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

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

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