LMX2434 Datasheet | Texas Instruments

Features - 1 Low Current Consumption - LMX2430 (RF/IF): 2.8 m A/ 1.4 m A - LMX2433 (RF/IF): 3.2 m A/ 2 m A - LMX2434 (RF/IF): 4.6 m A/ 2.4 m A - 2.25-V to 2.75-V Operation - Synchronous/Asynchronous Power Down - Multiple PLL Options: - LMX2430 (RF/IF): 3 GHz /0.8 GHz - LMX2433 (RF/IF): 3.6 GHz /1.7 GHz - LMX2434 (RF/IF): 5 GHz /2.5 GHz - Programmable Charge-Pump Current Levels - RF and IF: 1 or 4 m A - Fastlock With Integrated Time-Out Counters - Digital Filtered Lock-Detect Output - Analog Lock Detect (Push-Pull / Open-Drain) - 1.8-V MICROWIRE Logic Interface 2 Applications - Mobile Handsets - Cordless Handsets - Wireless Data - Cable TV Tuners 3 Description Using a proprietary digital-phase, locked-loop technique, the LMX243x devices generate very stable, low-noise control signals for RF and IF voltage controlled oscillators. Both the RF and IF synthesizers include a two-level programmable charge pump. Both the RF and IF PLLs have dedicated fastlock circuitry with integrated time-out counters which require only a single word write to power up or change frequencies. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) LMX243x ULGA (20) TSSOP (20) 3.50 mm × 3.50 mm 6.50 mm × 4.40 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Functional Block Diagram NOTE: 1 (2) refers to Pin 1 of the 20-Pin ULGA and Pin 2 of the 20-Pin TSSOP An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. LMX2430, LMX2433, LMX2434 SNAS187D - FEBRUARY 2003 - REVISED JANUARY...