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MAX2531ETI-

Description
RF Mixer
CategoryTopical application    Wireless rf/communication   
File Size601KB,27 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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RF Mixer

MAX2531ETI- Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerMaxim
Product CategoryRF Mixer
19-2487; Rev 3; 1/04
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
General Description
The MAX2351/MAX2354/MAX2358/MAX2359/MAX2530/
MAX2531/MAX2537/MAX2538 family of single- and multi-
band LNA/mixer ICs is optimized for CDMA, GSM, and
TDMA applications in both cellular and PCS bands. In
addition, the MAX2530/MAX2531/MAX2537/MAX2538 ICs
feature a GPS LNA/mixer signal path for E911 and traveler
assistance applications. The cellular and PCS signals can
be routed to either IF port. For example, one IF port can be
connected to an IF filter with 30kHz bandwidth, while the
other port can drive an IF filter with a wider bandwidth. The
GPS band has its own IF port.
To optimize dynamic range at minimum current, the
MAX2351/MAX2354/MAX2358/MAX2359/MAX2530/
MAX2531/MAX2537/MAX2538 implement multiple LNA
and mixer states, including high gain/high linearity, high
gain/low linearity, midgain, low gain, and ultra-low gain. In
high-gain/high-linearity mode, the high-IP3 LNA mini-
mizes desensitization in the presence of a large interfer-
ing signal. For the other gain states, the LNA current is
reduced to improve standby time. Each band is imple-
mented with a separate mixer to optimize performance for
the specific band, and each mixer provides multiple lin-
earity modes to optimize linearity and current consump-
tion. The ultra-low gain mode operates with very little
current, which results in significant power savings
because the handset typically spends most of its time in
this mode.
Features
Eliminate Up to 35 External Components
Low LNA Noise Figure
PCS: 1.2dB
Cellular: 0.9dB
GPS: 1.0dB
No External GPS VCO Required
No Interstage GPS SAW Filter Required
Triple Band, Quadruple Mode
Ultra-Low Current: <10mA Average in CDMA
Phones
Small 28-Pin QFN Package (5mm
5mm)
MAX2351/4/8/9/MAX2530/1/7/8
Ordering Information
PART
MAX2351ETI
MAX2354ETI
MAX2358ETI
MAX2359ETI
MAX2530ETI
MAX2531ETI
MAX2537ETI
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
28 Thin QFN-EP*
28 Thin QFN-EP*
28 Thin QFN-EP*
28 Thin QFN-EP*
28 Thin QFN-EP*
28 Thin QFN-EP*
28 Thin QFN-EP*
28 Thin QFN-EP*
MAX2538ETI
-40°C to +85°C
*EP
= exposed pad.
Applications
Triple-Band, Quadruple-Mode PCS/Cellular Handsets
PLNA_OUT
Pin Configurations
CMIX_IN
PMIX_IN
IF_SEL
BAND
IF1+
22
IF1-
23
Single-Band Handsets
E911 and Traveler Assistance Through GPS
GSM/TDMA Cellular Phones
CLNA_OUT
28
27
26
25
24
Selector Guide
PLNA_IN
1
21
GIF-
2
IF OUTPUT MUX
20
GIF+
PART
MAX2351
MAX2354
MAX2358
MAX2359
MAX2530
MAX2531
MAX2537
MAX2538
CELL PCS GPS
CELL VCO
Input
Input
Internal divider
Input
Input
Internal divider
Internal divider
PCS VCO
Internal doubler
Input
Input
Input
Internal doubler
Input
Input
G1
7
8
GLNA_OUT
9
G2
10
GMIX_IN
11
MODE
÷1.5
SHDN
5
GND
3
19
IFO-
CLNA_IN
4
MAX2538
18
IFO+
17
V
CC
GLNA_IN
6
÷2
16
LO_OUT
15
12
BIAS
13
PLL
14
LO_IN
BUFFEN
Pin Configurations continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
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.
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