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Recovery IC. ADN2805 Datasheet

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Recovery IC. ADN2805 Datasheet






ADN2805 IC. Datasheet pdf. Equivalent




ADN2805 IC. Datasheet pdf. Equivalent





Part

ADN2805

Description

1.25 Gbps Clock and Data Recovery IC



Feature


Data Sheet FEATURES Locks to 1.25 Gbps N RZ serial data input Patented clock rec overy architecture No reference clock r equired Loss-of-lock indicator I2C inte rface to access optional features Singl e-supply operation: 3.3 V Low power: 39 0 mW typical 5 mm × 5 mm 32-lead LFCSP , Pb free APPLICATIONS GbE line card 1 .25 Gbps Clock and Data Recovery IC ADN 2805 GENERAL DESCRI.
Manufacture

Analog Devices

Datasheet
Download ADN2805 Datasheet


Analog Devices ADN2805

ADN2805; PTION The ADN2805 provides the receiver functions of quantization and clock and data recovery for 1.25 Gbps. The ADN28 05 automatically locks to all data rate s without the need for an external refe rence clock or programming. All SONET j itter requirements are met, including j itter transfer, jitter generation, and jitter tolerance. All specifications ar e specified for −4.


Analog Devices ADN2805

0°C to +85°C ambient temperature, unle ss otherwise noted. The ADN2805 is avai lable in a compact 5 mm × 5 mm 32-lead LFCSP. FUNCTIONAL BLOCK DIAGRAM REFC LKP/REFCLKN (OPTIONAL) LOL CF1 CF2 VCC VEE PIN NIN VREF FREQUENCY DETECT LOOP FILTER BUFFER .


Analog Devices ADN2805

.

Part

ADN2805

Description

1.25 Gbps Clock and Data Recovery IC



Feature


Data Sheet FEATURES Locks to 1.25 Gbps N RZ serial data input Patented clock rec overy architecture No reference clock r equired Loss-of-lock indicator I2C inte rface to access optional features Singl e-supply operation: 3.3 V Low power: 39 0 mW typical 5 mm × 5 mm 32-lead LFCSP , Pb free APPLICATIONS GbE line card 1 .25 Gbps Clock and Data Recovery IC ADN 2805 GENERAL DESCRI.
Manufacture

Analog Devices

Datasheet
Download ADN2805 Datasheet




 ADN2805
Data Sheet
FEATURES
Locks to 1.25 Gbps NRZ serial data input
Patented clock recovery architecture
No reference clock required
Loss-of-lock indicator
I2C interface to access optional features
Single-supply operation: 3.3 V
Low power: 390 mW typical
5 mm × 5 mm 32-lead LFCSP, Pb free
APPLICATIONS
GbE line card
1.25 Gbps Clock and Data Recovery IC
ADN2805
GENERAL DESCRIPTION
The ADN2805 provides the receiver functions of quantization
and clock and data recovery for 1.25 Gbps. The ADN2805
automatically locks to all data rates without the need for an
external reference clock or programming. All SONET jitter
requirements are met, including jitter transfer, jitter generation,
and jitter tolerance.
All specifications are specified for −40°C to +85°C ambient
temperature, unless otherwise noted. The ADN2805 is available
in a compact 5 mm × 5 mm 32-lead LFCSP.
FUNCTIONAL BLOCK DIAGRAM
REFCLKP/REFCLKN
(OPTIONAL)
LOL
CF1
CF2 VCC VEE
PIN
NIN
VREF
FREQUENCY
DETECT
LOOP
FILTER
BUFFER
PHASE
SHIFTER
PHASE
DETECT
LOOP
FILTER
VCO
DATA
RE-TIMING
2
2
DATAOUTP/
DATAOUTN
CLKOUTP/
CLKOUTN
Figure 1.
ADN2805
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2008–2012 Analog Devices, Inc. All rights reserved.




 ADN2805
ADN2805* Product Page Quick Links
Last Content Update: 11/01/2016
Comparable Parts
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Evaluation Kits
• ADN2805 Evaluation Board
Documentation
Application Notes
• AN-657: ADN2812 Evaluation Board
Data Sheet
• ADN2805: 1.25 Gbps Clock and Data Recovery IC Data
Sheet
Design Resources
• ADN2805 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
Discussions
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Technical Support
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frequently modified.




 ADN2805
ADN2805
TABLE OF CONTENTS
Features .............................................................................................. 1 
Applications....................................................................................... 1 
General Description ......................................................................... 1 
Functional Block Diagram .............................................................. 1 
Revision History ............................................................................... 2 
Specifications..................................................................................... 3 
Jitter Specifications....................................................................... 3 
Output and Timing Specifications ............................................. 4 
Absolute Maximum Ratings............................................................ 6 
Thermal Characteristics .............................................................. 6 
ESD Caution.................................................................................. 6 
Pin Configuration and Function Descriptions............................. 7 
I2C Interface Timing and Internal Register Description............. 8 
Data Sheet
Theory of Operation ...................................................................... 10 
Functional Description.................................................................. 12 
Frequency Acquisition............................................................... 12 
Input Buffer................................................................................. 12 
Lock Detector Operation .......................................................... 12 
SQUELCH Mode........................................................................ 13 
System Reset................................................................................ 13 
I2C Interface ................................................................................ 13 
Applications Information .............................................................. 14 
PCB Design Guidelines ............................................................. 14 
Outline Dimensions ....................................................................... 16 
Ordering Guide .......................................................................... 16 
REVISION HISTORY
3/12—Rev. A to Rev. B
Updated Outline Dimensions ....................................................... 16
Changes to Ordering Guide .......................................................... 16
5/10—Rev. 0 to Rev. A
Changes to Figure 5 and Table 6..................................................... 7
Changes to Figure 14...................................................................... 14
Added Exposed Pad Notation to Outline Dimensions ............. 16
1/08—Revision 0: Initial Version
Rev. B | Page 2 of 16



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