应用领域：通信广电

方案类型：成品

主控芯片：ADF7020

方案概述

SHK7020-RF模块是基于ADI公司的高性能收发芯片ADF7020为核心开发的一款高灵敏度、低功耗、易集成的模块产品。主要功能如下：

● 工作频率范围：

SHK7020-RF-01 --- 支持902~928MHz,

SHK7020-RF-02 --- 支持862~870MHz;

● 电压范围：

VCC: 工作范围3.0~3.6V,典型值3.3V;

VBATT_PA:工作范围 3.2~4.2V，极限值小于5V。

● 数据速率：

0.15kbps ~200kbps, FSK调制,

0.15kbps ~64kbps, ASK调制;

● 可配置的输出发射功率

0dBm~26dBm,Delta Step=+0.3dBm;

● 接收灵敏度

-119dBm 在1kbps,FSK,

-112dBm 在9.6kbps,FSK,

-106.5dBm 在9.6kbps,ASK,

● 集成了发射接收开关，单端射频输入输出。

ADF7020(ISM频段收发器IC)

产品详情

ADF7020是一款低功耗、低中频收发器，在免执照ISM频段433 MHz、868 MHz和915 MHz工作。它适合满足欧洲ETSI EN-300-220或北美FCC Part 15.247和15.249监管标准的电路应用。该器件采用2.3 V至3.6V电源供电，输出功率可在-16 dBm至+13 dBm范围内以0.3 dBm的步长精度进行编程。接收机灵敏度为-117.5 dBm(1 kb/s、FSK模式)或-110.5 dBm(9.6 kb/s)。功耗在接收模式下为20 mA，在发射模式下为30 mA(+10 dBm输出)。

其它特性包括片内VCO(电压控制振荡器)、小数N分频PLL(锁相环)、片内7位ADC(模数转换器)、数字接收信号强度指示(RSSI)、温度传感器和待申请专利的全自动AFC环路。因此ADF7020可以采用容差较低的晶振工作。掉电模式下的漏电流小于1 μA。

优势和特点

工作频段：433 MHz至464 MHz和862 MHz至928 MHz

只需很少的外部器件便可实现完整的收发器解决方案，无需TR开关

支持的数据速率：0.3至200 kb/s(FSK模式)，0.3至75 kb/s(ASK模式)

采用2.3 V至3.6 V电源供电，输出功率可在-16 dBm至+13 dBm范围内以0.3 dBm的步长精度进行编程

高接收机灵敏度(1 kb/s时为-117.5 dBm)和高可编程输出功率(+13dBm)使得链路余量极为出色

ADF7020

Alternative Parts

ADF7023 : High Performance, Low Power, ISM Band FSK/GFSK/OOK/MSK/GMSK Transceiver IC

Features and Benefits

Operates in the frequency bands: 433 to 464MHz and 862 to 928MHz

Implements complete transceiver solutions with few external components. No TR switch required.

Supports data rates of 0.3 to 200 kbits/s in FSK mode and 0.3 to 75 kbits/s in ASK mode

Operates on a 2.3V to 3.6V power supply with programmable output power from -16 to +13dBm in 0.3dBm steps

High Receiver Sensitivity, -117.5dBm at 1kbit/s, and high programmable output power, +13dBm, gives superiorlink margin.

Product Details

The ADF7020 is a low power, low-IF transceiver designed for operation in the license-free ISM bands at 433MHz, 868MHz and 915MHz. It is suitable for circuit applications that meet either the European ETSI EN-300-220 or the North American FCC, Part 15.247 and 15.249 regulatory standards. It operates from a 2.3 V to 3.6V power supply with programmable output power from -16 to +13dBm in 0.3dBm steps. Its receiver sensitivity is -117.5dBm at 1kbits/s in FSK mode or -110.5dBm at 9.6kbits/s. Power consumption is 20mA in receive mode and 30mA in transmit mode (+10dBm output).

Other features include on-chip VCO (voltage controlled oscillator), Fractional-N PLL, on-chip 7-bit ADC (analog-to-digital converter), digital received signal strength indication (RSSI), temperature sensor and a patent pending fully automatic AFC loop. This allows the ADF7020 to be used with lower tolerance crystals. Its leakage current is < 1uA in power down mode.