ADF4110BRU-REEL7

Overview

The ADF4110BRU-REEL7 is a single-channel, integer-N phase-locked loop (PLL) frequency synthesizer manufactured by Analog Devices Inc. It operates within an RF input frequency range of 50 MHz to 550 MHz and supports power supply voltages from 2.7 V to 5.5 V. The device integrates a low-noise digital phase-frequency detector, a precision charge pump with programmable current settings, and a dual-modulus prescaler. It utilizes a 3-wire serial interface for register control and features hardware and software power-down modes. The component is housed in a 16-pin TSSOP package.

Feature Summary

• Integrated integer-N PLL frequency synthesizer with a maximum RF input frequency of 550 MHz
• Programmable dual-modulus prescaler options including 8/9, 16/17, 32/33, and 64/65
• Separate charge pump supply pin (VP) allows extended tuning voltage up to 6.0 V in 3 V systems
• Low power consumption with typical operating current of 4.5 mA at 5 V and sleep mode current of 1 µA

Applications

• Local oscillators for wireless base stations (GSM, PCS, DCS, CDMA, WCDMA)
• Frequency synthesis in wireless handsets and mobile radios
• Wireless LAN infrastructure components
• Communications test equipment signal generation
• CATV equipment local oscillator sources

Procurement Notes

Verify the specific suffix 'RL7' against the manufacturer's official ordering guide to confirm reel quantity and packaging specifications. Ensure the B version industrial temperature rating (-40°C to +85°C) matches the target application environment. Confirm RoHS compliance status through the latest datasheet revision or environmental declaration documents provided by Analog Devices.

Selection Notes

Select this component when an RF input frequency up to 550 MHz is required. The separate VP pin is critical if the system uses a 3 V supply but requires higher VCO tuning voltages. Verify that the external reference frequency does not exceed the Phase Detector Frequency limit of 55 MHz. Ensure the N-divider output frequency remains below the maximum allowable prescaler output frequency of 200 MHz at 5 V operation.

Part Context

This part belongs to the ADF4110 family of RF PLL frequency synthesizers, which also includes the ADF4111 (1.2 GHz), ADF4112 (3.0 GHz), and ADF4113 (4.0 GHz). All members share identical pinouts, functional blocks, and control interfaces, differing primarily in their maximum RF input frequency capabilities and associated power consumption characteristics.

Replacement Considerations

The ADF4111, ADF4112, and ADF4113 are direct pin-compatible replacements within the same family. These alternatives offer higher maximum RF input frequencies (1.2 GHz, 3.0 GHz, and 4.0 GHz respectively) while maintaining the same 16-pin TSSOP footprint and electrical interface.