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MAX2323 Datasheet

  • MAX2323

  • Triple Dual Mode CDMA Lan Mixer

  • Maxim   Maxim

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19-1736; Rev 0; 7/00
Triple/Dual-Mode
CDMA LNA/Mixers
________________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.
____________________________Features
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
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
o
2.5dB (typ) Cascade Noise Figure
o
Adjustable LNA IIP3, +5dBm to +13dBm
o
Ultra-Small 28-Pin Package (5mm x 5mm)
MAX2323/MAX2325
Ordering Information
PART
MAX2323EGI
MAX2325EGI
MAX2323EVKIT
TEMP. RANGE
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
PIN- PACKAGE
28 QFN
28 QFN
28 QFN
________________________Applications
CLNAOUT
Pin Configuration/
Functional Diagram
PMIXIN
23
GND
GND
Dual-Mode Cellular Phones
28
27
26
25
GND
24
22
RLNA 1
CMIXIN
Dual-Band, Triple-Mode PCS/Cellular Phones
TOP VIEW
PLNAOUT
21 RBIAS
20 CDMA+
19 CDMA-
18 GND
Typical Application Circuits appear at end of data sheet.
PLNAIN 2
GND 3
CLNAIN 4
SLEEP 5
G2 6
G1 7
MAX2323
17 BAND
16 V
CC
15 FMOUT
8
9
10
11
12
13
14
LOLIN
LOHIN
GND
GND
GND
GND
QFN
________________________________________________________________
Maxim Integrated Products
MODE.
1
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.

MAX2323 PDF文件相關(guān)型號(hào)

MAX2323,MAX2325

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