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參數(shù)資料
| 型號： | LMX2314 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 1.2 GHz Frequency Synthesizer for RF Personal Communications |
| 中文描述： | 1.2千兆赫頻率合成射頻個(gè)人通信 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 371K |
| 代理商： | LMX2314 |
TL/W/11766
L
S
March 1995
LMX2314/LMX2315 PLLatinum
TM
1.2 GHz Frequency Synthesizer
for RF Personal Communications
General Description
The LMX2314 and the LMX2315 are high performance fre-
quency synthesizers with integrated prescalers designed for
RF operation up to 1.2 GHz. They are fabricated using Na-
tional’s ABiC IV BiCMOS process.
The LMX2314 and the LMX2315 contain dual modulus pre-
scalers which can select either a 64/65 or a 128/129 divide
ratio at input frequencies of up to 1.2 GHz. Using a proprie-
tary digital phase locked loop technique, the LMX2314/15’s
linear phase detector characteristics can generate very sta-
ble, low noise local oscillator signals.
Serial data is transferred into the LMX2314 and the
LMX2315 via a three line MICROWIRE
TM
interface (Data,
Enable, Clock). Supply voltage can range from 2.7V to 5.5V.
The LMX2314 and the LMX2315 feature very low current
consumption, typically 6 mA at 3V.
The LMX2314 is available in a JEDEC 16-pin surface mount
plastic package. The LMX2315 is available in a TSSOP
20-pin surface mount plastic package.
Features
Y
RF operation up to 1.2 GHz
Y
2.7V to 5.5V operation
Y
Low current consumption:
I
CC
e
6 mA (typ) at V
CC
e
3V
Y
Dual modulus prescaler: 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 JEDEC, 0.150
×
wide, (2314) or TSSOP, 0.173
×
wide, (2315) package
Applications
Y
Cellular telephone systems
(GSM, IS-54, IS-95, RCR-27)
Y
Portable wireless communications
(DECT, ISM902-928 CT-2)
Y
Other wireless communication systems
Block Diagram
TL/W/11766–1
TRI-STATE
é
is a registered trademark of National Semiconductor Corporation.
MICROWIRE
TM
and PLLatinum
TM
are trademarks of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation
RRD-B30M115/Printed in U. S. A.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LMX2314M | 1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2314MX | 1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2315 | Frequency Synthesizer for RF Personal Communications |
| LMX2315TM | Frequency Synthesizer for RF Personal Communications |
| LMX2315TMX | Frequency Synthesizer for RF Personal Communications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX2314M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2314MX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2315 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2315D WAF | 制造商:Texas Instruments 功能描述: |
| LMX2315TM | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.2 GHz Frequency Synthesizer for RF Personal Communications |
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