Rainbow-electronics MAX2389 Manual do Utilizador descarregar pdf (Página 1)

General Description

The MAX2387/MAX2388/MAX2389 low-noise amplifier

(LNA), downconverter mixers designed for W-CDMA

applications, are ideal for ARIB (Japan) and ETSI-

UMTS (Europe) based systems. The MAX2387/

MAX2388/MAX2389 feature ultra-low current consump-

tion and exceptionally low noise figures in ultra-small

packages.

The MAX2387/MAX2388 include an LNA, a downcon-

verter mixer, and a local-oscillator (LO) buffer. The

MAX2389 has an LNA and mixer, but minimizes current

consumption by omitting the LO buffer. For all devices,

the LNA and downconverter mixers are optimized for

the 2110MHz to 2170MHz band. All devices feature a

high-gain mode and a low-gain mode of LNA operation.

The MAX2387 has a 32dB gain step, and the

MAX2388/MAX2389 have an 18dB gain step. All ICs

include a shutdown mode, powering down the IC dur-

ing the front-end receiver’s idle periods.

The mixer 3rd-order nonlinearity performance is set

using an external biasing resistor. For the MAX2387/

MAX2388, mixer performance is optimized for a

-10dBm typical drive at the LO buffer input port. The

MAX2389 mixer performance is optimized for a

-4dBm typical drive at the LO input port. The LO port

for all versions is configurable for either single-ended or

differential operation.

These devices operate from a +2.7V to +3.3V single sup-

ply and are available in ultra-small (3mm

3mm) 12-pin

leadless packages (QFN).

________________________Applications

Japanese 3rd-Generation W-CDMA Cellular

Phones

Dual-Mode W-CDMA/GSM Cellular Phones

Features

♦ Ultra-Low Current Consumption: 10.7mA

(MAX2387), 9.9mA (MAX2388), and 7.9mA

(MAX2389)

♦ +2.7V to +3.3V Single-Supply Operation

♦ Mixer NF: 7dB SSB

♦ Cascaded Noise Figure: 2.3dB

♦ LNA Low-Gain Mode: 32dB Gain Step (MAX2387)

or 18dB Gain Step (MAX2388/MAX2389)

♦ Mixer IIP3: 6dBm

♦ < 1µA Shutdown Current

♦ Ultra-Small (3mm

3mm) 12-Pin QFN Package

MAX2387/MAX2388/MAX2389

W-CDMA LNA/Mixer ICs

________________________________________________________________ Maxim Integrated Products 1

MAX2387/MAX2388

TOP VIEW

BIAS

GND

LNA_IN

9 V

8 IF+

7 IF-

LO+

LO-

1LNA_OUT

2GAIN

3MIX_IN

SHDN

BIAS

MAX2389

BIAS

GND

LNA_IN

9 V

8 IF+

7 IF-

LO+

LO-

1LNA_OUT

2GAIN

3MIX_IN

SHDN

BIAS

Pin Descriptions/Functional Diagrams

19-1834; Rev 1; 5/01

EVALUATION KIT

AVAILABLE

Ordering Information

PART TEMP. RANGE PIN-PACKAGE

MAX2387EGC -40°C to +85°C 12 QFN

MAX2388EGC -40°C to +85°C 12 QFN

MAX2389EGC -40°C to +85°C 12 QFN

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.

1 2 3 4 5 6 ... 10 11

Resumo do Conteúdo

Página 1 - W-CDMA LNA/Mixer ICs

General DescriptionThe MAX2387/MAX2388/MAX2389 low-noise amplifier(LNA), downconverter mixers designed for W-CDMAapplications, are ideal for ARIB (Jap

Página 2

MAX2387/MAX2388/MAX2389W-CDMA LNA/Mixer ICs10 ______________________________________________________________________________________312BIAS11GND10LNA_

Página 3

MAX2387/MAX2388/MAX2389W-CDMA LNA/Mixer ICsS-PARAMETERS LNA (S11) LNA (S21) LNA (S12) LNA (S22)FREQUENCY(MHZ)MAGNITUDE PHASE MAGNITUDE PHASE MAGNITUDE

Página 4

MAX2387/MAX2388/MAX2389W-CDMA LNA/Mixer ICs2 _______________________________________________________________________________________ABSOLUTE MAXIMUM R

Página 5

MAX2387/MAX2388/MAX2389W-CDMA LNA/Mixer ICs_______________________________________________________________________________________ 3PARAMETER SYMBOL C

Página 6

MAX2387/MAX2388/MAX2389W-CDMA LNA/Mixer ICs4 _______________________________________________________________________________________AC ELECTRICAL CHAR

Página 7

MAX2387/MAX2388/MAX2389W-CDMA LNA/Mixer ICs_______________________________________________________________________________________ 5264108141216-40 10

Página 8

MAX2387/MAX2388/MAX2389W-CDMA LNA/Mixer ICs6 _______________________________________________________________________________________264108141216-40 10

Página 9

MAX2387/MAX2388/MAX2389W-CDMA LNA/Mixer ICs_______________________________________________________________________________________ 7-40 10-15 356085MA

Página 10

MAX2387/MAX2388/MAX2389Detailed DescriptionThe MAX2387/MAX2388/MAX2389 include an LNAand downconverter mixer. These devices feature ashutdown mode to

Página 11

IF Output PortThe mixer output appears on the differential IF+ and IF-pins. These open-collector outputs require an externalinductor to VCCfor DC bias

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