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参数资料
型号： MAX2538ETI+T
厂商： Maxim Integrated
文件页数： 1/27页
文件大小： 0K
描述： IC LNA/MIXER CELL/PCS/GPS 28TQFN
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 2,500
RF 型： 手机，GPS，PCS
混频器数目： 3
增益： 16dB
噪音数据： 9dB
电流 - 电源： 32mA
电源电压： 2.7 V ~ 3.3 V
包装： 带卷 (TR)
封装/外壳： 28-WFQFN 裸露焊盘
供应商设备封装： 28-TQFN-EP（5x5）
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
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)
Ordering Information
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-
PART
MAX2351 ETI
MAX2354 ETI
MAX2358 ETI
MAX2359 ETI
MAX2530 ETI
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
PIN-PACKAGE
28 Thin QFN-EP*
28 Thin QFN-EP*
28 Thin QFN-EP*
28 Thin QFN-EP*
28 Thin QFN-EP*
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.
Applications
MAX2531 ETI -40 ° C to +85 ° C
MAX2537 ETI -40 ° C to +85 ° C
MAX2538 ETI -40 ° C to +85 ° C
* EP = exposed pad.
28 Thin QFN-EP*
28 Thin QFN-EP*
28 Thin QFN-EP*
Triple-Band, Quadruple-Mode PCS/Cellular Handsets
Single-Band Handsets
E911 and Traveler Assistance Through GPS
Pin Configurations
GSM/TDMA Cellular Phones
28
27
26
25
24
23
22
PART
CELL PCS GPS
Selector Guide
CELL VCO
PCS VCO
CLNA_OUT
PLNA_IN
1
2
21
20
GIF-
GIF+
MAX2351
?
?
—
Input
Internal doubler
GND
3
19
IFO-
MAX2354
MAX2358
MAX2359
?
?
—
—
?
?
—
—
—
Input
Internal divider
—
—
Input
Input
CLNA_IN
SHDN
4
5
MAX2538
18
17
IFO+
V CC
MAX2530
MAX2531
MAX2537
?
?
?
?
?
—
?
?
?
Input
Input
Internal divider
Input
Internal doubler
Input
GLNA_IN
G1
6
7
÷ 1.5
÷ 2
16
15
LO_OUT
BUFFEN
MAX2538
?
?
?
Internal divider
Input
8
9
10
11
12
13
14
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
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.
1
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