DS1875T+ Maxim Integrated Products, DS1875T+ Datasheet - Page 14

• Manufacturer Part Number: DS1875T+
• Description: IC SFP CTRLR/TRIPLEXER 38-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of DS1875T+

• Applications: Fiber Optics
• Interface: I²C
• Voltage - Supply: 2.85 V ~ 3.9 V
• Package / Case: *
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PON Triplexer and SFP Controller
14
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MON5/D0
MON6/D1
MON7/D2
MON8/D3
MON3N
MON3P
MON1
MON2
MON4
TX-D
BMD
LOSI
GND
SDA
SCL
BEN
V
CC
TRACKING-ERROR TABLE
V
CC
APC SET POINT FROM
QUICK-TRIP LIMIT
QUICK-TRIP LIMIT
QUICK-TRIP LIMIT
MON5
MON6
MON7
MON8
INTERFACE
SENSOR
MON[5:8]
TEMP
I
2
V
C
CC
HBIAS
CONTROL
HTXP
SAMPLE
256 BYTES AT
LTXP
A0h SLAVE
ADDRESS
EEPROM
0
1
0
1
MUX
TTL
TTL
TTL
TTL
TTL
TTL
DS1875 MEMORY ORGANIZATION
CONFIGURATION AND CALIBRATION
USER MEMORY, ALARM TRAP
DAC WITH
SCALING
13-BIT
ADDITIONAL MONITORS
ADC
8-BIT
TABLE 00h (EEPROM)
TABLE 01h (EEPROM)
TABLE 02h (EEPROM)
TABLE 03h (EEPROM)
TABLE 04h (EEPROM)
MODULATION LUT
USER MEMORY
MUX
LOS STATUS/
D0 IN
D0 OUT
INV0
MUX0
D1 IN
D1 OUT
D2 IN
D2 OUT
INV M3QT
M3QT
MUX2
D3 IN
D3 OUT
COMPARATOR FOR
DIGITAL LIMIT
ADC RESULTS
MAIN MEMORY
EEPROM/SRAM
LUT CAN BE INDEXED BY
I
2
ALARM/WARNING COMPARISONS
C CONTROL
ADC CONFIGURATION/RESULTS
PWM VOLTAGE
TEMP SENSOR
MUX
DS1875
SYSTEM STATUS BITS
TABLE 07h
TABLE 05h (EEPROM)
TABLE 06h (EEPROM)
TABLE 07h (EEPROM)
TABLE 08h (EEPROM)
BIAS OL LUT
ADC TE LUT
M4DAC LUT
PWM LUT
M4DAC LUT INDEXED BY MON4
QUICK TRIP
INTERRUPT
INTERRUPT
BIAS MAX
MASK
MASK
INTEGRATOR
PWM-DAC
DIGITAL
8-BIT
APC
I
2
C CONTROL
TX-D INPUT
TABLE 06h
MOD LUT
SRAM RESET
ENABLE
LATCH
POWER-ON ANALOG
TEMP INDEXED
NONMASKABLE
BIAS OL LUT
INTERRUPT
TABLE 08h
V
INTERRUPT
CC
LATCH
> V
FULL SCALE
FULL SCALE
POA
INTERRUPT
PWM
8-BIT, 2.5V
8-BIT, 2.5V
DAC WITH
SCALING
M4DAC
LATCH
MUX
DAC1
8-BIT
Block Diagram
13-BIT
DAC
TX-F
FETG
BIAS
MOD
SW
COMP
FB
M4DAC
DAC1