MAX2651EUB Maxim, MAX2651EUB Datasheet

MAX2651EUB

Manufacturer Part Number

MAX2651EUB

Description

GSM900 and DCS1800/PCS1900 Dual-Band / Low-Noise Amplifiers

Manufacturer

Maxim

Datasheets

1.MAX2651EUB-T.pdf (16 pages)

2.MAX2651EUB.pdf (16 pages)

3.MAX2651EUB.pdf (16 pages)

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Download datasheet (312Kb)

The MAX2651/MAX2652/MAX2653 silicon germanium

(SiGe), low-noise amplifiers (LNAs) are intended for use

in GSM900, DCS1800, and PCS1900 band wireless

handsets. The MAX2651/MAX2652 consist of two LNAs,

one optimized for the GSM900 band and the other opti-

mized for the DCS1800/PCS1900 bands. They feature a

band-select pin to switch between the two LNAs, as well

as a gain-step input to reduce the gain of each LNA by

20dB and reduce supply current. The MAX2652 is func-

tionally equivalent to the MAX2651, but features a low-

power shutdown mode. The MAX2653 consists of a

single LNA optimized for the DCS1800 and PCS1900

bands, and has a shutdown feature and a 20dB gain

step.

The MAX2652 and MAX2653 together form an ideal

solution for triple-band phone applications (GSM, DCS,

and PCS bands).

The MAX2651/MAX2652/MAX2653 are fabricated using

an advanced high-frequency SiGe bipolar process. As

a result, all devices provide low noise figure, high gain,

and high input third-order intercept point (IP3) perfor-

mance at the GSM, DCS, and PCS bands. A pull-up

resistor to V

adjustability. A minimal number of external components

are needed for input and output matching, helping to

reduce board space.

The MAX2651/MAX2652 are packaged in a 10-pin µMAX,

while the MAX2653 is packaged in an 8-pin µMAX. All

devices operate from a single +2.7V to +3.3V supply.

19-1506; Rev 2; 8/03

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.

( ) ARE FOR MAX2651.

SHDN (GND)

GSM900/DCS1800 Dual-Band Phones

GSM900/DCS1800/PCS1900 Triple-Band Phones

DCS1800 or PCS1900 Single-Mode Phones

IS-136 TDMA Dual-Band Phones

GSMIN

DCSIN

BAND

GND

at each LNA output allows for gain

________________________________________________________________ Maxim Integrated Products

LOW

General Description

HIGH

Applications

Dual-Band, Low-Noise Amplifiers

GSM900 and DCS1800/PCS1900

MAX2651

MAX2652

CONTROL

DC BIAS

Pin Configurations/Functional Diagrams

GAIN

GSMOUT

DCSOUT

GND

o Wide Operating Frequency Range

o Excellent Low-Noise Performance

o High Gain

o 20dB Gain Reduction in Low-Gain Mode

o Externally Adjustable Gain

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

o Low Supply Current

o 0.25µA Shutdown Current (MAX2652/53)

DCSIN

SHDN

MAX2651EUB

MAX2652EUB

MAX2653EUA

GND

800MHz to 1000MHz (MAX2651/52)

1800MHz to 2000MHz (MAX2651/52/53)

1.2dB/1.3dB over GSM Receive Band

(MAX2651/52)

1.8dB/1.8dB/1.7dB over DCS Receive Band

(MAX2651/52/53)

18dB over GSM Receive Band (MAX2651/52)

18dB/17.5dB/18.5dB over DCS Receive Band

(MAX2651/52/53)

5.4mA to 7.0mA in High-Gain Mode

2.2mA in Low-Gain Mode

PART

LOW

-40°C to +85°C

TEMP RANGE

HIGH

Ordering Information

CONTROL

MAX2653

DC BIAS

10 µMAX

8 µMAX

PIN-PACKAGE

Features

GAIN

DCSOUT

GND

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