AD9511

RECOMMENDED FOR NEW DESIGNS

1.2 GHz Clock Distribution IC, PLL Core, Dividers, Delay Adjust, Five Outputs

Data Sheet (Rev. B) Product Selection Table

Part Models: 2
1ku List Price: Starting From $8.72

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Overview

Low phase noise phase-locked loop core

Reference input frequencies to 250 MHz
Programmable dual-modulus prescaler
Programmable charge pump (CP) current
Separate CP supply (VCP) extends tuning range

Two 1.6 GHz, differential clock inputs
5 programmable dividers, 1 to 32, all integers
Phase select for output-to-output coarse delay adjust

3 independent 1.2 GHz LVPECL outputs

Additive output jitter , 225 fs RMS

2 independent 800 MHz/250 MHz LVDS/CMOS outputs

Additive output jitter, 275 fs RMS
Fine delay adjust on one output, 5-bit delay words

Serial control port
Space-saving 48-lead LFCSP

The AD9511 provides a multi-output clock distribution function along with an on-chip PLL core. The design emphasizes low jitter and phase noise to maximize data converter performance. Other applications with demanding phase noise and jitter requirements also benefit from this part.

The PLL section consists of a programmable reference divider (R); a low noise phase frequency detector (PFD); a precision charge pump (CP); and a programmable feedback divider (N). By connecting an external VCXO or VCO to the CLK2/CLK2B pins, frequencies up to 1.6 GHz may be synchronized to the input reference.

There are five independent clock outputs. Three outputs are LVPECL (1.2 GHz), and two are selectable as either LVDS (800 MHz) or CMOS (250 MHz) levels.

Each output has a programmable divider that may be bypassed or set to divide by any integer up to 32. The phase of one clock output relative to another clock output may be varied by means of a divider phase select function that serves as a coarse timing adjustment. One of the LVDS/CMOS outputs features a programmable delay element with full-scale ranges up to 10 ns of delay. This fine tuning delay block has 5-bit resolution, giving 32 possible delays from which to choose for each full-scale setting.

The AD9511 is ideally suited for data converter clocking applications where maximum converter performance is achieved by encode signals with subpicosecond jitter.

The AD9511 is available in a 48-lead LFCSP and can be operated from a single 3.3 V supply. An external VCO, which requires an extended voltage range, can be accommodated by connecting the charge pump supply (VCP) to 5.5 V. The temperature range is −40°C to +85°C.

APPLICATIONS

Low jitter, low phase noise clock distribution
Clocking high speed ADCs, DACs, DDS, DDC, DUC, MxFEs
High performance wireless transceivers
High performance instrumentation
Broadband infrastructure

Part Models: 2
1ku List Price: Starting From $8.72

Documentation

Frequently Asked Question 1

FAQ 09/05/2025

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD9511BCPZ	48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9511BCPZ-REEL7	48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 9, 2021 - 20_0126 Conversion of Select Sizes LFCSP Products from Punched to Sawn and Transfer of Assembly Site to ASE Korea
		PCN20_0126_Form Qualification Results Summary Material_Report Detailed Change Description Package Outline Drawing Package Outline Drawing Qualification Results Summary Qualification Results Summary Qualification Results Summary Qualification Results Summary
AD9511BCPZ	PRODUCTION
AD9511BCPZ-REEL7	PRODUCTION
Sep 13, 2017 - 16_0077 CANCELLED: Conversion of Select 4x4, 5x5, 6x6 and 7x7mm LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE Korea.
		PCN16_0077_Form Material_Report Detailed Parts List Detailed Parts List Package Outline Drawing Detailed Change Description Qualification Results Summary
AD9511BCPZ	PRODUCTION
AD9511BCPZ-REEL7	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Comparators 1
LTC6957		Low Phase Noise, Dual Output Buffer/Driver/Logic Converter
Phase-Locked Loop (PLL) Synthesizers 1
ADF4002	RECOMMENDED FOR NEW DESIGNS	Phase Detector / PLL Frequency Synthesizer

Tools & Simulations

ADIsimCLK Design and Evaluation Software

ADIsimCLK is the design tool developed specifically for Analog Devices' range of ultra-low jitter clock distribution and clock generation products. Whether your application is in wireless infrastructure, instrumentation, networking, broadband, ATE or other areas demanding predictable clock performance, ADIsimCLK will enable you to rapidly develop, evaluate and optimize your design.

Open Tool

AD9511 IBIS Models 1

AD9511 (All Models/All Speed Grades)

Evaluation Kits

AD9511 Evaluation Board

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Product Details

The AD9511 evaluation board is a compact, easy-to-use platform for evaluating all features of the AD9511. The evaluation software provides a graphical user interface (GUI) for easy interface with the various on- chip functions of the AD9511. This allows for a thorough exploration and evaluation of the AD9511’s operation, performance, and capabilities. Note that the AD9511 evaluation board software should be installed before connecting the AD9511 evaluation board to the PC.

The AD9511 is a highly sophisticated, performance clock distribution part with numerous user programmable functions. To use the evaluation board properly, refer to the current data sheet for the AD9511.