OQ2545BHP Philips Semiconductors, OQ2545BHP Datasheet - Page 2

• Manufacturer Part Number: OQ2545BHP
• Description: SDH/SONET STM16/OC48 laser drivers
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FEATURES
APPLICATIONS
ORDERING INFORMATION
1999 Aug 24
OQ2545HP
OQ2545BHP
Differential 50
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.
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.
SDH/SONET STM16/OC48 laser drivers
NUMBER
TYPE
inputs for direct connection to
LQFP48
NAME
plastic low profile quad flat package; 48 leads; body 7
2
DESCRIPTION
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 monitoring. In addition, the OQ2545HP
features differential clock inputs for internal retiming
resulting in a better jitter performance.
The IC has bias and modulating current outputs, the levels
of which can be set separately. As an additional safety
measure, the active HIGH-level input for automatic laser
shutdown (pin ALS) can be used to switch off the laser
modulation and bias currents.
Although the IC is intended for 2.5 Gbits/s optical
transmission systems, it can be used in any application
requiring high current drive at high frequencies.
The IC is transparent from input to output.
PACKAGE
OQ2545HP; OQ2545BHP
7
1.4 mm
Product specification
VERSION
SOT313-2