SKY77916-11

SkyLiTE™ Tx-Rx Front-End Module for Quad-Band GSM / GPRS / EDGE w/ 14 Linear TRx Switch Ports, Dual-Band TD-SCDMA, and TDD LTE Band 39

SkyLiTE™ is Skyworks’ newest family of LTE devices which consists of highly integrated modules incorporating the amplification, switching, WiFi filtering and coupler functions required to support all major FDD/TDD bands. With the addition of external duplexers, this product family provides OEMs with a scalable and reconfigurable front-end system suitable for markets worldwide.

SKY77916-11 SkyLiTE™ is a key building block for global or five-mode front-end implementation. As a Transmit / Receive Front-End Module (FEM), the SKY77916-11 SkyLiTE™ supports 3G / 4G handsets and operates efficiently in WCDMA, TD-SCDMA, and LTE modes. The module is fully programmable through a Mobile Industry Processor Interface (MIPI®).

By design, this Tx-Rx Front End Module offers a complete transmit VCO-to-Antenna and Antenna-to-receive SAW filter solution for advanced cellular handsets comprising quad-band GSM and linear 2.5G operation. Developed in a compact form factor, it features a very low profile of 0.8 mm (Max.). The SKY77916-11 supports Class 12 General Packet Radio Service (GPRS) and EDGE multi-slot operation, and TD-SCDMA and TDD LTE linear transmission. Fourteen transmit / receive (TRx) ports and an integrated directional coupler enables broadband 3G/4G RF switch-through.

The module consists of a CMOS Power Amplifier (PA) Controller, a low band (LB) PA block to support GSM850/900 bands and a high band (HB) PA block to support DCS1800/PCS1900, TD-SCDMA bands 34/39, and TDD LTE band 39. Also included are RF ports internally matched to 50 ohm impedance loads, Tx harmonic filtering, RF switching, and a directional coupler at the antenna output. The custom low-current PA controller includes the Mobile Industry Processor Interface (MIPI®) and decoder circuitry to control the RF switch.

All RF ports are internally matched to 50 ohm impedance to minimize external components on the phone board. The GaAs fabricated Heterojunction Bipolar Transistor (HBT) PA blocks share common power supply pads to distribute current. Extremely low leakage current of the SKY77916-11 maximizes handset standby time. Fourteen TRx pads and the PA outputs connect to the antenna through a high-linearity, low-loss switch. The TRx ports feature a 0 volts DC offset level that eliminates external blocking capacitors. An integrated directional coupler precludes any external coupler requirements.

The GaAs die and the switch die, the CMOS controller, and passive components are mounted on a multi-layer laminate substrate with the entire assembly encapsulated with plastic overmold.

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Specifications

Product LifecycleLast Time Buy

BandQUAD-Band GSM / GPRS / EDGE
W/ 14 Linear TRX Switch Ports,
Dual-Band TD-SCDMA,
and TDD LTE Band 39

Frequency (MHz)

DescriptionSkyLiTE™ LTE Tx/Rx Front-end Module

PackageMCM, 38-pad

Package (mm)5.5 x 5.3 x 0.8

Features

Small, low profile package: 5.5 mm x 5.3 mm x 0.8 mm Max, 38-pad configuration
Fully programmable MIPI® RFFE control
Fourteen low-insertion-loss TRx ports (five ultra-low loss) with enhanced linearity, for state-of-the-art 4G performance and GPS / WiFi compatibility
Integrated noise suppression notch filter for WiFi coexistence
Built-in IEC-compliant antenna ESD protection
Integrated broadband directional coupler
High Efficiency (inclusive of coupler): 40% GSM850 36% DCS1800, 40% GSM900 36% PCS1900
Wide GMSK input power range: –1 dBm to 6 dBm
Tx-VCO-to-antenna and antenna-to-Rx-SAW filter RF interface
Tx harmonics below –40 dBm
Current limiting and over-voltage protection for ruggedness and extended battery life
Input/Output ports internally matched to 50 load
High impedance control inputs: 20 μA, maximum
Power control circuitry built-in for improved TRP variation

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