LMX2487
Overview
The LMX2487 device is a low power, high performance delta-sigma fractional-N PLL with an auxiliary integer-N PLL. It is fabricated using TI’s advanced process.
- 1 Quadruple Modulus Prescaler for Lower Divides - RF PLL: 16/17/20/21 or 32/33/36/37 - IF PLL: 8/9 or 16/17
- Advanced Delta Sigma Fractional Compensation - 12-Bit or 22-Bit Selectable Fractional Modulus - Up to 4th Order Programmable Delta-Sigma Modulator
- Improved Lock Times - Fastlock / Cycle Slip Reduction With SingleWord Write to Change Frequencies - Integrated Time-Out Counter
- Wide Operating Range - LMX2487 RF PLL: 1.0 GHz to 6.0 GHz
- Useful Features - Digital Lock Detect Output - Hardware and Software Power-Down Control - On-Chip Input Frequency Doubler - RF Phase Comparison Detector Up to 50 MHz - 2.5-V to 3.6-V Operation With ICC = 8.5 mA
