Datasheet > LMX2364

LMX2364

更新时间： 2024-01-25 22:39:53

品牌	Logo	应用领域
美国国家半导体 - NSC		半导体
页数	文件大小	规格书
39页	689K
描述
2.6 GHz PLLatinum Fractional RF Frequency Synthesizer with 850 MHz Integer IF Frequency Synthesizer

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LMX2364 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	TSSOP
包装说明：	TSSOP,	针数：	24
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.63
模拟集成电路 - 其他类型：	PLL FREQUENCY SYNTHESIZER	JESD-30 代码：	R-PDSO-G24
JESD-609代码：	e3	长度：	7.8 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	24	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	座面最大高度：	1.1 mm
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	2.7 V
标称供电电压 (Vsup)：	3 V	表面贴装：	YES
技术：	BICMOS	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	宽度：	4.4 mm
Base Number Matches：	1

LMX2364 数据手册

July 2003

LMX2364

2.6 GHz PLLatinum Fractional RF Frequency Synthesizer

with 850 MHz Integer IF Frequency Synthesizer

allows direct connection to 1.8 Volt and 3.0 Volt devices.

General Description

Supply voltages from 2.7V to 5.5V are supported. Indepen-

The LMX2364 integrates a high performance 2.6 GHz frac-

dent charge pump supplies for each synthesizer allows the

tional frequency synthesizer with a 850 MHz low power

designer to optimize the bias level for the selected VCO. The

Integer-N frequency synthesizer. Designed for use in a local

LMX2364 consumes 5.0 mA (typical) of current in integer

oscillator subsystem of a radio transceiver, the LMX2364

mode and 7.2 mA (typical) in fractional mode. The LMX2364

generates very stable, low noise control signals for UHF and

is available in a 24 Pin Ultra Thin CSP package and 24 Pin

VHF voltage controlled oscillators. It is fabricated using Na-

TSSOP Package.

tional’s high performance BiCMOS process.

The RF Synthesizer supports both fractional and integer

modes. The N counter contains a selectable, quadruple

Features

RF Synthesizer supports both Fractional and Integer

Operating Modes

modulus prescaler and can support fractional denominators

from 1 to 128. A flexible, 4 level programmable charge pump

supplies output current magnitudes ranging from 1 mA to 16

mA. Only a single word write is required to power up and

tune the synthesizer to a new frequency.

n Pin Compatible upgrade for LMX2354

n 2.7V to 5.5V operation

n Pin and programmable power down

n Fractional N divider supports fractional denominators

ranging from 1 through 128

n Supports Integer Mode Operation

n Programmable charge pump current levels

RF: 4 level, 1 – 16 mA

™

High performance FastLock

technology makes the

LMX2364 an excellent choice for applications requiring ag-

gressive lock time while maintaining excellent phase noise

and spurious performance. The combination of the improved

FastLock circuitry, the enhanced fractional compensation

engine, and the programmable charge pump architecture

gives the designer maximum freedom to optimize the perfor-

mance of the synthesizer for the target application. Inte-

grated timeout counters greatly simplify the programming

aspects of FastLock. These timeout counters reduce the

demands on the microcontroller by automatically disengag-

ing FastLock after a perscribed number of reference cycles

of the phase detector.

IF: 2 level, 100/800 uA

n FastLock Technology with integrated timeout counters

n Digital filtered & analog lock detect output

n FastLock Glitch Reduction Technology

n Enhanced Low Noise Fractional Compensation Engine

n Low voltage programming interface allows direct

connection to 1.8V logic

The IF synthesizer includes a fixed 8/9 dual modulus pres-

caler, a two level programmable charge pump, and dedi-

cated FastLock circuitry with an integrated timeout counter.

Applications

n Digital Cellular

n GPRS

n IS-136

n GAIT

n PDC

n EDGE

n CDMA

n Zero blind slot TDMA systems

n Cable TV Tuners (CATV)

The LMX2364 offers many performance enhancements over

the LMX2354. Improvements in the fractional compensation

make the spurs on the LMX2364 approximately 6 dB better

in a typical application. The higher and more flexible frac-

tional modulus combined with the higher charge pump cur-

rents result in phase noise improvements on the order of 10

dB. The cycle slip reduction circuitry of the LMX2364 is both

easy to use and effective in reducing cycle slipping and

allows one to use very high phase detector frequencies

without degrading lock times.

Serial data is transferred to the device via a three-wire

interface (DATA, LE, CLK). The low voltage logic interface

™

FastLock is a trademark of National Semiconductor Corporation.

TRI-STATE^®is a registered trademark of National Semiconductor Corporation.

DS200506

www.national.com

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与LMX2364相关器件

型号	品牌	获取价格	描述	数据表
LMX2364SLE	TI	获取价格	PLL FREQUENCY SYNTHESIZER, 2600MHz, QCC24, MICRO, CSP-24
LMX2364SLEX	NSC	获取价格	2.6 GHz PLLatinum Fractional RF Frequency Synthesizer with 850 MHz Integer IF Frequency Sy
LMX2364SLEX/NOPB	ROCHESTER	获取价格	PLL FREQUENCY SYNTHESIZER, 2600MHz, QCC24, LEAD FREE, ULTRA THIN, CSP-24
LMX2364TM	NSC	获取价格	2.6 GHz PLLatinum Fractional RF Frequency Synthesizer with 850 MHz Integer IF Frequency Sy
LMX2364TMX	NSC	获取价格	2.6 GHz PLLatinum Fractional RF Frequency Synthesizer with 850 MHz Integer IF Frequency Sy
LMX2370	NSC	获取价格	PLLatinum⑩ Dual Frequency Synthesizer for RF
LMX2370SLBX	NSC	获取价格	PLLatinum⑩ Dual Frequency Synthesizer for RF
LMX2370SLBX	TI	获取价格	PLL FREQUENCY SYNTHESIZER, 2500MHz, QCC24, 3.50 X 4.50 MM, 1 MM HEIGHT, CSP-24
LMX2370SLDX	NSC	获取价格	IC PLL FREQUENCY SYNTHESIZER, 2500 MHz, QCC24, 3.50 X 4.50 MM, 0.8 MM HEIGHT, TCSP-24, PLL
LMX2370SLDX	TI	获取价格	PLL FREQUENCY SYNTHESIZER, 2500MHz, QCC24, 3.50 X 4.50 MM, 0.8 MM HEIGHT, TCSP-24

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