AD9550BCPZ

Overview

The AD9550BCPZ is an integer-N phase-locked loop (PLL) clock translator manufactured by Analog Devices Inc. It converts preset standard input frequencies ranging from 8 kHz to 200 MHz into output frequencies up to 810 MHz. The device features two independently programmable outputs supporting LVPECL, LVDS, or CMOS logic levels. Powered by a single 3.3 V supply with consumption under 450 mW, it utilizes pin-programmable frequency translation ratios and includes an on-chip VCO operating between 3.35 GHz and 4.05 GHz. Housed in a 32-LFCSP-WQ (5 mm × 5 mm) package, it operates within the -40°C to +85°C industrial temperature range.

Feature Summary

• Pin-programmable matrix translating 15 input frequencies to 52 output pairs
• Dual outputs configurable as LVPECL, LVDS, or CMOS
• On-chip VCO with integrated charge pump and loop filter components
• Exceeds Telcordia GR-253-CORE jitter generation and transfer specifications

Applications

• Cost-effective replacement for high-frequency VCXO, OCXO, and SAW resonators
• Wireline communications including Ethernet, T1/E1, SONET/SDH, GPON, and xDSL
• Wireless infrastructure base stations
• Test and measurement equipment

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status via official documentation. Ensure proper handling of moisture-sensitive devices according to specified reflow profiles. Validate that the ordering suffix corresponds to the required packaging format.

Selection Notes

Select the AD9550BCPZ when fixed frequency translation ratios are sufficient for the design. The device requires external loop filter components (R, C1, C2) connected between Pin 16 and Pin 17 to set bandwidth. Ensure the reference input signal meets the single-ended CMOS voltage requirements. Verify that the target output frequencies align with the available pin-configured combinations.

Part Context

The AD9550 belongs to the Analog Devices clock translator family designed for wireline communication systems. It serves as a low-cost alternative to discrete oscillator solutions. The BCPZ suffix indicates a lead-free, halogen-free variant packaged in a 32-lead LFCSP-WQ. This specific model integrates the PLL circuitry necessary for generating precise clock signals from lower-frequency references.

Replacement Considerations

Direct replacements must support similar input/output frequency ranges and package dimensions. Consider the AD9552 for precision applications requiring enhanced jitter performance. Evaluate the AD9553 for designs needing support for additional protocols like GPON alongside Ethernet.