ICS661

DATASHEET PRECISION AUDIO CLOCK SOURCE Description www.datasheet4u.com ICS661 Features Packaged in 16-pin TSSOP Available in Pb (lead) fere package Clock or crystal input Low phase noise Low jitter Exact (0 ppm) multiplication ratios Reference clock output available Support for 256, 384, 512, and 768 times sampling rate The ICS661 provides synchronous clock generation for audio sampling clock rates derived from an MPEG stream, or can be used as a standalone clock source with a 27 MHz crystal. The device uses the latest PLL technology to provide excellent phase noise and long term jitter performance for superior synchronization and S/N ratio. Please contact IDT if you have a requirement for an input and output frequency not included here - we can rapidly modify this product to meet special requirements. Block Diagram VDD (P2) VDD (P3) VDDO VDDR X2 Crystal Oscillator REF X1/REFIN SELIN S3:0 PLL Clock Synthesis 4 CLK GND (P13) GND (P6) GND (P5) IDT™ / ICS™ PRECISION AUDIO CLOCK SOURCE 1 ICS661 REV D 111804 ICS661 PRECISION AUDIO CLOCK SOURCE CLOCK SYNTHESIZER Pin Assignment X1/REFIN www.datasheet4u.com VDD Output Clock Selection Table 16 15 14 13 12 11 10 9 X2 REF VDDR GND SELIN VDDO S1 CLK 1 2 3 4 5 6 7 8 S3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 S2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 S1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 S0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Input Frequency (MHz) 27 27 27 27 27 27 27 27 27 27 27 27 27 27 27 27 Output Frequency (MH...