MAX2063ETM+【PDF 1/22 页】IC VGA PROG DIGITAL 48TQFN-EP

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19-5303; Rev 0; 6/10

Dual 50MHz to 1000MHz High-Linearity,

Serial/Parallel-Controlled Digital VGA

General Description

The MAX2063 high-linearity, dual digital variable-gain

amplifier (VGA) operates in the 50MHz to 1000MHz

frequency range. Each digital attenuator is controlled

as a slave peripheral using either the SPI K -compatible

interface or a 5-bit parallel bus with 31dB total adjust-

ment range in 1dB steps. An added feature allows

“rapid-fire” gain selection between each of four steps,

preprogrammed by the user through the SPI-compatible

interface. A separate 2-pin control allows the user to

quickly access any one of four customized attenuation

states without reprogramming the SPI bus.

Since each of the stages has its own external RF input

and RF output, this component can be configured

to either optimize noise figure (amplifier configured

first) or OIP3 (amplifier configured last). The device’s

performance features include 24dB of amplifier gain

(amplifier only), 5.6dB noise figure (NF) at maximum

gain (including attenuator insertion losses), and a high

OIP3 level of +41dBm. Each of these features makes the

device an ideal VGA for multipath receiver and transmitter

applications.

In addition, the device operates from a single +5V

supply with full performance, or a +3.3V supply for an

enhanced power-savings mode with lower performance.

This device is available in a compact 48-pin thin QFN

package (7mm x 7mm) with an exposed pad. Electrical

performance is guaranteed over the extended tempera-

ture range, from T C = -40 N C to +85 N C.

Applications

IF and RF Gain Stages

Temperature-Compensation Circuits

Cellular Band WCDMA and cdma2000 M Base

Stations

GSM 850/GSM 900 EDGE Base Stations

WiMAX K and LTE Base Stations and Customer

Premise Equipment

Fixed Broadband Wireless Access

Wireless Local Loop

Features

S Independently Controlled Dual Paths

S 50MHz to 1000MHz RF Frequency Range

S Pin-Compatible Family Includes

MAX2062 (Analog/Digital VGA)

MAX2064 (Analog-Only VGA)

S 21.3dB (typ) Maximum Gain

S 0.25dB Gain Flatness Over 100MHz Bandwidth

S 31dB Gain Range

S 58dB Path Isolation at 200MHz

S Supports Four “Rapid-Fire” Preprogrammed

Attenuator States

Quickly Access Any One of Four Customized

Attenuation States Without Reprogramming the

SPI Bus

Ideal for Fast-Attack, High-Level Blocker

Protection

Prevents ADC Overdrive Condition

S Excellent Linearity at 200MHz

+41dBm OIP3

+56dBm OIP2

+19dBm Output 1dB Compression Point

S 5.6dB Typical Noise Figure

S 25ns Digital Switching Time

S Very Low Distortion VGA Amplitude Overshoot/

Undershoot of 0.05dB

S Single +5V Supply (or +3.3V Operation)

S Amplifier Power-Down Mode for TDD Applications

Ordering Information

PART TEMP RANGE PIN-PACKAGE

MAX2063ETM+ -40 N C to +85 N C 48 Thin QFN-EP*

MAX2063ETM+T -40 N C to +85 N C 48 Thin QFN-EP*

+ Denotes a lead(Pb)-free/RoHS-compliant package.

* EP = Exposed pad.

T = Tape and reel.

Military Systems

SPI is a trademark of Motorola, Inc.

cdma2000 is a registered trademark of Telecommunications

Industry Association.

WiMAX is a trademark of WiMAX Forum.

_______________________________________________________________ Maxim Integrated Products 1

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.

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