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參數資料
| 型號： | LMX2315TMX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | Frequency Synthesizer for RF Personal Communications |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 1200 MHz, PDSO20 |
| 封裝： | 0.173 INCH, PLASTIC, TSSOP-20 |
| 文件頁數： | 1/22頁 |
| 文件大?。?/td> | 409K |
| 代理商： | LMX2315TMX |
TL/W/12339
L
S
L
September 1996
LMX2315/LMX2320/LMX2325 PLLatinum
TM
Frequency Synthesizer
for RF Personal Communications
LMX2325 2.5 GHz
LMX2320 2.0 GHz
LMX2315 1.2 GHz
General Description
The LMX2315/2320/2325’s are high performance frequen-
cy synthesizers with integrated prescalers designed for RF
operation up to 2.5 GHz. They are fabricated using Nation-
al’s ABiC IV BiCMOS process.
A 64/65 or a 128/129 divide ratio can be selected for the
LMX2315 and LMX2320 RF synthesizer at input frequencies
of up to 1.2 GHz and 2.0 GHz, while 32/33 and 64/65 divide
ratios are available in the 2.5 GHz LMX2325. Using a propri-
etary digital phase locked loop technique, the LMX2315/
2320/2325’s linear phase detector characteristics can gen-
erate very stable, low noise signals for controlling a local
oscillator.
Serial data is transferred into the LMX2320 and the
LMX2325 via a three line MICROWIRE
TM
interface (Data,
Enable, Clock). Supply voltage can range from 2.7V to 5.5V.
The LMX2315, LMX2320 and the LMX2325 feature very low
current consumption, typically 6 mA, 10 mA and 11 mA re-
spectively.
The LMX2315, LMX2320 and the LMX2325 are available in
a TSSOP 20-pin surface mount plastic package.
Features
Y
RF operation up to 2.5 GHz
Y
2.7V to 5.5V operation
Y
Low current consumption
Y
Dual modulus prescaler:
LMX2325
LMX2320/LMX2315
32/33 or 64/65
64/65 or 128/129
Y
Internal balanced, low leakage charge pump
Y
Power down feature for sleep mode:
I
CC
e
30
m
A (typ) at V
CC
e
3V
Y
Small-outline, plastic, surface mount TSSOP, 0.173
×
wide
Applications
Y
Cellular telephone systems
(GSM, IS-54, IS-95, (RCR-27)
Y
Portable wireless communications (DECT, PHS)
Y
CATV
Y
Other wireless communication systems
Block Diagram
TL/W/12339–1
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-B30M106/Printed in U. S. A.
http://www.national.com
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| LMX2316 | PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications |
| LMX2316TMX | PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications |
| LMX2316TM | PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications |
| LMX2316SLBX | PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications |
| LMX2331A | PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LMX2316 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications |
| LMX2316LBX | 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 |
| LMX2316SLBX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications |
| LMX2316SLBX/NOPB | 功能描述:IC FREQ SYNTH 1.2GHZ 16LAMIN CSP RoHS:是 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:* |
| LMX2316TM | 制造商:Texas Instruments 功能描述:PLL Frequency Synthesizer Single 100MHz to 1200MHz 16-Pin TSSOP Rail |
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