OQ2545HP - NXP

OQ2545HP SDH/SONET STM16/OC48 laser drivers

OQ2545HP; OQ2545BHP 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. The IC features differential data inputs. Loop mode inputs are provided for system testing, along with an output for continuous monit.

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 transm.