LMX2515  Product Folder

LMX2515 is a highly integrated, high performance, low power frequency synthesizer system optimized for Japan PDC mobile handsets. Using a proprietary digital phase locked loop technique, LMX2515 generates very stable, low noise local oscillator signals for up and down conversion in wireless communications devices.

LMX2515 includes a voltage controlled oscillator (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. The LMX2515LQ0701 supports the Japan PDC800 band and the LMX2515LQ1321 supports Japan PDC1500 band.

Serial data is transferred to the device via a three-wire MICROWIRE interface (DATA, LE, CLK).

Operating supply voltage ranges from 2.5 V to 3.3 V. LMX2515 features low current consumption.

LMX2515 is available in a 28-pin leadless leadframe package (LLP).

• Small size 5.0 mm X 5.0 mm X 0.75 mm 28-Pin LLP Package
• 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 Frequency Resolution Down to 20 kHz
• Supports Various Reference Frequencies 12.6/14.4/25.2/26.0 MHz
• Fast Lock Time: 300 µs
• Low Current Consumption
• 2.5 V to 3.3 V operation
• Digital Filtered Lock Detect
• Hardware and Software Power Down Control

• Japan PDC systems at 800 MHz frequency band.
• Japan PDC systems at 1500 MHz frequency band.