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TZA3031BHL

NXP
Part Number TZA3031BHL
Manufacturer NXP
Description SDH/SONET STM1/OC3 laser drivers
Published Apr 16, 2005
Detailed Description INTEGRATED CIRCUITS DATA SHEET TZA3031AHL; TZA3031BHL; TZA3031U SDH/SONET STM1/OC3 laser drivers Preliminary specificat...
Datasheet PDF File TZA3031BHL PDF File

TZA3031BHL
TZA3031BHL

Overview
INTEGRATED CIRCUITS DATA SHEET TZA3031AHL; TZA3031BHL; TZA3031U SDH/SONET STM1/OC3 laser drivers Preliminary specification Supersedes data of 1998 Jul 29 File under Integrated Circuits, IC19 1999 Aug 24 Philips Semiconductors Preliminary specification SDH/SONET STM1/OC3 laser drivers FEATURES • 155 Mbits/s data input, both Current-Mode Logic (CML) and Positive Emitter Coupled Logic (PECL) compatible; maximum 800 mV (p-p) • Adaptive laser output control with dual loop, stabilizing optical ONE and ZERO levels • Optional external control of laser modulation and biasing currents (non-adaptive) • Automatic laser shutdown • Few external components required • Rise and fall times of 120 ps (typical value) • Jitter <50 mUI (p-p) • RF output current sinking capability of 60 mA • Bias current sinking capability of 90 mA • Power dissipation of 430 mW (typical value) • Low cost LQFP32 plastic package • Single 5 V power supply.
TZA3031AHL • Laser alarm output for signalling extremely low and high bias current conditions.
TZA3031BHL • Extra STM1 155 Mbits/s loop mode input; both CML and PECL compatible.
TZA3031U • Bare die version with combined bias alarm and loop mode functionality.
ORDERING INFORMATION TYPE NUMBER TZA3031AHL TZA3031BHL TZA3031U − bare die; 2000 × 2000 × 380 µm TZA3031AHL; TZA3031BHL; TZA3031U APPLICATIONS • SDH/SONET STM1/OC3 optical transmission systems • SDH/SONET STM1/OC3 optical laser modules.
GENERAL DESCRIPTION The TZA3031AHL, TZA3031BHL and TZA3031U are fully integrated laser drivers for STM1/OC3 (155 Mbits/s) systems, incorporating the RF path between the data multiplexer and the laser diode.
Since the dual loop bias and modulation control circuits are integrated on the IC, the external component count is low.
Only decoupling capacitors and adjustment resistors are required.
The TZA3031AHL features an alarm function for signalling extreme bias current conditions.
The alarm low and high threshold levels can be adjusted to suit the application using o...


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