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MAX2700EVKIT, MAX2701, MAX2701ECM+

Table of contents:
Info of MAX2700EVKIT
Info of MAX2701
Info of MAX2701ECM+

MAX2700EVKIT, MAX2701, MAX2701ECM+ Selling Leads, Datasheet

MFG:MAXIM Package Cooled:MAX D/C:06+

MAX2700EVKIT, MAX2701, MAX2701ECM+ Picture

MAX2700EVKIT, MAX2701, MAX2701ECM+ Datasheet download

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Part Number: MAX2700EVKIT

MFG: MAXIM

Package Cooled: MAX

D/C: 06+

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MAX2701 General Description

The MAX2700/MAX2701 are highly integrated direct downconversion (zero-IF) receivers designed for wideband wireless local loop (WLL) systems operating in the 1.8GHz to 2.5GHz band. The MAX2700/MAX2701s' zero-IF architecture eliminates the need for IF downconversion stages and the use of an IF SAW filter. This reduces the overall receiver cost by reducing the component count and required board space.

The MAX2700/MAX2701 have three main blocks: lownoise amplifier (LNA), quadrature downconverter, and baseband variable gain amplifiers (VGAs). The LNA is a single-ended amplifier with selectable gain and shutdown options. It provides a high input third-order intercept point (IP3), which reduces cross-modulation and gain compression due to high-level RF interference.The quadrature downconverter section consists of two highly linear double-balanced mixers driven by an external local oscillator (LO) with a selectable LO doubler. The double-balanced mixers are optimized to provide high input IP3 and minimum added noise. The mixers' high input second-order intercept point (IIP2) helps minimize receiver desensitization due to highlevel AM-modulated interferers.

The two baseband VGAs in each channel provide 80dB of total maximum gain and greater than 60dB of gain control. The first AGC amplifier is optimized for low noise, low power dissipation, and high linearity over the entire gain range to ensure high gain compression performance. An external lowpass filter between baseband VGAs provides the required channel selectivity at the adjacent channel. An integrated gain offset correction loop circuit provides <0.3dB amplitude mismatch between the I and Q channels.

The MAX2700/MAX2701 operate from a single +2.7V to +3.3V power supply, drawing only 165mA of supply current and 20µA in shutdown mode. Both devices are available in small 48-pin TQFP packages with exposed paddle (EP) for optimum high-frequency performance.

MAX2701 Maximum Ratings

V_CC to GND..............................................................-0.3V to +6V
RF Signals
P_RFIN, P_LNAIN, P_LO...........................................................+15dBm
Baseband Signals
IIN1+ to IIN1-, IIN2+ to IIN2-,
QIN1+ to QIN1-, QIN2+ to QIN2- .........................................±2V
Input Voltages
AGC, GAIN_SET, SHDN, X2_EN,
CEXT_, RFIN_, LO, LNAIN, IIN_ _,
QIN_ _ , DCI_ _ , DCQ_ _ to GND ...............-0.3V to (VCC + 0.3V)
Input Current
AGC.............................±50mA
All Digital Inputs......................±10mA
Continuous Power Dissipation (T_A= +70°C)
48-Pin TQFP-EP (derate 27mW/°C above +70°C) ......2000mW
Operating Temperature Range ..........................-40°C to +85°C
Storage Temperature Range ...........................-65°C to +150°C
Junction Temperature.......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C

MAX2701 Features

Input Frequency Range
    1.8GHz to 2.1GHz (MAX2700)
    2.1GHz to 2.5GHz (MAX2701)
Cascaded Performance at 1960 MHz
    3.5dB Noise Figure
    -7.5dBm Input IP3 at Maximum Gain
LNA with Selectable Gain and Shutdown Option
High Linearity Direct I/Q Downconverter
Wideband LO Quadrature Generator
3dB Baseband Channel Bandwidth of At Least 56MHz
Variable Gain Baseband Amplifiers with >60dB Control Range
Baseband Gain Offset Correction Loop
+2.7V to +3.3V Single-Supply Operation
Small 48-pin TQFP-EP Package

MAX2701 Typical Application

Wireless Local Loop
Wideband Direct-Sequence Spread-Spectrum
Systems
Two-Way MMDS
Wideband 2.4GHz ISM Radios
Digital Microwave Radios

MAX2701 Connection Diagram

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