Overview
The AD9888KS-140 is a comprehensive 8-bit, 140 MSPS monolithic analog interface designed by Analog Devices Inc. This device is optimized for capturing RGB graphics signals from personal computers and workstations. It supports high-resolution displays up to 1600 × 1200 (UXGA) at 75 Hz, thanks to its 140 MSPS encode rate capability and a full-power analog bandwidth of 500 MHz. The AD9888KS-140 is a fully integrated interface solution for flat panel displays, simplifying design and reducing costs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Encode Rate | 140 MSPS | |
| Analog Bandwidth | 500 MHz | |
| Resolution Support | Up to 1600 × 1200 (UXGA) at 75 Hz | |
| ADC Frequency | 140 MHz | |
| Pixel Clock Output Frequency | 10 MHz to 140 MHz | |
| PLL Clock Jitter | < 450 ps p-p at 140 MSPS | |
| Power Supply | 3.3 V | |
| Output Voltage Range | 2.5 V to 3.3 V | |
| Package Type | 128-Lead MQFP (14mm x 20mm) | |
| Operating Temperature Range | 0°C to 70°C |
Key Features
- Internal 1.25 V reference phase-locked loop (PLL) to generate a pixel clock from HSYNC and COAST signals.
- Programmable gain, offset, and clamp controls.
- Midscale clamping and full sync processing for composite sync and sync-on-green applications.
- Sampling phase adjustment and maintenance of data, HSYNC, and clock output phase relationships.
- Option to disable the PLL and use an external clock input as the pixel clock.
- Fully programmable via a 2-wire serial port.
- Available in a Pb-free package.
Applications
The AD9888KS-140 is primarily used in applications involving the capture and display of RGB graphics signals from personal computers and workstations. It is particularly suited for flat panel displays, including LCD monitors and other high-resolution display systems. Its capabilities make it an ideal component for various video and graphics processing applications.
Q & A
- What is the encode rate of the AD9888KS-140?
The AD9888KS-140 has an encode rate of 140 MSPS. - What is the maximum resolution supported by the AD9888KS-140?
The AD9888KS-140 supports resolutions up to 1600 × 1200 (UXGA) at 75 Hz. - What is the range of the pixel clock output frequency?
The pixel clock output frequency ranges from 10 MHz to 140 MHz. - How is the pixel clock generated?
The pixel clock is generated by an internal 1.25 V reference phase-locked loop (PLL) from HSYNC and COAST signals. - Can the PLL be disabled?
Yes, the PLL can be disabled, and an external clock input can be used as the pixel clock. - What is the power supply requirement for the AD9888KS-140?
The AD9888KS-140 requires a 3.3 V power supply. - What is the operating temperature range of the AD9888KS-140?
The operating temperature range is from 0°C to 70°C. - Is the AD9888KS-140 available in a Pb-free package?
Yes, the AD9888KS-140 is available in a Pb-free package. - How is the AD9888KS-140 programmed?
The AD9888KS-140 is fully programmable via a 2-wire serial port. - What type of package does the AD9888KS-140 come in?
The AD9888KS-140 comes in a 128-Lead MQFP (14mm x 20mm) package.
