LMX2430_16 Datasheet, PDF (1/53 Pages) Texas Instruments – Dual High-Frequency Synthesizer

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LMX2430, LMX2433, LMX2434
SNAS187D – FEBRUARY 2003 – REVISED JANUARY 2016
LMX243x PLLatinum™ Dual High-Frequency Synthesizer for RF Personal
Communications
1 Features
•1 Low Current Consumption
– LMX2430 (RF/IF): 2.8 mA/ 1.4 mA
– LMX2433 (RF/IF): 3.2 mA/ 2 mA
– LMX2434 (RF/IF): 4.6 mA/ 2.4 mA
• 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 mA
• 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
1
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.