Overview
The ADF4155BCPZ-RL7 is an integer-N/fractional-N Phase-Locked Loop (PLL) frequency synthesizer produced by Analog Devices Inc. This device is designed to implement fractional-N or integer-N PLL frequency synthesizers when used with an external loop filter, external voltage-controlled oscillator (VCO), and external reference frequency. It supports external VCO parts up to an 8 GHz operating frequency, making it versatile for various high-frequency applications.
The ADF4155BCPZ-RL7 features a high-resolution 38-bit modulus, allowing for the synthesis of exact frequencies with 0 Hz error. The device operates with a nominal power supply of 3.3 V ± 5% and can be powered down when not in use. It is packaged in a 24-lead, 4 mm × 4 mm LFCSP (Lead Frame Chip Scale Package) and is suitable for a wide range of wireless and microwave applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Description |
|---|---|---|---|---|---|
| Input Frequency Range | 500 | 8000 | MHz | ||
| Phase Frequency Detector (PFD) | 125 | MHz | |||
| Power Supply | 3.135 | 3.3 | 3.465 | V | |
| Operating Temperature | -40 | 85 | °C | ||
| Package Type | 24-lead LFCSP | ||||
| Logic Compatibility | 1.8 V | ||||
| In-band Phase Noise | -98 | dBc/Hz | At 10 kHz offset from 5.8 GHz carrier |
Key Features
- High-resolution 38-bit modulus for exact frequency synthesis with 0 Hz error.
- Fractional-N and integer-N synthesizer capabilities.
- Phase frequency detector (PFD) up to 125 MHz.
- Separate charge pump supply (VP) allows extended tuning voltage in 5 V systems.
- Differential and single-ended reference inputs.
- Programmable dual-modulus prescaler (P) of 4/5 or 8/9.
- Programmable output power level.
- Analog and digital lock detect.
- 3-wire serial interface for control of all on-chip registers.
- VCO frequency can be divided by 1, 2, 4, 8, 16, 32, or 64.
Applications
- Wireless infrastructure (W-CDMA, TD-SCDMA, WiMAX, GSM, PCS, DCS, DECT).
- Point to point/point to multipoint microwave links.
- Test equipment.
- Wireless LANs.
- CATV equipment.
- Clock generation.
Q & A
- What is the input frequency range of the ADF4155BCPZ-RL7?
The input frequency range is from 500 MHz to 8000 MHz.
- What is the maximum operating frequency of the external VCO supported by the ADF4155BCPZ-RL7?
The maximum operating frequency of the external VCO is up to 8 GHz.
- What is the resolution of the programmable modulus in the ADF4155BCPZ-RL7?
The programmable modulus has a high resolution of 38 bits.
- What are the power supply requirements for the ADF4155BCPZ-RL7?
The device operates with a nominal power supply of 3.3 V ± 5%.
- What is the package type of the ADF4155BCPZ-RL7?
The device is packaged in a 24-lead LFCSP (Lead Frame Chip Scale Package).
- What are the logic compatibility levels for the ADF4155BCPZ-RL7?
The device is compatible with 1.8 V logic levels.
- What is the typical in-band phase noise of the ADF4155BCPZ-RL7?
The typical in-band phase noise is -98 dBc/Hz at a 10 kHz offset from a 5.8 GHz carrier.
- What are the key applications of the ADF4155BCPZ-RL7?
The device is used in wireless infrastructure, point to point/multipoint microwave links, test equipment, wireless LANs, CATV equipment, and clock generation.
- How is the control of all on-chip registers achieved in the ADF4155BCPZ-RL7?
Control of all on-chip registers is through a simple 3-wire serial interface.
- Can the ADF4155BCPZ-RL7 be powered down when not in use?
Yes, the device can be powered down when not in use.
