RF收發器 Narrow Band Transceiver 433/868/900 MHz
Product Details
The ADF7021 is a low power, highly integrated 2FSK/3FSK/4FSK transceiver. It is designed to operate in the narrow-band, license-free ISM bands and licensed bands in the 80 MHz to 650 MHz and 862 MHz to 940 MHz frequency ranges. It has both Gaussian and raised cosine data filtering options to improve spectral efficiency for narrow-band applications.
It is suitable for circuit applications targeted at European ETSI-EN 300-220, the Japanese ARIB STD-T67, the Chinese Short Range Device regulations, and the North American FCC Part 15, Part 90, and Part 95 regulatory standards. A complete transceiver can be built using a small number of external discrete components, making the ADF7021 very suitable for price-sensitive and area-sensitive applications.
The transmit section contains a voltage controlled oscillator VCO and a low noise fractional-N PLL with output resolution of <1 ppm. This frequency-agile PLL allows the ADF7021 to be used in frequency hopping spread spectrum FHSS systems. The VCO operates at twice the fundamental frequency to reduce spurious emissions and frequency pulling problems. The transmitter output power is programmable in 63 steps from −16 dBm to +13 dBm and has an automatic power ramp control to prevent spectral splatter and help meet regulatory standards. The transceiver RF frequency, channel spacing, and modulation are programmable using a simple 3-wire interface. The device operates with a power supply range of 2.3 V to 3.6 V and can be powered down when not in use.
A low IF architecture is used in the receiver 100 kHz, minimizing power consumption and the external component count while avoiding interference problems at low frequencies. The IF filter has programmable bandwidths of 12.5 kHz, 18.75 kHz, and 25 kHz. The ADF7021 supports a wide variety of programmable features including Rx linearity, sensitivity, and IF bandwidth, allowing the user to trade off receiver sensitivity and selectivity against current consumption, depending on the application. The receiver also features a patent-pending automatic frequency control AFC loop with programmable pull-in range, allowing the PLL to track out the frequency error in the incoming signal.
An on-chip ADC provides readback of an integrated tempera¬ture sensor, an external analog input, the battery voltage, and the RSSI signal, which provides savings on an ADC in some applications. The temperature sensor is accurate to ±10°C over the full operating temperature range of −40°C to +85°C. This accuracy can be improved by doing a 1-point calibration at room temperature and storing the result in memory.
### Features and Benefits
频率 80MHz ~ 650MHz, 862MHz ~ 940MHz
输出功率 13 dBm
工作温度Max 85 ℃
工作温度Min -40 ℃
电源电压 2.3V ~ 3.6V
电源电压Max 3.6 V
电源电压Min 2.3 V
安装方式 Surface Mount
引脚数 48
封装 LFCSP EP-48
高度 0.73 mm
封装 LFCSP EP-48
工作温度 -40℃ ~ 85℃
产品生命周期 Active
包装方式 Tape & Reel TR
制造应用 Building Technology, LED General Lighting, Building Control and Automation
RoHS标准 RoHS Compliant
含铅标准 Lead Free
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
ADF7021BCPZ-RL7 ADI 亚德诺 | 当前型号 | 当前型号 |
ADF7021BCPZ 亚德诺 | 完全替代 | ADF7021BCPZ-RL7和ADF7021BCPZ的区别 |
ADF7021BCPZ-RL 亚德诺 | 类似代替 | ADF7021BCPZ-RL7和ADF7021BCPZ-RL的区别 |