SKY77916-21中文资料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数据手册Skyworks规格书

描述 Description

Please note: SKY77916-21B, SKY77916-21D and SKY77916-21H are being discontinued and are not recommended for new designs.

SKY77916-21, a Tx / Rx Front-End Module (FEM), offers the complete transmit VCO-to-Antenna and Antenna-to-receive SAW filter solution for advanced cellular handsets comprising quad-band GSM, GPRS, EDGE multi-slot operation, and TD-SCDMA and TDD LTE transmission. The FEM fully enables broadband 3G/4G RF switch-through, outward switching of the Power Amplifier (PA) RF inputs, 14 transmit / receive (TRx) antenna switch ports, and an integrated directional coupler.

A new multi-standard CMOS controller provides PA band/mode selection and bias control, including the Mobile Industry Processor Interface (MIPI®) RFFE logic, and switch decoder circuitry. The controller supports user-optional control of linear RF or analog VRAMP of the GMSK envelope. A distinct MIPI register mapping included in the Data Sheet provides for each of these control paradigms, including associated approaches to PA and switch control.

The Heterojunction Bipolar Transistor (HBT) PA blocks are fabricated in Gallium Arsenide (GaAs). The low band (LB) PA transmits in the GSM850/900 bands. The high band (HB) PA supports DCS, PCS, TD-SCDMA bands 34/39, and TDD LTE band 39. The HBT, switch, and controller die, and passive components mount onto a multi-layer laminate substrate and the entire assembly encapsulated with plastic over-mold.

Built into the SKY77916-21 is a complete features set for state-of-the-art performance and minimal phone board complexity, including PA over-voltage and over-current protection, 50 ohms matching and zero DC offset on all RF pins, TRx high linearity/low loss switching and high off-state isolation, integrated directional coupler, IEC ruggedness at antenna output, LB and HB input switching for alternate routing of 3G/4G Tx paths, power supply pads shared between LB and HB, and ultra-low leakage currents for long standby times.

Selecting the linear-GMSK operation standard disables VRAMP input so all PA biasing depends only on MIPI mode selection. The transmitted envelope is 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. Skyworks’ Finger-Based Integrated Power Amplifier Control (FB-iPAC) minimizes output power variation into mismatch. In EDGE and TD-SCDMA / TDD LTE linear modes, VRAMP voltage and MIPI-based bias settings jointly optimize PA linearity and efficiency.

特性 Features

• Small, low profile package: 5.5 mm x 5.3 mm x 0.75 mm, 38-pad configuration
• RF ports internally matched to 50 \u001E load
• Tx harmonics below –40 dBm
• 14 low insertion loss/high linearity TRx switch ports
• Integrated broadband directional coupler
• Built-in IEC-compliant antenna ESD protection
• Current limiting and over-voltage protection for ruggedness and extended battery life
• Power control circuitry built-in for improved TRP variation

应用 Application

• Smartphones
• 4G LTE

简介

SKY77916-21属于RF/IF射频/中频RFID的RFIC模块。由制造生产的SKY77916-21RF 其它 IC 和模块RF 其它 IC 和模块产品系列包含各种独特、专门或特定用途的产品，可与 RF、IF 和微波无线电应用结合使用。示例包括 AM/FM 调谐器和接收器、偏置网络、基带处理器、计数器、数字可调电容器、下变频器、倍频器、移相器、前置分频器、端接器、上变频器、VCO 等。