570MLF

Clock Generators, PLLs, Frequency Synthesizers Overview

The ICS570MLF is a high-performance Zero Delay Buffer (ZDB) and clock multiplier from the ClockBlocks family, manufactured by Renesas Electronics. It integrates proprietary analog/digital Phase Locked Loop (PLL) techniques to synchronize outputs with zero apparent delay. The device features two CMOS outputs: CLK and a low-skew divide-by-two output (CLK/2). Designed for commercial applications, it operates at a supply voltage of 3.3 V (±5%) with a maximum output frequency of 170 MHz. Key electrical parameters include an input-to-output skew of 300 ps maximum for frequencies above 60 MHz and a typical operating current of 16 mA.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Zero Delay Buffer functionality aligns rising edges of input and output clocks.
• Configurable multipliers ranging from 0.5x to 32x via S0/S1 pins.
• Low input-to-output skew of 300 ps max (>60 MHz outputs).
• Passes spread spectrum clock modulation and recovers degraded duty cycles.

Clock Generators, PLLs, Frequency Synthesizers Applications

• Synchronizing outputs in personal computer systems.
• Data communications equipment timing.
• Graphics and video signal processing.

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify component authenticity through authorized channels as the part may be subject to discontinuation or obsolescence notices. Confirm RoHS compliance status and lead-free packaging specifications against current manufacturer documentation before procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the ICS570MLF for designs requiring a 3.3 V supply and commercial temperature range (0°C to +70°C). Ensure feedback path configuration matches desired multiplier settings using the decoding table. Unused outputs should remain unconnected to optimize jitter performance on active clocks.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The ICS570MLF belongs to the ICS570 series, which includes variants for 5V operation (A version) and industrial temperatures (I suffix). The 'LF' suffix indicates a lead-free package compliant with RoHS standards. This component serves as a pin-for-pin replacement and upgrade for the legacy ICS570M.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The ICS570MLF is functionally equivalent to the AV9170, though not a pin-for-pin replacement. It offers a direct pin-compatible upgrade path from the ICS570M variant.

Clock Generators, PLLs, Frequency Synthesizers FAQ

How is the zero delay feature implemented?

The rising edge of the input clock aligns with the rising edges of both output clocks, creating the appearance of no delay through the device.

What is the recommended feedback source for optimal synchronization?

IDT recommends using CLK/2 feedback whenever possible to synchronize the rising edges of all three clocks (ICLK, CLK, and CLK/2).

Can the device handle spread spectrum clocking?

Yes, the ICS570 passes spread spectrum clock modulation without issue.