ADF4113BRUZ

Overview

The ADF4113BRUZ is a single-channel, integer-N phase-locked loop (PLL) frequency synthesizer manufactured by Analog Devices Inc. It supports RF input frequencies up to 4.0 GHz and operates on a power supply ranging from 2.7 V to 5.5 V. The device features a low-noise digital phase-frequency detector, a precision charge pump with programmable currents, and a programmable dual-modulus prescaler (8/9, 16/17, 32/33, or 64/65). It includes a 14-bit reference counter and 6-bit/13-bit A/B counters for flexible division ratios. The component utilizes a 3-wire serial interface and is housed in a 16-lead TSSOP package.

Feature Summary

• RF Input Frequency Range: Up to 4.0 GHz
• Power Supply Voltage: 2.7 V to 5.5 V
• Programmable Dual-Modulus Prescaler: 8/9, 16/17, 32/33, 64/65
• Charge Pump Current: Programmable via RSET resistor

Applications

• Base stations for wireless radio (GSM, PCS, DCS, CDMA, WCDMA)
• Wireless handsets (GSM, PCS, DCS, CDMA, WCDMA)
• Communications test equipment
• CATV equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and lead-free manufacturing details directly with the supplier or official datasheet revision history before procurement.

Selection Notes

Select the ADF4113BRUZ when an RF input frequency up to 4.0 GHz is required. Ensure the external loop filter and VCO are compatible with the programmable charge pump current range. Verify that the system power supply remains within the 2.7 V to 5.5 V operating range and that the prescaler output frequency does not exceed the maximum allowable limit of 200 MHz at 5 V.

Part Context

The ADF4113BRUZ belongs to the ADF4110 family of RF PLL frequency synthesizers. This family includes variants with different maximum RF input frequencies: ADF4110 (550 MHz), ADF4111 (1.2 GHz), and ADF4112 (3.0 GHz). All members share similar architectural features, including the 3-wire serial interface and programmable prescaler options.

Replacement Considerations

The ADF4113HVBRUZ is a high-voltage charge pump variant within the same family. Other family members include the ADF4110, ADF4111, and ADF4112, which offer lower maximum RF input frequencies but share the same pinout and control interface.