ICS3726-02

www.DataSheet4U.com PRELIMINARY INFORMATION ICS3726-02 HIGH PERFORMANCE VCXO Description The ICS3726-02 is a low cost, low-jitter, high-performance 3.3 volt VCXO designed to replace expensive discrete VCXOs modules. The ICS3726-02 offers a wider operating frequency range and improved power supply noise rejection. The on-chip Voltage Controlled Crystal Oscillator accepts a 0 to 3.3 V input voltage to cause the output clocks to vary by ±200 ppm. Using ICS’ patented VCXO techniques, the device uses an inexpensive external pullable crystal in the range of 20 to 52 MHz to produce a VCXO output clock at that same frequency. This part is ideal for Set-Top Box, multimedia clock synthesizers and ADSL/VDSL applications. The frequency of the on-chip VCXO is adjusted by an external control voltage input into pin VIN. Because VIN is a high-impedance input, it can be driven directly from an PWM RC integrator circuit. Frequency output increases with VIN voltage input. The usable range of VIN is 0 to VDD. Features Packaged in 8-pin SOIC Operational frequency range of 20 MHz to 52 MHz Uses an inexpensive external crystal On-chip patented VCXO with pull range of 400 ppm VCXO tuning voltage of 0 to VDD Output Enable control Operating voltage of 3.3 V 12 mA output drive capability at TTL levels Works with surface mount crystal with CL=10 pF Advanced, low-power, sub-micron CMOS process Available in Pb (lead) free package Block Diagram VDD VIN X1 20 to 52 MHz Pullable C...