HMC984LP4ETR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Frequency:	0Hz ~ 350MHz
RF Type:	--
Input Range:	--
Accuracy:	--
Voltage - Supply:	5V
Current - Supply:	124mA
Package / Case:	24-VFQFN Exposed Pad
Supplier Device Package:	24-QFN (4x4)
Base Part Number:	HMC984

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RF Detectors

The HMC984LP4ETR from Avago Technologies is an RF detector designed for a wide range of applications, including wireless communication systems such as cellular phones, base stations, and wireless LANs. This detector is commonly employed in radio frequency (RF) signal detection applications due to its low current consumption, high detect accuracy and frequency band selection capability. This article will discuss the application field and working principle of the HMC984LP4ETR RF detector.

Application Field

The HMC984LP4ETR is a multi-stage detector with four frequency bands that enables wireless communication systems to detect radio frequency signals and accurately convert them into electrical magnitude. The device has a frequency range of 2.4 to 27 GHz, a low noise, high linearity, and high rejection of unwanted spurious signals.The HMC984LP4ETR is suitable for a range of applications, such as portable wireless systems, power amplifiers, signal sniffing, Automatic Level Control (ALC) for signal linearity, and high linearity along with gain. It is also suitable for applications such as MIMO and WIMAX broadcasting, satellite, and radar systems.The HMC984LP4ETR is a low-noise RF detector that offers low power consumption and low insertion loss. The device provides high signal accuracy and flexibility for system design. In addition, the device features high input signals with low distortion due to its exceptional linearity performance.

Working Principle

The HMC984LP4ETR is a multi-stage detector that takes advantage of the on-chip, two-stage amplifier. The device features a wide dynamic scale for the gain and output ports. The on-chip amplifier provides a high gain and better linearity that helps to improve the detection accuracy of the device. The first stage of the amplifier is used as the signal processing stage of the device. This stage converts the input signal into voltage. The second stage of the amplifier is used as the output stage of the device and it converts the voltage to a digital output representing the magnitude of the input signal.The HMC984LP4ETR uses a proprietary frequency band selection method to differentiate between various frequency signals and enable more accurate detection. The frequency band selection is done using a switched capacitor network. The device uses two values of the capacitor bank to select the desired frequency range. The first value is the total capacitance of the bank and the second is the amount of capacitance that needs to be switched in to tune the bandwidth of the device. By tweaking the two values, the frequency band can be altered on the device.

Conclusion

The HMC984LP4ETR is an RF detector based on a two-stage amplifier and a switched capacitor network. It is suitable for a range of applications, such as power amplifiers, signal sniffing, ALC and high linearity and gain. It is able to detect radio frequency signals accurately and efficiently, with low insertion loss and low current consumption. With its proprietary frequency band selection method, this device is able to differentiate between various frequency signals, allowing for more accurate detection.

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