Rainbow-electronics MAX2325 Bedienungsanleitung PDF herunterladen

________________General Description

The MAX2323/MAX2325 are low-noise amplifier (LNA)

plus mixer ICs optimized for code-division multiple-access

(CDMA) applications in both cellular and PCS bands. The

MAX2323 addresses dual-band, triple-mode CDMA appli-

cations by providing switched signal paths for cellular FM,

cellular CDMA, and PCS CDMA. The MAX2325 is a cellu-

lar-band dual-mode version.

To optimize cellular-band dynamic range at minimum cur-

rent, the MAX2323/MAX2325 implement four LNA states:

high gain/high linearity, high gain/low linearity, midgain,

and low gain. In high-gain/high-linearity mode, the

adjustable high-intercept LNA minimizes desensitization in

the presence of a large interfering signal. For the other

gain states, the LNA current is reduced to improve stand-

by time.

The CDMA mixers are designed for high linearity, low

noise, and differential IF outputs, while the FM mixer is

designed for lower current and single-ended output. Each

band is implemented with a separate mixer to optimize

performance for the specific band.

The MAX2323/MAX2325 can also be used in TDMA,

EDGE, and W-CDMA phones.

________________________Applications

Dual-Band, Triple-Mode PCS/Cellular Phones

Dual-Mode Cellular Phones

____________________________Features

♦ 2.7V Operation

♦ Dual Band, Triple Mode

♦ Three LNA Gain Settings (Cellular)

♦ Two LNA Gain Settings (PCS)

♦ 18mA in Low-Gain Mode

19.5mA in Paging and Midgain Mode

26.5mA in High-Gain, High-Linearity Mode

16.5mA in FM Mode, High-Gain, Low-Linearity

Mode

♦ 2.5dB (typ) Cascade Noise Figure

♦ Adjustable LNA IIP3, +5dBm to +13dBm

♦ Ultra-Small 28-Pin Package (5mm x 5mm)

MAX2323/MAX2325

Triple/Dual-Mode

CDMA LNA/Mixers

________________________________________________________________ Maxim Integrated Products 1

19-1736; Rev 0; 7/00

For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

Pin Configuration/

Functional Diagram

Typical Application Circuits appear at end of data sheet.

MAX2323

2526

28 22

2324

10 11 12 13 14

MODE.

GND

LOLIN

LOHIN

GND

CMIXIN

CLNAOU

GND

PLNAOU

GND

PMIXIN

GND

CLNAIN

SLEEP

PLNAIN

RLNA

CDMA-

GND

BAND

FMOUT

CDMA+

RBIAS

QFN

TOP VIEW

PART TEMP. RANGE PIN- PACKAGE

MAX2323EGI -40°C to +85°C 28 QFN

MAX2325EGI -40°C to +85°C

28 QFN

MAX2323EVKIT -40°C to +85°C

28 QFN

Ordering Information

1 2 3 4 5 6 ... 13 14

Inhaltsverzeichnis

Seite 1 - CDMA LNA/Mixers

________________General DescriptionThe MAX2323/MAX2325 are low-noise amplifier (LNA)plus mixer ICs optimized for code-division multiple-access(CDMA) a

Seite 2

MAX2323/MAX2325Triple/Dual-ModeCDMA LNA/Mixers10 ______________________________________________________________________________________Table 7. Mixer

Seite 3

MAX2323/MAX2325Triple/Dual-ModeCDMA LNA/Mixers______________________________________________________________________________________ 1125262728 222324

Seite 4

MAX2323/MAX2325Triple/Dual-ModeCDMA LNA/Mixers12 ______________________________________________________________________________________MODEVCOG1G2SLEE

Seite 5

MAX2323/MAX2325Triple/Dual-ModeCDMA LNA/Mixers______________________________________________________________________________________ 13_______________

Seite 6

MAX2323/MAX2325Triple/Dual-ModeCDMA LNA/MixersMAX2323U1CLNAOUTRLNAPLNAINGNDCLNAINSLEEPG2G1RBIASIF+IF-GNDBANDVCCFMGND PLNAOUT GND GND PMIXIN CMIXINGND

Seite 7

MAX2323/MAX2325Triple/Dual-ModeCDMA LNA/Mixers2 _______________________________________________________________________________________ABSOLUTE MAXIMU

Seite 8

MAX2323/MAX2325Triple/Dual-ModeCDMA LNA/Mixers_______________________________________________________________________________________ 3AC ELECTRICAL C

Seite 9

Note 1: Devices are production tested for functionality at frequencies stated; 30 units from 3 independent wafer lots, when one lotwas at the upper pr

Seite 10

MAX2323/MAX2325Triple/Dual-ModeCDMA LNA/Mixers_______________________________________________________________________________________ 5Pin Description

Seite 11

MAX2323/MAX2325Triple/Dual-ModeCDMA LNA/Mixers6 _______________________________________________________________________________________Pin Description

Seite 12

MAX2323/MAX2325Triple/Dual-ModeCDMA LNA/Mixers_______________________________________________________________________________________ 7FUNCTION CTRL P

Seite 13

MAX2323/MAX2325Triple/Dual-ModeCDMA LNA/Mixers8 _______________________________________________________________________________________Table 3. Cellul

Seite 14

MAX2323/MAX2325Triple/Dual-ModeCDMA LNA/Mixers_______________________________________________________________________________________ 9Table 5. Cellul

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Rainbow-electronics MAX2325 Bedienungsanleitung

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