Renesas Electronics Corporation

The 849N202I is a highly flexible FemtoClock® NG general purpose, low phase noise Universal Frequency Translator™ / Synthesizer with alarm and monitoring functions suitable for networking and communications applications. It is able to generate any output frequency in the 0.98MHz - 312.5MHz range and most output frequencies in the 312.5MHz - 1,300MHz range (see Table 3 for details). A wide range of input reference clocks and a range of low-cost fundamental mode crystal frequencies may be used as the source for the output frequency. The 849N202I has three operating modes to support a very broad spectrum of applications. To see other devices in this product family, visit theUniversal Frequency Translatorspage.

The 851010I is a 1-to-10 Differential HCSL Fanout Buffer. The 851010I is designed to translate any differential signal levels to differential HCSL output levels. An external reference resistor is used to set the value of the current supplied to an external load. The load resistor value is chosen to equal the value of the characteristic line impedance of 50?. The 851010I is characterized at an operating supply voltage of 3.3V. The differential HCSL outputs, accurate crossover voltage and symmetric duty cycle makes the 851010I ideal for interfacing to PCI Express® and FBDIMM applications.

The 85102I is a low skew, high performance 1-to-2 Differential-to-HCSL fanout buffer. The 85102I has a differential clock input. The CLK0, nCLK0 input pair can accept most standard differential input levels. The clock enable is internally synchronized to eliminate runt clock pulses on the output during asynchronous assertion/deassertion of the clock enable pin. Guaranteed output and part-to-part skew characteristics make the 85102I ideal for those applications demanding well defined performance and repeatability.

The 85108I is a low skew, high performance 1-to-8 Differential-to-0.7V HCSL Clock Distribution Chip. The 85108I CLK, nCLK pair can accept most differential input levels and translates them to 3.3V HCSL output levels. The 85108I provides a low power, low noise, low skew, point-to-point solution for distributing HCSL clock signals. Guaranteed output and part-to-part skew specifications make the 85108I ideal for those applications demanding well defined performance and repeatability.

The 85211I-01 is a low skew, high performance 1-to-2 Differential-to-HSTL Fanout Buffer. The CLK, nCLK pair can accept most standard differential input levels. The 85211I- 01 is characterized to operate from a 3.3V power supply. Guaranteed output and part-to-part skew characteristics make the 85211I-01 ideal for those clock distribution applications demanding well defined performance and repeatability. For optimal performance, terminate all outputs.

The 85214I is a low skew, high performance 1-to-5 Differential-to-HSTL Fanout Buffer. The CLK0, nCLK0 pair can accept most standard differential input levels. The single ended CLK1 input accepts LVCMOS or LVTTL input levels. Guaranteed output and part to part skew characteristics make the 85214I ideal for those clock distribution applications demandingwell defined performance and repeatability.