Overview
The ADF4355BCPZ from Analog Devices Inc. is a highly versatile and advanced phase-locked loop (PLL) frequency synthesizer. This device is capable of implementing both fractional-N and integer-N PLL frequency synthesizers when used with an external loop filter and an external reference frequency. It features an integrated voltage-controlled oscillator (VCO) with a fundamental output frequency range of 3400 MHz to 6800 MHz, and through a series of frequency dividers, it can generate RF output frequencies as low as 54 MHz. The ADF4355BCPZ is designed for a wide range of applications requiring precise frequency synthesis, including wireless infrastructure, point-to-point microwave links, satellites, and test equipment.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Analog and Digital Power Supplies | 3.15 V | 3.3 V | 3.45 V | V | |
| Charge Pump and VCO Power Supplies | 4.75 V | 5.0 V | 5.25 V | V | |
| VCO Frequency Range | 3400 MHz | 6800 MHz | MHz | Fundamental VCO range | |
| RF Output Frequency Range | 53.125 MHz | 6800 MHz | MHz | ||
| Output Power Level | Programmable | ||||
| Operating Temperature | -40°C | 85°C | °C | ||
| Package Type | 32-Pin LFCSP | ||||
| Logic Compatibility | 1.8 V | V |
Key Features
- High resolution 38-bit modulus for fractional-N and integer-N PLL frequency synthesizers
- Integrated VCO with a fundamental output frequency range of 3400 MHz to 6800 MHz
- Programmable dual modulus prescaler of 4/5 or 8/9
- Programmable output power level and RF output mute function
- 3-wire serial interface for control of all on-chip registers
- Analog and digital lock detect
- Hardware and software power-down modes
- Low phase noise and frequency pushing/pulling characteristics
Applications
- Wireless infrastructure (W-CDMA, TD-SCDMA, WiMAX, GSM, PCS, DCS, DECT)
- Point-to-point and point-to-multipoint microwave links
- Satellites and VSATs
- Test equipment and instrumentation
- Clock generation in various RF and microwave systems
- RF front-end solutions and antenna control systems
Q & A
- What is the primary function of the ADF4355BCPZ?
The ADF4355BCPZ is a phase-locked loop (PLL) frequency synthesizer capable of implementing both fractional-N and integer-N PLL frequency synthesizers.
- What is the frequency range of the integrated VCO?
The integrated VCO has a fundamental output frequency range of 3400 MHz to 6800 MHz.
- What are the power supply requirements for the ADF4355BCPZ?
The device operates with analog and digital power supplies ranging from 3.15 V to 3.45 V, and charge pump and VCO supplies from 4.75 V to 5.25 V.
- What is the logic compatibility of the ADF4355BCPZ?
The logic compatibility is 1.8 V.
- What are the key applications of the ADF4355BCPZ?
The key applications include wireless infrastructure, point-to-point microwave links, satellites, test equipment, and clock generation in RF and microwave systems.
- How is the RF output power level controlled?
The RF output power level is programmable, and the RF output can also be muted via a pin or software control.
- What is the operating temperature range of the ADF4355BCPZ?
The operating temperature range is from -40°C to 85°C.
- What type of package does the ADF4355BCPZ come in?
The device comes in a 32-Pin LFCSP package.
- Does the ADF4355BCPZ support power-down modes?
Yes, it supports both hardware and software power-down modes.
- How is the device controlled?
The device is controlled through a simple 3-wire serial interface.
