- 您現在的位置：買賣IC網 > PDF目錄361044 > LMX2305TM (NATIONAL SEMICONDUCTOR CORP) PLLatinumTM 550 MHz Frequency Synthesizer for RF Personal Communications PDF資料下載
參數資料
| 型號： | LMX2305TM |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | PLLatinumTM 550 MHz Frequency Synthesizer for RF Personal Communications |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 550 MHz, PDSO20 |
| 封裝： | 0.173 INCH, PLASTIC, TSSOP-20 |
| 文件頁數： | 1/14頁 |
| 文件大小： | 228K |
| 代理商： | LMX2305TM |
TL/W/12459
L
f
PRELIMINARY
August 1996
LMX2305
PLLatinum
TM
550 MHz Frequency Synthesizer
for RF Personal Communications
General Description
The LMX2305 is a high performance frequency synthesizer
with an integrated prescaler designed for RF operation up to
550 MHz. It is fabricated using National’s ABiC IV BiCMOS
process.
The LMX2305 contains a dual modulus prescaler which can
select either a 64/65 or a 128/129 divide ratio at input fre-
quencies of up to 550 MHz. LMX2305, which employs the
digital phase lock loop technique, combined with a high
quality reference oscillator and a loop filter, provides the
tuning voltage for the voltage controlled oscillator to gener-
ate a very stable, low noise local oscillator signal.
Serial data is transferred into the LMX2305 via a three line
MICROWIRE
TM
interface (Data, Enable, Clock). Supply volt-
age can range from 2.65V to 5.5V. The LMX2305 features
very low current consumption, typically 4.0 mA at 2.75V.
The LMX2305 is available in a TSSOP 20-pin surface mount
plastic package.
Features
Y
RF operation up to 550 MHz
Y
2.65V to 5.5V operation
Y
Low current consumption:
I
CC
e
4.0 mA (typ) at V
CC
e
2.75V
Y
Dual modulus prescaler: 64/65 or 128/129
Y
Internal balanced, low leakage charge pump
Y
Small-outline, plastic, surface mount TSSOP,
0.173
×
wide package
Applications
Y
Analog Cellular telephone systems
(AMPS, ETACS, NMT)
Y
Portable wireless communications
(PCS/PCN, cordless)
Y
Wireless local area networks (WLANs)
Y
Other wireless communication systems
Y
Pagers
Block Diagram
TL/W/12459–1
TRI-STATE
é
is a registered trademark of National Semiconductor Corporation.
MICROWIRE
TM
and PLLatinum
TM
are trademarks of National Semiconductor Corporation.
C
1996 National Semiconductor Corporation
RRD-B30M126/Printed in U. S. A.
http://www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LMX2305TMX | PLLatinumTM 550 MHz Frequency Synthesizer for RF Personal Communications |
| LMX2305 | PLLatinum 550 MHz Frequency Synthesizer for RF Personal Communications(PLLatinum技術用于射頻個人通訊的550MHZ頻率合成器) |
| LMX2354TM | PLLatinum Fractional N RF/ Integer N IF Dual Low Power Frequency Synthesizer |
| LMX2354 | PLLatinum Fractional N RF/ Integer N IF Dual Low Power Frequency Synthesizer |
| LMX2355TM | PLLatinum Fractional N RF/ Integer N IF Dual Low Power Frequency Synthesizer |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LMX2305TMX | 功能描述:IC FREQ SYNTH DUAL 20-TSSOP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發生器，PLL，頻率合成器 系列:PLLatinum™ 標準包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數: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:* 供應商設備封裝:* 包裝:* |
| LMX2305WG/B | 制造商:Rochester Electronics LLC 功能描述: |
| LMX2306 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications |
| LMX2306_04 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications |
| LMX2306LBX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FREQUENCY SYNTHESIZER|BICMOS|LLCC|16PIN|PLASTIC |
發布緊急采購，3分鐘左右您將得到回復。