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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 304kB) Download   E-Mail

Description

The MAX9491 multipurpose clock generator is ideal for communication applications. It offers a factory-programmable PLL output that can be set to almost any frequency, ranging from 4MHz to 200MHz. The MAX9491 uses a one-time-programmable (OTP) ROM to program the PLL output. The MAX9491 also features an integrated voltage-controlled crystal oscillator (VCXO) that is tuned by a DC voltage. The VCXO output is used as the PLL input. The VCXO has a wide ±200ppm (typ) tuning range. The OTP on the MAX9491 is factory preset, based upon the customer request. Contact the factory for samples with preferred frequencies. The device operates from a 3.3V supply and is specified over the -40°C to +85°C extended temperature range. The MAX9491 is available in 14-pin TSSOP and 20-pin TQFN (5mm x 5mm) packages.

Key Features		Applications/Uses
5MHz to 35MHz for Crystal-Clock Reference 5MHz to 50MHz for a Driver Clock Reference One Fractional-N PLL with Buffered Output 4MHz to 200MHz Output Frequency Range Low RMS Jitter PLL (< 13ps) at 197 MHz Integrated VCXO with ±200ppm Tuning Range Available in 14-Pin TSSOP and 20-Pin TQFN Packages +3.3V Supply -40°C to +85°C Temperature Range		Data Networking Systems Home Entertainment Centers SOHO Telecommunications

Diagram

Typical Operating Circuit

Application Notes

Application Note 3437: Solutions for Integrated Clock Sources Using the MAX9489/MAX9471 Multiple-Output Clock Generators - MAX9491 Application Note 3578: Audio Data Transmission in MAX9217/MAX9218 Video Link - MAX9491 Application Note 3736: How to Test the Crystal's Power Level in the MAX9485 - MAX9491

Reliability Reports

Show FIT data for: MAX9491 Request Reliability Report for: MAX9491

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: 1-16 of 16

MAX9491	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX9491ETP010			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX9491ETP045			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX9491ETP045-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX9491ETP095			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX9491ETP095-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX9491ETP010+T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX9491ETP010-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX9491ETP045+			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0010 (PDF) Use pkgcode/variation: T2055+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9491ETP045+T			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0010 (PDF) Use pkgcode/variation: T2055+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9491ETP080+			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0010 (PDF) Use pkgcode/variation: T2055+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9491ETP080+T			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0010 (PDF) Use pkgcode/variation: T2055+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9491ETP095+			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0010 (PDF) Use pkgcode/variation: T2055+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9491ETP095+T			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0010 (PDF) Use pkgcode/variation: T2055+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9491ETP010+			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0010 (PDF) Use pkgcode/variation: T2055+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9491EUD			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX9491EUD-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet

More Information

New Product Press Release 2006-02-13

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