HMC474SC70ETR RF/IF and RFID

Series:	--
Packaging:	Cut Tape (CT)
Part Status:	Obsolete
Frequency:	0Hz ~ 6GHz
P1dB:	8dBm
Gain:	15dB
Noise Figure:	3.9dB
RF Type:	WiMAX / WiBro
Voltage - Supply:	3 V ~ 10 V
Current - Supply:	25mA
Test Frequency:	--
Package / Case:	6-VSSOP, SC-88, SOT-363
Supplier Device Package:	SC-70-6
Base Part Number:	HMC474

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Introduction to RF AmplifiersRadio Frequency (RF) amplifiers are devices that take a low-level RF signal and amplify it to a higher level for transmission. They are essential components in radio circuits as they are used to increase the strength of a signal, enabling a greater range of communication. The most common uses of RF amplifiers include wireless communication, radio receivers, and antenna feedlines.HMC474SC70ETR Application Field and Working Principle The HMC474SC70ETR is a low-noise, high-gain, ultra-wideband amplifier IC. This IC is designed for use in a variety of applications including antenna gain chain, EW/ECM jammers, satellite communication receivers, and wideband IF amplification.The HMC474SC70ETR has a gain of 27 dB with low noise figure and flat response over the frequency range of 20 MHz-4.2 GHz. The amplifier features a high linearity performance with an IP3 of 29 dBm and a gain flatness of +.6 dB. The IC also has excellent pulse handling characteristics with the output voltage swing of up to 5 V.The HMC474SC70ETR has two amplifying stages and is based on the differential amplifier architecture. The amplifier is composed of two differential amplifier units configured in an inverting configuration. The first stage operates differently when compared to other differential amplifier circuits; in this case, the input current flows through the differential pair transistors in both directions and the output signal is taken directly from the common node between the two transistors. The first stage is designed as differential pair to cancel out any noise signals that enter the amplifier.The second stage of the amplifier is a class A, push-pull voltage amplifier. This voltage amplifier is configured in an inverting configuration, with the amplifier output taken as the difference in voltage between the two transistors. This design ensures that the output signal maintains the phase and amplitude response of the input signal.The HMC474SC70ETR has a nominal supply voltage of +5V and has an efficiency of 35%, which means that it draws less power than most other amplifiers in its class. The HMC474SC70ETR is designed to provide superior performance; it has a low input noise figure, high gain, wide frequency range, and high linearity performance. The amplifier is suitable for a variety of applications such as antenna gain chain, EW/ECM jammers, satellite communication receivers, and wideband IF amplification.

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