W48C20

www.DataSheet4U.com W48C20 Audio Subsystem Clock Generator Features Two independent phase-locked loops Four independent output frequencies ±250 ps maximum cycle-to-cycle jitter 3 ns rise/fall time (20%-80% VDD). Options available for a wide range of applications Supports 3.3V and 5V operation Low power CMOS design available in: — 8-pin SOIC (Small Outline Integrated Circuit) Overview The W48C20 is a general-purpose device that features two phase-locked loops. Through the use of metal masks, the chip can be tailored to a wide variety of applications. The W48C20 has four clock outputs, each of which is maskable to a different frequency. Because the chip offers four outputs in eight pins, it is suited to applications that require multiple frequencies and have space constraints. Table 1. Product Selection Guide Mask -01A -08 -09 Pin 4 Pin 5 Pin 6 Pin 7 27.00 25.00 Application DVD Hard Disk Drives 16.9344 24.576 33.8688 14.318 Audio/Crystal 33.8688 18.432 16.9344 40.00 22.50 20.00 Functional Block Diagram VCC X1 XTAL OSC OUTPUT OUTPUT PLL 1 OUTPUT Crystal load capacitors as needed XTAL X2 PLL 2 OUTPUT GND Pin Configuration X1 VCC GND OUTPUT 1 2 3 4 8 7 6 5 X2 OUTPUT OUTPUT OUTPUT Cypress Semiconductor Corporation 3901 North First Street San Jose CA 95134 408-943-2600 December 20, 1999, rev. ** www.DataSheet4U.com W48C20 Pin Definitions Pin Name X1 VDD GND OUTPUT OUTPUT OUTPUT OUTPUT X2 Pin No. 1 2 3 4 5 6 7 8 Pin Type I P P O O O O I Pin D...