fault Measurement System with
Maskable Alarm/Warnings
S Flexible Password Scheme Provides Three Levels
of Security
S 256-Byte A0h and 128-Byte Upper A2h EEPROM
2
S I
C-Compatible Interface
S 3-Wire Master to Communicate with the MAX3710/
MAX3711 Laser Driver/Limiting Amplifier and
MAX3945 Limiting Amplifier
19-6259; Rev 0; 3/12
DS1886
Features

Summary of Contents

Page 1

... The DS1886 controls and monitors all functions for SFF, SFP, and SFP modules including all SFF-8472 func- tionality for GPON/EPON and 10G PON ONU applica- tions. The combination of the DS1886 with the MAX3710 supports all transmitter and receiver functionality. The DS1886 includes modulation current control and APC set- point control with tracking error adjustment ...

Page 2

... Maxim Integrated Products 2 SFP and PON ONU Controller with Digital LDD Interface TABLE OF CONTENTS DS1886 ...

Page 3

... IN1, TXF, Transmit Fault (TXFOUT) Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Die Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 DS1886 Master Communication Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3-Wire Master Interface Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3-Wire Slave Register Map and DS1886 Corresponding Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 3-Wire Master Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 3-Wire Power-On Reset DS1886 with MAX3710 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Open Loop Mode, DPC_EN 0, APC_EN APC Loop Mode, DPC_EN 0, APC_EN 1 ...

Page 4

... Maxim Integrated Products 4 SFP and PON ONU Controller with Digital LDD Interface ALARM WARN ALARM LO WARN VALUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DS1886 ...

Page 5

... Maxim Integrated Products 5 SFP and PON ONU Controller with Digital LDD Interface (RSHIFT ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (RSHIFT ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SCALE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 CC OFFSET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 CC DS1886 ...

Page 6

... Maxim Integrated Products 6 SFP and PON ONU Controller with Digital LDD Interface DS1886 ...

Page 7

... Maxim Integrated Products 7 SFP and PON ONU Controller with Digital LDD Interface TABLE OF CONTENTS (continued) DS1886 ...

Page 8

... Maxim Integrated Products 8 SFP and PON ONU Controller with Digital LDD Interface LIST OF FIGURES DS1886 ...

Page 9

... Table 7. DS1886 LUT Functions in Open Loop, APC Loop, and Dual Closed-Loop Modes Table 8. DS1886 LUT Memory Map for 4-Row Table (Temperature Values Indicated in ° Table 9. DS1886 LUT Memory Map for 4-Row Table (TINDEX Values Indicated in Hex Table 10. DS1886 LUT Memory Map for 5-Row Table (Temperature Values Indicated in °C .33 Table 11 ...

Page 10

... CONDITIONS V (Note IH:1 V IL:1 V IH:2 V IL:2 SYMBOL CONDITIONS I (Notes 4mA 6mA 4mA POD POA POA > POD by design DS1886 70NC) A MIN TYP MAX UNITS 2.97 3. 0.3 CC 0 2.0 V 0.3 -0.3 0.8 V MIN TYP MAX UNITS 0.7 ...

Page 11

... RR conversion (Note 5) t RSSIP-RSSIN requires a fine conversion R/R2 V (Notes TXMON and RSSIP-RSSIN coarse (Notes (Note 7) CC RSSIP-RSSIN fine (Note 7) SYMBOL CONDITIONS T -40NC to 95NC, guaranteed by design ERR DS1886 MIN TYP MAX UNITS 2.1 MHz REFIN 10 Bits 45 100 I See the Startup Timing ...

Page 12

... POA, Figure 12c (Note 13) INITR2 CC SYMBOL CONDITIONS t (Notes 13, 14) INIT SYMBOL CONDITIONS f SCLOUT t 3WDC CSW Total bus capacitance on one line B3W DS1886 MIN TYP MAX UNITS 12.5 ms MIN TYP MAX UNITS 13 ms and V .) (Note 1) IL(MAX) IH(MIN) ...

Page 13

... F t SU:STO (Note 17) W SYMBOL CONDITIONS 25NC 85NC A 25°C. Limits over the operating temperature range and relevant supply voltage A conversion is completed, and V CC DS1886 and V .) (Note 1) (See IL(MAX) IH(MIN) MIN TYP MAX 0 400 1.3 0.6 1.3 0.6 0.6 0 0.9 100 20 300 0. 300 0 ...

Page 14

... Maxim Integrated Products 14 SFP and PON ONU Controller with Digital LDD Interface Typical Operating Characteristics SDA SCL V CC 3.60 3.85 (V) 1.5 2.0 2.5 300 400 500 DS1886 SUPPLY CURRENT vs. TEMPERATURE 1.0 0 3.9V 0.8 CC 0.7 0.6 0 2.85V ...

Page 15

... TXMON 14 DS1886 Pin Description NAME FUNCTION Chip-Select Output. Part of the CSEL2OUT 3-wire interface to the MAX3945. 2 SCL I C Serial-Clock Input 2 Open-Drain I C Serial-Data Input/ SDA Output TXFOUT Open-Drain Transmit Fault Output LOS ...

Page 16

... SYSTEM STATUS/CONTROL BITS, ALARMS/WARNINGS, LOOKUP TABLES, EEPROM USER MEMORY 256 BYTES AT A0h 13-BIT ADC DS1886 POA AND POD RESET CONFIGURABLE LOGIC CONFIGURABLE LOGIC DS1886 Block Diagram REFIN 10-BIT DAC DELTA-SIGMA SDAOUT SCLOUT 3-WIRE MASTER CSEL1OUT CSEL2OUT TXFOUT V CC TXDOUT LOSOUT GND ...

Page 17

... Typical Operating CircuitGPON ONU MAX3710 LOS LOS DAC MOD FAULT DAC DISABLE BIAS LPD DAC LDD BENP/N IN1 DS1886 TXF TXFOUT EEPROM TXDOUT TXD SDA SCL ADC RSEL LOS LOSOUT DS1886 LASER SIGNAL DETECT TX_FAULT TX_DISABLE MODE_DEF2 (SDA) MODE_DEF1 (SCL) RATE SELECT LOS ...

Page 18

... DAC DISABLE BIAS LPD DAC LDD MDIN BENP/N BMON IN1 3W TXF DS1886 TXFOUT EEPROM REFIN TXDOUT TXD DAC SDA SCL TXMON ADC RSSIP RSEL LOS LOSOUT RSSIN DS1886 LASER SIGNAL DETECT TX_FAULT TX_DISABLE MODE_DEF2 (SDA) MODE_DEF1 (SCL) RATE SELECT LOS ...

Page 19

... Digital LDD Interface The DS1886 monitors five ADC channels. This monitoring combined with the alarm enables (A2h Table 01h/05h) determines when/if the DS1886 turns off the MAX3710 DACs and triggers the TXFOUT and TXDOUT outputs. and described All the monitoring levels and interrupt masks are user- programmable ...

Page 20

... Table 02h, Register (Table driver to alternate sending laser bias (TXB) and laser power (TXP) signals to the DS1886s TXMON input. The DS1886 has a burst mode option to allow internal calculation of TXP using the MD0 and MD1 register n to mea- values read from the MAX3710 over the 3-wire inter- face ...

Page 21

... In burst mode, right-shifting for TXP is determined by 1 KIMD and KRMD The DS1886 offers a fully differential input for RSSI that enables high-side monitoring of RSSI, as shown in Figure (A2h the need for a high-side differential amplifier or a cur- rent mirror. The DS1886 measures both laser bias (TXB) and laser power (TXP) through the same input pin, TXMON ...

Page 22

... Each path has independent gain and offset calibration registers. Enhanced RSSI Monitoring (Dual Range Functionality) The DS1886 offers a feature to improve the accuracy and range of RSSI, which is most commonly used for monitoring RSSI. To achieve the SFF-8472 requirement of 0.1µW/LSB over -40 to 8.2dBm, the DS1886 makes two measurements to effectively achieve a 16-bit conversion with a 13-bit physical ADC. This “ ...

Page 23

... With the use of right-shifting, the fine mode full scale nth is programmed to (1 the coarse mode full scale. The DS1886 now auto ranges to choose the range that gives the best resolution for the measurement. shows the threshold values for each possible number of right-shifts. ...

Page 24

... Maxim Integrated Products 24 SFP and PON ONU Controller with Digital LDD Interface POA holds the DS1886 in reset until V next level (V ...

Page 25

... REFIN must be able to support the edge rate require- ments of the delta sigma outputs typical application, a 0.1uF capacitor should be connected between REFIN and ground. The DS1886s delta-sigma output is 10 bits. For illustra- tive purposes, a 3-bit example is provided in 8Dh, bit 7. 81h. ...

Page 26

... Lower Memory, Register for enabling these options). A software 6Eh). A TXD pulse is internally extend inhibit the latching of low alarms and IN1, TXF, Transmit Fault (TXFOUT) Output (Figure 10). The ADC alarms and DS1886 TXDOUT TXFOUTS TXFOUT RSEL 6Eh). The status TXD, TXDOUT ...

Page 27

... Maxim Integrated Products 27 SFP and PON ONU Controller with Digital LDD Interface Figure 12b for non- The DS1886 has an ID hardcoded in its die. Two Figure 12c describes registers (DEVICE ID DEVICE VER for this feature ...

Page 28

... The DS1886 configures the MAX3710 on startup and then continuously updates the MAX3710 with new LUT values. The DS1886 operates in one of three modes: open loop, APC loop, and dual closed loop. The DS1886 can also configure the MAX3945 on startup. The communication between the DS1886 and the MAX3710 and MAX3945 is transparent to the end user ...

Page 29

... Maxim Integrated Products 29 SFP and PON ONU Controller with Digital LDD Interface Figure 14 the DS1886 in all three opreating modes. These modes 6). are described in the Modes section ...

Page 30

... IBIASMAX IMODMAX TXCTRL5 N N MANMODE 1? APC_EN 1? Y MANMODE ALLOWS THE USER TO DPC_EN 1? COMMUNICATE WITH 2 MAX3710 USING THE I C INTERFACE ON DS1886 WRITE MODINC, SET_IMOD TXD_FLAG 1? BIASINC, SET_IBIAS INC APC STEADY STATE (FIG 15) TOGGLE MONSEL BIT (TXCTRL2[6]) PERIODICALLY; RESET FLAGS Y TXD_FLAG 1? Y MANMODE 1? ...

Page 31

... NOTE 1: FAULT WAIT STATE HAS ACCESS TO MAX3710 IN MANUAL MODE. NOTE 2: MON_SEL BIT IS TOGGLED AS NEEDED TO KEEP THE TXP/TXB MONITORS CORRECT. Figure 15. MAX3710 Brownout Detection Flowchart 3-Wire Power-On Reset The DS1886 detects whether a power-on reset has occured on the slave 3-wire device. This is done using the flowchart shown in Figure 15. � ...

Page 32

... LUT. The modulation LUT consists of an 8-bit LUT with up to 2NC tempera- ture resolution and an 8-bit offset LUT. This allows the Table 7. DS1886 LUT Functions in Open Loop, APC Loop, and Dual Closed-Loop Modes TABLE REGISTER 80h– ...

Page 33

... Table 10. DS1886 LUT Memory Map for 5-Row Table (Temperature Values Indicated in °C) ROW BYTE 0 BYTE 1 -40 -32 80h 88h 24 28 90h 56 58 72 74 98h A0h 88 90 Table 11. DS1886 LUT Memory Map for 5-Row Table (TINDEX Values Indicated in Hex) ROW BYTE 0 BYTE 80h 88h A0 A2 90h 98h A0h C0 C1 � ...

Page 34

... BYTE 4 BYTE 5 BYTE 6 40NC 56NC 72NC MODULATION Value shows how to calculate the MODULATION value shows how to calculate the BIAS value that is DS1886 FDh FEh FFh LUT LUT BITS LUT BITS 7:0 BITS 7:0 7:0 MAX3710 SET_IBIAS[9:0] BYTE 7 88NC BIAS Value ...

Page 35

... Manual MAX3710 Operations The master interface is controllable using four registers in the DS1886: 3WCTRL, ADDRESS, WRITE, READ. Commands can be manually issued while the DS1886 is in normal operation mode also possible to suspend normal 3-wire commands so that only manual operation commands are sent (3WCTRL, A2h Table 04h, Register F8h– ...

Page 36

... START condition. The slave address byte contains the slave address in the most significant 7 bits and the R/W bit in the least significant bit. The DS1886 responds to two slave addresses. The auxiliary memory always responds to a fixed I slave address, A0h. The Lower Memory and Tables (Figure 19) ...

Page 37

... SLAVE STOP ACK A3h DATA SLAVE MASTER DATA IN BAh STOP ACK NACK 75h SLAVE SLAVE STOP ACK ACK A3h DATA SLAVE MASTER DATA IN C8h DATA IN C9h ACK ACK DS1886 LSB SLAVE b0 STOP ACK DATA MASTER STOP NACK ...

Page 38

... Many registers are always readable, but require password access to write. There are a few registers that cannot be read without password access. The below access codes describe each mode used by the DS1886 with factory setting for the PW_ENA Table 02h, Register C0h Register ACCESS ...

Page 39

... CONFIGURATION REGISTERS A7h E7h E0h F0h F8h MOD MAX LUT 3W CONFIG MOD OFFSET/ TABLE 05h SET_IMOD LUT FFh FFh DS1886 80h 80h TABLE 06h BIAS/APC LUT EEPROM TABLE 08h 9Fh A7h F0h F8h BIAS MAX LUT BIASINC LUT BIAS OFFSET/ MODINC LUT ...

Page 40

... Table 02h, Register <3> <4> <5> All All PW2 All All and PW2 device mode All hardware bit DS1886 Register Descriptions A2h Lower Memory Register Map WORD 2 BYTE 4/C BYTE 5/D BYTE 6/E TEMP WARN HI V WARN HI CC TXB WARN HI TXP WARN HI RSSI WARN HI EMPTY EMPTY ...

Page 41

... EMPTY (A2h Table 02h, Register <3> <4> <5> All All PW2 All All and PW2 device mode All hardware bit DS1886 A2h Table 02h Register Map WORD 2 BYTE 4/C BYTE 5/D BYTE 6/E <4> <4> RESERVED APC VALUE RESERVED CNFGD RSHIFT TXB SCALE RSSI COARSE SCALE TXB OFFSET RSSI COARSE OFFSET ...

Page 42

... All All PW2 All All and PW2 device mode All hardware bit DS1886 A2h Table 04h Register Map WORD 2 BYTE 4/C BYTE 5/D BYTE 6/E EMPTY EMPTY EMPTY MOD MAX LUT MOD MAX LUT MOD MAX LUT A2h Table 05h Register Map ...

Page 43

... EE (A2h Table 02h, Register <3> <4> <5> All All PW2 All All and PW2 device mode All hardware bit DS1886 A2h Table 08h Register Map WORD 2 BYTE 4/C BYTE 5/D BYTE 6/E EMPTY EMPTY EMPTY INCBYTE INCBYTE INCBYTE A2h Table 09h Register Map WORD 2 BYTE 4/C BYTE 5/D BYTE 6/E ...

Page 44

... Nonvolatile (SEE 8000h All PW2 Nonvolatile (SEE A2h Lower Memory Register Descriptions DS1886 BIT BIT 0 ...

Page 45

... Maxim Integrated Products 45 SFP and PON ONU Controller with Digital LDD Interface ALARM HI CC WARN HI CC FFFFh All PW2 Nonvolatile (SEE DS1886 BIT 0 ...

Page 46

... Maxim Integrated Products 46 SFP and PON ONU Controller with Digital LDD Interface ALARM LO CC WARN LO CC 0000h All PW2 Nonvolatile (SEE DS1886 BIT 0 ...

Page 47

... Maxim Integrated Products 47 SFP and PON ONU Controller with Digital LDD Interface N/A N/A 00h All PW2 Nonvolatile (EE 0000h All N/A Volatile DS1886 BIT BIT 0 ...

Page 48

... Maxim Integrated Products 48 SFP and PON ONU Controller with Digital LDD Interface VALUE CC 0000h All N/A Volatile 00h N/A N/A DS1886 BIT 0 ...

Page 49

... Maxim Integrated Products 49 SFP and PON ONU Controller with Digital LDD Interface X0XX 0XXXb All See below description Volatile N/A All TXFIS RSELS is above POA below POA and/or too low to communicate over the I CC All N/A N/A RESERVED TXFOUTS RXL 2 C bus. DS1886 N/A RDYB BIT 0 ...

Page 50

... Maxim Integrated Products 50 SFP and PON ONU Controller with Digital LDD Interface 00h All All and DS1886 Hardware Volatile TXB RDY TXP RDY RSSI RDY ...

Page 51

... Maxim Integrated Products 51 SFP and PON ONU Controller with Digital LDD Interface 3 10h All N/A Volatile VCC HI VCC LO TXB HI measurement. CC measurement. This bit is set when the V CC measurement is completed and the value is above the low CC DS1886 TXB LO TXP HI TXP LO BIT 0 supply is below the POA CC ...

Page 52

... Maxim Integrated Products 52 SFP and PON ONU Controller with Digital LDD Interface 2 00h All N/A Volatile RESERVED RESERVED RESERVED 00h All N/A DS1886 IN1S RESERVED TXFINT BIT 0 ...

Page 53

... Maxim Integrated Products 53 SFP and PON ONU Controller with Digital LDD Interface 3 10h All N/A Volatile VCC HI VCC LO TXB HI measurement. CC measurement. This bit is set when the V CC measurement is completed and the value is above the low CC DS1886 TXB LO TXP HI TXP LO BIT 0 supply is below the POA CC ...

Page 54

... Maxim Integrated Products 54 SFP and PON ONU Controller with Digital LDD Interface 2 00h All N/A Volatile RESERVED RESERVED RESERVED 00h N/A N/A DS1886 RESERVED RESERVED RESERVED BIT 0 ...

Page 55

... BIT 7 There are two passwords for the DS1886. Each password is 4 bytes long. The lower level password (PW1) will have all the access of a normal user plus those made available with PW1. The higher level password (PW2) will have all of the access of PW1 plus those made available with PW2 ...

Page 56

... In this case the corresponding bytes in A2h Table 01h 00h PW2 or (PW1 and RWTBL1A) or (PW1 and RTBL1A) PW2 or (PW1 and RWTBL1A) Nonvolatile (EE 00h PW2 or (PW1 and RWTBL1B) or (PW1 and RTBL1B) PW2 or (PW1 and RWTBL1B) Nonvolatile (EE DS1886 BIT BIT 0 ...

Page 57

... SFP and PON ONU Controller with Digital LDD Interface 3 00h PW2 or (PW1 and RWTBL1C) or (PW1 and RTBL1C) PW2 or (PW1 and RWTBL1C) Nonvolatile (SEE) VCC HI VCC LO TXB HI in Lower Memory, Register 70h. Enables alarms to create TXFINT (Lower Memory, 3 DS1886 TXB LO TXP HI TXP LO BIT 0 ...

Page 58

... Maxim Integrated Products 58 SFP and PON ONU Controller with Digital LDD Interface 2 RESERVED RESERVED RESERVED in Lower Memory, Register 71h. Enables alarms to create TXFINT (Lower Memory, 2 DS1886 IN1EN RESERVED RESERVED BIT 0 ...

Page 59

... SFP and PON ONU Controller with Digital LDD Interface 3 00h PW2 or (PW1 and RWTBL1C) or (PW1 and RTBL1C) PW2 or (PW1 and RWTBL1C) Nonvolatile (SEE) VCC HI VCC LO TXB HI in Lower Memory, Register 74h. Enables warnings to create TXFINT (Lower Memory, 3 DS1886 TXB LO TXP HI TXP LO BIT 0 ...

Page 60

... Maxim Integrated Products 60 SFP and PON ONU Controller with Digital LDD Interface 2 RESERVED RESERVED RESERVED in Lower Memory, Register 75h. Enables warnings to create TXFINT (Lower Memory, 2 DS1886 RESERVED RESERVED RESERVED BIT 0 ...

Page 61

... Maxim Integrated Products 61 SFP and PON ONU Controller with Digital LDD Interface TXCTRL5 LUT BIAS LUT STOP condition is the end of the write cycle. A2h Table 02h Register Descriptions MOD LUT APC LUT AEN EN EN DS1886 DAC LUT EN BIT 0 ...

Page 62

... TINDEX 6 5 0000h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) (PW2 and MOD LUT (PW1 and RWTBL246 and MOD LUT Volatile 00h N/A N/A Nonvolatile (SEE) DS1886 ° 80h TINDEX TINDEX TINDEX 3 2 TINDEX TINDEX ...

Page 63

... APC LUT (PW1 and RWTBL246 and APC LUT Volatile FFh PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE section. DS1886 ...

Page 64

... Maxim Integrated Products 64 SFP and PON ONU Controller with Digital LDD Interface 82h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE) INV LOS RESERVED MASK DS1886 RESERVED BURST_MODE INVTXFI BIT 0 ...

Page 65

... Maxim Integrated Products 65 SFP and PON ONU Controller with Digital LDD Interface 40h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE) RESERVED RESERVED RESERVED DS1886 ALATCH RESERVED WLATCH BIT 0 ...

Page 66

... Maxim Integrated Products 66 SFP and PON ONU Controller with Digital LDD Interface 10h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE) TXDM3 BIASMODOVFL_FLT 00h N/A N/A DS1886 TXDFLT TXDIO RSSI_FC RSSI_FF BIT 0 ...

Page 67

... PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE) TXB TXB RESERVED 1 0 DS1886 POW_LEV_DS1863 BIT 0 POWER LEVEL (dB TXP TXP TXP BIT 0 ...

Page 68

... PW2 or (PW1 and RWTBL246) Nonvolatile (SEE) RSSIF RSSIF 0000h PW2 or (PW1 and RWTBL2) or (PW1 and RTBL2) PW2 or (PW1 and RWTBL2) Nonvolatile (SEE RESERVED RSSIC RSSIC DS1886 RSSIC 1 0 BIT BIT 0 ...

Page 69

... PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE 2.5V for TXB, TXP, and MON4; and 0.3125V for RSSI fine. CC 00h N/A N/A Nonvolatile (SEE) DS1886 BIT 0 ...

Page 70

... OFFSET CC 00h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE DS1886 BIT 0 ...

Page 71

... FFFF FFFFh N/A PW2 or (PW1 and WPW1) Nonvolatile (SEE DS1886 ...

Page 72

... Maxim Integrated Products 72 SFP and PON ONU Controller with Digital LDD Interface FFFF FFFFh N/A PW2 Nonvolatile (SEE N/A N/A DS1886 ...

Page 73

... Maxim Integrated Products 73 SFP and PON ONU Controller with Digital LDD Interface 10h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE) RWTBL2 RWTBL1A RWTBL1B DS1886 WA2 WAUXA WAUXB LOWER BIT 0 ...

Page 74

... Maxim Integrated Products 74 SFP and PON ONU Controller with Digital LDD Interface 03h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE) RTBL2 RTBL1A RTBL1B DS1886 WPW1 WAUXAU WAUXBU BIT 0 ...

Page 75

... Nonvolatile (SEE 0000h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) (PW2 and BIAS LUT (PW1 and RWTBL246 and BIAS LUT Volatile DS1886 Delta-Sigma Output and 0 2 ...

Page 76

... APC LUT (PW1 and RWTBL246 and APC LUT Volatile 00h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Volatile DS1886 ...

Page 77

... PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Volatile 86h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) N/A ROM DEVICE VERSION PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) N/A ROM DEVICE VERSION DS1886 BIT 0 0 BIT 0 BIT 0 ...

Page 78

... POA (after a POR event), a Maxim laser driver TX_POR bit is CC 00h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE exceeds POA (after a POR event), a Maxim laser driver TX_POR bit is CC DS1886 ...

Page 79

... Nonvolatile (SEE 00h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE exceeds POA (after a POR event), a Maxim laser driver TX_POR bit is CC DS1886 ...

Page 80

... POA (after a POR event), a Maxim laser driver TX_POR bit is CC 13b. 00h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE exceeds POA (after a POR event), a Maxim laser driver TX_POR bit is CC DS1886 POW_LEV_INIT ...

Page 81

... POA (after a POR event), a Maxim laser driver TX_POR bit is CC 00h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE exceeds POA (after a POR event), a Maxim laser driver TX_POR bit is CC DS1886 ...

Page 82

... PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE 00h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE DS1886 BIT BIT 0 ...

Page 83

... Nonvolatile (SEE exceeds POA (after a POR event), a Maxim laser driver TX_POR bit is set CC 00h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE) RSTRT_3710 RESERVED RESERVED DS1886 RESERVED RESERVED 0 2 BIT 0 RESERVED BIT 0 CC ...

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... PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Volatile RESERVED RESERVED RESERVED 00h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (SEE DS1886 3WMAN_3945 3WRW 3WDIS BIT BIT 0 ...

Page 85

... PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) N/A Volatile 00h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) N/A Nonvolatile (SEE DS1886 BIT BIT 0 ...

Page 86

... PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) N/A Nonvolatile (SEE 00h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) N/A Nonvolatile (SEE 00h N/A N/A Nonvolatile (SEE) DS1886 BIT 0 (see the ...

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... MODULATION VALUE MODULATION LUT 4 x MOD OFFSET LUT N/A N/A 00h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (EE DS1886 A2h Table 04h Register Descriptions ...

Page 88

... PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (EE DS1886 A2h Table 06h Register Descriptions ...

Page 89

... PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (EE 00h PW2 or (PW1 and RWTBL246) or (PW1 and RBL246) PW2 or (PW1 and RWTBL246) Nonvolatile (EE DS1886 BIT ...

Page 90

... PW2 or (PW1 and RWTBL78) Nonvolatile (EE N/A N/A 00h PW2 or (PW1 and RWTBL78) or (PW1 and RTBL78) PW2 or (PW1 and RWTBL78) Nonvolatile (EE DS1886 A2h Table 08h Register Descriptions A2h Table 09h Register Descriptions BIT ...

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... RoHS status. PACKAGE Electrical 24 TQFN- Ordering Information PART TEMP RANGE PIN-PACKAGE -40NC to 95NC 24 TQFN-EP -40NC to 95NC 24 TQFN-EP Package Information PACKAGE OUTLINE TYPE CODE NO. T24451 21-0201 DS1886 BIT 0 LAND PATTERN NO. 90-0083 ...

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... Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2012 Maxim Integrated Products © SFP and PON ONU Controller with Digital LDD Interface DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc. DS1886 Revision History PAGES CHANGED 92 ...

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