Product Description
The P2042A is a versatile spread spectrum frequency modulator designed specifically for digital flat panel applications. The P2042A reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream clock and data dependent signals. The P2042A allows significant system cost savings by reducing the number of circuit board layers ferrite beads, shielding and other passive components that are traditionally required to pass EMI regulations.

Features
▪ FCC approved method of EMI attenuation.
▪ Provides up to 15dB of EMI suppression.
▪ Generates a low EMI spread spectrum clock of the input frequency.
▪ Input frequency range: 30MHz to 110MHz.
▪ Optimized for 32.5MHz, 54MHz, 65MHz and 108MHz pixel clock frequencies.
▪ Internal loop filter minimizes external components and board space.
▪ Eight selectable high spread ranges up to ± 1.9%.
▪ SSON# control pin for spread spectrum enable and disable options.
▪ Low cycle-to-cycle jitter.
▪ 3.3V ± 0.3V operating range.
▪ Low power CMOS design.
▪ Supports most mobile graphic accelerator and LCD timing controller specifications.
▪ Available in 8-pin SOIC and TSSOP Packages.

Applications
    The P2042A is targeted towards digital flat panel applications for notebook PCs, palm-size PCs, office automation equipments and LCD monitors.