LMX2324 Datasheet | National Semiconductor

LMX2324 PLLatinum 2.0 GHz Frequency Synthesizer for RF Personal munications PRELIMINARY November 1999 LMX2324 PLLatinum™ 2.0 GHz Frequency Synthesizer for RF Personal munications General Description The LMX2324 is a high performance frequency synthesizer with integrated 32/33 dual modulus prescaler designed for RF operation up to 2.0 GHz. Using a proprietary digital phase locked loop technique, the LMX2324’s linear phase detector characteristics can generate very stable, low noise control signals for UHF and VHF voltage controlled oscillators. Serial data is transferred into the LMX2324 via a three-line MICROWIRE™ interface (Data, LE, Clock). Supply voltage range is from 2.7V to 5.5V. The LMX2324 Features very low current consumption, typically 3.5 m A at 3V. The charge pump provides 4 m A output current. The LMX2324 is manufactured using National’s ABi C V Bi CMOS process and is packaged in a 16-pin TSSOP and a 16-pin Chip Scale Package (CSP). Features n RF operation up to 2.0 GHz n 2.7V to 5.5V operation n Low current consumption: ICC = 3.5 m A (typ) at VCC = 3.0V n Dual modulus prescaler: 32/33 n Internal balanced, low leakage charge pump Applications n Cellular telephone systems (GSM, NADC, CDMA, PDC) n Personal wireless munications (DCS-1800, DECT, CT-1+) n Wireless local area networks (WLANs) n Other wireless munication systems Functional Block Diagram DS101030-1 TRI-STATE ® is a registered trademark of National Semiconductor Corporation. MICROWIRE™ and PLLatinum™ are trademarks of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS101030 .national. Connection Diagrams TSSOP 16-Pin Package CSP 16-Pin Package DS101030-2 DS101030-3 Order Number LMX2324TM, LM2324TMX See NS Package Number MTC16 Top View Order Number LMX2324SLBX See NS Package Number SLB16A Pin Descriptions Pin No. TSSOP16 2 3 4 5 CSP16 1 2 3 4 Pin Name VP CPo GND f INB I/O - O - I Description Power supply for charge pump. Must be...