Part # LMX2315 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LMX2315 LMX2320 LMX2325 PLLatinum™ Frequency Synthesizer for RF Personal Communications LMX2325 2.5 GHz LMX2320 2.0 GHz LMX

Part Details:

for LMX2315/LMX2320/LMX2325 February 2002 RF Personal LMX2315/LMX2320/LMX2325PLLatinumTM Frequency Synthesizer for RF PersonalCommunications Communications LMX2325 2.5 GHzLMX2320 2.0 GHzLMX2315 1.2 GHzGeneral Description Features PLLatinum The LMX2315/2320/2325 s are high performance frequency n RF operation up to 2.5 GHz synthesizers with integrated prescalers designed for RF op- n 2.7V to 5.5V operation eration up to 2.5 GHz. They are fabricated using National s n Low current consumption ABiC IV BiCMOS process. n Dual modulus prescaler: LMX2325 A 64/65 or a 128/129 divide ratio can be selected for the LMX2325: 32/33 or 64/65 LMX2315 and LMX2320 RF synthesizer at input frequencies LMX2320/LMX2315: 64/65 or 128/129 of up to 1.2 GHz and 2.0 GHz, while 32/33 and 64/65 divide n Internal balanced, low leakage charge pump ratios are available in the 2.5 GHz LMX2325. Using a pro- n Power down feature for sleep mode: I = 30 µA (typ) CC Frequency prietary digital phase locked loop technique, the LMX2315/ at V = 3V CC 2320/2325 s linear phase detector characteristics can gen- n Small-outline, plastic, surface mount TSSOP, 0.173" erate very stable, low noise signals for controlling a local 2.5 wide oscillator. Serial data is transferred into the LMX2320 and the Applications GHz LMX2325 via a three line MICROWIRETM interface (Data,Enable, Clock). Supply voltage can range from 2.7V to 5.5V. n Cellular telephone systems The LMX2315, LMX2320 and the LMX2325 feature very low (GSM, IS-54, IS-95, (RCR-27) Synthesizer LMX2320 current consumption, typically 6 mA, 10 mA and 11 mA n Portable wireless communications (DECT, PHS) respectively. n CATV

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LMX2315.pdf Datasheet