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Renesas’ Timing product portfolio has been acquired by SiTime.

Datasheets, documentation, and sample orders remain available on Renesas.com through late 2026. For new designs, purchasing, support, and product inquiries, visit SiTime.com or send an email to SalesClocks@sitime.com. Full transition to SiTime is expected by late 2026.

663

Obsolete

PLL Building Block

Features

  • Packaged in 8-pin SOIC (Pb free)
  • Output clock range 1 MHz to 100 MHz (3.3 V), 1 MHz to 120 MHz (5 V)
  • External PLL loop filter enables configuration for a wide range of input frequencies
  • Ability to accept an input clock in the kHz range (video HSYNCH, for example)
  • 25 mA output drive capability at TTL levels
  • Lower power CMOS process
  • +3.3 V ±5% or +5 V ±10% operating voltage
  • Used along with the IDT674-01, forms a complete PLL circuit
  • Phase detector and VCO blocks can be used independently for other PLL configurations
  • Industrial temperature version available
  • For better jitter performance, use the MK1575
Find Other Products in Clock Generation

Description

The IDT663 is a low cost Phase-Locked Loop (PLL) designed for clock synthesis and synchronization. Included on the chip are the phase detector, charge pump, Voltage Controlled Oscillator (VCO) and an output buffer. Through the use of external reference and VCO dividers (implemented with the IDT674-01, for example), the user can easily configure the device to lock to a wide variety of input frequencies. The phase detector and VCO functions of the device can also be used independently. This enables the configuration of other PLL circuits. For example, the IDT663 phase detector can be used to control a VCXO circuit such as the MK3754. For applications requiring Power Down or Output Enable features, please refer to the IDT673-01.

Part NumberStatusSamplesStockPackageLead Count (#)Temp. GradePb (Lead) FreeCarrier Type
663MILFObsoleteN/AOut of StockSOIC8#IYesTube
663MILFTObsoleteN/AOut of StockSOIC8#IYesReel
663MLFObsoleteN/AOut of StockSOIC8#CYesTube
663MLFTObsoleteN/AOut of StockSOIC8#CYesReel
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    Recommended Documents (1)

  1. Datasheet
    663 Datasheet
    RECOMMENDED
    PDF 277 KB 7WDXRDKU4E7E-5-33570 Nov 05, 2009

    Datasheets (1)

  1. Datasheet
    663 Datasheet
    RECOMMENDED
    PDF 277 KB 7WDXRDKU4E7E-5-33570 Nov 05, 2009

    Application Notes & White Papers (18)

  1. Application Note
    AN-805 Recommended Ferrite Beads
    PDF 91 KB R31AN0042EU0102 Rev.1.02 Aug 11, 2025
  2. Application Note
    Termination Options for High-Speed LVCMOS Driver Clock Drivers
    PDF 187 KB R31AN0065EU0101 Rev.1.01 Nov 14, 2023
  3. Application Note
    AN-827 Application Relevance of Clock Jitter
    PDF 1.99 MB 7WDXRDKU4E7E-5-57242 Mar 01, 2022
  4. Application Note
    AN-828 Termination - LVPECL
    PDF 322 KB 7WDXRDKU4E7E-5-57262 Jul 06, 2016
  5. Application Note
    AN-831 The Crystal Load curve
    PDF 395 KB 7WDXRDKU4E7E-5-57276 Sep 23, 2014
    6. View More

    Product Notices (PCN, EOL, etc) (6)

  1. End Of Life Notice
    PDN# : U-13-05R2 PRODUCT DISCONTINUANCE NOTICE (REVISED)
    PDF 161 KB 7WDXRDKU4E7E-5-56346 Oct 29, 2013
  2. Product Change Notice
    PCN# : A1309-01 Changed of Traceability Mark Format
    PDF 439 KB 7WDXRDKU4E7E-5-56251 Oct 11, 2013
  3. Product Change Notice
    PCN# : A1305-01 Gold Wire to Copper Wire
    PDF 148 KB 7WDXRDKU4E7E-5-55894 Jul 29, 2013
  4. End Of Life Notice
    PDN# : U-13-05R1 PRODUCT DISCONTINUANCE NOTICE
    PDF 161 KB 7WDXRDKU4E7E-5-55879 Jul 25, 2013
  5. End Of Life Notice
    PDN# : U-13-05 PRODUCT DISCONTINUANCE NOTICE
    PDF 159 KB 7WDXRDKU4E7E-5-55231 Apr 10, 2013
    6. View More
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