AD9520-0:  12 LVPECL/24 CMOS Output Clock Generator with Integrated 2.8 GHz VCO

The AD9520-01 provides a multioutput clock distribution function with subpicosecond jitter performance, along with an on-chip PLL and VCO. The on-chip VCO tunes from 2.53 GHz to 2.95 GHz. ...More

AD9520-0:  12 LVPECL/24 CMOS Output Clock Generator with Integrated 2.8 GHz VCO

Product Description

The AD9520-01 provides a multioutput clock distribution function with subpicosecond jitter performance, along with an on-chip PLL and VCO. The on-chip VCO tunes from 2.53 GHz to 2.95 GHz. An external 3.3 V/5 V VCO/VCXO of up to 2.4 GHz can also be used.

The AD9520 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 AD9520 features 12 LVPECL outputs in four groups. Any of the 1.6 GHz LVPECL 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 AD9520 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. A separate output driver power supply can be from 2.375 V to 3.465 V.

The AD9520 is specified for operation over the standard industrial range of −40°C to +85°C.

1The AD9520 is used throughout this data sheet to refer to all the members of the AD9520 family. However, when AD9520-0 is used, it is referring to that specific member of the AD9520 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

Features

  • Low phase noise, phase-locked loop (PLL)
  • On-chip VCO tunes from 2.53 GHz to 2.95 GHz
  • Auto and manual reference switchover/holdover modes
  • Zero delay operation optional
  • Twelve 1.6 GHz LVPECL/CMOS outputs divided into four groups
  • Each group of 4 has a 1 to 32 divider with phase delay
  • SPI- and I2C-compatible control port
  • Nonvolatile EEPROM stores configuration settings

Diagrams

AD9520-0 Diagram
Functional Block Diagram for AD9520-0

Specifications

Primary Clock Function Generation
+Supply Voltage (V) 3.3V
Max f-out (MHz) 1600MHz
I/O Interface Serial
Output Logic CMOS,LVDS,LVPECL

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Part# Product Description +Supply Voltage (V) # of Inputs # of Outputs On-Chip VCO or DCO Max f-out (MHz) Output Logic Random Jitter (ps-RMS) Package Price* (1000-4999)
AD9510 Multi-Output Clock Generator 3.3 1 8 No 1200 CMOS, LVDS, LVPECL 0.225 64-LFCSP $12.09
AD9511 Multi-Output Clock Generator 3.3 1 5 No 1200 CMOS, LVDS, LVPECL 0.225 48-LFCSP $10.07
AD9512 Clock Divider 3.3 1 5 No 1200 CMOS, LVDS, LVPECL 0.225 48-LFCSP $9.06
AD9513 Clock Divider 3.3 1 3 No 800 CMOS, LVDS 0.3 32-LFCSP $6.02
AD9514 Clock Divider 3.3 1 3 No 1600 CMOS, LVDS, LVPECL 0.225 32-LFCSP $6.02
AD9515 Clock Divider 3.3 1 2 No 1600 CMOS, LVDS, LVPECL 0.225 32-LFCSP $4.81
AD9516-0 Multi-Output Clock Generator 3.3 2 14 Yes 2950 CMOS, LVDS, LVPECL 0.4 64-LFCSP $12.65
AD9516-1 Multi-Output Clock Generator 3.3 2 14 Yes 2650 CMOS, LVDS, LVPECL 0.4 64-LFCSP $12.65
AD9516-2 Multi-Output Clock Generator 3.3 2 14 Yes 2335 CMOS, LVDS, LVPECL 0.4 64-LFCSP $12.65
AD9516-3 Multi-Output Clock Generator 3.3 2 14 Yes 2250 CMOS, LVDS, LVPECL 0.4 64-LFCSP $12.65
AD9516-4 Multi-Output Clock Generator 3.3 2 14 Yes 1800 CMOS, LVDS, LVPECL 0.4 64-LFCSP $12.65
AD9517-0 Multi-Output Clock Generator 3.3 2 12 Yes 2950 CMOS, LVDS, LVPECL 0.4 48-LFCSP $11.54
AD9517-1 Multi-Output Clock Generator 3.3 2 12 Yes 2650 CMOS, LVDS, LVPECL 0.4 48-LFCSP $11.54
AD9517-2 Multi-Output Clock Generator 3.3 2 12 Yes 2335 CMOS, LVDS, LVPECL 0.4 48-LFCSP $11.54
AD9517-3 Multi-Output Clock Generator 3.3 2 12 Yes 2250 CMOS, LVDS, LVPECL 0.4 48-LFCSP $11.54
AD9517-4 Multi-Output Clock Generator 3.3 2 12 Yes 1800 CMOS, LVDS, LVPECL 0.4 48-LFCSP $11.54