570BLF

Series:	ClockBlocks™
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Fanout Distribution, Spread Spectrum Clock Generator, Zero Delay Buffer
PLL:	Yes
Input:	Clock
Output:	CMOS
Number of Circuits:	1
Ratio - Input:Output:	1:2
Differential - Input:Output:	No/No
Frequency - Max:	170MHz
Divider/Multiplier:	Yes/Yes
Voltage - Supply:	3.15 V ~ 3.45 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	ICS570

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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

570BLF is a cost-effective solution for applications such as power sources, signal processors, and low power control systems. The 570BLF can be used to generate precision clock frequencies at very low jitter and low power consumption.

Overview

The 570BLF is a low power clock generator, phase locked loop (PLL), and frequency synthesizer. It is a low power integrated circuit (IC) designed to generate precision clock frequencies with very low jitter. It occupies a fraction of the area of a conventional crystal oscillator or surface mounted clock oscillator and is therefore ideal for cost sensitive applications. The 570BLF is available in two variants based on two different underlying architectures, the Hybrid Architecture and the Switching Frequency Divider (SFD) Architecture.

Hybrid Architecture

The Hybrid Architecture provides an innovative and cost-effective means of providing high frequency oscillations. It uses a ring oscillator with integrated logic to provide an output from the 50MHz to 350MHz range. The 570BLF utilizes the Vernier Tuning mechanism to provide precise frequency control and allows for custom frequency settings from 0.5 to 350MHz. The hybrid architecture also provides low power consumption, low jitter, and very low phase noise.

Switching Frequency Divider (SFD) Architecture

The SFD architecture of the 570BLF is comprised of two main functional blocks, the controllable oscillator and the frequency divider. The controllable oscillator consists of a Voltage Controlled Oscillator (VCO) and a Charge Pump. The Charge Pump is used to adjust the frequency of the VCO in order to achieve the right frequency output. The frequency divider operates on two clock pulses, an input clock and a feedback clock, and its output can range from 0.5 to 350MHz.

Applications

The 570BLF has a large variety of applications spanning from low power control systems, power sources, signal processors, and automotive power systems. It could be used as a high frequency clock generator for synchronizing operations of high frequency DSPs or for chip-to-chip synchronization for communication systems. Additionally, its phase locked loop (PLL) could be used for frequency hopping and spread spectrum systems.

Conclusion

The 570BLF is a highly versatile, low-power clock generator, phase locked loop (PLL), and frequency synthesizer that has a wide range of potential applications. Its hybrid architecture and switching frequency divider architecture allows it to generate precise clock frequencies with low jitter and low power consumption. As such, it is an ideal solution for cost constrained applications such as power sources, signal processors, and low power control systems.

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