音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

LMX2502LQX1635 Datasheet

  • LMX2502LQX1635

  • PLLatinum⑩ Frequency Synthesizer System with Integrated VCO

  • 18頁

  • NSC

掃碼查看芯片數(shù)據(jù)手冊

上傳產品規(guī)格書

PDF預覽

LMX2502/LMX2512 Frequency Synthesizer System with Integrated VCO
June 2003
LMX2502/LMX2512
PLLatinum
鈩?/div>
Frequency Synthesizer System with
Integrated VCO
General Description
LMX2502 and LMX2512 are highly integrated, high perfor-
mance, low power frequency synthesizer systems optimized
for Korean PCS and Korean Cellular CDMA (1xRTT, IS-95)
mobile handsets. Using a proprietary digital phase locked
loop technique, LMX2502 and LMX2512 generate very
stable, low noise local oscillator signals for up and down
conversion in wireless communications devices.
LMX2502 and LMX2512 include a voltage controlled oscil-
lator (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 synthesizer system. LMX2502 supports the
Korean PCS band and LMX2512 supports the Korean Cel-
lular band.
LMX2502 and LMX2512 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, LMX2502 and LMX2512 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.
LMX2502 and LMX2512 are available in a 28-pin leadless
leadframe package (LLP).
Features
n
Small Size
5.0 mm X 5.0 mm X 0.75 mm 28-Pin LLP Package
n
RF Synthesizer System
Integrated RF 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 Frequency
n
Supports Various Reference Frequencies
19.20/19.68 MHz
n
Fast Lock Time: 500 碌s
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
n
Korean Cellular CDMA Systems
Functional Block Diagram
20068001
PLLatinum
鈩?/div>
is a trademark of National Semiconductor Corporation.
漏 2003 National Semiconductor Corporation
DS200680
www.national.com

LMX2502LQX1635 產品屬性

  • 4,500

  • RF/IF 和 RFID

  • RF 其它 IC 和模塊

  • PLLatinum™

  • 頻率合成器

  • 1635MHz

  • CDMA，PCS

  • 集成式 PLL 和 VCO

  • 28-WFQFN 裸露焊盤

  • 帶卷 (TR)

  • LMX25021635EVAL-ND - EVALUATION BOARD FOR LMX25021635

LMX2502LQX1635相關型號PDF文件下載

  • 型號
    版本
    描述
    廠商
    下載
  • 英文版
    1.9 GHz Power Amplifier
    NSC
  • 英文版
    1.9 GHz Power Amplifier
    NSC [Natio...
  • 英文版
    0.1 GHz to 2.0 GHz Low Noise Amplifier/Mixer for RF Personal...
    NSC
  • 英文版
    0.1 GHz to 2.0 GHz Low Noise Amplifier/Mixer for RF Personal...
    NSC [Natio...
  • 英文版
    Intermediate Frequency Receiver
    NSC
  • 英文版
    Intermediate Frequency Receiver
    NSC [Natio...
  • 英文版
    PLLatinumTM 160 MHz Frequency Synthesizer for RF Personal Co...
    NSC
  • 英文版
    PLLatinumTM 160 MHz Frequency Synthesizer for RF Personal Co...
    NSC [Natio...
  • 英文版
    PLLatinumTM 550 MHz Frequency Synthesizer for RF Personal Co...
    NSC
  • 英文版
    PLLatinumTM 550 MHz Frequency Synthesizer for RF Personal Co...
    NSC [Natio...
  • 英文版
    PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal ...
    NSC
  • 英文版
    PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal ...
    NSC [Natio...
  • 英文版
    PLLatinum⑩ Ultra Low Power Frequency Synthesizer for RF Per...
    NSC
  • 英文版
    PLLatinum⑩ Ultra Low Power Frequency Synthesizer for RF Per...
    NSC [Natio...
  • 英文版
    PLLatinum⑩ Ultra Low Power Frequency Synthesizer for RF Per...
    NSC
  • 英文版
    PLLatinum⑩ Ultra Low Power Frequency Synthesizer for RF Per...
    NSC [Natio...
  • 英文版
    1.2 GHz Frequency Synthesizer for RF Personal Communications
    NSC
  • 英文版
    1.2 GHz Frequency Synthesizer for RF Personal Communications
    NSC [Natio...
  • 英文版
    Frequency Synthesizer for RF Personal Communications
    NSC
  • 英文版
    1.2 GHz Frequency Synthesizer for RF Personal Communications
    NSC [Natio...

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務：
賣家服務：
技術客服：

0571-85317607

網站技術支持

13606545031

客服在線時間周一至周五
9:00-17:30

關注官方微信號，
第一時間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務的動力！意見一經采納，將有感恩紅包奉上哦！