ADI ADL6317可变射频(RF)增益放大器(VGA)解决方案

ADI公司的ADL6317可变射频(RF)增益放大器(VGA),提供从射频 (RF) 数模转换器 (DAC),收发器和片内系统 (SoC) 到功率放大器 (PA) 的接口.器件集成了平衡/不平衡转换器和混合耦合器可以在 1.5 GHz 至 3.0 GHz 的频率范围内实现高性能 RF 能力.ADL6317 还包含了电压可变衰减器 (VVA),高线性度放大器和数字分级衰减器 (DSA),而集成到 ADL6317 中的套件可以通过 4 线串行端口接口 (SPI) 进行编程.RF输出频率从1500MHz到3000MHz.50 Ω 差分输入和50 Ω单端输出,工作电压5V.主要用在FDD/TDD宽带通信系统中的2G/3G/4G LTE.本文介绍了ADL6317主要特性,功能框图和RF信号链,基本点连接图和信号通路使能框图,通用特性建立图以及ADL6317评估板主要特性,测试建立图和电路图.
The ADL6317 is a transmit variable gain amplifier (VGA) that provides an interface from radio frequency digital-to-analog converters (RF DACs), transceivers, and systems on a chip (SoC) to power amplifiers. Integrated balun and hybrid couplers allow high performance RF capability in the frequency range of 1500 MHz to 3000 MHz.
To optimize performance vs. power level, the ADL6317 includes a voltage variable attenuator (VVA), high linearity amplifiers, and a digital step attenuator (DSA). All of the devices integrated into the ADL6317 are programmable via a 4-wire serial port interface (SPI).
The ADL6317 is manufactured on an advanced silicon germanium (SiGe), bipolar complementary metal oxide semiconductor (BiCMOS) process.
ADL6317主要特性:
Transmit VGA for RF DAC, transceiver, and SoC to power amplifier interface
RF output frequency range: 1500 MHz to 3000 MHz
Internal balun with bias-tee to supply RF DAC outputs
Integrated VVA attenuation range with on-chip DAC: 20.5 dB
2-stage high linearity amplifiers
RF DSA attenuation range: 15.5 dB with 0.5 dB step resolution
50 Ω differential inputs and 50 Ω single-ended output
Fully programmable via a 4-wire SPI
Single 5 V supply
38-terminal, 10.5 mm × 5.5 mm LGA
ADL6317应用:

2G/3G/4G/long-term evolution (LTE) in FDD/TDD broa...