The SKY5A3043 Sky5® supports 2G/3G/4G/5G mobile devices and operates efficiently in 3G/4G/5G modes. The device consists of a low-band 3G/4G/5G PA block, low band and high-band 2G PA blocks, a silicon controller containing the MIPI RFFE interface, RF band switches, antenna switches, a bi-directional coupler, integrated filters for Bands B8, B26, and B28a and low noise amplifier (LNA). Extremely low leakage current maximizes device standby time. The IC die and passive components are mounted on a multi-layer laminate substrate.
The SKY5A3043 is optimized for LTE Advanced which utilizes Carrier Aggregation (CA) for higher data rates. The combined filtering, RF matching and TRx switching internal to the FEM optimizes performance for popular Downlink (DL) CA band combinations in a compact and low-cost solution. The device contains the necessary components between the antenna and RFIC transceiver and is optimized to provide superior Rx sensitivity and Tx efficiency.
Selecting the linear-GMSK operation standard disables VRAMP input, so all PA biasing depends only on MIPI mode selection. The transmitted envelope is then a linear function of RF input.
Selecting VRAMP-enabled operation, the PA controller provides VRAMP control of the GMSK envelope and reduces sensitivity to input drive, temperature, power supply, and process variations. A Collector Voltage Amplitude Controller (COVAC) minimizes output power variation into mismatch.
In EDGE linear mode, VRAMP voltage and MIPI-based bias settings jointly optimize PA linearity and efficiency.
Exceptional RF coexistence planning and system techniques are employed to minimize Rx de-sensitizing ("de-sense").
| Skyworks Solutions, Inc. | |
|---|---|
| Product Category | RF Amplifiers |
| Product Number | SKY5A3043 |
| Product Name | Sky5® Low Band Tx-Rx Front-End Module for 3G/ 4G/5G Applications with Low Band/High Band 2G |
| Applications | Mobile / Wireless Systems |
