●Product Details
●The ADL5506 is a complete, low cost subsystem for the measurement of RF signals in the 30 MHz to 4.5 GHz frequency range, with a typical dynamic range of 45 dB, intended for use in a wide variety of wireless terminal devices. It provides a wider dynamic range and better accuracy than is possible using discrete diode detectors. In particular, its temperature stability is excellent over −40°C to +85°C.
●Its high sensitivity allows measurement of low power levels, thus reducing the amount of power that needs to be coupled to the detector. It is essentially a voltage responding device, with a typical dynamic range of 45 dB.
●For convenience, the signal is internally ac-coupled, using a 5 pF capacitor and a broadband 50 Ω match, with an external shunt resistor of 52 Ω. This high-pass coupling, with a corner at approximately 19 MHz, determines the lowest operating frequency. Therefore, the source can be dc grounded.
●The ADL5506 output increases from approximately 0.14 V to a little over 1 V as the input signal level increases from 1.25 mV rms (−45 dBm) to 224 mV rms (0 dBm). The output is proportional to the logarithm of the input power level; that is, the reading is presented directly in decibels and is scaled about 18 mV/dB at 900 MHz. A capacitor can be connected between the VLOG pin and the CFLT pin when it is desirable to increase the time interval over which averaging of the input waveform occurs.
●The ADL5506 is available in a 6-ball WLCSP and consumes 3.8 mA from a 3.0 V supply. When powered down, the typical disable supply current is <1 μA.
●Applications
● RSSI and TSSI for wireless terminal devices
● RF transmitter or receiver power measurement
●### Features and Benefits
● Complete RF detector function
● Typical dynamic range: 45 dB
● Frequency range from 30 MHz to 4.5 GHz
● Excellent temperature stability
● Stable linear in decibel response
● Power on/off response time: 65 ns/145 ns (rise/fall)
● −5 dBm input power applied
● Operates from −40°C to +85°C
● Low power: 3.8 mA at 3.0 V
● Power supply voltage range from 2.5 V to 5.5 V
● Disable current <1 μA
Part 3D Model
