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MAX7057ASE+

更新时间： 2024-09-26 20:09:19
品牌 Logo 应用领域
美信 - MAXIM 电信光电二极管电信集成电路
页数 文件大小 规格书
20页 1733K
描述
Telecom Circuit, 1-Func, CMOS, PDSO16, LEAD FREE, SOP-16

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中文翻译

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MAX7057ASE+ 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：SOIC
包装说明：SOP, SOP16,.25针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：8.6
JESD-30 代码：R-PDSO-G16长度：9.9 mm
湿度敏感等级：1功能数量：1
端子数量：16最高工作温度：125 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP16,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：NOT SPECIFIED电源：2.7 V
认证状态：Not Qualified座面最大高度：1.75 mm
子类别：Other Telecom ICs最大压摆率：0.0237 mA
标称供电电压：2.7 V表面贴装：YES
技术：CMOS电信集成电路类型：TELECOM CIRCUIT
温度等级：AUTOMOTIVE端子面层：NOT SPECIFIED
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3.9 mmBase Number Matches：1

MAX7057ASE+ 数据手册

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EVALUATION KIT AVAILABLE  
MAX7057  
300MHz to 450MHz Frequency-Programmable  
ASK/FSK Transmitter  
General Description  
Features  
The MAX7057 frequency-programmable UHF transmitter  
is designed to transmit ASK/FSK data at a wide range  
of frequencies from 300MHz to 450MHz. The MAX7057  
has internal tuning capacitors at the output of the power  
amplifier that are programmable for matching to an  
antenna or load. This allows the user to change to a new  
frequency and match the antenna at the new frequency  
simultaneously. The MAX7057 transmits at a data rate up  
to 100kbps nonreturn-to-zero (NRZ) (50kbps Manchester  
coded). Typical transmitted power into a 50Ω load is  
+9.2dBm with a +2.7V supply. The device operates from  
+2.1V to +3.6V and typically draws under 12.5mA of  
current in FSK mode (8.5mA in ASK mode) when the  
antenna-matching network is designed to operate over  
the 315MHz to 433.92MHz frequency range. For narrower  
operating frequency ranges, the matching network can be  
redesigned to improve efficiency. The standby current is  
less than 1µA at room temperature.  
● Programmable Frequency Operation with Single  
Crystal  
● Internal Variable Capacitor for Antenna Tuning with  
Single-Matching Network  
● 100kbps Data Rate (NRZ)  
● +2.1V to +3.6V Single-Supply Operation  
● < 12.5mA (FSK), < 8.5mA (ASK) DC Current Drain  
● < 1µA Standby Current  
● ASK/FSK Modulation  
● 47% Carrier Tuning Range Using One Crystal  
Ordering Information  
PART  
TEMP RANGE  
PIN-PACKAGE  
MAX7057ASE+  
-40°C to +125°C  
16 SO  
+Denotes a lead(Pb)-free/RoHs-compliant package.  
The MAX7057 reference frequency from the crystal oscil-  
lator is multiplied by a fully integrated fractional-N phase-  
locked loop (PLL). The multiplying factor of the PLL is set  
by a 16-bit number, with 4 bits for integer and 12 bits for  
fraction; the multiplying factor can be anywhere between  
19 and 28. The 12-bit fraction in the synthesizer sets a  
tuning resolution equal to the reference frequency divided  
by 4096; frequency deviation can be set as low as ±2kHz  
and as high as ±100kHz. The fractional-N synthesizer  
eliminates the problems associated with oscillator-pull-  
ing FSK signal generation. The MAX7057 has a serial  
peripheral interface (SPI) for selecting all the necessary  
settings.  
Pin Configuration  
TOP VIEW  
+
16  
15  
CS  
SDI  
1
2
3
4
5
DVDD  
GPO  
MAX7057  
SCLK  
DGND  
14  
PAGND  
PAOUT  
ROUT  
PAVDD  
AVDD  
13 DIN  
ENABLE  
12  
11  
6
7
8
AGND  
The MAX7057 is available in a 16-pin SO package and  
is specified to operate in the -40°C to +125°C automotive  
temperature range.  
10 XTAL1  
XTAL2  
9
Applications  
● RF Remote Controls  
● Garage Door Openers  
● Home Automation  
● Wireless Sensors  
● Wireless Game Consoles  
● Wireless Computer  
Peripherals  
Typical Application Circuit and Functional Diagram appear  
at end of data sheet.  
● Security Systems  
19-4093; Rev 2; 7/14  
1234567...20

中文翻译

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