ds1863 Maxim Integrated Products, Inc., ds1863 Datasheet
ds1863
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ds1863 Summary of contents
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... Rev 1; 12/06 General Description The DS1863 controls and monitors all the burst-mode transmitter and video receiver biasing functions for a passive optical network (PON) transceiver. It has an APC loop with tracking-error compensation that provides the reference for the laser-driver’s bias current, and a tem- perature indexed lookup table (LUT) that controls the modulation current ...
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Burst-Mode PON Controller With Integrated Monitoring ABSOLUTE MAXIMUM RATINGS Voltage SDA and SCL Pin Relative CC to Ground....................................................................-0. Voltage on BEN, TX-D, TX-F, MON1–MON3, BMD Relative to Ground ...............................-0. (subject to not exceeding ...
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ANALOG INPUT CHARACTERISTICS (BMD +2.85V to +5. -40°C to +95° PARAMETER BMD Full-Scale Voltage Range Resolution V Error APC V Integral Nonlinearity APC V Differential Nonlinearity APC V Temp Drift APC Input Resistance ...
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... Note 6: Eight ranges allow the full-scale range to change from 312.5mV to 1.25V. Note 7: The output impedance of the DS1863 is proportional to its scale setting. For instance, if using the 1/2 scale, the output impedance would be 1.5kΩ. Note 8: This specification applies to the expected full-scale value for the selected range. See Mod Ranging byte for available full- scale ranges ...
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3.3V +25°C, unless otherwise noted SUPPLY CURRENT vs. SUPPLY VOLTAGE 4.00 SDA = SCL = V CC 3.85 3.70 +95°C 3.55 3.40 3.25 3.10 +25°C 2.95 -40°C 2.80 2.65 2.50 2.85 3.35 3.85 ...
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Burst-Mode PON Controller With Integrated Monitoring PIN NAME 1 BEN Burst Enable Input. Triggers the sampling of the APC and Quick-trip monitors. 2 TX-D Transmit Disable Input. Disables BIAS and MOD outputs. 3 N.C. No Connection 4 TX-F Transmit Fault ...
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... DS1863 MEMORY ORGANIZATION SDA INTERFACE SCL TABLE 01h V CC USER MEMORY GND V AND ALARM CC MON1 MON2 13-BIT MON3 TEMP SENSOR SAMPLE BEN CONTROL BMD HBIAS QUICK TRIP LIMIT HTXP QUICK TRIP LIMIT MUX LTXP QUICK TRIP LIMIT APC SETPOINT FROM ...
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... APC set point of the system. Scaling of the reference voltage along with the modulation output can be uti- lized to implement GPON power leveling. The DS1863 has a Lookup Table to allow the APC set point to change as a function of temperature to com- APC Control pensate for Tracking Error (TE). The TE LUT (Table 05h), has 36 entries that determine the APC setting in 4° ...
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... VOLTAGE BIAS CURRENT I STEP BIAS SAMPLE Figure 1. DS1863 Power-Up. Burst-Mode PON Controller With Integrated Monitoring fied, the MOD output will be enabled with the value determined by the temperature conversion and the modulation LUT. When the MOD output is enabled and BEN is high, the ...
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... Transmit Disable (TX-D) If TX-D is asserted (logic 1) during operation, the out- puts will immediately turn off (t OFF deasserted (logic 0), the DS1863 will turn on the MOD output with the value associated with the present tem- perature, and initialize the I using the same search BIAS algorithm as done at start-up ...
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... I ified ADC ranges to calibrate the ADC full scale to a factor of 1/2 signals. The DS1863 can then right shift the results by n bits to maintain the bit weight of their specification. ADC Default Monitor Full Scale Ranges SIGNAL (UNITS) ...
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... TX-F reset bit, TX-D, soft TX- power cycling the part. If the FETG output is configured to trigger TX-F, then it is indi- cating that the DS1863 is in shutdown, and will require TX-D, soft TX-D, or cycling power to reset. The ADC and Quick-trip alarms (with the exception of BIAS MAX) are ignored for the first 8-10 bias current updates dur- ing power up ...
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... POA up the ATB will be zeros until alarms dictate otherwise. DS1863 will have an ID hard coded to its die. Two reg- isters (Table 02h bytes 86h–87h) are assigned for this feature. Byte 86h will read 63h to identify the part as the DS1863, byte 87h will read to A1h (for A1 die revision) ...
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... Table 01h in memory) the default Device Address , the SEE is POA is A2h until V address to be recalled from the EEPROM. falls POA holds the DS1863 in reset until then the SRAM level (V CC with its ADC and compare analog signals with its quick- trip monitors ...
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... VALUE Figure 7. DS1863 Digital and Analog Power-On Reset. DS1863 Memory Map Memory Organization The DS1863 features six memory banks that include the following. The Lower Memory is addressed from 00h to 7Fh and contains alarm and warning thresholds, flags, masks, several control registers, password entry area (PWE), and the Table Select byte. The Table Select Byte deter- mines which Table (01h– ...
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... F8 MISC. CONTROL BITS 255 FF FFh Figure 8. DS1863 Memory Map Master Device: The master device controls the slave devices on the bus. The master device generates SCL clock pulses, START and STOP conditions. Slave Devices: Slave devices send and receive data at the master’ ...
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... R the mas- ter indicates it will write data to the slave the master will read data from the slave incorrect slave address is written, the DS1863 will assume the master is communicating with another I communications until the next START condition is sent. ...
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... The DS1863 writes bytes (1 page or row) with a single write transaction. This is internally controlled by an address counter that allows ...
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... RESERVED RESERVED PWE MSB <2> <3> <4> <5> All All PW2 All N and PW2 + All DS1863 mode bit Har dwar e ____________________________________________________________________ WORD 2 WORD 3 BYTE 4/C BYTE 5/D BYTE 6/E TEMP WARN HI TEMP WARN WARN WARN LO MON1 WARN HI MON1 WARN LO MON2 WARN HI MON2 WARN LO ...
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... ALARM 2 ALARM 1 ALARM 0 <3> <4> <5> All All PW2 All N and PW2 + All DS1863 mode bit Har dwar e WORD 2 WORD 3 BYTE 4/C BYTE 5/D BYTE 6 ...
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... FETG EMPTY EMPTY EMPTY MAN_CNTL RESERVED <2> <3> <4> <5> All All PW2 All N and PW2 + All DS1863 mode bit Har dwar e ____________________________________________________________________ WORD 2 WORD 3 BYTE 4/C BYTE 5/D BYTE 6/E < 4> < 4> < 10 > BIAS DAC 2 BIAS DAC 2 DEV ICE ID DEVICE COMP RSHIFT 1 ADDRESS RANGING ...
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... <3> <4> <5> All All PW2 All Al l and PW2 + All DS1863 mode bit Har dwar e WORD 2 WORD 3 BYTE 4/C BYTE 5/D BYTE 6 ...
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... APC REF APC REF APC REF APC REF APC REF APC REF <2> <3> <4> <5> All All PW2 All N and PW2 + All DS1863 mode bit Har dwar e ____________________________________________________________________ WORD 2 WORD 3 BYTE 4/C BYTE 5/D BYTE 6/E MOD MOD MOD MOD MOD MOD MOD MOD MOD MOD ...
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Burst-Mode PON Controller With Integrated Monitoring Lower Memory Register 00h to 01h: Temp Alarm Hi FACTORY DEFAULT: 7FFFh READ ACCESS All WRITE ACCESS PW2 MEMORY TYPE: Nonvolatile (SEE) 6 00h 01h 2 2 bit7 Temperature measurements ...
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Lower Memory Register 06h to 07h: Temp Warn Lo FACTORY DEFAULT: 8000h READ ACCESS All WRITE ACCESS PW2 MEMORY TYPE: Nonvolatile (SEE) 6 06h 07h 2 2 bit7 Temperature measurements below this 2’s complement threshold will ...
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Burst-Mode PON Controller With Integrated Monitoring Lower Memory Register 0Ch to 0Dh: V FACTORY DEFAULT: FFFFh READ ACCESS All WRITE ACCESS PW2 MEMORY TYPE: Nonvolatile (SEE 0Ch 0Dh 2 2 bit7 Voltage measurements of ...
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Lower Memory Register 12h to 13h: MON1 Alarm Lo FACTORY DEFAULT: 0000h READ ACCESS All WRITE ACCESS PW2 MEMORY TYPE: Nonvolatile (SEE 12h 13h 2 2 bit7 Voltage measurements of the MON1 input below ...
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Burst-Mode PON Controller With Integrated Monitoring Lower Memory Register 18h to 19h: MON2 Alarm Hi FACTORY DEFAULT: FFFFh READ ACCESS All WRITE ACCESS PW2 MEMORY TYPE: Nonvolatile (SEE 18h 19h 2 2 bit7 Voltage ...
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Lower Memory Register 1Eh to 1Fh: MON2 Warn Lo FACTORY DEFAULT: 0000h READ ACCESS All WRITE ACCESS PW2 MEMORY TYPE: Nonvolatile (SEE 1Eh 1Fh 2 2 bit7 Voltage measurements of the MON2 input below ...
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Burst-Mode PON Controller With Integrated Monitoring Lower Memory Register 24h to 25h: MON3 Warn Hi FACTORY DEFAULT: FFFFh READ ACCESS All WRITE ACCESS PW2 MEMORY TYPE: Nonvolatile (SEE 24h 25h 2 2 bit7 Voltage ...
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Lower Memory Register 30h to 5Fh: PW2 EE FACTORY DEFAULT: 00h READ ACCESS All WRITE ACCESS PW2 MEMORY TYPE: Nonvolatile (EE) 30h-5Fh EE EE bit7 Nonvolatile EEPROM memory. PW2 level access controlled ROM data for end user. Lower Memory Register ...
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Burst-Mode PON Controller With Integrated Monitoring Lower Memory, Register 6Ah to 6D: Reserved POWER-ON VALUE 00h READ ACCESS All WRITE ACCESS N/A MEMORY TYPE These registers are reserved. The value when read is 00h. Lower Memory, Register 6Eh: Status POWER-ON ...
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... Lower Memory, Register 6Fh: Update POWER-ON VALUE 00h READ ACCESS All WRITE ACCESS All + DS1863 Hardware MEMORY TYPE Volatile 6Fh TEMP RDY V RDY CC bit7 Status of completed conversions. At Power-On, these bits are cleared and will be set as each conversion is completed. These bits can be cleared so that a completion of a new conversion is verified. ...
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Burst-Mode PON Controller With Integrated Monitoring Lower Memory, Register 70h: Alarm 3 POWER-ON VALUE 10h READ ACCESS All WRITE ACCESS N/A MEMORY TYPE Volatile 70h TEMP HI TEMP LO bit7 Alarm Status Bits TEMP HI: High Alarm Status for Temperature ...
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Lower Memory, Register 71h: Alarm 2 POWER-ON VALUE 00h READ ACCESS All WRITE ACCESS N/A MEMORY TYPE Volatile 71h MON3 HI MON3 LO bit7 Alarm Status Bits MON3 HI: High Alarm Status for MON3 measurement (Default) Last measurement ...
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Burst-Mode PON Controller With Integrated Monitoring Lower Memory, Register 72h: Alarm 1 POWER-ON VALUE 00h READ ACCESS All WRITE ACCESS N/A MEMORY TYPE Volatile 72h RESERVED RESERVED bit7 Alarm Status Bits bit7:4 RESERVED BIAS HI: High Alarm Status Bias; Fast ...
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Lower Memory, Register 74h: Warn 3 POWER-ON VALUE 10h READ ACCESS All WRITE ACCESS N/A MEMORY TYPE Volatile 74h TEMP HI TEMP LO bit7 Warning Status Bits bit7 TEMP HI: High Warning Status for Temperature measurement (Default) Last ...
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... Password Entry. There are two passwords for the DS1863. 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 ...
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... READ ACCESS All WRITE ACCESS All MEMORY TYPE Volatile 7 6 7Fh 2 2 bit7 The upper memory tables (Table 01h–Table 05h) of the DS1863 are accessible by writing the correct table value in this register. Burst-Mode PON Controller With Integrated Monitoring ____________________________________________________________________ ...
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Burst-Mode PON Controller With Integrated Monitoring Table 01h, Registers Table 01h, Register 80h to F7h: PW1 EEPROM POWER-ON VALUE 00h READ ACCESS PW1 WRITE ACCESS PW1 MEMORY TYPE Nonvolatile(EE) 80h-F7h EE EE bit7 EEPROM for PW1 level access. Table 01h, ...
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Table 01h, Register FAh: Alarm 1 POWER-ON VALUE 00h READ ACCESS All WRITE ACCESS PW1 MEMORY TYPE Volatile FAh BIAS HI TX-P HI bit7 Layout is identical to Alarm 1 1. These bits are latched. They are cleared by power-down ...
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Burst-Mode PON Controller With Integrated Monitoring Table 01h, Register FDh: Warn 2 POWER-ON VALUE 00h READ ACCESS All WRITE ACCESS PW1 MEMORY TYPE Volatile FDh MON3 HI MON3 LO bit7 Layout is identical to Warn in Lower Memory Register 75h ...
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Table 02h, Registers Table 02h, Register 80h: Mode POWER-ON VALUE 0Fh READ ACCESS PW2 WRITE ACCESS PW2 MEMORY TYPE Volatile 80h SEEB RESERVED bit7 SEEB Enables EEPROM writes to SEE bytes in Table 02h (Default). bit7 1 = ...
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Burst-Mode PON Controller With Integrated Monitoring Table 02h, Register 81h: Tindex POWER-ON VALUE 00h READ ACCESS PW2 WRITE ACCESS PW2 and (AEN = 0) MEMORY TYPE Volatile 7 6 81h 2 2 bit7 Holds the calculated index based on the ...
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Table 02h, Register 84h to 85h: BIAS DAC FACTORY DEFAULT 00 00h READ ACCESS PW2 WRITE ACCESS PW2 and (BIAS- MEMORY TYPE Volatile 84h 85h 2 2 bit7 The digital value used for IBIAS. ...
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Burst-Mode PON Controller With Integrated Monitoring Table 02h, Register 88h: Update Rate FACTORY DEFAULT 00h READ ACCESS PW2 WRITE ACCESS PW2 MEMORY TYPE Nonvolatile (SEE) Defines the update rate for comparison of APC control. 88h 0 0 bit7 bit7:4 0 ...
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Table 02h, Register 89h: Config FACTORY DEFAULT 00h READ ACCESS PW2 WRITE ACCESS PW2 MEMORY TYPE Nonvolatile (SEE) 89h bit7 Configure the memory location and the polarity of the digital outputs. ...
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Burst-Mode PON Controller With Integrated Monitoring Table 02h, Register 8Bh: MOD Ranging FACTORY DEFAULT: 00h READ ACCESS PW2 WRITE ACCESS PW2 MEMORY TYPE: Nonvolatile (SEE) 8Bh RESERVED RESERVED bit7 The lower nibble of this byte controls the Full-Scale range of ...
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Table 02h, Register 8Dh: Comp Ranging FACTORY DEFAULT: 00h READ ACCESS PW2 WRITE ACCESS PW2 MEMORY TYPE: Nonvolatile (SEE) 8Dh RESERVED RESERVED bit7 This byte controls the Full-Scale range for the Quick-Trip monitoring of the APC reference as well as ...
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Burst-Mode PON Controller With Integrated Monitoring Table 02h, Register 8Fh: Right Shift 0 FACTORY DEFAULT: 00h READ ACCESS PW2 WRITE ACCESS PW2 MEMORY TYPE: Nonvolatile (SEE) 8Fh RESERVED MON3_2 bit7 Allows for right-shifting the final answer of MON3 voltage measurements. ...
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Table 02h, Register 94h to 95h: MON1 Scale Table 02h, Register 96h to 97h: MON2 Scale Table 02h, Register 98h to 99h: MON3 Scale FACTORY CALIBRATED PW2 READ ACCESS PW2 WRITE ACCESS MEMORY TYPE Nonvolatile (SEE 94h 2 ...
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Burst-Mode PON Controller With Integrated Monitoring Table 02h, Register A4h to A5h: MON1 Offset Table 02h, Register A6h to A7h: MON2 Offset Table 02h, Register A8h to A9h: MON3 Offset 0000h FACTORY DEFAULT READ ACCESS PW2 PW2 WRITE ACCESS MEMORY ...
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Table 02h, Register B0h to B3h: PW1 FACTORY DEFAULT FFFF FFFFh READ ACCESS N/A WRITE ACCESS PW2 MEMORY TYPE Nonvolatile (SEE B0h B1h B2h B3h 2 ...
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Burst-Mode PON Controller With Integrated Monitoring Table 02h, Register B8h: FETG Enable FACTORY DEFAULT 00h READ ACCESS PW2 WRITE ACCESS PW2 MEMORY TYPE Nonvolatile (SEE) B8h bit7 Configures the maskable ...
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Table 02h, Register B9h: FETG Enable FACTORY DEFAULT 00h READ ACCESS PW2 WRITE ACCESS PW2 MEMORY TYPE Nonvolatile (SEE) B9h bit7 Configures the maskable interrupt for the ...
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Burst-Mode PON Controller With Integrated Monitoring Table 02h, Register BAh: TX-F Enable FACTORY DEFAULT 00h READ ACCESS PW2 WRITE ACCESS PW2 MEMORY TYPE Nonvolatile (SEE) BAh bit7 Configures the maskable ...
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Table 02h, Register BBh: TX-F Enable FACTORY DEFAULT 00h READ ACCESS PW2 WRITE ACCESS PW2 MEMORY TYPE Nonvolatile (SEE) BBh bit7 Configures the maskable interrupt for the ...
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Burst-Mode PON Controller With Integrated Monitoring Table 02h, Register BCh: HTXP FACTORY DEFAULT: 00h READ ACCESS PW2 WRITE ACCESS PW2 MEMORY TYPE: Nonvolatile (SEE) BCh bit7 Fast comparison DAC adjust for High TXP. This value is ...
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Table 02h, Register BFh: MAX IBIAS FACTORY DEFAULT: 00h READ ACCESS PW2 WRITE ACCESS PW2 MEMORY TYPE: Nonvolatile (SEE BFh 2 2 bit7 Thi s val efi ne the m axi m ...
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Burst-Mode PON Controller With Integrated Monitoring Table 02h, Register FBh to FFh: Reserved FACTORY DEFAULT READ ACCESS WRITE ACCESS MEMORY TYPE: These registers are reserved. Table 03h, Register Descriptions Table 03h, Register 80h to FFh: PW2 EEPROM FACTORY DEFAULT 00h ...
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... Maxim Integrated Products is a registered trademark of Dallas Semiconductor Corporation. Springer Burst-Mode PON Controller With Integrated Monitoring For the latest package outline information www.maxim-ic.com/DallasPackInfo registered trademark of Maxim Integrated Products, Inc bit0 Package Information ...