RFRX8888 Low Noise, High-output xPON Video Receiver

8th December 2010

ES Admin

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RFMD’s new RFRX8888 video receiver performs transimpedance amplification of the differential input from a high performance 1550nm optical wavelength photo detector (PD), all with best-in-class noise performance. This IC's output is linear low distortion RF from 48 MHz to 1002 MHz. RFRX8888 is ideal for 1550nm optical wavelength RF analog or digital overlay video receive circuitry employed in xPON FTTP ONT triplexer and quadplexer modules.

Its first stage features integrated bias circuitry simplifying external-to-IC end product design and lowering overall end product assembly cost. Optimized for operation from a +12 VDC power supply with a highly efficient power consumption of just 1.4 W, it eliminates the need for a supplemental ONT power supply in most xPON applications.

RFRX8888’s ultra-low noise performance, combined with high output power, extends the performance and lifetime of wired networks by improving the link margin and/or allowing more passive optical splits.

For FTTP applications requiring +5 VDC power supply operation, the RFRX8890 video receiver is also available.

Features

* +12V Single Supply Operation
* On-Die Bias Circuitry Reduces Cost and Board Area
* Best-in-Class Low Noise (<3.0 pA/rtHz Equivalent Input Noise Current)
* Low Power: 1.4 W at +12V
* Best-in-Class +23 dBmV per Channel RF Output Capability
* Linearity Better Than -63 dBc CSO and -66 dBc CTB at +23 dBmV RF Out Per Channel
(79-NTSC Equivalent Channels)
* 48 MHz to 1002 MHz Operational Bandwidth
* 30 dB AGC Range
* Excellent MER

Application

* xPON RF Overlay Video Receiver for FTTX Triplexer-equipped Optical Network Termination (ONT) and RFoG Network Interface Unit (NIU)