CDCM1802RGTT

The CDCM1802RGTT from Texas Instruments is a versatile clock buffer designed to distribute one differential clock input to one LVPECL differential clock output pair and one single-ended LVCMOS output. It supports signaling rates up to 800 MHz for LVPECL and 200 MHz for LVCMOS.

This device features a programmable output divider for both LVPECL and LVCMOS outputs, offering flexibility in clock signal management. The output skew between LVCMOS and LVPECL transitions is minimized to 1.6 ns, reducing noise impact. It operates with a core and output supply voltage of 3.3V, with 2.5V functional capability.

The CDCM1802RGTT is housed in a 16-pin VQFN package measuring 3 mm x 3 mm. It is designed for surface mounting and operates within an ambient temperature range of -40°C to 85°C. The input accepts LVCMOS, LVPECL, and LVTTL signals, while the outputs are LVCMOS and LVPECL. It also provides a VBB output for single-ended driver applications.

Key electrical specifications include an additive RMS jitter of 150 fs (typical) and an output skew of 1600 ps. The receiver input threshold is ±75 mV. This clock buffer is suitable for applications requiring precise clock distribution and signal integrity.