ADF4107BRU

Overview

The ADF4107BRU is an Integer-N PLL frequency synthesizer from Analog Devices Inc., housed in a 16-pin TSSOP 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, drawing a maximum current of 17 mA at 3 V. It features a separate charge pump supply (VP) up to 5.5 V for extended tuning voltage. Key specifications include a normalized phase noise floor of -223 dBc/Hz and a reference input range of 20 MHz to 250 MHz.

Feature Summary

• 7.0 GHz bandwidth with programmable dual-modulus prescaler options: 8/9, 16/17, 32/33, or 64/65
• Separate charge pump supply (VP) allows extended tuning voltage up to 5.5 V in 3 V systems
• Programmable charge pump currents ranging from 625 µA to 5 mA via RSET resistor
• Integrated analog and digital lock detect with programmable antibacklash pulse width

Applications

• Broadband wireless access systems
• Satellite communication systems
• Wireless LANs and base stations for wireless radio
• Instrumentation and local oscillator generation

Procurement Notes

Verify the specific suffix 'BRU' corresponds to the TSSOP-16 package variant when sourcing. Confirm RoHS compliance status as historical data may vary by manufacturing lot. Check for end-of-life notices or discontinuance alerts from Analog Devices prior to finalizing procurement plans.

Selection Notes

Select this component for applications requiring high-frequency synthesis up to 7 GHz with low phase noise. Ensure the external VCO tuning voltage does not exceed the VP pin limit of 5.5 V. Verify that the prescaler division ratio matches the required N-divider configuration for the target output frequency.

Part Context

The ADF4107 belongs to the ADF410x series of integer-N PLL frequency synthesizers. It shares functional similarities with the ADF4106 and ADF4108 but offers a higher RF bandwidth of 7.0 GHz compared to the 6.0 GHz limit of the ADF4106. It utilizes a 3-wire serial interface for register programming.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate the ADF4106BRUZ or ADF4108 for alternative integration if the 7.0 GHz bandwidth is not strictly required.