Renesas Electronics Corporation

The 8402 is a general purpose, Crystal-to-LVCMOS/LVTTL High Frequency Synthesizer. The 8402 has a selectable TEST_CLK or crystal inputs. The VCO operates at a frequency range of 250MHz to 700MHz. The VCO frequency is programmed in steps equal to the value of the input reference or crystal frequency. The VCO and output frequency can be programmed using the serial or parallel interfaces to the configuration logic. The low phase noise characteristics of the 8402 make it an ideal clock source for Gigabit Ethernet and SONET applications.

The 840NT4 is a PLL-based clock generator designed to interface with Freescale B4/T4 Processor systems. The clock generator offers low jitter, low-skew clock outputs, frequency margining (0.025MHz to 0.312MHz step granularity), and spread spectrum clocking that meets the ever-growing demands of Freescale’s next-generation processors.

The 840S05I is a four output, Crystal or single ended-to-LVCMOS/LVTTL Frequency Synthesizer and a member of family of high performance clock solutions from IDT. The 840S05I uses a 25MHz parallel resonant crystal to generate 33.33MHz – 166.67MHz clock signals, replacing solutions requiring multiple oscillator and fan-out buffer solution. The device supports output slew rate control with two slew select pins (SLEW[1:0]). The VCO operates at a frequency of 2GHz. The device has 2 output banks, Bank A with two 33.33MHz – 166.67MHz LVCMOS/LVTTL outputs and Bank B with two 33.33MHz – 166.67MHz LVCMOS/LVTTL outputs. The two banks have their own dedicated frequency select pins and can be independently set for the frequencies mentioned above. The low phase noise characteristic of the 840S05I makes it an ideal clock source for Gigabit Ethernet application. Designed for networking and industrial applications, the 840S05I can also drive the high-speed clock inputs of communication processors, DSPs, switches and bridges.

The 841602I is an optimized PCIe and sRIO clock generator. The device uses a 25MHz parallel crystal to generate 100MHz and 125MHz clock signals, replacing solutions requiring multiple oscillator and fanout buffer solutions. The device has excellent phase jitter (< 1ps rms) suitable to clock components requiring precise and low-jitter PCIe or sRIO or both clock signals. Designed for telecom, networking and industrial applications, the 841602I can also drive the high-speed sRIO and PCIe SerDes clock inputs of communication processors, DSPs, switches and bridges.

The 841654I is an optimized PCIe and sRIO clock generator. The device uses a 25MHz parallel crystal to generate 100MHz and 125MHz clock signals, replacing solutions requiring multiple oscillator and fanout buffer solutions. The device has excellent phase jitter (< 1ps rms) suitable to clock components requiring precise and low-jitter PCIe or sRIO or both clock signals. Designed for telecom, networking and industrial applications, the 841654I can also drive the high-speed sRIO and PCIe SerDes clock inputs of communication processors, DSPs, switches and bridges.

The 841664I is an optimized sRIO clock generator. The device uses a 25MHz parallel crystal to generate 125MHz and 156.25MHz clock signals, replacing solution requiring multiple oscillator and fanout buffer solutions. The device has excellent phase jitter (< 1ps rms) suitable to clock components requiring precise and low-jitter sRIO clock signals. Designed for telecom, networking and industrial application, the 841664I can also drive the high-speed sRIO SerDes clock inputs of communication processors, DSPs, switches and bridges.