Spread-spectrum PLL with 26-output fan-out
The W230H is a spread-spectrum clock generator from Infineon that takes a single clock input and produces up to 26 clock outputs via an internal PLL. The three output frequency maxima — 14.318 MHz, 24 MHz, and 48 MHz — cover the legacy PC chipset, graphics, and peripheral clock domains. Spread-spectrum modulation spreads the output energy across a small frequency band, reducing the peak EMI radiated from the clock traces. That modulation is the primary reason to use this part over a fixed-frequency oscillator — it avoids a separate spread-spectrum clock buffer downstream.
Supply rail tolerance and temperature grade
A standard 3.3 V rail with ±10 % tolerance can drift below 3.0 V, which may cause the PLL to lose lock. The board's 3.3 V regulator must hold within 5 %; a 3.3 V LDO with 2 % initial accuracy and 1 % load regulation is a safe choice. This is a commercial-grade part — it belongs in a desktop PC, server, or office equipment, not in a motor drive or outdoor telecom cabinet. The 48-SSOP package (0.295-inch wide, 7.50 mm body) is a surface-mount SSOP footprint; the 0.025-inch pitch demands a controlled-impedance PCB stack-up for the clock traces.
Active production — no obsolescence watch needed
Procurement can place this on a BOM line without an obsolescence reserve. The part is listed as RoHS non-compliant, so it is not suitable for new designs requiring RoHS exemption-free compliance. For a RoHS-compliant spread-spectrum clock generator with a similar output count, check the Infineon SSCG family in the same 48-SSOP footprint — confirm pin compatibility from the respective datasheets.