Features and Benefits
- 7.5 GHz bandwidth
- Maximum PFD frequency of 120 MHz
- Divide ratios of 8, 16, 32, or 64
- 2.7 V to 3.3 V power supply
- Separate charge pump supply (VP) allows extended tuning voltage in 3 V systems
- RSET control of charge pump current
- Hardware power-down mode
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
Product Lifecycle Recommended for New Designs
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.
Evaluation Kits (1)
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.
Documentation & Resources
Phase-Locked Loops for High-Frequency Receivers and Transmitters - Part 37/1/1999 Analog Dialogue
Phase-Locked Loops for High-Frequency Receivers and Transmitters - Part 25/1/1999 Analog Dialogue
Phase-Locked Loops for High-Frequency Receivers and Transmitters - Part 13/1/1999 Analog Dialogue
Tools & Simulations
ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.
ADIsimPLL enables the rapid and reliable evaluation of new high performance PLL products from ADI. It is the most comprehensive PLL Synthesizer design and simulation tool available today. Simulations performed include all key non-linear effects that are significant in affecting PLL performance. ADIsimPLL removes at least one iteration from the design process, thereby speeding the design- to-market.
ADF4007 Companion Parts
Recommended Linear Regulators
- For a step up, 3V to 5V regulator: ADP1613.
- For ultralow noise, 3V applications,150 mA output: ADP150.
- For high accuracy, 5V applications: ADP3334.
- For ultalow noise, 3V applications, 200 mA output: ADP151.
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.
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.