ADF4355-3BCPZ-RL7

Overview

The ADF4355-3BCPZ-RL7 is a microwave wideband synthesizer with an integrated voltage-controlled oscillator (VCO) manufactured by Analog Devices Inc. It supports fractional-N and integer-N phase-locked loop (PLL) frequency synthesis, covering an RF output frequency range from 51.5625 MHz to 6600 MHz. The device operates on a single 3.3 V supply and features a high-resolution 38-bit modulus for precise frequency control. Key electrical parameters include a reference input frequency of up to 600 MHz in differential mode, a programmable charge pump current ranging from 0.3 mA to 4.8 mA, and a typical operating supply current of 75 mA. The component is housed in a 32-lead LFCSP package.

Feature Summary

• Integrated VCO with fundamental frequency range of 3300 MHz to 6600 MHz
• Fractional-N and Integer-N PLL synthesizer with 38-bit modulus resolution
• Programmable output dividers: ÷1, ÷2, ÷4, ÷8, ÷16, ÷32, or ÷64
• Low phase noise performance with normalized in-band floor of -221 dBc/Hz

Applications

• Wireless infrastructure including W-CDMA, TD-SCDMA, WiMAX, GSM, PCS, DCS, and DECT
• Point-to-point and point-to-multipoint microwave links
• Satellites and VSAT systems
• Test equipment and instrumentation
• Clock generation

Procurement Notes

Verify the specific suffix RL7 corresponds to the reel packaging configuration as indicated by distributor listings. Confirm that the ADF4355-3 variant meets the required 6.6 GHz upper frequency limit, distinguishing it from other members of the ADF4355 family with different frequency ranges. Ensure compatibility with the 32-LFCSP footprint during procurement planning.

Selection Notes

Select this component when applications require a wide bandwidth up to 6.6 GHz with integrated VCO capabilities. The ADF4355-3 is suitable for designs needing low phase noise and high frequency resolution via its 38-bit modulus. Consider the 3.3 V supply requirement and the need for an external loop filter. Verify that the operating temperature range of -40°C to +105°C aligns with the system environment.

Part Context

The ADF4355-3BCPZ-RL7 belongs to the ADF4355 series of microwave wideband synthesizers from Analog Devices. This series includes variants such as the ADF4355, ADF4355-1, and ADF4355-2, which differ primarily in their maximum output frequency ranges. The ADF4355-3 specifically extends the upper frequency limit to 6.6 GHz, making it distinct within the family for higher-frequency wireless infrastructure and satellite applications.

Replacement Considerations

Direct replacements within the same family include the ADF4355-3BCPZ (tray packaging) if reel packaging is not strictly required. Other family members like the ADF4355-2 or standard ADF4355 may serve as alternatives if lower frequency ranges are acceptable, though careful verification of the frequency specifications against the datasheet is necessary.