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| 型号： | MAX7031MATJ50+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC TXRX FSK W/PLL 32TQFN-EP |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 频率： | 315MHz |
| 数据传输率 - 最大： | 33kbps |
| 调制或协议： | FSK |
| 应用： | 车库门开启器，遥控，双向 RKE |
| 功率 - 输出： | 10dBm |
| 灵敏度： | -110dBm |
| 电源电压： | 2.1 V ~ 3.6 V，4.5 V ~ 5.5 V |
| 电流 - 接收： | 6.7mA |
| 电流 - 传输： | 12.5mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
19-3707; Rev 3; 11/10
Low-Cost, 308MHz, 315MHz, and 433.92MHz
FSK Transceiver with Fractional-N PLL
Consult factory for availability.
General Description
The MAX7031 crystal-based, fractional-N transceiver is
designed to transmit and receive FSK data at factory-
preset carrier frequencies of 308MHz ? , 315MHz, or
433.92MHz with data rates up to 33kbps (Manchester
encoded) or 66kbps (NRZ encoded). This device gen-
erates a typical output power of +10dBm into a 50 ?
load, and exhibits typical sensitivity of -110dBm. The
MAX7031 features separate transmit and receive pins
(PAOUT and LNAIN) and provides an internal RF switch
that can be used to connect the transmit and receive
pins to a common antenna.
The MAX7031 transmit frequency is generated by a 16-
bit, fractional-N, phase-locked loop (PLL), while the
receiver’s local oscillator (LO) is generated by an inte-
ger-N PLL. This hybrid architecture eliminates the need
for separate transmit and receive crystal reference
oscillators because the fractional-N PLL is preset to be
10.7MHz above the receive LO. Retaining the fixed-N
PLL for the receiver avoids the higher current-drain
requirements of a fractional-N PLL and keeps the
receiver current drain as low as possible.
The fractional-N architecture of the MAX7031 transmit
PLL allows the transmit FSK signal to be preset for
exact frequency deviations, and completely eliminates
the problems associated with oscillator-pulling FSK sig-
nal generation. All frequency-generation components
are integrated on-chip, and only a crystal, a 10.7MHz IF
filter, and a few discrete components are required to
implement a complete antenna/digital data solution.
The MAX7031 is available in a small, 5mm x 5mm, 32-
pin, thin QFN package, and is specified to operate in
the automotive -40°C to +125°C temperature range.
?
Features
o +2.1V to +3.6V or +4.5V to +5.5V Single-Supply
Operation
o Single-Crystal Transceiver
o Factory-Preset Frequency (No Serial Interface
Required)
o FSK Modulation
o Factory-Preset FSK Frequency Deviation
o +10dBm Output Power into 50? Load
o Integrated TX/RX Switch
o Integrated Transmit and Receive PLL, VCO, and
Loop Filter
o > 45dB Image Rejection
o Typical RF Sensitivity*: -110dBm
o Selectable IF Bandwidth with External Filter
o RSSI Output with High Dynamic Range
o < 12.5mA Transmit-Mode Current
o < 6.7mA Receive-Mode Current
o < 800nA Shutdown Current
o Fast-On Startup Feature, < 250 μ s
o Small, 32-Pin, Thin QFN Package
*0.2% BER, 4kbps Manchester-encoded data, 280kHz IF BW
Ordering Information
Applications
2-Way Remote Keyless Entry
PART
MAX7031_ATJ__+
TEMP RANGE
-40°C to +125°C
PIN-PACKAGE
32 Thin QFN-EP**
Security Systems
Home Automation
Remote Controls
+Denotes a lead(Pb)-free/RoHs-compliant package.
**EP = Exposed pad.
Note: The MAX7031 is available with factory-preset operating
frequencies. See the Selector Guide for complete part num-
bers.
Remote Sensing
Smoke Alarms
Garage-Door Openers
Local Telemetry Systems
Pin Configuration, Selector Guide, Typical Application
Circuit, and Functional Diagram appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
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PDF描述 |
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| MAX7032EVSYS-433 | EVAL KIT MAX7032 |
| MAX7033ETJ+T | IC RX 315MHZ/433MHZ ASK 32TQFN |
| MAX7033EVKIT-315 | EVAL KIT FOR MAX7033 315MHZ |
| MAX7034EVKIT-433+ | EVAL KIT MAX7034 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX7032 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost, Crystal-Based, Programmable, ASK/FSK Transceiver with Fractional-N PLL |
| MAX7032_09 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost, Crystal-Based, Programmable, ASK/FSK Transceiver with Fractional-N PLL |
| MAX7032_10 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost, Crystal-Based, Programmable, ASK/FSK Transceiver with Fractional-N PLL |
| MAX7032ATJ | 制造商:Maxim Integrated Products 功能描述:LOW-COST,CRYSTAL-BASED,308MHZ,315MHZ,&433.92M - Rail/Tube |
| MAX7032ATJ+ | 功能描述:射频收发器 Crystal-Based Prog ASK/FSK Transceiver RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray |
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