SKY77528-51

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SKY77528-51 is a radio frequency (RF) front end module, consisting of a low noise amplifier (LNA) and a power amplifier (PA), designed to cover frequency ranges from 1.7MHz to 3GHz. It supports multiple cellular bands such as GSM, EDGE, WCDMA, HSPA+, LTE, and CDMA. The device includes an antenna switch which works cumulatively with both the LNA and PA, allowing it to be used with a single antenna for transmitter and receiver functions. The module is packaged in an 8-pin green PKG 1.2×1.8×0.449, making it both small and easily combined other components in a design.

The SKY77528-51 is designed to provide robust performance for a range of wireless applications. Such application categories include low and mid-range cellular phone communications, remote control devices, image transmission, video surveillance, wireless local area networks, and satellite TV receiver systems. The integrated antenna switch, low power consumption, and small package size, make the SKY77528-51 particularly attractive for low power applications. Additionally, the SKY77528-51 supports a few of the industry standard voltage supply options, as well as an enable/disable feature, making it more attractive to OEMs.

The SKY77528-51 provides several features and benefits including high gain performance with low noise figures, low current consumption, and wide frequency range. The LNA provides a gain range from as low as 20 dB up to 28 dB, and a noise figure as low as 0.6 dB. The PA provides a gain from 17 dB up to 29 dB. The integrated antenna switch has an insertion loss that varies from 0.2 to 0.35 dB over the frequency range.

The low noise amplifier (LNA) and power amplifier (PA) incorporated in the SKY77528-51 are designed to work in tandem using an integrated antenna switch to provide improved signal reception and transmit power. The antenna switch is activated when either the LNA or the PA is enabled. This effective integration of both the LNA and PA, along with the antenna switch, allows the device to be operated from a single antenna with high performance. When the antenna switch is activated, the switch bias voltage is routed through the PA enable switch, effectively connecting the LNA’s input port to the antenna. The LNA can then amplify the signal and route it to the PA, where it is amplified further. The amplified signal is then sent to the antenna, where it can be transmitted.

The SKY77528-51 is designed to provide an easy to use solution for low-power and wide-frequency applications. It meets the demands of OEMs in consumer electronics such as mobile handsets and image transmission devices. With high gain, low noise figures, and wide frequency range, the SKY77528-51 is suitable for a variety of wireless applications.

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