參數(shù)資料
型號: LMX1501MDA
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: PLL合成/DDS/VCOs
英文描述: PLL FREQUENCY SYNTHESIZER, 1100 MHz, UUC
封裝: DIE
文件頁數(shù): 5/25頁
文件大?。?/td> 410K
代理商: LMX1501MDA
Analog Switch (1511 only)
The analog switch is useful for radio systems that utilize a frequency scanning mode and a narrow band mode The purpose of
the analog switch is to decrease the loop filter time constant allowing the VCO to adjust to its new frequency in a shorter
amount of time This is achieved by adding another filter stage in parallel The output of the charge pump is normally through the
Do pin but when LE is set HIGH the charge pump output also becomes available at BISW A typical circuit is shown below The
second filter stage (LPF-2) is effective only when the switch is closed (in the scanning mode)
TLW12340 – 25
Typical Crystal Oscillator Circuit
A typical circuit which can be used to implement a crystal
oscillator is shown below
TLW12340 – 26
Typical Lock Detect Circuit
A lock detect circuit is needed in order to provide a steady
LOW signal when the PLL is in the locked state A typical
circuit is shown below
TLW12340 – 27
13
相關(guān)PDF資料
PDF描述
LMX1600TM/NOPB PLL FREQUENCY SYNTHESIZER, 2000 MHz, PDSO16
LMX1601TM/NOPB PLL FREQUENCY SYNTHESIZER, 1100 MHz, PDSO16
LMX2301MDC PLL FREQUENCY SYNTHESIZER, 160 MHz, UUC
LMX2313USLDX/NOPB PLL FREQUENCY SYNTHESIZER, 600 MHz, QCC20
LMX2315WG-QML PLL FREQUENCY SYNTHESIZER, 1200 MHz, CDSO20
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LMX1511 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinumTM 1.1 GHz Frequency Synthesizer for RF Personal Communications
LMX1511TM 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinumTM 1.1 GHz Frequency Synthesizer for RF Personal Communications
LMX1511TMX 功能描述:IC FREQ SYNTHESZR 1.1GHZ 20TSSOP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(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:時鐘 輸出:時鐘 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:*
LMX1531LQ1515E 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Performance Frequency Synthesizer System with Integrated VCO
LMX156 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC