Datasheet > LMX2502

LMX2502

更新时间： 2024-11-22 11:13:47

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
23页	424K
描述
具有集成 VCO 的频率合成器系统

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LMX2502 数据手册

LMX2502, LMX2512

www.ti.com

SNWS010C –MARCH 2003–REVISED APRIL 2013

LMX2502/LMX2512 PLLatinum™ Frequency Synthesizer System with Integrated VCO

Check for Samples: LMX2502, LMX2512

FEATURES

DESCRIPTION

LMX2502 and LMX2512 are highly integrated, high

performance, low power frequency synthesizer

systems optimized for Korean PCS and Korean

Cellular CDMA (1xRTT, IS-95) mobile handsets.

•

Small Size

5.0 mm X 5.0 mm X 0.75 mm 28-Pin WQFN

Package

RF Synthesizer System

–

•

Using

a proprietary digital phase locked loop

technique, LMX2502 and LMX2512 generate very

stable, low noise local oscillator signals for up and

down conversion in wireless communications

devices.

–

Integrated RF VCO

Integrated Loop Filter

Low Spurious, Low Phase Noise Fractional-

N RF PLL Based on 11-Bit Delta Sigma

Modulator

LMX2502 and LMX2512 include a voltage controlled

oscillator (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 synthesizer

system. LMX2502 supports the Korean PCS band

and LMX2512 supports the Korean Cellular band.

–

10 kHz Frequency Resolution

•

IF Synthesizer System

–

Integer-N IF PLL

Programmable Charge Pump Current

Levels

LMX2502 and LMX2512 include an Integer-N IF PLL

also. For more flexible loop filter designs, the IF PLL

–

Programmable Frequency

includes

a 4-level programmable charge pump.

Supports Various Reference Frequencies

19.20/19.68 MHz

Together with an external VCO and loop filter,

LMX2502 and LMX2512 make a complete closed

loop IF synthesizer system.

–

•

Fast Lock Time: 500 µs

Serial data is transferred to the device via a three-

wire MICROWIRE interface (DATA, LE, CLK).

Low Current Consumption

–

17 mA at 2.8 V

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.

•

2.7 V to 3.3 V Operation

Digital Filtered Lock Detect Output

Hardware and Software Power Down Control

LMX2502 and LMX2512 are available in a 28-pin

WQFN package.

APPLICATIONS

•

Korean PCS CDMA Systems

Korean Cellular CDMA Systems

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...23

中文翻译

下载PDF

与LMX2502相关器件

型号	品牌	获取价格	描述	数据表
LMX2502LQ1635	NSC	获取价格	PLLatinum⑩ Frequency Synthesizer System with
LMX2502LQ1635/NOPB	TI	获取价格	具有集成 VCO 的频率合成器系统 \| NJB \| 28 \| -30 to 85
LMX2502LQX1635	NSC	获取价格	PLLatinum⑩ Frequency Synthesizer System with
LMX2502LQX1635	TI	获取价格	PLL FREQUENCY SYNTHESIZER, 19.68MHz, QCC28, 5 X 5 MM, 0.75 MM HEIGHT, LLP-28
LMX2505	NSC	获取价格	PLLatinu Dual Frequency Synthesizer System with Integrated VCOs
LMX2505LQ1321	NSC	获取价格	PLLatinu Dual Frequency Synthesizer System with Integrated VCOs
LMX2505LQX1321	NSC	获取价格	PLLatinu Dual Frequency Synthesizer System with Integrated VCOs
LMX2512	NSC	获取价格	PLLatinum⑩ Frequency Synthesizer System with
LMX2512LQ0967	NSC	获取价格	PLLatinum⑩ Frequency Synthesizer System with
LMX2512LQ1065	NSC	获取价格	PLLatinum⑩ Frequency Synthesizer System with

与LMX2502相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

27
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

19
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

49
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

47

产品中心

服务支持

精选活动

关于我们

帮助中心

LMX2502

LMX2502 数据手册

与LMX2502相关器件

与LMX2502相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LMX2502

LMX2502 数据手册

与LMX2502相关器件

与LMX2502相关文章

您还可以找

您在本页遇到什么问题？