CY2309CSXI-1T

The Infineon Technologies CY2309CSXI-1T is a 3.3V zero delay clock buffer, serving as a die replacement for older CY2305 and CY2309 parts. This buffer is engineered to distribute high-speed clocks efficiently, featuring on-chip phase-locked loops (PLLs) that lock to an input clock on the REF pin.

Key electrical specifications include an operating frequency range from 10 MHz to 133 MHz, with a typical cycle-to-cycle jitter of 50 ps at 66 MHz. It boasts zero input and output propagation delay, ensuring precise clock signal timing. The device offers one input that drives nine low-skew outputs, grouped as 4 + 4 + 1. It operates within a voltage range of 3V to 3.6V and is specified for an operating temperature range of -40°C to 85°C.

The CY2309CSXI-1T is available in a 16-pin SOIC package, measuring 0.154 inches (3.90mm) in width. It supports both LVCMOS and LVTTL input signal types and provides LVCMOS outputs. The device includes a test mode to bypass the PLL for chip and system testing purposes. In power-down mode, when no rising edges are detected on the REF input, the outputs are three-stated, and the PLL is turned off, resulting in significantly reduced current draw.