Product Details
●The AD9522-31 provides a multioutput clock distribution function with subpicosecond jitter performance, along with an on-chip PLL and VCO. The on-chip VCO tunes from 1.72 GHz to 2.25 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 AD9520-3 is an equivalent part to the AD9522-3 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 AD9522-3 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 1.72 GHz to 2.25 GHz
● Supports external 3.3 V/5 V VCO/VCXO
●to 2.4 GHz
● 1 differential or 2 single-ended
●reference inputs
●|
● 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
●---|---
