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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： | 19/30页 |
| 文件大小： | 578K |
| 代理商： | LMX2331LMDA |
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The LMX233XL family of monolithic, integrated dual frequency synthesizers, including prescalers, is to
be used as a local oscillator for RF and first IF of a dual conversion transceiver. 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 technique,
combined with a high quality reference oscillator, provides 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
Ultra low current consumption
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2.7V to 5.5V operation
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Selectable synchronous or asynchronous powerdown mode: ICC = 1 A typical at 3V
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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
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Selectable charge pump TRI-STATE mode
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Selectable charge pump current levels
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Selectable Fastlock mode
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Upgrade and compatible to LMX233XA family
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Applications
Portable Wireless Communications (PCS/PCN, cordless)
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Cordless and cellular telephone systems
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Wireless Local Area Networks (WLANs)
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Cable TV tuners (CATV)
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Other wireless communication systems
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Datasheet
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National P/N LMX2331L - 2.0 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal Communications
file:////roarer/root/export/projects/bitting2/imaging/BITTING/mail_pdf/2000/LMX2331L.html (2 of 3) [9/6/2001 11:43:06 AM]
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PDF描述 |
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| 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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