This product is a single-chip system frequency synthesizer for VIA K7 chipset. It features maximized EMI suppression, supports frequencies up to 200 MHz, and provides I2C™ interface for programming.
The W230-03 is a single‑chip spread‑spectrum frequency timing generator designed for VIA K7 core logic chipsets. It provides multiple clock outputs, including a thirteenth buffer for SDRAM DIMM modules, and uses Cypress’s proprietary spread‑spectrum technique to reduce EMI.
The document describes pin functions, the two‑pin serial data interface for configuring internal registers, and the package dimensions of the 48‑pin SSOP device. It also lists the selectable output frequencies and the method for enabling spread‑spectrum operation.
| CPU Output Frequency | 100.0 MHz |
|---|---|
| PCI Output Frequency | 33.3 MHz |
| Supply Voltage (VDDQ3) | 3.3 V |
| Package Type | 48‑Pin Small Shrink Outline (SSOP, 300 mils) |
The two‑pin serial interface allows configuration of internal registers that control clock output enable, frequency selection, and spread‑spectrum operation.
The device is powered from a 3.3 V supply connected to the VDDQ3 pins.