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Data Sheet

FULL DATA SHEET (PDF, 232kB) Download   E-Mail

Description

The MAX3873A is a compact, low-power 2.488Gbps/2.67Gbps clock-recovery and data-retiming IC for SDH/SONET applications. The phase-locked loop (PLL) recovers a synchronous clock signal from the serial NRZ data input. The input data is then retimed by this recovered clock, providing a clean data output. The MAX3873A meets all SDH/SONET jitter specifications, does not require an external reference clock to aid in frequency acquisition, and provides excellent tolerance to both deterministic and sinusoidal jitter. The MAX3873A provides a PLL loss-of-lock (active-low LOL) output to indicate whether the CDR is in lock. The recovered data and clock outputs are CML with on-chip 50Ω back terminations on each line. The clock output can be powered down if not used. The MAX3873A is implemented in Maxim's second-generation SiGe process and consumes only 260mW at 3.3V supply (output clock disabled, low output swing). The device is available in a 4mm x 4mm 20-pin QFN exposed-pad package and operates from -40°C to +85°C.

An evaluation kit is available:  MAX3873AEVKIT  

Key Features		Applications/Uses
Fully Integrated Clock Recovery and Data Retiming Power Dissipation: 260mW with +3.3V Supply Clock Jitter Generation: 5mUIRMS Exceeds ANSI, ITU, and Bellcore SDH/SONET Jitter Specifications Differential Input Range: 50mVP-P to 1.6VP-P Single +3.3V Power Supply PLL Fast Track (FASTRACK) Mode Available Clock Output Can Be Disabled Input Data Rate: 2.488Gbps or 2.67Gbps Selectable Output Amplitude Tolerates 2000 Consecutive Identical Digits Loss-of-Lock Indicator Differential CML Data and Clock Outputs Operating Temperature Range: -40°C to +85°C		Add/Drop Multiplexers Digital Cross-Connects DWDM Transmission Systems SDH/SONET Receivers and Regenerators SDH/SONET Test Equipment Switch Matrix Backplanes

Key Specifications:  Clock and Data Recovery

Part Number

Functions

Target Oper. Range (Gbps)

Data Rate (Mbps)

Data Rate (Mbps)

Multirate

VSUPPLY (V)

ICC (mA)

I/O Type

Input Sens. (mV)

Package/Pins

Oper. Temp. (°C)

Price

min

max

typ

See Notes

MAX3873A

CDR

1 to 4.5

2488

2670

Yes

3.3

79

CML

50

QFN/20 TQFN/20

-40 to +85

$19.40 @1k

See All Clock and Data Recovery (8)

Diagram

Typical Application Circuit

Evaluation Kits

MAX3873AEVKIT

Design Guides

Fiber (PDF)

Reliability Reports

Show FIT data for: MAX3873A Request Reliability Report for: MAX3873A

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-4 of 4

MAX3873A	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX3873AEGP			Active	QFN;20 pin;16 mm² Outline Drawing: 21-0106 (PDF) Land Pattern: 90-0217 (PDF) Use pkgcode/variation: G2044-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX3873AEGP-T			Active	QFN;20 pin;16 mm² Outline Drawing: 21-0106 (PDF) Land Pattern: 90-0217 (PDF) Use pkgcode/variation: G2044-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX3873AETP+			Active	TQFN;20 pin;17 mm² Outline Drawing: 21-0139 (PDF) Land Pattern: 90-0037 (PDF) Use pkgcode/variation: T2044+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3873AETP+T			Active	TQFN;20 pin;17 mm² Outline Drawing: 21-0139 (PDF) Land Pattern: 90-0037 (PDF) Use pkgcode/variation: T2044+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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Description   Key Features   Applications/Uses   Key Specifications   Diagram

Data Sheet   Application Notes   Design Guides   Engineering Journals   Reliability Reports   Software/Models   Evaluation Kits

Price and Availability   Samples   Buy Online   Package Information   Lead-Free Information

Related Products   Notes and Comments   Evaluation Kits

Document Ref.: 19-2577; Rev 2; 2007-05-14
This page last modified: 2009-10-14