AD8302-EVAL開(kāi)發(fā)板套件編程器的射頻評(píng)估開(kāi)發(fā)套件開(kāi)發(fā)板規(guī)格書PDF中文資料

AD8302-EVAL屬于開(kāi)發(fā)板套件編程器的射頻評(píng)估開(kāi)發(fā)套件開(kāi)發(fā)板。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD8302-EVAL射頻評(píng)估和開(kāi)發(fā)套件，開(kāi)發(fā)板本系列中的產(chǎn)品適用于在已知實(shí)施環(huán)境中，提供能訪問(wèn)射頻相關(guān)器件的功能或者有助于訪問(wèn)該功能。所含的焦點(diǎn)產(chǎn)品范圍從射頻信號(hào)鏈元器件（如放大器和檢測(cè)器）到模塊化收發(fā)器，以及不直接包含焦點(diǎn)產(chǎn)品的適配器硬件，但此類硬件可供方便地訪問(wèn)用戶單獨(dú)提供的特定射頻產(chǎn)品或系列。

PRODUCT DESCRIPTION

The AD8302 is a fully integrated system for measuring gain/loss and phase in numerous receive, transmit, and instrumentation applications. It requires few external components and a single supply of 2.7 V–5.5 V. The ac-coupled input signals can range from –60 dBm to 0 dBm in a 50 ? system, from low frequencies up to 2.7 GHz. The outputs provide an accurate measurement of either gain or loss over a ±30 dB range scaled to 30 mV/dB, and of phase over a 0°–180° range scaled to 10 mV/degree. Both subsystems have an output bandwidth of 30 MHz, which may optionally be reduced by the addition of external filter capacitors. The AD8302 can be used in controller mode to force the gain and phase of a signal chain toward predetermined setpoints.

The AD8302 comprises a closely matched pair of demodulating logarithmic amplifiers, each having a 60 dB measurement range. By taking the difference of their outputs, a measurement of the magnitude ratio or gain between the two input signals is available. These signals may even be at different frequencies, allowing the measurement of conversion gain or loss. The AD8302 may be used to determine absolute signal level by applying the unknown signal to one input and a calibrated ac reference signal to the other. With the output stage feedback connection disabled, a comparator may be realized, using the setpoint pins MSET and PSET to program the thresholds.

FEATURES

Measures Gain/Loss and Phase up to 2.7 GHz

Dual Demodulating Log Amps and Phase Detector

Input Range –60 dBm to 0 dBm in a 50 Ω System

Accurate Gain Measurement Scaling (30 mV/dB)

Typical Nonlinearity < 0.5 dB

Accurate Phase Measurement Scaling (10 mV/Degree)

Typical Nonlinearity < 1 Degree

Measurement/Controller/Level Comparator Modes

Operates from Supply Voltages of 2.7 V–5.5 V

Stable 1.8 V Reference Voltage Output

Small Signal Envelope Bandwidth from DC to 30 MHz

APPLICATIONS

RF/IF PA Linearization

Precise RF Power Control

Remote System Monitoring and Diagnostics

Return Loss/VSWR Measurements

Log Ratio Function for AC Signals