LMX2522
- Small
Size
- Small 5.0 mm x 5.0 mm x 0.75 mm 28-Pin WQFN Package
- RF/GPS Synthesizer
System
- Integrated RF VCO
- Integrated GPS VCO
- Integrated Loop Filter
- Low Spurious, Low Phase Noise Fractional-N RF PLL Based on 11-bit Delta Sigma Modulator
- 10 kHz Frequency Resolution
- IF Synthesizer
System
- Integer-N IF PLL
- Programmable Charge Pump Current Levels
- Programmable Frequencies
- Supports Various Reference Oscillator
Frequencies
- 19.20/19.68 MHz
- Fast Lock Time: 500 µs
- Low
Current Consumption
- 17 mA at 2.8 V
- 2.7 V to 3.3 V Operation
- Digital Filtered Lock Detect Output
- Hardware and Software Power Down Control
All trademarks are the property of their respective owners.
LMX2522 and LMX2532 are highly integrated, high performance, low power frequency synthesizer systems optimized for Korean PCS (K-PCS) with GPS and Korean Cellular (K-Cellular) with GPS, CDMA (1xRTT, IS-95) mobile handsets. Using a proprietary digital phase locked loop technique, LMX2522 and LMX2532 generate very stable, low noise local oscillator signals for up and down conversion in wireless communications devices.
LMX2522 and LMX2532 include a RF voltage controlled oscillator (VCO), a GPS VCO, a loop filter, and a fractional-N RF PLL based on a delta sigma modulator. In concert these blocks form a closed loop RF and GPS synthesizer system. LMX2522 supports the Korean PCS band with GPS and LMX2532 supports the Korean Cellular band with GPS.
LMX2522 and LMX2532 include an Integer-N IF PLL also. For more flexible loop filter designs, the IF PLL includes a 4-level programmable charge pump. Together with an external VCO and loop filter, LMX2522 and LMX2532 make a complete closed loop IF synthesizer system.
Serial data is transferred to the device via a three-wire MICROWIRE interface (DATA, LE, CLK).
Operating supply voltage ranges from 2.7 V to 3.3 V. LMX2502 and LMX2512 feature low current consumption: 17 mA at 2.8 V.
LMX2522 and LMX2532 are available in a 28-pin 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 | LMX2522/LMX2532 PLLatinum Frequency Synthesizer System with Integrated VCOs 数据表 (Rev. B) | 2013-4-19 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
CODELOADER — CodeLoader Device Register Programming v4.19.0
The CodeLoader 4 software is used to program the LMX PLLs and LMK timing devices through either the USB or line print terminal (LPT) port of a computer. This software also provides information on how to program the device by showing the bits that are actually sent.
Which software do I use?
Product | (...) |
PLLATINUMSIM-SW — PLL 环路滤波器、相位噪声、锁定时间和杂散模拟工具
PLLATINUMSIM-SW 是一款仿真工具，允许用户创建我们 PLLatinum™ 集成电路的详细设计和仿真，其中包括 LMX 系列锁相环 (PLL) 和合成器。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WQFN (NJB) | 28 | Ultra Librarian |