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参数资料
| 型号： | LMX2331LMDA |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 2000 MHz, UUC |
| 封装： | DIE |
| 文件页数： | 1/30页 |
| 文件大小： | 578K |
| 代理商： | LMX2331LMDA |
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LMX2330L/LMX2331L/LMX2332L
PLLatinum Low Power Dual Frequency Synthesizer for
RF Personal Communications
LMX2330L
2.5 GHz/510 MHz
LMX2331L
2.0 GHz/510 MHz
LMX2332L
1.2 GHz/510 MHz
General Description
The LMX233XL family of monolithic, integrated dual fre-
quency synthesizers, including prescalers, is to be used as a
local oscillator for RF and first IF of a dual conversion trans-
ceiver. It is fabricated using National’s 0.5 ABiC V silicon
BiCMOS process.
The LMX233XL contains dual modulus prescalers. A 64/65
or a 128/129 prescaler (32/33 or 64/65 in the 2.5 GHz
LMX2330L) can be selected for the RF synthesizer and a 8/9
or a 16/17 prescaler can be selected for the IF synthesizer.
LMX233XL, which employs a digital phase locked loop tech-
nique, combined with a high quality reference oscillator, pro-
vides the tuning voltages for voltage controlled oscillators to
generate very stable, low noise signals for RF and IF local
oscillators. Serial data is transferred into the LMX233XL via
a three wire interface (Data, Enable, Clock). Supply voltage
can range from 2.7V to 5.5V. The LMX233XL family features
very low current consumption;
LMX2330L — 5.0 mA at 3V, LMX2331L — 4.0 mA at 3V,
LMX2332L — 3.0 mA at 3V.
The LMX233XL are available in a TSSOP 20-pin and CSP
24-pin surface mount plastic package.
Features
n Ultra low current consumption
n 2.7V to 5.5V operation
n Selectable synchronous or asynchronous powerdown
mode:
I
CC = 1 A typical at 3V
n Dual modulus prescaler:
LMX2330L
(RF) 32/33 or 64/65
LMX2331L/32L
(RF) 64/65 or 128/129
LMX2330L/31L/32L
(IF) 8/9 or 16/17
n Selectable charge pump TRI-STATE mode
n Selectable charge pump current levels
n Selectable Fastlock mode
n Upgrade and compatible to LMX233XA family
Applications
n Portable Wireless Communications
(PCS/PCN, cordless)
n Cordless and cellular telephone systems
n Wireless Local Area Networks (WLANs)
n Cable TV tuners (CATV)
n Other wireless communication systems
Functional Block Diagram
TRI-STATE is a registered trademark of National Semiconductor Corporation.
Fastlock, MICROWIRE and PLLatinum are trademarks of National Semiconductor Corporation.
DS012806-1
June 1999
LMX2330L/LMX2331L/LMX2332L
PLLatinum
Low
Power
Dual
Frequency
Synthesizer
for
RF
Personal
Communications
1999 National Semiconductor Corporation
DS012806
www.national.com
相关PDF资料 |
PDF描述 |
|---|---|
| LMX2332UTMX/NOPB | PLL FREQUENCY SYNTHESIZER, 1200 MHz, PDSO20 |
| LMX2332UTM/NOPB | PLL FREQUENCY SYNTHESIZER, 1200 MHz, PDSO20 |
| LMX2331UTM/NOPB | PLL FREQUENCY SYNTHESIZER, 2000 MHz, PDSO20 |
| LMX2331USLEX | PLL FREQUENCY SYNTHESIZER, 2000 MHz, PQCC24 |
| LMX2330UTMX/NOPB | PLL FREQUENCY SYNTHESIZER, 2500 MHz, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LMX2331LSLB | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum⑩ Low Power Dual Frequency Synthesizer for RF Personal Communications |
| LMX2331LSLBX | 制造商:Texas Instruments 功能描述: |
| LMX2331LSLBX/NOPB | 功能描述:IC FREQ SYNTH DUAL 24-LCSP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:PLLatinum™ 标准包装:39 系列:- 类型:* PLL:带旁路 输入:时钟 输出:时钟 电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是 频率 - 最大:170MHz 除法器/乘法器:无/无 电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
| LMX2331LSLDX | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinumTM Low Power Dual Frequency Synthesizer for RF Personal Communications |
| LMX2331LSLDX/NOPB | 功能描述:IC FREQ SYNTH DUAL RF COMM 20CSP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:PLLatinum™ 标准包装:39 系列:- 类型:* PLL:带旁路 输入:时钟 输出:时钟 电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是 频率 - 最大:170MHz 除法器/乘法器:无/无 电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
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