Features and Benefits
- ADF4210: 550 MHz/1.2 GHz
- ADF4211: 550 MHz/2.0 GHz
- ADF4212: 1.0 GHz/2.7 GHz
- ADF4213: 1.0 GHz/3 GHz
- 2.7 V to 5.5 V Power Supply
- Separate Charge Pump Supply (VP) Allows Extended Tuning Voltage in 3 V Systems
- Programmable Dual Modulus Prescaler RF and IF: 8/9, 16/17, 32/33, 64/65
- Programmable Charge Pump Currents
- 3-Wire Serial Interface
- Analog and Digital Lock Detect
- Fastlock Mode
- Power-Down Mode
The ADF4210/ADF4211/ADF4212/ADF4213 is a dual frequency synthesizer which can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. They can provide the LO for both the RF and IF sections. They consist of a 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 (12-bit) counters, in conjunction with the dual modulus prescaler (P/P+1), implement an N divider (N=BP+A). In addition, the 15-bit reference counter (R Counter), allows selectable REFIN frequencies at the PFD input. A complete PLL (Phase-Locked Loop) can be implemented if the synthesizers are used with an external loop filter and VCO's (Voltage Controlled Oscillators)Control of all the on-chip registers is via a simple 3-wire interface. The devices operate with a 3V ( ± 10%) or 5V( ± 10%) power supply 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.
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.
ADF4213 Companion Parts
Recommended Linear Regulators
- For a step up, 3V to 5V regulator: ADP1613.
- For high accuracy, 5V applications: ADP3334.
- 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.