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Avago Technologies has announced two new economical, easy to use general-purpose InGaP Hetero-Junction Bipolar Transistor (HBT) MMIC gain block amplifiers for use in a variety of wireless applications. The AVT-51663/53663 gain blocks, which operate within the DC to 6000 MHz frequency band, can be used as either a broadband gain block or driver amplifier. These gain blocks target designers of cellular infrastructure applications, but can also be used in a variety of other wireless applications such as base stations, WiMAX, WLAN, CATV, satellite TV and set-top boxes.
The gain block amplifiers, which are internally matched to 50 Ω, were designed in Darlington configuration housed in an industry standard six-lead SOT-363 surface-mount plastic package. The Darlington feedback structure provides inherent broad bandwidth performance resulting in a useful operating frequency range of up to 6 GHz making the AVT-51663/53663 suitable for small-signal gain cascades or IF amplification. Moreover, these new gain blocks feature easy installation and only require DC blocking capacitors, RF choke, biasing resistors and bypass capacitors for operation. Additionally, no additional RF matching components are required to achieve broadband performance.
These new gain block amplifiers were developed using advanced InGaP HBT technology that offers state-of-the-art reliability, temperature stability and consistent performance. At a typical operating condition of 5 V and 37 mA, the AVT-51663 delivers performance of 19.0 dB gain, 24 dBm output third-order intercept point (OIP3) and 12.5 dBm output power at 1 dB gain compression (P1dBm) and 3.2 dBm noise figure at 2000 MHz. The AVT-53663 operates at 5 V and 48 mA to deliver a performance of 19.5 dB gain, 5 dBm OIP3, 15 dBm P1dB and 3.2 dB noise figure at 2000 MHz.
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