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1526 - Block Diagram
1526 - Pinout


Video Clock Synthesizer

The 1526 is a low-cost, high-performance frequency generator. It is suited to general purpose phase controlled clock synthesis as well as line-locked and genlocked high-resolution video applications. Using IDT’s advanced low-voltage CMOS mixed-mode technology, the 1526 is an effective clock synthesizer that supports video projectors and displays at resolutions from VGA to beyond XGA. The 1526 offers single-ended clock outputs to 110 MHz. The HSYNC_out, and VSYNC_out pins provide the regenerated versions of the HSYNC and VSYNC inputs synchronous to the CLK output. The advanced PLL uses its internal programmable feedback divider. The device is programmed by a standard I2C-bus™ serial interface and is available in a TSSOP16 package.


  • Lead-free packaging (Pb-free)
  • Low jitter (typical 27 ps short term jitter)
  • Wide input frequency range
  • 8 kHz to 100 MHz
  • LVCMOS single-ended clock outputs
  • Up to 110 MHz
  • Uses 3.3 V power supply
  • 5 Volt tolerant Inputs (HSYNCVSYNC)
  • Coast (ignore HSYNC) capability via VSYNC pin
  • Industry standard I2C-bus programming interface
  • PLL Lock detection via I2C or LOCK output pin
  • 16-pin TSSOP package

Product Specification

Outputs (#)Output TypeOutput Freq Range (MHz)Input Freq (MHz)Inputs (#)Input TypeOutput Banks (#)Core Voltage (V)Output Voltage (V)
3LVCMOS2.500000 - 110.0000000.020000 - 100.000000, 0.008000 - 10.000000, 0.000030 - 0.0001203LVCMOS33.33.3

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
1526GILFObsoletePGG16TSSOP16IYesTubeCheck Availability
1526GILFTObsoletePGG16TSSOP16IYesReelCheck Availability
1526GLFObsoletePGG16TSSOP16CYesTubeCheck Availability
1526GLFTObsoletePGG16TSSOP16CYesReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
ICS1526 Datasheet Datasheet PDF 215 KB May 14, 2010
Apps Notes & White Papers
ICS1526 Schematics Application Note PDF 32 KB Sep 20, 2006
PDN# : CQ-14-06R1 Revised Product Discontinuance Notice Product Discontinuation Notice PDF 407 KB Sep 8, 2014
PDN# : CQ-14-06 MANUFACTURING DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 192 KB Sep 4, 2014
PCN# : TB1403-01 Changed in Carrier Tape, Plastic Reel and Quantity per Reel on TSSOP-14, TSSOP-16 Product Change Notice PDF 663 KB Apr 8, 2014
show all (7)
PCN# : A1309-01 Changed of Traceability Mark Format Product Change Notice PDF 439 KB Oct 11, 2013
PCN# : A1208-01R1 Gold to Copper Wire Product Change Notice PDF 254 KB Dec 21, 2012
PCN# : A1208-06 Changed of Assembly Location and Crystal Product Change Notice PDF 1.06 MB Nov 18, 2012
PCN# : A1204-01R1 Revised Notification to Remove Selective Devices from TSSOP-16 Product Change Notice PDF 332 KB Oct 2, 2012
ICS1526 Register Tools Misc ZIP 3 KB Sep 20, 2006

Software & Tools

Title Type Format File Size Datesort icon
1526 IBIS Model Model - IBIS ZIP 7 KB Jul 23, 2013