ICD2051

1I CD20 51 fax id: 3512 ICD2051 Dual Programmable Clock Generator Features Two independent clock outputs ranging from 320 kHz to 100 MHz Individually programmable PLLs use 22-bit serial word Low-skew ÷1,÷2, and ÷4 CLKA outputs Phase-locked loop oscillator input derived from external low-frequency reference clock (1 MHz - 25 MHz) or external crystal (2 MHz - 24 MHz) Sophisticated internal loop-filter requires no external www.DataSheet4U.com components or manufacturing tweaks as commonly required with external filters Three-state control disables outputs for test purposes (optional) 5V operation Low-power, high-speed CMOS technology Available in 16-pin SOIC package Functional Description The ICD2051 Programmable Clock Generator offers two fully user-programmable phase-locked loops in a single package. The outputs may be changed “on the fly” to any desired frequency value between 320 kHz and 100 MHz. The ICD2051 is ideally suited for any design where one or more multiple or varying frequencies are required, thus replacing more expensive metal can oscillators. The capability to dynamically change the output frequency adds a whole new degree of freedom for the electrical engineer. Some examples of the uses for this device include: laptop computers, in which slowing the speed of operation can mean less power consumption or speeding it up can mean faster operation; graphics board dot clocks to allow dynamic synchronization with different brands of monitors or d...