Electronic Components Datasheet Search |
|
LMX2512LQ0967 Datasheet(PDF) 1 Page - National Semiconductor (TI) |
|
|
LMX2512LQ0967 Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 18 page LMX2502/LMX2512 PLLatinum™ 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 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 n Korean Cellular CDMA Systems Functional Block Diagram 20068001 PLLatinum™ is a trademark of National Semiconductor Corporation. June 2003 © 2003 National Semiconductor Corporation DS200680 www.national.com |
Similar Part No. - LMX2512LQ0967 |
|
Similar Description - LMX2512LQ0967 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |