MAX2750AUA+ Maxim Integrated Products, MAX2750AUA+ Datasheet

MAX2750AUA+

Manufacturer Part Number

MAX2750AUA+

Description

Timers & Support Products 2400MHz to 2500MHz M onolithic VCO with I

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX2750AUA.pdf (6 pages)

Specifications of MAX2750AUA+

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current page: 1 of 6
Download datasheet (246Kb)

The MAX2750AUA is a self-contained voltage-controlled

oscillator (VCO) intended for use over the 2370MHz

to 2470MHz frequency range. The IC combines a fully

integrated oscillator and output buffer in a miniature 8-pin

µMAX

The inductor and varactor elements of the tank are inte-

grated on-chip, greatly simplifying application of the part.

The only required external components are a couple of

supply bypass capacitors. The IC provides direct connec-

tion to the VCO tuning voltage input and the VCO buffer

output. The tuning voltage input range is +0.4V to +2.4V,

and the oscillator frequency tuning range is factory adjust-

ed to provide guaranteed limits. The output signal is

buffered by an amplifier stage (internally matched to 50 )

to provide higher output power and isolate the device from

load impedance variations.

The MAX2750AUA operates over a +2.7V to +5.5V sup-

ply voltage range. Internal regulation of the oscillator sup-

ply voltage eliminates the need for an external LDO

regulator for the VCO. The IC also provides a digitally con-

trolled shutdown mode to permit implementation of

sophisticated power-supply management. In shutdown,

the supply current is reduced to less than 2µA.

µMAX is a registered trademark of Maxim Integrated Products, Inc.

19-0831; Rev 0; 6/07

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

________________________Applications

Automotive

2.4GHz ISM Band

package.

Voltage-Controlled Oscillator for Automotive

________________________________________________________________ Maxim Integrated Products

General Description

SHDN

TUNE

BYP

TUNE

GND

SHDN

MAX2750AUA

OSCILLATOR

CORE

BIAS

♦ Guaranteed Frequency Tuning Range:

♦ On-Chip Tank Circuit

♦ Internally Matched Output Buffer Amplifier

♦ Low-Current Shutdown Mode

♦ +2.7V to +5.5V Supply Voltage Range

♦ Miniature 8-Pin µMAX Package

♦ -40°C to +125°C Temperature Range

+ Denotes a lead-free package.

Pin Configuration appears at end of data sheet.

MAX2750AUA+ -40°C to +125°C

2370MHz to 2470MHz

PART

GND

OUT

CC1

CC2

2.4GHz Monolithic

Typical Operating Circuit

TEMP RANGE

Ordering Information

OUT TO MIXER/

SYNTHESIZER

8 μMAX

PIN-

PACKAGE

Features

CODE

PKG

U8-1

Related parts for MAX2750AUA+

MAX2750AUA+ Summary of contents

Page 1

... Internally Matched Output Buffer Amplifier ♦ Low-Current Shutdown Mode ♦ +2.7V to +5.5V Supply Voltage Range ♦ Miniature 8-Pin µMAX Package ♦ -40°C to +125°C Temperature Range PART MAX2750AUA+ -40°C to +125°C + Denotes a lead-free package. Pin Configuration appears at end of data sheet. BYP TUNE OSCILLATOR ...

Page 2

Monolithic Voltage-Controlled Oscillator for Automotive ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V CC TUNE, SHDN, BYP, OUT to GND ...............-0. Continuous Power Dissipation (T = +70°C) A 8-Pin µMAX (derate 5.7mW/°C above T Stresses beyond ...

Page 3

Voltage-Controlled Oscillator for Automotive (Circuit of Figure +3.0V TUNE PHASE NOISE -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 0.1 1 OFFSET FREQUENCY (MHz) OSCILLATOR TURN-ON TIME 0 -10 -20 -30 -40 ...

Page 4

Monolithic Voltage-Controlled Oscillator for Automotive PIN NAME 1 BYP VCO Bypass. Bypass with a 0.1μF capacitor to GND. Oscillator Frequency Tuning Voltage Input. High-impedance input with a voltage input range of +0.4V 2 TUNE (low frequency) to +2.4V (high ...

Page 5

Voltage-Controlled Oscillator for Automotive Detailed Description The MAX2750AUA VCO is implemented oscil- lator topology, integrating all of the tank components on-chip. This fully monolithic approach provides an extremely easy-to-use VCO, equivalent to a VCO mod- ule. The ...

Page 6

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 6 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products ...

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