MAX24001 Datasheet, PDF (1/53 Pages) Maxim Integrated Products – 2.5GBPS TX BURST-MODE LASER TRANSCEIVER

MAX24001
2.5Gbps Tx Burst-Mode Laser Transceiver
General Description
The MAX24001 is a complete burst-mode laser driver
transmitter and limiting amplifier receiver for use
within fiber optic modules for FTTx applications. A
fully compliant GPON/GEPON module with digital
diagnostics can be realized when used with a 2KB
EEPROM and suitable optics. Alternatively, a
microcontroller can be used in conjunction with the
MAX24001; however, this is not a necessity in order
to achieve SFF-8472 compliance.
The 2.5Gbps limiting receive path features
programmable output swing control, rate selection,
and OMA-based loss-of-signal detection. Functions
are also provided which facilitate the implementation
of APD biasing without the need for an external DC-
DC converter.
The burst-mode laser driver has temperature
compensated modulation control using a lookup
table. Closed-loop control of laser power incorporates
tracking error compensation and has multiple options
for rapidly settling the laser power thus enabling fast
registration and shutdown on the network.
Diagnostics are enhanced with the inclusion of
programmable transmit signal detection during
bursts, and rogue ONU detection between bursts.
This is linked to a laser safety system which allows
the modulation and bias currents to be shut off in
response to a range of different fault conditions
detected on-chip.
The transmit and receive systems are independently
powered and can respond separately to the SLEEP
pin. The MAX24001 is highly configurable from either
EEPROM or low-cost MCU using a two-wire
interface.
Applications
GPON, GEPON, Gigabit Ethernet
RX_OUT+
RX_OUT-
TX_FAULT / DAC
APD_CTRL
ADC
SCL_SLAVE
SDA_SLAVE
SCL_MASTER
SDA_MASTER
SLEEP
BEN+
BEN-
TX_IN+
TX_IN-
Functional Diagram
2.5Gbps Limiting Receiver
RX_IN+
RX_IN-
LOS/SD
RSSI
TSENSE
TSENSE_RET
MPD
TX_DISABLE
TX_SD /
TX_FAULT
BIAS
TX_OUT+
TX_OUT-
2.5Gbps Burst mode laser driver
Features
 2.5Gbps Limiting Receiver
 Integrated APD Bias Loop With Overvoltage
And Overcurrent Protection
 OMA-Based LOS Detection
 1.25Gbps to 2.5Gbps Laser Driver
 CML, LVPECL, HSTL, SSTL-Compatible
Inputs
 Open and Closed-Loop Bias Control
 Temperature-Compensated I_MOD Control
 Highly Configurable Laser Safety System
 Transmit TX_SD and Rogue ONU Detection
 SFP MSA and SFF-8472 Digital Diagnostics
 Integrated Temperature Sensor
 Power-Saving SLEEP Modes
 External DAC, ADC, and PWM Interfaces
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX24001TL+ -40C to +95C 40 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
19-6460; Rev 0; 11/12
Maxim Integrated 1
Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple
revisions of any device may be simultaneously available through various sales channels. For information about device
errata, go to: www.maximintegrated.com/errata. For pricing, delivery, and ordering information, please contact
Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.