MAX2062ETM+【PDF 1/24 页】IC VGA ANALOG/DIGITAL 48TQFN-EP

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19-5511; Rev 1; 11/10

Dual 50MHz to 1000MHz High-Linearity,

Serial/Parallel-Controlled Analog/Digital VGA

General Description

The MAX2062 high-linearity, dual analog/digital variable-

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

frequency range with two independent attenuators in

each signal path. 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 among each of the four steps,

preprogrammed by the user through the SPI-compatible

interface. A separate 2-pin control lets the user quickly

access any one of four customized attenuation states

without reprogramming the SPI bus. Each analog attenu-

ator is controlled using an external voltage or through the

SPI-compatible interface using an on-chip 8-bit DAC.

Since each of the stages has its own external RF input

and RF output, this component can be configured to

either optimize noise figure (NF) (amplifier configured

first), OIP3 (amplifier last), or a compromise of NF and

OIP3. The device’s performance features include 24dB

amplifier gain (amplifier only), 7.3dB NF at maximum

gain (includes attenuator insertion losses), and a high

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

the device an ideal VGA for multipath receiver and trans-

mitter 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.

The device is available in a compact 48-pin TQFN

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

Features

S Independently Controlled Dual Paths

S 50MHz to 1000MHz RF Frequency Range

S Pin-Compatible Family Includes

MAX2063 (Digital-Only VGA)

MAX2064 (Analog-Only VGA)

S 19.4dB (typ) Maximum Gain

S 0.34dB Gain Flatness Over 100MHz Bandwidth

S 64dB Gain Range (33dB Analog Plus 31dB Digital)

S 56dB Path Isolation (at 200MHz)

S Built-In 8-Bit DACs for Analog Attenuation Control

S Supports Four Rapid-Fire Preprogrammed

Attenuator States

Quickly Access Any One of Four Customized

Attenuator States

Ideal for Fast-Attack, High-Level Blocker

Protection

Protects ADC Overdrive Condition

S Excellent Linearity (Configured with Amp Last at

200MHz)

+41dBm OIP3

+56dBm OIP2

+19dBm Output 1dB Compression Point

S 7.3dB Typical Noise Figure (at 200MHz)

S Fast, 25ns Digital Switching

S Very Low Digital VGA Amplitude Overshoot/

Undershoot

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

S Amplifier Power-Down Mode for TDD Applications

Ordering Information

Temperature-Compensation Circuits

GSM/EDGE Base Stations

WCDMA, TD-SCDMA, and cdma2000 M Base

PART

MAX2062ETM+

MAX2062ETM+T

TEMP RANGE

-40 N C to +85 N C

PIN-PACKAGE

48 TQFN-EP*

Stations

WiMAX K , LTE, and TD-LTE Base Stations and

Customer-Premise Equipment

Fixed Broadband Wireless Access

Wireless Local Loop

Military Systems

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

* EP = Exposed pad.

T = Tape and reel.

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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