AD9515BCPZ

The AD9515BCPZ is a high-performance clock distribution IC from Analog Devices designed for low jitter and phase noise. It features a differential clock input and two independent outputs: one LVPECL output operating up to 1.6 GHz and a second output selectable as LVDS (up to 800 MHz) or CMOS (up to 250 MHz). The device includes two programmable dividers with division ratios from 1 to 32, allowing flexible frequency synthesis. A programmable delay adjust with three selectable full-scale ranges (1.5 ns, 5 ns, and 10 ns) provides fine timing control in 16 steps per range.

Additive jitter is exceptionally low: 225 fs rms for LVPECL at 1.6 GHz, 300 fs rms for LVDS at 800 MHz, and 290 fs rms for CMOS at 250 MHz. The device operates from a 3.135V to 3.465V supply and over an industrial temperature range of -40°C to 85°C. It is housed in a space-saving 32-lead LFCSP package (5x5 mm) with exposed pad for thermal performance.

Typical applications include low jitter clock distribution for high-speed ADCs, DACs, DDSs, and mixed-signal front ends, as well as wireless transceivers, broadband infrastructure, instrumentation, and automatic test equipment. The AD9515BCPZ is configured via 4-level logic pins, simplifying setup without requiring a serial interface.