copyright ? 2010 by silicon laboratories 10.20.10 control logic p0 p1 vddo r0 r1 clk0 clk1 r2 clk2 multisynth 0 multisynth 1 multisynth 2 vdd gnd 10-msop osc xa xb pll a pll b control logic p2 p3 p4 p0 p1 r0 r1 clk0 clk1 vddoa r2 r3 clk2 clk3 vddob r4 r5 clk4 clk5 vddoc r6 r7 clk6 clk7 vddod multisynth 0 multisynth 1 multisynth 2 multisynth 3 multisynth 4 multisynth 5 multisynth 6 multisynth 7 vdd gnd 20-qfn, 24-qsop osc xa xb pll a pll b si5350/51 factory-programmable any-frequency cmos clock generator description the si5350/51 are highly flexible, programmable clock generators that can be customized to generate up to eight independent non-integer-related frequencies. the device has eight cmos clock outputs offered in a space saving 4 mm x 4 mm 20-qfn and a 24-qsop package, or three clock outputs offered in a 10-msop package. each output has an independent multisynth? fractional divider that accepts a high-frequency reference from one of the device?s internal plls and accurately divides down the clock to generate unique, non-integer-related frequencies from 8 khz to 133 mhz. any combination of output frequencies can be generated by the device. all clocks are generated with 0 ppm frequency synthesis error, enabling the replacement of xos and pll-based clocks while simplifying design and minimizing cost. as an added feature, the si5350/51 features an integrated vcxo which eliminates the need for pullable crystals. the si5350 features configurable control pin options allowing the direct pin control of frequency select, output enable, spread spectrum enable and powerdown. each outputs supports 2.5 or 3.3 v operation, eliminating the need for external level translators in mixed-supply applications. features - generates any frequency on any output - 8 khz to 133 mhz - exact clock synthesis: 0 ppm error - similar frequency flexibility as 8 independent plls - accepts crystal or external reference clock - <100 ps period jitter for any configuration - glichless switching between output frequencies - integrated vcxo eliminates need for pullable ? crystal - si5350 (pin) and si5351 (i 2 c) versions - user-definable control pins: - frequency select, output enable, spread spectrum enable, powerdown - spread spectrum clock generation - ?0.1 to ?2.5% down, 0.1 to 1.5% center - factory and field-programmable versions - two week sample lead ti me for any custom clock - small size: 4 mm x 4 mm 20-qfn, 24-qsop and 10-msop - industrial temperature range: ?40 to +85 applications - hdtv, dvd/blu-ray, set-top box - audio/video equipment, gaming - printers, scanners, projectors - audio dac/codec - usb audio - residential gateways - networking/communication - servers, storage
copyright ? 2010 by silicon laboratories 10.20.10 silicon laboratories and silicon labs are trademarks of silicon laboratories inc. other products or brandnames mentioned her ein are trademarks or registered tr ademarks of their respective holders si5350/51 factory-programmable any-freq uency cmos clock generator example application?personal video recorder/blu-ray player product family matrix ethernet phy usb controller clk5 audio/ video dsp analog audio component video audio adc video adc y pb pr r l clk4 clk0 27 mhz xa xb clk1 clk3 clk2 si5350a hdd storage 74.25mhz 24.576mhz 27mhz hdmi i/f audio/ video dac amp 74.25mhz 48 mhz 25/125mhz y pb pr r l function control input(s) outputs/ pkg part number use free-running clock generator 1 pin 25, 27 mhz xtal 3 (10-msop) si5350a-a-gt field- programming 2 8 (24-qsop) si5350a-a-gu 8 (20-qfn) si5350a-a-gm i2c 3 (10-msop) si5351a-a-gt in-circuit configurable 8 (24-qsop) si5351a-a-gu 8 (20-qfn) si5351a-a-gm free-running clock generator+ vcxo 1 pin 25, 27 mhz xtal + analog control voltage 8 (24-qsop) si5350b-a-gu field- programming 2 8 (20-qfn) si5350b-a-gm 3 (10-msop) si5350b-a-gt i2c 8 (24-qsop) si5351b-a-gu in-circuit configurable 8 (20-qfn) si5351b-a-gm free-running and/or synchronous clock generator 1 pin 25, 27 mhz xtal 8 (24-qsop) si5350c-a-gu field- programming 2 8 (20-qfn) si5350c-a-gm 3 (10-msop) si5350c-a-gt i2c 8 (24-qsop) si5351c-a-gu in-circuit configurable 8 (20-qfn) SI5351C-A-GM note 1. to order a factory-customized si5350 (e.g. si 5350a-axxxxx-gt), use clockbuilder web-based utility www.silabs.com/clockbuilder. utility assigns unique part number (e.g. si5350a-a00123-gt) note 2. field programming supported using silicon labs development kit
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