intersil x98021 is a video digitizer chip produced by intersil company. it can convert analog rgb or yuv graphic signals from personal computers, workstations and video set-top boxes into digital signals, supporting uxga resolution at 75hz refresh rate. it has high psrr and dynamic performance.
The X98021 3‑channel, 8‑bit analog front end converts analog RGB or YUV graphics signals up to UXGA resolution at 75 Hz. It features programmable input bandwidth, automatic black‑level compensation, and a digital PLL that generates a pixel clock from HSYNC or SOG signals.
The device includes five embedded voltage regulators for single‑supply operation, independent gain/offset control per channel, and supports both RGB and YUV 4:2:2 output formats. It is intended for LCD monitors, projectors, digital TVs, plasma displays, and scan converters.
| ADC resolution | 8 bits |
|---|---|
| Input voltage range | 0.35 V‑p‑p to 1.4 V‑p‑p |
| Programmable bandwidth | 100 MHz to 780 MHz |
| Supply voltage (analog & digital) | 3.3 V (3.0 V – 3.6 V range) |
| Pixel clock output range | 10 MHz – 210 MHz |
The digital PLL can generate a pixel clock up to 210 MHz.
It supports RGB and YUV 4:2:2 output formats.
The bandwidth can be programmed from 100 MHz to 780 MHz.