581G-01ILFT Renesas

DATASHEET ZERO DELAY GLITCH-FREE CLOCK MULTIPLEXER ICS581-01/02 Description Features The ICS581-01/02 are glitch free, Phase Locked Loop 16-pin TSSOP package (PLL) based clock multiplexers (mux) with zero delay from RoHS compliant packaging input to output. They each have four low skew outputs No short pulses or glitches on output which can be configured as a single output, three outputs, Operates from 6 to 200 MHz or four outputs. The ICS581-01 allows user control over the Low skew outputs mux switching, while the ICS581-02 has automatic User controlled (-01) or automatic, timed mux switch (-02) switching between the two clock inputs. Ideal for systems with back-up or redundant clocks The ICS581-01 and -02 are members of IDTs TM Zero delay (input to output) ClockBlocks family of clock generation, synchronization, 50% output duty cycle allows duty cycle correction and distribution devices. For a non-PLL based clock mux, TM see the ICS580-01. SpreadSmart technology works with spread spectrum parts Industrial temperature of ICS581-02 available Block Diagram ICS581-01 2 VDD INA 1 CLK1 0 INB CLK2 SELA Output PLL Divide FBIN CLK3 CLK4 2 S1:0 2 GND OE0 OE1 ICS581-02 VDD 2 DIV IN Transition /48 1 Detector /3 0 1 INA CLK1 0 INB CLK2 Output PLL Divide FBIN CLK3 CLK4 2 S1:0 2 GND OE0 OE1 IDT ZERO DELAY GLITCH-FREE CLOCK MULTIPLEXER 1 ICS581-01/02 REV M 110216ICS581-01/02 ZERO DELAY GLITCH-FREE CLOCK MULTIPLEXER ZDB ANDMULTIPLEXER Pin Assignment S0 1 16 SELA S0 1 16 DIV S1 2 15 VDD S1 2 15 VDD VDD 3 14 CLK1 VDD 3 14 CLK1 INA 4 13 CLK2 INA 4 13 CLK2 INB 5 12 CLK3 INB 5 12 CLK3 GND 6 11 CLK4 GND 6 11 CLK4 FBIN 7 10 GND FBIN 7 10 GND OE0 8 OE0 9 OE1 8 9 OE1 16 pin 4.40 mil body (0.65 mm pitch) TSSOP 16 pin 4.40 mil body (0.65 mm pitch) TSSOP Clock Decoding Timeout Selection SELA CLK1-4 DIV Nominal Timeout 0INB 0 3x period of INB 1INA 1 48x period of INB ICS581-01 only ICS581-02 only Frequency Range Select Tri-State and Power Down OE1 OE0 CLK1 CLK2-4 PLL S1 S0 Input Range (MHz) 00 ZZ Off 00 50 - 150 01 On Z On 01 19 - 75 10 ZOn On 10 6 - 19 11 On On On 11 150 - 200 ICS581-01/02 ICS581-01/02 Note: Z indicates that the output is in a high impedance state IDT ZERO DELAY GLITCH-FREE CLOCK MULTIPLEXER 2 ICS581-01/02 REV M 110216 ICS581-01 ICS581-02