BT440 datasheet by Brooktree.
| Part number | BT440 |
|---|---|
| Datasheet | BT440-Brooktree.pdf |
| File Size | 2.48 MB |
| Manufacturer | Brooktree |
| Description | 275MHz PLL Clock Generator |
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The Bt440 is a clock generator for the highspeedBrooktree CMOS RAMDACs. It interfaces to a low-frequency quartz crystal and " Differential ECL Clock Generation multiplies the crystal frequency by 8x, 16x, 20x, and 32x to generatethe pixel clock sig- . Divide by 4 of the Clock nals that drive the RAMDAC.
| Part Number | Description |
|---|---|
| BT438 | Clock Generator Chip |
| Bt451 | Monolithic CMOS 256-Color Palette RAMDAC |
| BT453 | Monolithic CMOS |
| Bt457 | Monolithic CMOS 256-Color Palette RAMDAC |
| Bt458 | Monolithic CMOS 256-Color Palette RAMDAC |
| BT459 | Monolithic CMOS 256 x 24 Color Palette RAMDAC |
| BT467 | Monolithic CMOS 256-Color Palette RAMDAC |
| BT481 | 110 Mhz / 256 Word Color Palette / 24 Bit True Color Power Down RAMDAC |
| BT481A | 110 Mhz / 256 Word Color Palette / 24 Bit True Color Power Down RAMDAC |
| BT482 | 110 Mhz / 256 Word Color Palette / 24 Bit True Color Power Down RAMDAC |
