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1527 - Block Diagram
1527 - Pinout


Video Clock Synthesizer

The 1527 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 ICS’s advanced low-voltage CMOS mixed-mode technology, the 1527 is an effective clock synthesizer that supports video projectors and displays at resolutions from VGA to beyond XGA. The 1527 offers single-ended clock outputs to 60 or 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 either its internal programmable feedback divider or an external 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)
  • LVCMOS single-ended clock outputs
  • 60/110 MHz speed grades available
  • 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 - 110.0000000.008000 - 10.000000, 0.000030 - 0.0001202LVCMOS33.33.3

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
1527G-110LFObsoletePGG16TSSOP16CYesTubeCheck Availability
1527G-110LFTObsoletePGG16TSSOP16CYesReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
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
PCN# : A1309-01 Changed of Traceability Mark Format Product Change Notice PDF 439 KB Oct 11, 2013
PDN# : U-13-06R1 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 69 KB May 26, 2013
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PDN# : U-13-06 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 69 KB Apr 4, 2013
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 24, 2013
PCN# : A1204-01R1 Revised Notification to Remove Selective Devices from TSSOP-16 Product Change Notice PDF 332 KB Oct 2, 2012