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參數(shù)資料
| 型號： | LMX2335LTMX/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 1100 MHz, PDSO16 |
| 封裝： | PLASTIC, TSSOP-16 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大小： | 631K |
| 代理商： | LMX2335LTMX/NOPB |
LMX2335L/LMX2336L
LMX2335L
1.1 GHz/1.1 GHz
LMX2336L
2.0 GHz/1.1 GHz
PLLatinum Low Power Dual Frequency Synthesizer for
RF Personal Communications
General Description
The LMX2335L and LMX2336L are monolithic, integrated
dual frequency synthesizers, including two high frequency
prescalers, and are designed for applications requiring two
RF phase-lock loops. They are fabricated using National’s
0.5 ABiC V silicon BiCMOS process.
The LMX2335L/36L contains two dual modulus prescalers. A
64/65 or a 128/129 prescaler can be selected for each RF
synthesizer. A second reference divider chain is included in
the IC for improved system noise. The LMX2335L/36L com-
bined with a high quality reference oscillator, two loop filters,
and two external voltage controlled oscillators generates
very stable low noise RF local oscillator signals.
Serial data is transferred into the LMX2335L/36L via a three
wire interface (Data, Enable, Clock). Supply voltage can
range from 2.7V to 5.5V. The LMX2335L/36L feature very
low current consumption; LMX2335L 4.0 mA at 5V,
LMX2336L 5.5 mA at 5V. The LMX2335L is available in SO,
TSSOP and CSP 16-pin surface mount plastic packages.
The LMX2336L is 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 and asynchronous powerdown
mode:
I
CC = 1 A (typ)
n
Dual modulus prescaler: 64/65 or 128/129
n
Selectable charge pump TRI-STATE mode
n
Selectable charge pump current levels
n
Selectable Fastlock mode
n
Upgrade and compatible to LMX2335/36
n
Small-outline, plastic, surface mount TSSOP package
n
LMX2336 available in CSP package
Applications
n
Cellular telephone systems (AMPS, ETACS, RCR-27)
n
Cordless telephone systems
(DECT, ISM , PHS, CT-1+)
n
Personal Communication Systems
(DCS-1800, PCN-1900)
n
Dual Mode PCS phones
n
Cable TV Tuners (CATV)
n
Other wireless communication systems
Functional Block Diagram
01280701
TRI-STATE is a registered trademark of National Semiconductor Corporation.
Fastlock, MICROWIRE and PLLatinum are trademarks of National Semiconductor Corporation.
PRELIMINARY
February 2001
LMX2335L/LMX2336L
PLLatinum
Low
Power
Dual
Frequency
Synthesizer
for
RF
Personal
Communications
2004 National Semiconductor Corporation
DS012807
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LMX2335LMX | PLL FREQUENCY SYNTHESIZER, 1100 MHz, PDSO16 |
| LMX2335LTM/NOPB | PLL FREQUENCY SYNTHESIZER, 1100 MHz, PDSO16 |
| LMX2336LTMX/NOPB | PLL FREQUENCY SYNTHESIZER, 2000 MHz, PDSO20 |
| LMX2336LTM/NOPB | PLL FREQUENCY SYNTHESIZER, 2000 MHz, PDSO20 |
| LMX2335USLB | PLL FREQUENCY SYNTHESIZER, 1200 MHz, PQCC16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX2335M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
| LMX2335MX | 功能描述:IC FREQ SYNTH DUAL 1.1GHZ 16SOIC RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:PLLatinum™ 標(biāo)準(zhǔn)包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時(shí)鐘 輸出:時(shí)鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| LMX2335TM | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
| LMX2335TMX | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| LMX2335U | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications |
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