San Jose, Calif. Panstera Inc. is sampling a single-chip CMOS graphics digitizer said to provide an analog interface for flat-panel displays. Production quantities of the PT69884 are scheduled to ship before year's end, and a 100-megasample/second version of the part will be priced at $8 in 1,000-piece quantities (a 140-Msample/s version is also planned).
Marketing director Limas Lin said the PT69884 optimizes and encodes analog RGB signals before display formatting and thus can be used for RGB graphics processing as well as in LCD monitors and projectors, plasma display panels, digital video and medical imaging systems.
The device includes a three-channel, 8-bit analog-to-digital (A/D) converter wsaid to be capable of converting images up to 1,280 x 1,024-pixel (SXGA) resolution at 75 Hz or 1,600 x 1,200 pixels at 85 Hz using alternate-pixel sampling.
Also on-chip are an adaptive programmable link loader (PLL) plus input clamps and variable-gain amplifiers to optimize the device's input signal range. Lin said the PLL generates a pixel clock output from HSYNC input with jitter relative to input reference of less than 500 picoseconds peak-to-peak typical. The PLL can also be disabled and external clock inputs used as the pixel clock.
Other features include an on-board voltage reference and single- or dual-port digital outputs. Output data is released through either one port, at full rate, or both ports, each at half-rate. Digital data levels comply with 2.5- to 3.3-volt CMOS.
The PT69884 ships in a 128-lead surface-mount plastic quad flat pack and operates over 0 degrees C to 75 degrees C. It can operate from a 3.3-V power supply.
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EETInfo No. 617