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MAX2741

更新时间： 2024-01-26 14:45:40
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美信 - MAXIM 接收机全球定位系统
页数 文件大小 规格书
12页 238K
描述
Integrated L1-Band GPS Receiver

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MAX2741 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：QFN
包装说明：HVQCCN,针数：28
Reach Compliance Code：compliantECCN代码：7A994
HTS代码：8542.39.00.01风险等级：5.8
Samacsys Description：Integrated L1-Band GPS Receiver有源滤波器类型：SWITCHED CAPACITOR FILTER
JESD-30 代码：S-XQCC-N28JESD-609代码：e3
长度：5 mm湿度敏感等级：1
功能数量：1端子数量：28
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：UNSPECIFIED封装代码：HVQCCN
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260极和零点：3 AND 0
认证状态：Not Qualified响应：BANDPASS
座面最大高度：0.8 mm最大供电电压 (Vsup)：3 V
最小供电电压 (Vsup)：2.7 V标称供电电压 (Vsup)：2.75 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：TIN端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED传递特性：BESSEL
宽度：5 mm

MAX2741 数据手册

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19-3559; Rev 0; 1/05  
Integrated L1-Band GPS Receiver  
General Description  
Features  
The MAX2741 L1-band GPS receiver IC offers a high-  
performance, compact solution for mobile handsets,  
PDAs, and automotive applications. Total voltage gain  
of 80dB and a 4.7dB cascaded noise figure can pro-  
vide receiver sensitivity for applications requiring  
-185dBW for indoor tracking solutions.  
♦ Supports All Popular Handset Reference  
Frequencies Up to 26MHz  
♦ 4.7dB Cascaded Noise Figure  
♦ 80dB Cascaded Gain  
♦ Tolerates -90dBm In-Band Jammer  
This dual-conversion receiver downconverts the  
1575.42MHz GPS signal to a 37.38MHz first IF, and then  
a 3.78MHz second IF. An integrated 2- or 3-bit ADC (1-  
bit SIGN, 1- or 2-bit MAG selectable) samples the sec-  
ond IF and outputs the digitized signals to the baseband  
processor.  
♦ Tolerates +13dBm CDMA Out-of-Band Jammer at  
Device Input  
♦ Integrated Synthesizer and VCO  
♦ Integrated 2- or 3-Bit ADC  
♦ 50dB IF AGC Range  
The integrated synthesizer offers the flexibility in fre-  
quency planning to allow a single board design to be  
employed for reference frequencies from 2MHz to  
26MHz. The integrated reference oscillator allows either  
TCXO or crystal operation.  
♦ Small 28-Pin Thin QFN Package  
♦ SPI™ Control Interface  
♦ Clock Output for Baseband Processor  
The receiver runs from a 2.7V to 3.0V supply, and draws  
only 30mA when active. It is offered in a 28-pin thin QFN  
package, and is specified for -40°C to +85°C at 3V.  
SPI is a trademark of Motorola, Inc.  
Ordering Information  
PART  
TEMP RANGE  
PIN-PACKAGE  
MAX2741ETI  
-40°C to +85°C  
28 Thin QFN  
x
Pin Configuration/  
Functional Diagram  
Applications  
In-Vehicle Navigation Systems (IVNS)  
Telematics (Vehicle and Asset Tracking,  
Inventory Management)  
28  
27  
26  
25  
24  
23  
22  
Automotive Security  
MAX2741  
V
1
1
2
3
4
5
6
7
21 SDO  
20 N.C.  
CC  
Emergency Response Systems  
Emergency Road-Side Assistance  
Location-Based Services/Internet (PDAs)  
Digital Cameras/Camcorders  
N.C.  
33.6MHz  
LNA  
RFIN  
19  
V 5  
CC  
90  
0
/96  
1612.8MHz  
/2  
V
2
CC  
3
CC  
4
CC  
18 GPSIF0  
17 GPSIF1  
16 GPSIF2  
15 GPSCLK  
/16128  
ADC  
Recreational Handhelds/Walkie-Talkies  
Geographical Information Systems (GIS)  
Consumer Electronics (Location-Based Games)  
Precision Timing  
P.D.  
200kHz  
V
V
VCO  
3225.6MHz  
/R  
/192  
MUX  
16.8MHz  
REF  
OSC  
SPI INTERFACE  
10  
GND  
8
9
11  
12  
13  
14  
________________________________________________________________ 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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