MAX2605EUT

更新时间： 2024-02-08 14:57:08

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MAX2605EUT 数据手册

19-1673; Rev 0a; 4/02

45MHz to 650MHz, Integrated IF

VCOs with Differential Output

General Description

Features

The MAX2605–MAX2609 are compact, high-performance

intermediate-frequency (IF) voltage-controlled oscillators

(VCOs) designed specifically for demanding portable

wireless communication systems. They combine monolith-

ic construction with low-noise, low-power operation in a

tiny 6-pin SOT23 package.

ꢀ Small Size

ꢀ Integrated Varactor for Tuning

ꢀ Low Phase Noise

ꢀ Wide Application Frequency Range

ꢀ Differential or Single-Ended Outputs

ꢀ Single +2.7V to +5.5V Supply

ꢀ Ultra-Small SOT23-6 Package

ꢀ On-Chip Temperature-Stable Bias

ꢀ Low-Current Operation

These low-noise VCOs feature an on-chip varactor and

feedback capacitors that eliminate the need for external

tuning elements, making the MAX2605–MAX2609 ideal

for portable systems. Only an external inductor is

required to set the oscillation frequency. In addition, an

integrated differential output buffer is provided for dri-

ving a mixer or prescaler. The buffer output is capable

of supplying up to -8dBm (differential) with a simple

power match. It also provides isolation from load

impedance variations.

The MAX2605–MAX2609 operate from a single +2.7V to

+5.5V supply and offer low current consumption. These IF

oscillators can cover the 45MHz to 650MHz frequency

range.

Ordering Information

PIN-

TOP

PART

TEMP. RANGE

PACKAGE MARK

MAX2605EUT-T

MAX2606EUT-T

MAX2607EUT-T

MAX2608EUT-T

MAX2609EUT-T

-40°C to +85°C

6 SOT23-6

AABB

AABC

AABD

AABE

AABF

Applications

Cellular and PCS Mobile Phones

2.4GHz ISM Band

902MHz to 928MHz ISM Band

Land Mobile Radio

GPS Receivers

General-Purpose IF Oscillators

Pin Configuration/

Functional Diagram

Selector Guide

FREQUENCY

RANGE

SUPPLY

CURRENT

(mA)

PHASE

NOISE

(dBc/Hz)

TOP VIEW

PART

(MHz)

MAX2605

MAX2606

MAX2607

MAX2608

MAX2609

45 to 70

70 to 150

150 to 300

300 to 500

500 to 650

1.9

2.1

2.7

3.6

-117

-112

-107

-100

-93

MAX2605

MAX2606

MAX2607

MAX2608

MAX2609

IND

GND

OUT+

TUNE

OUT-

SOT23-6

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...15

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