CDCM61004

The CDCM61004 from Texas Instruments is a highly versatile, low-jitter clock generator designed for high-end datacom applications. It is capable of generating four low-jitter clock outputs, which can be pin-selected between LVPECL, LVDS, or 2-LVCMOS signaling. The device operates at a 3.3V supply voltage and features an on-chip VCO operating in the frequency range of 1.75 GHz to 2.05 GHz.

With an input frequency range of 21.875 MHz to 28.47 MHz, the CDCM61004 supports common LVPECL/LVDS output frequencies up to 625 MHz and common LVCMOS output frequencies up to 250 MHz. The output frequency can be further selected using dividers (/1, /2, /3, /4, /6, /8). The device boasts low random jitter performance of typically 0.509 ps RMS (10 kHz to 20 MHz) and low output skew of 30 ps on LVPECL outputs, making it ideal for demanding applications like SONET, Ethernet, and Fibre Channel.

The CDCM61004 is housed in a compact 5mm x 5mm, 32-pin VQFN package, suitable for surface mount applications. It operates within an industrial temperature range of -40°C to 85°C, ensuring reliability in various environments. The device also includes features like output duty cycle correction to 50% (± 5%) and an internal PLL loop bandwidth of 400 kHz.