ADF4156BCPZ-RL7

Overview

The ADF4156BCPZ-RL7 is a 6.2 GHz fractional-N frequency synthesizer manufactured by Analog Devices Inc. It integrates a low-noise digital phase-frequency detector, precision charge pump, and programmable reference divider. The device utilizes a sigma-delta based fractional interpolator for programmable division ratios defined by INT, FRAC, and MOD registers. Key electrical parameters include an RF input frequency range of 0.5 GHz to 6.2 GHz, a power supply voltage of 2.7 V to 3.3 V, and a typical operating current of 26 mA. It features cycle slip reduction circuitry for faster lock times and operates within a temperature range of -40°C to +85°C.

Feature Summary

• RF bandwidth extending up to 6.2 GHz with integrated fractional-N synthesis capabilities
• Cycle slip reduction (CSR) circuitry enabling faster lock times without loop filter modifications
• Programmable charge pump currents ranging from 312.5 µA to 5 mA via external RSET resistor
• Separate VP pin supporting extended tuning voltages up to 5.5 V for VCO drive

Applications

• Base stations for mobile radio including WiMAX, GSM, PCS, DCS, SuperCell 3G, CDMA, and WCDMA
• Wireless handsets supporting GSM, PCS, DCS, CDMA, and WCDMA standards
• CATV equipment and wireless LANs
• PMR and communications test equipment

Procurement Notes

Verify the specific B version suffix against the manufacturer's latest ordering guide to confirm the industrial temperature range (-40°C to +85°C). Ensure compatibility with the LFCSP package outline dimensions provided in the datasheet revision E documentation. Confirm that the reel packaging quantity matches the standard factory pack size specified for this part number.

Selection Notes

Select the ADF4156BCPZ-RL7 when applications require a 6.2 GHz fractional-N synthesizer with fast settling times. The separate VP pin allows for higher tuning voltages compared to standard 3.3 V only devices. Use ADIsimPLL software for loop filter design optimization. Ensure the reference input sensitivity and PFD frequency limits align with the system clock requirements.

Part Context

This component belongs to the ADF4156 family of frequency synthesizers. It is pin-compatible with the ADF4110, ADF4111, ADF4112, ADF4113, ADF4106, ADF4153, and ADF4154 series. The BC part designation indicates the commercial/industrial temperature grade variant housed in an LFCSP package.

Replacement Considerations

Direct pin-compatible replacements include ADF4110, ADF4111, ADF4112, ADF4113, ADF4106, ADF4153, and ADF4154. Verify that the substitute device supports the required 6.2 GHz RF input frequency and fractional-N architecture before substitution.