ADF4153ABCPZ-RL7

Overview

The ADF4153ABCPZ-RL7 is a fractional-N frequency synthesizer from Analog Devices, designed for local oscillator generation in wireless transceivers. It operates with a 2.7 V to 3.3 V supply and supports RF input frequencies up to 4 GHz. The device integrates a low-noise digital phase-frequency detector, a programmable charge pump, and a sigma-delta based fractional interpolator. Key electrical parameters include a reference input range of 10 MHz to 250 MHz, a programmable charge pump current ranging from 312.5 µA to 5 mA, and a typical operating current of 20 mA. It features a 3-wire serial interface and is available in LFCSP-20 and TSSOP-16 packages.

Feature Summary

• Fractional-N synthesis with a sigma-delta interpolator supporting programmable modulus up to 4095
• RF input bandwidth extending to 4 GHz with dual-modulus prescaler options (4/5 or 8/9)
• Programmable charge pump current via external RSET resistor, with high value up to 5 mA
• Separate VP pin allows extended tuning voltage up to 5.5 V for VCO drive

Applications

• Base stations for mobile radio including GSM, PCS, DCS, WiMAX, and W-CDMA
• Wireless handsets and LANs requiring precise local oscillator generation
• CATV equipment and communications test instruments

Procurement Notes

Verify the specific package variant required, as the ADF4153A series includes both LFCSP-20 and TSSOP-16 options. Confirm that the ordering suffix corresponds to the desired physical footprint and reel specifications. Ensure compatibility with the intended board layout regarding exposed pad connections for thermal management and grounding.

Selection Notes

Select the ADF4153ABCPZ-RL7 when an RF input frequency up to 4 GHz is required. Choose this component over lower-frequency variants if the application demands operation above 2 GHz, necessitating the 8/9 prescaler setting. Consider the separate VP supply pin if the target VCO requires a tuning voltage exceeding the standard AVDD level.

Part Context

This part belongs to the ADF4153 family of fractional-N synthesizers. It is pin-compatible with several other Analog Devices PLLs, including the ADF4106, ADF4110, ADF4111, ADF4112, ADF4113, and the standard ADF4153. This compatibility facilitates design upgrades or replacements within existing hardware architectures without requiring schematic changes.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.