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RF 측정 모듈 -LT5581
(RF METER 3 CLICK)
개요
- 본 제품은 RF 측정 모듈 -LT5581 입니다.
- 저전력 RMS 파워 검출기 LT5581를 기반으로 디자인된 제품으로 RF 파워 정보를 수집하고 분석 할수 있게 하여 주는제품입니다.
- 2Ghz에서 2.6Ghz까지의 범위의 RF 파워를 측정이 가능합니다.
- dB형태의 RF 입력 신호에 따라 선형으로 DC 전압을 출력합니다.
- 3.3V/5V 시스템과 사용이 가능합니다.
특징
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HOW DOES IT WORK?
RF Meter 3 Click as its foundation uses the LT5581, RMS power detector with a 40dB dynamic range from Analog Devices. Users can use an RF power meter like this one to measure and document pulsed RF signals, noise-like signals, and pseudorandom signals. The RMS detector uses a proprietary technique to measure the RF power from 2GHz up to 2.6GHz accurately. Moreover, the LT5581 offers exceptional accuracy over its operating temperature range of -40°C to 85°C.
Its RMS measurement capability provides accurate RF power readings to within ±0.2dB regardless of waveforms with high crest-factor modulated content, multi-carrier or multitone. The LT5581 combines a proprietary high-speed power measurement subsystem with an internal 150kHz low pass averaging filter and an output voltage buffer in a completely integrated solution to achieve an accurate average power measurement of the high crest factor modulated RF signals. The resulting output voltage is directly proportional to the average RF input power in dBm.
This Click board™ uses two mikroBUS™ pins for direct control. The Enable pin, labeled as EN and routed to the CS pin of the mikroBUS™ socket, optimizes power consumption and is used for power ON/OFF purposes (Shutdown feature). When its Enable input pin is pulled low, the LT5581 draws a typical shutdown current of 0.2uA and a maximum of 6uA. As mentioned before, the resulting output voltage of the LT5581 is sent directly to an analog pin of the mikroBUS™ socket labeled as AN for MCU to read further and analyze RF signal data.
This Click board™ can operate with both 3.3V and 5V logic voltage levels selected via the VCC SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to use the communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
SPECIFICATIONS
Type RF meter Applications Can be used for precision power measurement and control for various RF standards On-board modules LT5581 - RMS power detector with a 40dB dynamic range from Analog Devices Key Features Accurate power measurement of high crest factor waveforms, 40dB log linear dynamic range, exceptional accuracy over temperature, low power consumption, log-linear DC output vs input RF power in dBm, and more Interface Analog Compatibility mikroBUS Click board size S (28.6 x 25.4 mm) Input Voltage 3.3V or 5V
