ADF4107BRU-REEL7

Overview

The ADF4107BRU-REEL7 is an integer-N PLL frequency synthesizer manufactured by Analog Devices Inc. in a TSSOP-16 package. It supports RF input frequencies from 1.0 GHz to 7.0 GHz with a sensitivity of -5/+5 dBm. The device operates on a 2.7 V to 3.3 V supply (AVDD/DVDD) and features a separate charge pump supply (VP) up to 5.5 V for extended tuning voltage. Key electrical parameters include a maximum phase detector frequency of 104 MHz, programmable charge pump currents ranging from 625 µA to 5 mA, and a typical operating current of 17 mA at 3 V. It includes a 3-wire serial interface, dual-modulus prescaler options (8/9, 16/17, 32/33, 64/65), and analog/digital lock detect capabilities.

Feature Summary

• 7.0 GHz bandwidth supporting local oscillator generation in wireless receivers and transmitters
• Programmable dual-modulus prescaler with options for 8/9, 16/17, 32/33, and 64/65 division ratios
• Separate VP pin allows charge pump supply up to 5.5 V while core logic operates at 2.7–3.3 V
• Integrated low-noise digital PFD, precision charge pump, and 14-bit reference divider

Applications

• Local oscillators for broadband wireless access systems
• Satellite communication upconversion and downconversion sections
• Base stations for wireless radio networks
• Wireless LAN infrastructure equipment
• General instrumentation requiring stable frequency synthesis

Procurement Notes

Verify the specific suffix REEL7 indicates reel packaging when sourcing. Confirm RoHS compliance status as historical data may vary by production batch. Ensure the B version temperature range (-40°C to +85°C) matches application requirements. Check for end-of-life notices or discontinuance announcements from Analog Devices prior to final design approval.

Selection Notes

Select this component when high-frequency operation up to 7 GHz is required without external frequency doublers. The separate VP supply is critical if the VCO requires a tuning voltage exceeding the 3.3 V logic supply. Ensure the reference input frequency falls within the 20 MHz to 250 MHz range. Verify that the desired output frequency can be achieved with the available prescaler values (P/P+1) and counter limits.

Part Context

This part belongs to the ADF4107 series of integer-N frequency synthesizers. The BRU suffix denotes the TSSOP-16 surface-mount package variant. Other variants in the family include the BCPZ (LFCSP-20 package). The device is designed to simplify system architecture by integrating the PFD, charge pump, and counters into a single chip, reducing the need for external discrete components in high-frequency PLL designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material. Designers should consult Analog Devices for current alternative recommendations or cross-reference with similar high-bandwidth integer-N synthesizers if this specific package or revision is unavailable.