TZA3019 Datasheet | NXP Semiconductors

FEATURES - Dual postamplifier - Single 3.3 V power supply - Wideband operation from 50 k Hz to 2.5 GHz (typical value) - Fully differential - Channels are delay matched - On-chip DC-offset pensations without external capacitor - Interfacing with positive or negative supplied logic - Switching possibility between channels - Positive Emitter Coupled Logic (PECL) or Current-Mode Logic (CML) patible data outputs adjustable from 200 to 800 m V (p-p) single-ended - Power-down capability for unused outputs and detectors - Rise and fall times 80 ps (typical value) - Possibility to invert the output of each channel separately - Input level-detection circuits for Received Signal Strength Indicator (RSSI) or Loss Of Signal (LOS) detection, programmable from 0.4 to 400 m V (p-p) single-ended, with open-drain parator output for direct interfacing with positive or negative logic - Reference voltage for output level and LOS adjustment - Automatic strongest input signal switch possibility (TZA3019 version B) - HTQFP32 or HBCC32 plastic package with exposed pad. APPLICATIONS - Postamplifier for Synchronous Digital Hierarchy and Synchronous Optical Network (SDH/SONET) transponder - SDH/SONET wavelength converter - Crosspoint or channel switch - PECL driver - Fibre channel arbitrated loop - Protection ring - Monitoring - Signal level detectors - Swing converter CML 200 m V (p-p) to PECL 800 m V (p-p) - Port bypass circuit - 2.5 GHz clock amplification. GENERAL DESCRIPTION The TZA3019 is a low gain postamplifier multiplexer with a dual RSSI and/or LOS detector that is designed for use in critical signal path control applications, such as loop-through, redundant channel switching or Wavelength Division Multiplexing (WDM). The signal path is unregistered, so no clock is required for the data inputs. The signal path is fully differential and delay matched. It is capable of operating from 50 k Hz to 2.5 GHz. The TZA3019 HTQFP32 and HBCC32 packages can be delivered in three versions: -...