ADF4193BCPZ-RL

Overview

The ADF4193BCPZ-RL is a fractional-N PLL frequency synthesizer designed for fast settling applications, specifically targeting GSM/EDGE base station requirements. It integrates a low-noise digital phase frequency detector (PFD), precision differential charge pump, and on-chip differential amplifier to drive external voltage-controlled oscillators (VCOs). The device supports RF input frequencies up to 3.5 GHz with a maximum prescaler output of 470 MHz. Operating from a 2.7 V to 3.3 V supply, it achieves a normalized phase noise figure of merit of −216 dBc/Hz and settles across the entire GSM band within 5 µs. The component utilizes a 32-pin LFCSP package.

Feature Summary

• Fast settling architecture enabling full GSM band frequency hopping in 5 µs and phase settling by 20 µs
• Integrated Σ-Δ based fractional interpolator with programmable modulus fractional-N division
• On-chip low noise differential amplifier converting differential charge pump output to single-ended VCO tuning voltage
• Digitally programmable output phase with 0.5° rms phase error at 2 GHz RF output

Applications

• GSM/EDGE base stations
• PHS base stations
• Instrumentation and test equipment

Procurement Notes

Verify the specific suffix against the manufacturer's ordering guide to confirm temperature range and automotive qualification status. Confirm that the reel packaging matches the required quantity for production integration. Ensure compatibility with the target PCB footprint for the LFCSP-32 package during procurement planning.

Selection Notes

Select this component when designing local oscillators for wireless receivers and transmitters requiring rapid frequency switching without ping-pong synthesizers. Verify that the external VCO tuning range aligns with the differential amplifier output swing capabilities. Ensure the reference input frequency falls within the 10 MHz to 300 MHz range or utilize the internal doubler/divider options appropriately.

Part Context

The ADF4193 belongs to Analog Devices' family of high-performance PLL frequency synthesizers. It serves as a direct replacement for legacy ping-pong GSM PLL architectures, reducing system complexity, PCB area, and shielding requirements. The device is qualified for automotive applications and supports loop filter design via the ADIsimPLL tool.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.