MAX24001TL+ Maxim Integrated, MAX24001TL+ Datasheet - Page 15
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MAX24001TL+
Manufacturer Part Number
MAX24001TL+
Description
Laser Drivers 2.5G Burst Mode Laser Xcvr
Manufacturer
Maxim Integrated
Type
Laser Driverr
Datasheet
1.MAX24001TL.pdf
(53 pages)
Specifications of MAX24001TL+
Rohs
yes
Data Rate
2.5 Gbps
Operating Supply Voltage
3 V to 3.6 V
Supply Current
136 mA
Maximum Operating Temperature
+ 95 C
Package / Case
TQFN-40
Maximum Power Dissipation
2857.1 mW
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Part # Aliases
90-Y24001+XS1
The MPD current is compared with a threshold current set by the txsd_threshold register. This determines the
MPD current level at which both TX_SD and rogue ONU are detected.
When BEN = ‘0’ the TX_SD logic transfers the comparator output directly through to tx_sd. In addition, the Rogue
ONU Fault Detect logic transfers the comparator output through to the laser safety system. The
txsd_rogueonu_delay register specifies the delay (in cycles of the internal 64MHz clock) between the falling edge
of BEN and testing for rogue ONU. The rogue_onu_fault condition is not generated during this time.
When BEN = ‘1’ the TX_SD logic output goes high when the input from the comparator goes high. This state is
latched. The tx_sd signal will then remain high until either the end of the burst, or until the comparator output
remains low for a period of time exceeding the time defined by the txsd_deglitch_period register. This prevents
tx_sd from toggling during a burst due to the pattern sensitivity of the MPD current. (During bias loop fast-start,
tx_sd is held at ‘1’)
Selection between TX_SD and TX_FAULT functionality is governed by the txsd_select register. The txsd_allow
register holds the pin high until the configuration register load from EEPROM (or microcontroller) is complete. This
avoids multiple transitions on the TX_SD pin during initialization.
Maxim Integrated
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