The UX3328 is an ONU intelligent limiting amplifier and burst mode laser driver for PON applications. The limiting amplifier can be operated in 2.5Gbps. The laser driver can be operated in 1.25Gbps/2.5Gb
ps burst mode and continous mode. The UX3328 could be applied to GEPON, GPON and BPON. It can be set by IIC from external EEPROM or MCU. The UX3328 has DDM functions. It can read and calibrate VCC, temperature, Ibias, transmitter power, receiver power.
Features
Laser driver
I bias current up to 100 mA;
I mod current up to 80 mA;
Burst on/off time < 5 ns;
TX SD delay time < 100ns or < 400ns, could be programmed;
Digital APC and fast start-up function in burst mode;
Open loop with temperature look up table for Ibias and Imod;
Supports 0dB, -3dB, -6dB APC power leveling settings;
LDD has low power mode (sleep mode).
Limiting Amplifier
有机光电
材料4 mV input sensitivity at 2.5Gbps;
Selectable bandwidth and output swing;
Signal detection and Jam functions;
LA has low power mode (sleep mode).
Digital interface
Programmable IIC interface;
方波信号发生器Build in Digital Diagnostic Monitor processor;
Device settings stored in external EEPROM;
With a DA output for APD control.
Applications
BPON, GEPON, GPON
SFF/SFP modules
Digital Video
引向器Pin Configuration
Figure 1. Pin configuration QFN32 1 Ordering Information
UX3328, QFN32, 5mm×5mm
2 Pin Description
3 Key Specifications
3.1 Absolute Maximum Ratings硫铁矿制硫酸
operating beyond these limits.
3.2 Continuous Ratings
3.3 Limiting Amplifier
**: when squelch function is enabled and input signal is less than threshold level.
3.4 Transmitter
3.4.1 Transmitter Inputs: LDIN/LDIP, BENN/BENP
119b3.4.2 Laser Driver
3.4.3 Burst Mode Timings
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