ICS280 Datasheet | Renesas

Description The ICS280 field programmable spread spectrum clock synthesizer generates up to four high-quality, high-frequency clock outputs including multiple reference clocks from a low-frequency crystal input. It is designed to replace crystals, crystal oscillators and stand alone spread spectrum devices in most electronic systems. Using IDT’s Versa Clock TM software to configure PLLs and outputs, the ICS280 contains a One-Time Programmable (OTP) ROM for field programmability. Programming features include input/output frequencies, spread spectrum amount and eight selectable configuration registers. Using Phase-Locked Loop (PLL) techniques, the device runs from a standard fundamental mode, inexpensive crystal, or clock. It can replace multiple crystals and oscillators, saving board space and cost. The ICS280 is also available in factory programmed custom versions for high-volume applications. Features - Packaged as 16-pin TSSOP - Pb-free, Ro HS pliant - Eight addressable registers - Replaces multiple crystals and oscillators - Output frequencies up to 200 MHz at 3.3 V - Configurable Spread Spectrum Modulation - Input crystal frequency of 5 to 27 MHz - Input clock frequency of 3 to 166 MHz - Up to four reference outputs - Operating voltages of 3.3 V - Controllable output drive levels - Advanced, low-power CMOS process Block Diagram 3 S2:S0 OTP ROM with PLL Values Crystal or Clock Input X1/ICLK X2 Crystal Oscillator External capacitors are required with a crystal input. VDD 3 PLL1 with Spread Spectrum PLL2 PLL3 Divide Logic and Output Enable Control GND 3 PDTS CLK1 CLK2 CLK3 CLK4 IDT® TRIPLE PLL FIELD PROG. SPREAD SPECTRUM CLOCK SYNTHESIZER REV G 030212 ICS280 TRIPLE PLL FIELD PROG. SPREAD SPECTRUM CLOCK SYNTHESIZER EPROM CLOCK SYNTHESIZER Pin Assignment GND 1 S0 2 S1...