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ICS477R-05LFT Datasheet(PDF) 1 Page - Integrated Circuit Systems |
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ICS477R-05LFT Datasheet(HTML) 1 Page - Integrated Circuit Systems |
1 / 7 page ICS477-05 MDS 477-05 H 1 Revision 062404 Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com Quad PLL with VCXO for HDTV Description The ICS477-05 generates five high-quality, high-frequency clock outputs including two reference outputs from a low frequency pullable crystal. It is designed to replace crystals and crystal oscillators in most electronic systems. Using Phase-Locked-Loop (PLL) techniques, the device runs from a fundamental mode, pullable crystal. It can replace multiple crystals and oscillators, saving board space and cost. Features • Packaged in 28-pin SSOP (QSOP) • Available in Pb-free packaging • Replaces a VCXO plus multiple crystals and oscillators • On-chip patented VCXO pull range 200 ppm (minimum) • Duty cycle of 45/55 • Operating voltage of 3.3V • Advanced, low power, CMOS process • Input crystal frequency of 27 MHz • Five output clocks • Industrial temperature range available Block Diagram X1 X2 PLLA PLLC PLLB Voltage Controlled Crystal Oscillator Divide Logic and Output Enable Control 27 MHz Pullable Crystal External capacitors may be required PLLD VDD GND PDTS VIN 10 27M 54M 74.175M 54.054M 6 2 |
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