Overview
The ADF4110BRU, produced by Analog Devices Inc., is a member of the ADF4110 family of frequency synthesizers. These devices are designed to implement local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. They operate with a power supply ranging from 2.7 V to 5.5 V and can be powered down when not in use, making them energy-efficient. The ADF4110BRU features a low noise digital phase frequency detector (PFD), a precision charge pump, a programmable reference divider, programmable A and B counters, and a dual-modulus prescaler (P/P + 1).
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Operating Temperature Range | –40°C to +85°C | °C | B Version |
| Power Supply Voltage | 2.7 V to 5.5 V | V | |
| RF Input Frequency | 80 MHz to 550 MHz | MHz | ADF4110, ensure slew rate (SR) > 30 V/µs for lower frequencies |
| RF Input Sensitivity | –15 dBm to 0 dBm | dBm | |
| PFD Frequency | Up to 200 kHz | kHz | |
| Charge Pump Current | Programmable | ||
| Antibacklash Pulse Width | Programmable | ||
| Interface | 3-wire serial interface | ||
| Lock Detect | Analog and digital lock detect |
Key Features
- Low noise digital phase frequency detector (PFD) and precision charge pump
- Programmable reference divider, A and B counters, and dual-modulus prescaler (P/P + 1)
- Programmable charge pump currents and antibacklash pulse width
- 3-wire serial interface for control of on-chip registers
- Analog and digital lock detect
- Hardware and software power-down mode
- Separate charge pump supply (VP) allows extended tuning voltage in 3 V systems
Applications
- Base stations for wireless radio (GSM, PCS, DCS, CDMA, WCDMA)
- Wireless handsets (GSM, PCS, DCS, CDMA, WCDMA)
- Wireless LANs
- Communications test equipment
- CATV equipment
Q & A
- What is the operating temperature range of the ADF4110BRU?
The operating temperature range is –40°C to +85°C.
- What is the power supply voltage range for the ADF4110BRU?
The power supply voltage range is from 2.7 V to 5.5 V.
- What are the RF input frequency ranges for the ADF4110BRU?
The RF input frequency range for the ADF4110 is 80 MHz to 550 MHz.
- Can the charge pump current be programmed?
- What type of interface does the ADF4110BRU use for control?
The ADF4110BRU uses a 3-wire serial interface.
- Does the ADF4110BRU have power-down modes?
- What are some common applications of the ADF4110BRU?
- Can the antibacklash pulse width be programmed?
- Does the ADF4110BRU support analog and digital lock detect?
- What is the purpose of the separate charge pump supply (VP)?
The separate charge pump supply (VP) allows extended tuning voltage in 3 V systems.
