LMH6522
- OIP3: 49dBm @ 200MHz
- Noise Figure: 8.5dB
- Voltage Gain: 26dB
- 1dB Gain Steps
- −3dB Bandwidth of 1400 MHz
- Gain Step Accuracy: 0.2 dB
- Disable Function for Each Channel
- Parallel and Serial Gain Control
- Low Power Mode for Power Management Flexibility
- Small Footprint WQFN Package
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The LMH6522 contains four, high performance, digitally controlled variable gain amplifiers (DVGA). It has been designed for use in narrowband and broadband IF sampling applications. Typically, the LMH6522 drives a high performance ADC in a broad range of mixed signal and digital communication applications such as mobile radio and cellular base stations where automatic gain control (AGC) is required to increase system dynamic range.
Each channel of LMH6522 has an independent, digitally controlled attenuator and a high linearity, differential output, amplifier. All circuitry has been optimized for low distortion and maximum system design flexibility. Power consumption is managed by a three-state enable pin. Individual channels can be disabled or placed into a Low Power Mode or a higher performance, High Power Mode.
The LMH6522 digitally controlled attenuator provides precise 1dB gain steps over a 31dB range. The digital attenuator can be controlled by either a SPI Serial bus or a high speed parallel bus.
The output amplifier has a differential output, allowing large signal swings on a single 5V supply. The low impedance output provides maximum flexibility when driving a wide range filter designs or analog to digital converters. For applications which have very large changes in signal level LMH6522 can support up to 62dB of gain range by cascading channels.
The LMH6522 operates over the industrial temperature range of −40°C to +85°C. The LMH6522 is available in a 54-Pin, thermally enhanced, WQFN package.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | LMH6522 High Performance Quad DVGA 数据表 (Rev. D) | 2013-3-18 | |||
| 电子书 | The Signal e-book: 有关运算放大器设计主题的博客文章汇编 | PDF | HTML | 英语版 | PDF | HTML | 2018-1-31 | |
| 应用手册 | AN-1719 Noise Figure Analysis Fully Differential Amplifier (Rev. A) | 2013-5-1 | ||||
| 应用手册 | AN-2235 Ckt Brd Design for LMH6517/21/22 & Other H-Sp IF/RF F Amp (Rev. A) | 2013-5-1 | ||||
| 应用手册 | AN-1718 Differential Amplifier Applications Up to 400 MHz (Rev. B) | 2013-5-1 | ||||
| 应用手册 | Using High Speed Diff Amp to Drive ADCs (Rev. A) | 2013-4-26 | ||||
| 应用手册 | Between the Amplifier and ADC: Managing Filter Loss in Communications Systems (Rev. B) | 2013-4-26 | ||||
| 更多文献资料 | Featured High Speed Differential Amplifiers | 2012-10-23 | ||||
| 应用手册 | Application Note 1718 Differential Amplifier Applications Up to 400 MHz (cn) | 2007-11-14 | ||||
| 应用手册 | A Walk Along the Signal Path (High-Speed Signal Path) | 2005-3-30 |
设计与开发
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LMH6522EVAL — LMH6522EVAL 评估模块
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WQFN (NJY) | 54 | Ultra Librarian |