ADN2805 IC Datasheet

ADN2805 Datasheet PDF, Equivalent


Part Number

ADN2805

Description

1.25 Gbps Clock and Data Recovery IC

Manufacture

Analog Devices

Total Page 17 Pages
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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.
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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
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Features 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 DESCRIPTION The ADN2805 pr ovides the receiver functions of quanti zation and clock and data recovery for 1.25 Gbps. The ADN2805 automatically lo cks to all data rates without the need for an external reference clock or prog ramming. All SONET jitter requirements are met, including jitter transfer, jit ter generation, and jitter tolerance. A ll specifications are specified for − 40°C to +85°C ambient temperature, un less otherwise noted. The ADN2805 is av ailable in a compact 5 mm × 5 mm 32-le ad LFCSP. FUNCTIONAL BLOCK DIAGRAM RE FCLKP/REFCLKN (OPTIONAL) LOL CF1 CF 2 VCC VEE PIN NIN VREF FREQUENCY DETECT LOOP FILTER BUFFER .
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