AD9522 Datasheet PDF

●Product Details

●The AD9522-41 provides a multioutput clock distribution function with subpicosecond jitter performance, along with an on-chip PLL and VCO. The on-chip VCO tunes from 1.4 GHz to 1.8 GHz. An external 3.3 V/5 V VCO/VCXO of up to 2.4 GHz can also be used.

●The AD9522 serial interface supports both SPI and I2C® ports. An in-package EEPROM can be programmed through the serial interface and store user-defined register settings for power-up and chip reset.

●The AD9522 features 12 LVDS outputs in four groups. Any of the 800 MHz LVDS outputs can be reconfigured as two 250 MHz CMOS outputs.

●Each group of outputs has a divider that allows both the divide ratio (from 1 to 32) and the phase (coarse delay) to be set.

●The AD9522 is available in a 64-lead LFCSP and can be operated from a single 3.3 V supply. The external VCO can have an operating voltage up to 5.5 V.

●The AD9522 is specified for operation over the standard industrial range of −40°C to +85°C.

●The AD9520-4 is an equivalent part to the AD9522-4 featuring LVPECL / CMOS drivers instead of LVDS / CMOS drivers.

●1The AD9522 is used throughout this data sheet to refer to all the members of the AD9522 family. However, when AD9522-4 is used, it is referring to that specific member of the AD9522 family.

●Applications

● Low jitter, low phase noise clock distribution

● Clock generation and translation for SONET, 10Ge, 10G FC, and other 10 Gbps protocols

● Forward error correction (G.710)

● Clocking high speed ADCs, DACs, DDSs, DDCs, DUCs, MxFEs

● High performance wireless transceivers

● ATE and high performance instrumentation

● Broadband infrastructures

●Data Sheet, Rev. 0, 10/08

●### Features and Benefits

● Low phase noise, phase-locked loop (PLL)

● On-chip VCO tunes from 1.4 GHz to 1.8 GHz

● Supports external 3.3 V/5 V VCO/VCXO to 2.4 GHz

● 1 differential or 2 single-ended reference inputs

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● Accepts CMOS, LVPECL, or LVDS references to 250 MHz

● Accepts 16.62 MHz to 33.3 MHz crystal for reference input

● Optional reference clock doubler

● See Data Sheet for Additional Information

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