ICS660GI

Video Processing Overview

The ICS660GI is a digital video clock source and PLL synthesizer manufactured by Renesas Electronics Corporation (formerly IDT). It provides clock generation for MPEG, NTSC, PAL, and HDTV applications. The device operates on a single 3.0V to 3.6V supply with a typical current of 25mA. It features low phase noise (-110 dBc at 10kHz offset) and short-term jitter of 100ps p-p. The unit supports crystal or clock inputs via X1/REFIN and X2 pins. Output frequencies are selected via four logic pins (S0-S3), enabling exact multiplication ratios such as 27MHz to 74.25MHz. It includes power-down control and a reference output.

Video Processing Feature Summary

• Generates precise clock rates for digital video standards including MPEG, NTSC, PAL, and HDTV using advanced PLL technology.
• Offers selectable input modes for either external crystals or direct clock signals through dedicated selection pins.
• Provides configurable output frequencies via hardware logic inputs, supporting exact integer multiplication ratios.
• Includes power-down functionality to reduce standby current consumption and a reference clock output pin.

Video Processing Applications

• Clock generation for MPEG encoding and decoding equipment
• Timing synchronization for NTSC and PAL video systems
• Clock distribution in High-Definition Television (HDTV) architectures

Video Processing Procurement Notes

Verify the specific ordering suffix to confirm package type and environmental compliance. The 'LF' suffix indicates lead-free packaging compliant with RoHS standards. Standard parts may be non-green; check the manufacturer's Product Discontinuation Notice (PDN U-09-01) regarding end-of-life status for non-compliant variants. Confirm availability of tape-and-reel versus tube shipping options based on production requirements.

Video Processing Selection Notes

Select the ICS660GI when designing digital video circuits requiring stable clock synthesis from 27MHz sources. Ensure the application utilizes a 3.3V nominal supply voltage within the 3.0V to 3.6V operating range. Verify that the required output frequency matches one of the predefined logic table configurations. Consider PCB layout constraints, specifically the need for series termination resistors and decoupling capacitors near power pins to maintain signal integrity.

Video Processing Part Context

This component belongs to the IDT/ICS family of digital video clock sources. It was originally manufactured by Integrated Device Technology before corporate acquisition. The ICS660 serves as a specialized clock generator distinct from audio-focused models like the ICS661. It is designed for commercial-grade environments operating between -40°C and +85°C.

Video Processing Replacement Considerations

Consult official documentation for cross-reference data. No public substitute part numbers are confirmed in the provided datasheet.

Video Processing FAQ

How is the output frequency determined?

The output frequency is determined by the logic levels applied to the S0, S1, S2, and S3 input pins. These pins select specific multiplication ratios defined in the device's output frequency selection table.

What is the recommended series termination value?

For a 50Ω trace impedance, a 33Ω resistor should be placed in series with the clock output line, positioned as close to the CLK pin as possible.

Can the device operate with both crystal and clock inputs simultaneously?

No. The SELIN pin selects the input mode. A low level enables the clock input at X1/REFIN, while a high level enables the crystal oscillator connected to X1 and X2.