PLL clock generator in die form
The Texas Instruments CDCE431Y is a single-circuit PLL-based clock generator that accepts LVCMOS or crystal inputs and delivers differential LVDS or LVPECL outputs at frequencies up to 1.2 GHz.
1.2 GHz differential output — signal integrity ceiling
The 1.2 GHz maximum output frequency with LVDS or LVPECL levels means this part is sized for high-speed serial clock distribution in applications like data converters, FPGA reference clocks, or SerDes framing. The 1:1 input-to-output ratio and absence of a multiplier stage limit it to clean frequency synthesis rather than wide-range multiplication.
Die-level package — assembly and procurement implications
The CDCE431Y is supplied as a bare die on tray, not a molded package. This means the buyer must handle wire bonding or flip-chip attach in their own hybrid or multi-chip module assembly. The die form also narrows the sourcing channel — standard distributors rarely stock bare die, so procurement typically runs through specialized semiconductor die brokers or TI's direct die program.
Obsolete — no official successor on record
No direct replacement or successor part number is documented in the available records. For sustainment of existing designs, buyers should secure remaining inventory through independent distribution or evaluate functionally similar PLL clock generators from TI's current portfolio, noting that die-level packaging is uncommon in newer parts.