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參數資料
| 型號： | LMX2531 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | PLLatinum High Performance Frequency Synthesizer System with Integrated VCO |
| 中文描述： | PLLatinum高性能頻率合成器系統(tǒng)的集成VCO |
| 文件頁數： | 1/25頁 |
| 文件大?。?/td> | 589K |
| 代理商： | LMX2531 |
LMX2531
PLLatinum
High Performance Frequency Synthesizer
System with Integrated VCO
General Description
The LMX2531 is a low power, high performance frequency
synthesizer system which includes a fully integrated delta-
sigma PLL and VCO with fully integrated tank circuit. The
third and fourth poles are also integrated and also adjust-
able. Also included are integrated ultra-low noise and high
precision LDOs for the PLL and VCO which give higher
supply noise immunity and also more consistent perfor-
mance. When combined with a high quality reference oscil-
lator, the LMX2531 generates very stable, low noise local
oscillator signals for up and down conversion in wireless
communication devices. The LMX2531 is a monolithic inte-
grated circuit, fabricated in an advanced BiCMOS process.
There are actually several different versions of this product,
for which the primary difference is frequency range.
Device programming is facilitated using a three-wire
MICROWIRE Interface that can operate down to 1.8 volts.
Supply voltage range is 2.8 to 3.2 Volts. The LMX2531 is
available in a 36 pin 6x6x0.8 mm Lead-Free Leadless Lead-
frame Package (LLP).
Target Applications
n
3G Cellular Base Stations (WCDMA,
TD-SCDMA,CDMA2000)
n
2G Cellular Base Stations (GSM/GPRS, EDGE,
CDMA1xRTT)
n
Wireless LAN
n
Broadband Wireless Access
n
Satellite Communications
n
Wireless Radio
n
Automotive
n
CATV Equipment
n
Instrumentation and Test Equipment
n
RFID Readers
Features
Multiple Frequency Options Available
— See Selection Guide Below
— Frequencies from: 765 MHz - 2790 MHz
PLL Features
— Fractional-N Delta Sigma Modulator Order
programmable up to 4th order
— FastLock/Cycle Slip Reduction with Timeout Counter
— Partially integrated, adjustable Loop Filter
— Very low phase noise and spurs
VCO Features
— Integrated tank inductor
— Low phase noise
Other Features
— 2.8 V to 3.2 V Operation
— Low Power-Down Current
— 1.8V MICROWIRE Support
— Package: 36 Lead LLP
Part
Low Band
765 - 818 MHz
795 - 850 MHz
831 - 885 MHz
863 - 920 MHz
917 - 1014 MHz
952 - 1137 MHz
High Band
1530 - 1636 MHz
1590 - 1700 MHz
1662 - 1770 MHz
1726 - 1840 MHz
1834 - 2028 MHz
1904 - 2274 MHz
LMX2531LQ1570E
LMX2531LQ1650E
LMX2531LQ1700E
LMX2531LQ1778E
LMX2531LQ1910E
LMX2531LQ2080E
LMX2531LQ2265E 1089 - 1200 MHz 2178 - 2400 MHz
LMX2531LQ2570E 1168 - 1395 MHz 2336 - 2790 MHz
PLLatinum
is a trademark of National Semiconductor Corporation.
October 2005
L
2005 National Semiconductor Corporation
DS201011
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LMX2531LQ1650E | PLLatinum High Performance Frequency Synthesizer System with Integrated VCO |
| LMX2531LQ1778E | PLLatinum High Performance Frequency Synthesizer System with Integrated VCO |
| LMX2531LQ2080E | PLLatinum High Performance Frequency Synthesizer System with Integrated VCO |
| LMX2531LQ2265E | OPTOCOUPLER, TRANSISTOR O/P; Channels, No. of:1; Voltage, isolation:5300V; Output type:Transistor; Current, input:60mA; Voltage, output max:55V; Case style:DIL; Temperature, operating range:-55(degree C) to ?(degree C); Approval RoHS Compliant: Yes |
| LMX2531LQ2570E | PLLatinum High Performance Frequency Synthesizer System with Integrated VCO |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LMX2531_07 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Performance Frequency Synthesizer System with Integrated VCO |
| LMX25311146EVAL | 功能描述:時鐘和定時器開發(fā)工具 LMX2531LQ1146 EVAL BOARD RoHS:否 制造商:Texas Instruments 產品:Evaluation Modules 類型:Clock Conditioners 工具用于評估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V |
| LMX25311146EVAL/NOPB | 功能描述:射頻開發(fā)工具 LMX25311146 EVAL MOD RoHS:否 制造商:Taiyo Yuden 產品:Wireless Modules 類型:Wireless Audio 工具用于評估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V |
| LMX25311226EVAL | 功能描述:時鐘和定時器開發(fā)工具 LMX2531LQ1226 EVAL BOARD RoHS:否 制造商:Texas Instruments 產品:Evaluation Modules 類型:Clock Conditioners 工具用于評估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V |
| LMX25311226EVAL/NOPB | 功能描述:射頻開發(fā)工具 LMX25311226 EVAL MOD RoHS:否 制造商:Taiyo Yuden 產品:Wireless Modules 類型:Wireless Audio 工具用于評估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V |
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