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TZA3046 - Fiber Channel / Gigabit Ethernet Transimpedance Amplifier

Description

The TZA3046 is a transimpedance amplifier with Automatic Gain Control (AGC), designed to be used in Fiber Channel/Gigabit Ethernet (FC/GE) fiber optic links.

It amplifies the current generated by a photo detector (PIN diode or avalanche photodiode) and converts it to a differential output voltage.

Features

  • I I I I I I I I I I Low equivalent input noise current, typically 126 nA (RMS) Wide dynamic range, typically 2.5 µA to 1.7 mA (p-p) Differential transimpedance of 7.5 kΩ (typical) Bandwidth from DC to 1050 MHz (typical) Differential outputs On-chip AGC with possibility of external control Single supply voltage 3.3 V, range 2.97 V to 3.6 V Bias voltage for PIN diode On-chip current mirror of average photo current for RSSI monitoring Identical ports available on both sides of die for easy bond lay.

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Full PDF Text Transcription

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www.DataSheet4U.com TZA3046 Fiber Channel/Gigabit Ethernet transimpedance amplifier Rev. 01 — 19 May 2006 Product data sheet 1. General description The TZA3046 is a transimpedance amplifier with Automatic Gain Control (AGC), designed to be used in Fiber Channel/Gigabit Ethernet (FC/GE) fiber optic links. It amplifies the current generated by a photo detector (PIN diode or avalanche photodiode) and converts it to a differential output voltage. It offers a current mirror of average photo current for RSSI monitoring to be used in SFF-8472 compliant modules. The low noise characteristics makes it suitable for FC/GE applications, but also for FTTx applications. CAUTION This device is sensitive to ElectroStatic Discharge (ESD). Therefore care should be taken during transport and handling. 2.
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