MAX2323EGI Maxim Integrated Products, MAX2323EGI Datasheet

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MAX2323EGI

Manufacturer Part Number
MAX2323EGI
Description
RF Amplifier Triple/Dual-Mode CDMA LNA/Mixer
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX2323EVKIT.pdf (14 pages)

Specifications of MAX2323EGI

Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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________________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.
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.
________________________Applications
19-1736; Rev 0; 7/00
Typical Application Circuits appear at end of data sheet.
Dual-Band, Triple-Mode PCS/Cellular Phones
Dual-Mode Cellular Phones
________________________________________________________________ Maxim Integrated Products
o 2.7V Operation
o Dual Band, Triple Mode
o Three LNA Gain Settings (Cellular)
o Two LNA Gain Settings (PCS)
o 18mA in Low-Gain Mode
o 2.5dB (typ) Cascade Noise Figure
o Adjustable LNA IIP3, +5dBm to +13dBm
o Ultra-Small 28-Pin Package (5mm x 5mm)
____________________________Features
PLNAIN
CLNAIN
MAX2323EGI
MAX2325EGI
MAX2323EVKIT
TOP VIEW
SLEEP
RLNA
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
GND
G2
G1
PART
1
2
3
4
5
6
7
CDMA LNA/Mixers
28
8
Triple/Dual-Mode
27
9
26
10
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Ordering Information
Functional Diagram
25
11
QFN
MAX2323
Pin Configuration/
24
12
23
13
22
14
28 QFN
28 QFN
28 QFN
PIN- PACKAGE
21
20
19
18
17
16
15
RBIAS
CDMA+
CDMA-
GND
BAND
V
FMOUT
CC
1

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MAX2323EGI Summary of contents

Page 1

... FM Mode, High-Gain, Low-Linearity Mode o 2.5dB (typ) Cascade Noise Figure o Adjustable LNA IIP3, +5dBm to +13dBm o Ultra-Small 28-Pin Package (5mm x 5mm) Ordering Information PART TEMP. RANGE MAX2323EGI -40°C to +85°C MAX2325EGI -40°C to +85°C MAX2323EVKIT -40°C to +85°C Pin Configuration/ Functional Diagram ...

Page 2

Triple/Dual-Mode CDMA LNA/Mixers ABSOLUTE MAXIMUM RATINGS V to GND ...............................................................0.3V, +4.3V CC Digital Input Voltage to GND ......................-0. LNA Input Level .....................................................................1Vp LO, Mixer Input Levels .....................................................+5dBm Digital Input Current .........................................................±10mA Continuous Power Dissipation (T = +70°C) A ...

Page 3

AC ELECTRICAL CHARACTERISTICS (MAX2323 EV kit 1960MHz, F PLNAIN R = 24kΩ. Typical values are V RLNA CC noted.) (Note 1) PARAMETER OVERALL PERFORMANCE Low-Band RF Frequency Range (Note 2) High-Band RF Frequency MAX2323 (Note 2) Range Low-Band ...

Page 4

Triple/Dual-Mode CDMA LNA/Mixers AC ELECTRICAL CHARACTERISTICS (continued) (MAX2323 EV kit 1960MHz, F PLNAIN R = 24kΩ. Typical values are V = 2.75V, T RLNA CC noted.) (Note 1) PARAMETER CDMA HIGH-GAIN, LOW-LINEARITY PAGING MODE Gain T A LNA ...

Page 5

PIN NAME MAX2323 MAX2325 1 1 RLNA — 2, 10, 23 N.C. 2 — PLNAIN 11, 12, 12, 13, 18, 13, 17, 18, GND 24, 25, 27 24, 25 CLNAIN 5 5 ...

Page 6

Triple/Dual-Mode CDMA LNA/Mixers MAX2323 MAX2325 NAME 28 28 CLNAOUT Slug Slug GND Table 1. MAX2323 Operational Modes MODES PCS Band, High Gain, P High Linearity (HGHL) PCS Band, High Gain, Low Linearity (Paging P Mode) (HGLL) PCS Band, Midgain P ...

Page 7

Table 2. MAX2325 Operational Modes MODES Cellular Band CDMA Mode, High Gain, High C Linearity (HGHL) Cellular Band CDMA, High Gain, Low Linearity C (Paging Mode) (HGLL) Cellular Band, CDMA C Mode, Midgain (MGHL) Cellular Band, CDMA C Mode, Low ...

Page 8

Triple/Dual-Mode CDMA LNA/Mixers Table 3. Cellular LNA S Parameters in High-Gain High-Linearity Mode FREQUENCY S11 S11 (MHz) (MAG) (PHASE) 700 0.623 -81.9 750 0.627 -84.3 800 0.629 -86.6 850 0.631 -89.0 900 0.632 -91.4 950 0.635 -93.7 1000 0.635 -96.0 ...

Page 9

Table 5. Cellular Mixer S11 in High-Gain High-Linearity Mode FREQUENCY S11 (MHz) (MAG) 700 0.803 750 0.792 800 0.799 850 0.769 900 0.761 950 0.751 1000 0.738 _______________________________________________________________________________________ Triple/Dual-Mode CDMA LNA/Mixers Table 6. PCS Mixer S11 in High-Gain High-Linearity Mode ...

Page 10

Triple/Dual-Mode CDMA LNA/Mixers Table 7. Mixer IF Port S22 DIGITAL MIXER (SINGLE-ENDED) FREQUENCY S22 (MHz) (MAG) 50 0.999 100 0.997 110 0.996 130 0.995 150 0.994 200 0.993 210 0.992 250 0.986 300 0.983 350 0.982 400 0.977 10 ______________________________________________________________________________________ ...

Page 11

CELLULAR PCS 3 4 CELLULAR SLEEP CELLULAR LO PCS LO ______________________________________________________________________________________ Triple/Dual-Mode CDMA LNA/Mixers Typical Application Circuits PCS ...

Page 12

Triple/Dual-Mode CDMA LNA/Mixers SLEEP ______________________________________________________________________________________ Typical Application Circuits (continued MAX2325 ...

Page 13

... SMA connectors (vertical mount) 2 CMIXIN Digi-Key J500-ND Test points GND, VCC 2 Mouser 151-203 JU1, JU3, JU4, 5 3-pin headers JU7, JU9 JU2, JU6, JU8, 4 2-pin headers JU10 None 10 Shunts (JU1–JU4, JU6–JU10 MAX2323EGI (QFN-28) None 1 MAX2323/MAX2325 data sheet None 1 MAX2323 PC board 13 13 ...

Page 14

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2000 Maxim Integrated Products For the latest package outline information www ...

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