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參數(shù)資料
| 型號(hào)： | LMX2532 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | PLLatinum Frequency Synthesizer System with Integrated VCOs |
| 中文描述： | PLLatinum頻率合成系統(tǒng)的集成和VCO |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 189K |
| 代理商： | LMX2532 |
LMX2522/LMX2532
PLLatinum
Frequency Synthesizer System with
Integrated VCOs
General Description
LMX2522 and LMX2532 are highly integrated, high perfor-
mance, low power frequency synthesizer systems optimized
for Korean PCS (K-PCS) with GPS and Korean Cellular
(K-Cellular) with GPS, CDMA (1xRTT, IS-95) mobile hand-
sets. Using a proprietary digital phase locked loop tech-
nique, LMX2522 and LMX2532 generate very stable, low
noise local oscillator signals for up and down conversion in
wireless communications devices.
LMX2522 and LMX2532 include a RF voltage controlled
oscillator (VCO), a GPS VCO, a loop filter, and a fractional-N
RF PLL based on a delta sigma modulator. In concert these
blocks form a closed loop RF and GPS synthesizer system.
LMX2522 supports the Korean PCS band with GPS and
LMX2532 supports the Korean Cellular band with GPS.
LMX2522 and LMX2532 include an Integer-N IF PLL also.
For more flexible loop filter designs, the IF PLL includes a
4-level programmable charge pump. Together with an exter-
nal VCO and loop filter, LMX2522 and LMX2532 make a
complete closed loop IF synthesizer system.
Serial data is transferred to the device via a three-wire
MICROWIRE interface (DATA, LE, CLK).
Operating supply voltage ranges from 2.7 V to 3.3 V.
LMX2502 and LMX2512 feature low current consumption:
17 mA at 2.8 V.
LMX2522 and LMX2532 are available in a 28-pin leadless
leadframe package (LLP).
Features
n
Small Size
Small 5.0 mm x 5.0 mm x 0.75 mm 28-Pin LLP Package
n
RF/GPS Synthesizer System
Integrated RF VCO
Integrated GPS VCO
Integrated Loop Filter
Low Spurious, Low Phase Noise Fractional-N RF PLL
Based on 11-bit Delta Sigma Modulator
10 kHz Frequency Resolution
n
IF Synthesizer System
Integer-N IF PLL
Programmable Charge Pump Current Levels
Programmable Frequencies
n
Supports Various Reference Oscillator Frequencies
19.20/19.68 MHz
n
Fast Lock Time: 500 μs
n
Low Current Consumption
17 mA at 2.8 V
n
2.7 V to 3.3 V Operation
n
Digital Filtered Lock Detect Output
n
Hardware and Software Power Down Control
Applications
n
Korean PCS CDMA Systems with GPS
n
Korean Cellular CDMA Systems with GPS
Functional Block Diagram
20067201
PLLatinum is a trademark of National Semiconductor Corporation.
June 2003
L
2003 National Semiconductor Corporation
DS200672
www.national.com
相關(guān)PDF資料 |
PDF描述 |
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| LMX2542LQ2121 | PLLatinum Cellular and GPS Frequency Synthesizer System with Integrated VCO |
| LMX2542LQX2121 | PLLatinum Cellular and GPS Frequency Synthesizer System with Integrated VCO |
| LMX2542 | PLLatinum Cellular and GPS Frequency Synthesizer System with Integrated VCO |
| LMX2604 | Triple-band VCO for GSM900/DCS1800/PCS1900 |
| LMX2604LQ | Triple-band VCO for GSM900/DCS1800/PCS1900 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX25320967EVAL/NOPB | 功能描述:EVALUATION BOARD FOR LMX2532XXXX RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 過時(shí)/停產(chǎn)零件編號(hào) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感器類型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關(guān)產(chǎn)品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| LMX25321065EVAL/NOPB | 功能描述:EVALUATION BOARD FOR LMX2532XXXX RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 過時(shí)/停產(chǎn)零件編號(hào) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感器類型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關(guān)產(chǎn)品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| LMX2532LQ0967 | 制造商:Rochester Electronics LLC 功能描述:PLL+VCO CDMA+GPS - Bulk 制造商:Texas Instruments 功能描述:IC PLL VCO SMD 2532 LLP-28 |
| LMX2532LQ0967/NOPB | 功能描述:IC FREQ SYNTH DUAL W/VCO 28LLP RoHS:是 類別:RF/IF 和 RFID >> RF 其它 IC 和模塊 系列:PLLatinum™ 標(biāo)準(zhǔn)包裝:100 系列:* |
| LMX2532LQ1065 | 制造商:Rochester Electronics LLC 功能描述:PLL+VCO CDMA+GPS - Bulk 制造商:Texas Instruments 功能描述:IC PLL VCO SMD 2532 LLP-28 |
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