PDF ICS661 Data sheet ( Hoja de datos )

Número de pieza	ICS661
Descripción	Precision Audio Clock Source
Fabricantes	Integrated Circuit Systems
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Hay una vista previa y un enlace de descarga de ICS661 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas
No Preview Available ! ICS661 Precision Audio Clock Source Description The ICS661 provides synchronous clock generation for www.daatausdhieoets4au.mcopmling 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 ICS if you have a requirement for an input and output frequency not included here - we can rapidly modify this product to meet special requirements. 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 Block Diagram X2 X1/REFIN SELIN S3:0 4 VDD (P2) Crystal Oscillator VDD (P3) VDDO VDDR REF GND (P13) PLL Clock Synthesis GND (P6) GND (P5) CLK MDS 661 D 1 Revision 111804 Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com 1 page ICS661 Precision Audio Clock Source AC Electrical Characteristics Unless stated otherwise, VDD = 3.3 V ±10%, Ambient Temperature -40 to +85°C Parameter Symbol Conditions Min. Typ. www.datasheet4u.cCormystal Frequency Output Clock Rise Time Output Clock Fall Time Output Duty Cycle Jitter, Short term 27 tOR 20% to 80%, 15 pF load tOF 80% to 20%, 15 pF load tOD At VDD/2, 15 pF load 45 49 to 51 Reference clock off 175 Jitter, Short term Reference clock on 175 Jitter, Long term Reference clock off; 10 us delay 300 Jitter, Long term Reference clock on; 10 us delay 300 Single Sideband Phase Noise Reference clock off; 10 kHz offset -110 Single Sideband Phase Noise Reference clock on; 10 kHz offset -110 Actual Mean Frequency Error versus Target 0 Max. 28 1.5 1.5 55 Units MHz ns ns % ps p-p ps p-p ps p-p ps p-p dBc dBc ppm Thermal Characteristics Parameter Symbol Conditions Thermal Resistance Junction to Ambient θJA Still air θJA 1 m/s air flow θJA 3 m/s air flow Thermal Resistance Junction to Case θJC Min. Typ. 78 70 68 37 Max. Units °C/W °C/W °C/W °C/W MDS 661 D 5 Revision 111804 Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com 5 Page

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