Overview
The ADF4002BRUZ-RL7 is a frequency synthesizer produced by Analog Devices Inc. It is designed to implement local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. The device features a low noise digital phase frequency detector (PFD), a precision charge pump, a programmable reference divider, and a programmable N divider. This allows for the implementation of a complete phase-locked loop (PLL) when used 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 | 3.3 | 3.6 | V | |
| Operating Temperature Range | -40 | 85 | °C | ||
| RF Input Frequency (RFIN) | 5 | 400 | MHz | For RFIN < 5 MHz, ensure slew rate (SR) > 4 V/µs | |
| REFIN Input Frequency | 20 | 300 | MHz | For REFIN < 20 MHz, ensure SR > 50 V/µs | |
| Phase Detector Frequency | 104 | MHz | ABP[2:1] = 00 (2.9 ns antibacklash pulse width) | ||
| Charge Pump Current (High Value) | 5 | mA | RSET = 5.1 kΩ | ||
| Charge Pump Current (Low Value) | 625 | µA | RSET = 5.1 kΩ | ||
| Package | 16-TSSOP |
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 settings
- Hardware and software power-down mode
- Programmable charge pump currents
- Can be used as a standalone PFD and charge pump by programming R and N to 1
Applications
- Clock conditioning and generation
- Intermediate Frequency (IF) and Local Oscillator (LO) generation in wireless receivers and transmitters
- Phase-locked loop (PLL) implementation with external loop filter and voltage-controlled oscillator (VCO)
- Supports defense and aerospace applications with enhanced product versions (e.g., ADF4002-EP)
Q & A
- What is the primary function of the ADF4002BRUZ-RL7?
The ADF4002BRUZ-RL7 is a frequency synthesizer used to implement local oscillators in wireless receivers and transmitters.
- What are the key components of the ADF4002BRUZ-RL7?
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-RL7?
The operating temperature range is -40°C to +85°C.
- What is the maximum RF input frequency for the ADF4002BRUZ-RL7?
The maximum RF input frequency is 400 MHz.
- Can the ADF4002BRUZ-RL7 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 types of lock detect does the ADF4002BRUZ-RL7 support?
The device supports both analog and digital lock detect with adjustable settings.
- What is the package type of the ADF4002BRUZ-RL7?
The package type is 16-TSSOP.
- What are some common applications of the ADF4002BRUZ-RL7?
Common applications include clock conditioning, IF and LO generation, and PLL implementation.
- Does the ADF4002BRUZ-RL7 support defense and aerospace applications?
Yes, enhanced product versions like the ADF4002-EP support defense and aerospace applications.
- How is data programmed into the ADF4002BRUZ-RL7?
Data is clocked into the 24-bit input shift register on each rising edge of CLK, and transferred to one of four latches on the rising edge of LE.
