AD9576BCPZ Clock Distribution Devices by Analog Devices

Status: Production
Series: AD9576
RoHS: Compliant
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The AD9576 provides a multiple output clock generator function comprising two dedicated phase-locked loop (PLL) cores with flexible frequency translation capability, optimized to serve as a robust source of asynchronous clocks for an entire system, providing extended operating life within frequency tolerance through monitoring of and automatic switchover between redundant crystal (XTAL) inputs with minimized switching, induced transients. The fractional-N PLL design is based on the Analog Devices, Inc., proven portfolio of high performance, low jitter frequency synthesizers to maximize network performance, whereas the integer-N PLL provides general-purpose clocks for use as CPU and field-programmable gate array (FPGA) reference clocks.The AD9576 uses pin strapping to select among a multitude of power-on ready configurations for its 11 output clocks, which require only the connection of external pull-up or pull-down resistors to the appropriate pin program reader pins (PPRx). These pins provide control of the internal dividers for establishing the desired frequency translations, clock output functionality, and input reference functionality. These parameters can also be manually configured through a serial port interface (SPI).The AD9576 is packaged in a 64-lead, 9 mm × 9 mm LFCSP, requiring only a single 2.5 V or 3.3 V supply. The operating temperature range is −40°C to +85°C.Each OUTx output is differential and contains two pins: OUTx and OUTx. For simplicity, the term OUTx refers to the functional output block containing these two pins..

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Features

Single, low phase noise, fully integrated VCO/fractional-N PLL core
VCO range: 2375 MHz to 2725 MHz 
Integrated loop filter (requires a single external capacitor)
2 differential, XTAL, or single-ended reference inputs
Reference monitoring capability
Automatic redundant XTAL switchover
Minimal transient, smooth switching
Typical RMS jitter
<0.3 ps (12 kHz to 20 MHz), integer-N translations
<0.5 ps (12 kHz to 20 MHz), fractional-N translations
Input frequency
8 kHz, 1.544 MHz, 2.048 MHz, and 10 MHz to 325 MHz
Preset frequency translations via pin strapping (PPRx)
Using a 25 MHz input reference
24.576 MHz, 25 MHz, 33.33 MHz, 50 MHz, 70.656 MHz, 100 MHz, 125 MHz, 148.5 MHz, 156.25 MHz, 161.1328 MHz, 312.5 MHz, 322.2656 MHz, 625 MHz, or 644.5313 MHz
Using a 19.44 MHz input reference
50 MHz, 100 MHz, 125 MHz, 156.25 MHz, 161.1328 MHz, or 644.5313 MHz
Using a 30.72 MHz input reference
25 MHz, 50 MHz, 100 MHz, 125 MHz, or 156.25 MHz
Single, general-purpose, fully integrated VCO/integer-N PLL core
VCO range: 750 MHz to 825 MHz
Integrated loop filter
Independent, duplicate reference input or operation from the fractional-N PLL active reference input
Input frequency: 25 MHz
Preset frequency translations via pin strapping (PPRx)
25 MHz, 33.33 MHz, 50 MHz, 66.67 MHz, 100 MHz, 133.33 MHz, 200 MHz, or 400 MHz
Up to 3 copies of reference clock output
11 pairs of configurable differential outputs
Output drive formats
3 outputs: HSTL, LVDS, HCSL, 1.8 V CMOS, 2.5 V/3.3 V CMOS
8 outputs: HSTL, LVDS, or 1.8 V CMOS
2.5 V or 3.3 V single-supply operation

Alternative Descriptions

Dual channel asynchronous cloc | Analog Devices
Clock Generator, 1.25Ghz, -40 To 85Deg C | Newark Electronics
CLOCK GENERATOR, 1.25GHZ, -40 TO 85DEG C | element14
CLOCK MODULE | Richardson RFPD


Frequently Asked Questions

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Additional datasheets, footprints and schematics for AD9576BCPZ are listed on our Part Details page. You can also find images and similar parts to AD9576BCPZ on this page.

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What category does AD9576BCPZ fall under?

The AD9576BCPZ is listed under Clock Distribution Devices.

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Is the AD9576BCPZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and Richardson RFPD have stock available or on a lead time for AD9576BCPZ.

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