High Frequency Divider/PLL Synthesizer
The ADF4007 is a high frequency divider/PLL synthesizer that can be used in a variety of communications applications. It can operate to 7.5 GHz on the RF side and to 120 MHz at the PFD. It consists of a low noise digital PFD (phase frequency detec-tor), a precision charge pump, and a divider/prescaler. The divider/prescaler value can be set by two external control pins to one of four values (8, 16, 32, or 64). The reference divider is permanently set to 2, allowing an external REFIN frequency of up to 240 MHz.
A complete PLL (phase-locked loop) can be implemented if the synthesizer is used with an external loop filter and a VCO (voltage controlled oscillator). Its very high bandwidth means that frequency doublers can be eliminated in many high frequency systems, simplifying system architecture and reducing cost.
- Satellite communications
- Broadband wireless access
- Wireless LANs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
This board is designed to allow the user to evaluate the performance of the ADF4007 frequency synthesizer for PLLs (phase locked loops). It contains the ADF4007 synthesizer, links for choosing the divide ratio (8, 16, 32, and 64), an SMA connector for the reference input, and an RF input and output.
Recommended Linear Regulators
Recommended Divide-by-4 Prescaler
- For a low noise, low power, fixed RF block: ADF5001 .
Recommended PLL Active Filter
- For an ultralow noise, rail-to-rail amplifier: OP184 .
Phase Locked Loops for High-Frequency Receivers and Transmitters – Part 1
Phase-Locked Loops for High-Frequency Receivers and Transmitters - Part 2
Phase Locked Loops for High-Frequency Receivers and Transmitters – Part 3
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.