Features and Benefits
- ADF4110: 550 MHz
- ADF4111: 1.2 GHz
- ADF4112: 3.0 GHz
- ADF4113: 4.0 GHz
- +2.7 V to +5.5 V Power Supply
- Separate Vp Allows Extended Tuning Voltage in 3V Systems
- Programmable Charge Pump Currents
- Programmable Dual Modulus Prescaler 8/9, 16/17, 32/33, 64/65
- Programmable Anti-Backlash Pulse Width
- 3-Wire Serial Interface
- Digital Lock Detect
- Power Down Mode
The ADF4110 family of frequency synthesizers can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. They consist of low-noise digital PFD (Phase Frequency Detector), a precision charge pump, a programmable reference divider, programmable A and B counters and a dual modulus prescaler (P/P+1). The A (6-bit) and B (13-bit) counters, in conjunction with the dual modulus prescaler (P/P+1), implement an N divider (N = BP+A). In addition, the 14-bit reference counter (R Counter), allows selectable REFIN frequencies at the PFD input. A complete PLL (Phase-Locked Loop) can be implemented if the synthesizer is used with an external loop filter and VCO (Voltage Controlled Oscillator).
Control of all the on-chip registers is via a simple 3-wire interface. The devices operate with a power supply ranging from 2.7 V to 5.5 V and can be powered down when not in use.
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
This page contains ordering information for the evaluation board used to evaluate the ADF4112 Single, Integer-N 3.0 GHz PPL with Programmable Prescaler and Charge Pump.
This evaluation board requires an SDP Controller board for connection to the PC. The SDP controller board connects to the PC via USB 2.0. The evaluation board will connect to the SDP controller board. The evaluation board cannot be connected directly to the PC. The evaluation software running on the PC will communicate through the SDP Controller board, to the evaluation board. The SDP Controller board is a separate list item in the ordering guide below (EVAL-SDP-CS1Z). If you have not previously purchased an SDP Controller board, please do so to ensure a full evaluation setup.
Documentation & Resources
Ask the Applications Engineer—30: PLL Synthesizers5/1/2002 Analog Dialogue
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
Tools & Simulations
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.
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.
ADF4112 Companion Parts
Recommended Linear Regulators
- For high accuracy, 5V applications: ADP3334.
- For a step up, 3V to 5V regulator: ADP1613.
- For ultalow noise, 3V applications, 200 mA output: ADP151.
- For ultralow noise, 3V applications,150 mA output: ADP150.
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.
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.
Support & Discussions
Sample & Buy
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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.