GENERAL DESCRIPTION
The OQ2545 is a driver IC intended to be used with a directly modulated laser diode or with an Electro Absorption Modulator (EAM) in SDH/SONET 2.5 Gbits/s optical transmission systems.

FEATURES
• Differential 50 Ω inputs for direct connection to Current-Mode Logic (CML) outputs
• Internal retiming to minimize jitter (OQ2545HP only)
• Input clock phase margin of 320° at 2.5 Gbits/s (OQ2545HP only)
• RF output current sinking capability of 60 mA
• Bias output current sinking capability of 100 mA
• TTL compatible control inputs
• Loop mode for system testing
• Continuous output monitoring
• Power dissipation <1500 mW (for typical application)
• Low cost LQFP48 plastic package.

APPLICATIONS
• Digital fibre optical modulation driver in STM16/OC48 short, medium and long haul optical transmission systems
• Optical modulation driver in high-speed data networks
• High current driver for electro-optical converters
• High current electrical line driver.