Overview
The ADF4002BRUZ is a high-performance frequency synthesizer produced by Analog Devices Inc. This device is designed to implement local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It features a low noise digital phase frequency detector (PFD), a precision charge pump, a programmable reference divider, and a programmable N divider. The ADF4002BRUZ can be used to form a complete phase-locked loop (PLL) when combined with an external loop filter and voltage-controlled oscillator (VCO).
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply Voltage (AVDD, DVDD) | 2.7 | 3.0 | 3.3 | V | |
| Charge Pump Supply (VP) | 2.7 | 5.5 | V | ||
| Operating Temperature Range | -40 | 85 | °C | ||
| Phase Detector Frequency | 104 | MHz | |||
| DATA to CLK Setup Time | 10 | ns | |||
| DATA to CLK Hold Time | 10 | ns | |||
| CLK High Duration | 25 | ns | |||
| CLK Low Duration | 25 | ns | |||
| CLK to LE Setup Time | 10 | ns | |||
| LE Pulse Width | 20 | ns |
Key Features
- Low noise digital phase frequency detector (PFD) and precision charge pump.
- Programmable reference divider (14-bit R counter) and programmable N divider (13-bit N counter).
- 3-wire serial interface for programming.
- Analog and digital lock detect with adjustable lock detect thresholds.
- Hardware and software power-down mode.
- Separate charge pump supply (VP) allowing extended tuning voltage in 3 V systems.
- Programmable charge pump currents.
Applications
- Clock conditioning and generation.
- Intermediate Frequency (IF) and Local Oscillator (LO) generation in wireless receivers and transmitters.
- Implementation in phase-locked loops (PLLs) with external loop filters and voltage-controlled oscillators (VCOs).
- Defense and aerospace applications (for the ADF4002-EP version).
Q & A
- What is the primary function of the ADF4002BRUZ?
The ADF4002BRUZ is a frequency synthesizer used to implement local oscillators in wireless receivers and transmitters.
- What are the key components of the ADF4002BRUZ?
The device includes a low noise digital phase frequency detector (PFD), a precision charge pump, a programmable reference divider, and a programmable N divider.
- What is the operating temperature range of the ADF4002BRUZ?
The operating temperature range is from -40°C to +85°C.
- What is the maximum phase detector frequency of the ADF4002BRUZ?
The maximum phase detector frequency is 104 MHz.
- How is the data programmed into the ADF4002BRUZ?
Data is clocked into the 24-bit input shift register on each rising edge of the CLK signal and transferred to one of four latches on the rising edge of the LE signal.
- What are the lock detect mechanisms available in the ADF4002BRUZ?
The device features both analog and digital lock detect mechanisms with adjustable thresholds.
- Can the ADF4002BRUZ be used as a standalone PFD and charge pump?
Yes, by programming R and N to 1, the device can be used as a standalone PFD and charge pump.
- What is the package type of the ADF4002BRUZ?
The device is available in a 16-TSSOP package.
- What are some common applications of the ADF4002BRUZ?
Common applications include clock conditioning, IF and LO generation, and implementation in PLLs.
- Does the ADF4002BRUZ support defense and aerospace applications?
The ADF4002-EP version is specifically designed to support defense and aerospace applications.
