A2040C Datasheet - Alliance Semiconductor

Product Description
The P2040C is a selectable spread spectrum frequency modulator designed specifically for digital flat panel applications. The P2040C reduces electromagnetic interference (EMI) at the clock source which provides system wide reduction of EMI of all clock dependent signals. The P2040C allows significant system cost savings by reducing the number of circuit board layers and shielding that are traditionally required to pass EMI regulations.

FEATUREs
FCC approved method of EMI attenuation.
Provides up to 15 dB of EMI suppression
Generates a low EMI spread spectrum clock of the input frequency
50 MHz to 170 MHz input frequency range
Optimized for 54MHz, 65MHz, 81MHz, 140MHz, and 162MHz pixel clock frequencies
Internal loop filter minimizes external components and board space
8 selectable spread ranges, up to +/- 2.2%
SSON# control pin for spread spectrum enable and disable options
2 selectable modulation rates
Low cycle-to-cycle jitter
3.3V operating voltage
16 mA output drives
TTL or CMOS compatible outputs
Ultra low power CMOS design
Supports most mobile graphic accelerator and LCD timing controller specifications
Available in 8 pin SOIC and TSSOP

APPLICATIONs
The P2040C is targeted towards digital flat panel applications for Notebook PCs, Palm-size PCs, Office Automation Equipments, and LCD Monitors.