MK1714-02 Datasheet | Integrated Circuit Systems

Description The MK1714-02 is a low cost, high performance clock synthesizer with selectable multipliers and spread amounts (percentages), designed to generate high frequency clocks with low EMI. Using analog/digital Phase-Locked Loop (PLL) techniques, the device accepts an inexpensive, fundamental mode, parallel resonant crystal, or a clock input to produce a spread, or dithered, output, thereby reducing the frequency amplitude peaks by several d B. The OE pin puts both outputs into a high impedance state for board level testing. The PD# pin powers down the entire chip, and the outputs are held low. Features - Packaged in 20 pin tiny SSOP (QSOP) - Operating VDD of 3.3 V or 5 V - Multiplier modes of x1, x2, x3, x4, x5, and x6 - Inexpensive 10-25 MHz crystal, or clock input - OE pin tri-states the outputs for testing - Power down pin stops the outputs low - Selectable frequency spread - Spread can be turned on or off - Duty cycle of 40/60 - Advanced, low power CMOS process - Industrial temperature range available Block Diagram VDD 5 PLL Clock Multiplier and Spread Spectrum Circuitry X1 S4:0 PD Low EMI Enable Input crystal or clock Output Buffer Clock Out Crystal Oscillator X2 Output Buffer XSEL OE (both outputs) 1 Revision 120400 Integrated Circuit Systems, Inc. - 525 Race Street - San Jose - CA- 95126- (408) 295-9800tel - .icst. MDS 1714-02 C MK1714-02 Spread Spectrum Multiplier Clock Pin Assignment X2 X1/ICLK VDD VDD S4 S3 GND GND S2 CLK 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 REF OE PD GND S0 NC S1 GND LEE XSEL 20 pin.150 mil SSOP (QSOP) Pin Descriptions Pin # 1 2 3 4 5 6 8 9 10 11 12...