843252-45 Series

FemtoClock Crystal-to-3.3V LVPECL Frequency Synthesizer

Manufacturer: Renesas Electronics Corporation

Catalog

FemtoClock Crystal-to-3.3V LVPECL Frequency Synthesizer

Part	Multiplier	Divider	Input Ratio	Output Ratio	PLL	Voltage - Supply (Minimum)	Voltage - Supply (Maximum)	Mounting Type	Output	Input	Type	Package Name	Differential Output	Differential Input	Operating Temperature (Max)	Operating Temperature (Min)	Frequency - Max	Number of Circuits	Package Length	Package Width
Renesas Electronics Corporation 843252AG-45LF	No	Yes	1	2	Yes	3.135 V	3.465 V	Surface Mount	LVPECL	Crystal	Frequency Synthesizer	16-TSSOP	Yes	No	70 °C	0 °C	156.25 MHz	1	0.173 in	4.4 mm

Catalog

FemtoClock Crystal-to-3.3V LVPECL Frequency Synthesizer

Description

The 843252-45 is a 2 LVPECL output synthesizer optimized to generate Ethernet reference clock frequencies. Using a 25MHz, 18pF parallel resonant crystal, the following frequencies can be generated: 156.25MHz and 125MHz. The 843252-45 uses our 3rd generation low phase noise VCO technology and can achieve 1ps or lower typical rms phase jitter, easily meeting Ethernet jitter requirements. The 843252-45 is packaged in a small 16-pin TSSOP package.