MAX9491

19-3942; Rev 0; 1/06 www.DataSheet4U.com Factory-Programmable, Single PLL Clock Generator General Description The MAX9491 multipurpose clock generator is ideal for communication applications. It offers a factory-programmable PLL output that can be set to almost any frequency, ranging from 4MHz to 200MHz. The MAX9491 uses a one-time-programmable (OTP) ROM to program the PLL output. The MAX9491 also features an integrated voltage-controlled crystal oscillator (VCXO) that is tuned by a DC voltage. The VCXO output is used as the PLL input. The VCXO has a wide ±200ppm (typ) tuning range. The OTP on the MAX9491 is factory preset, based upon the customer request. Contact the factory for samples with preferred frequencies. The device operates from a 3.3V supply and is specified over the -40°C to +85°C extended temperature range. The MAX9491 is available in 14-pin TSSOP and 20-pin TQFN (5mm x 5mm) packages. Features ♦ 5MHz to 35MHz for Crystal-Clock Reference ♦ 5MHz to 50MHz for a Driver Clock Reference ♦ One Fractional-N PLL with Buffered Output ♦ 4MHz to 200MHz Output Frequency Range ♦ Low RMS Jitter PLL (< 13ps) at 197 MHz ♦ Integrated VCXO with ±200ppm Tuning Range ♦ Available in 14-Pin TSSOP and 20-Pin TQFN Packages ♦ +3.3V Supply ♦ -40°C to +85°C Temperature Range MAX9491 Applications Telecommunications Data Networking Systems Home Entertainment Centers SOHO PART MAX9491ETP MAX9491EUD* Ordering Information TEMP RANGE -40°C to +85°C -40°C to +85°C PINPACKAGE 20 TQFN-EP** 14...