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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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RIVA128 датащи(PDF) 60 Page - STMicroelectronics |
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RIVA128 датащи(HTML) 60 Page - STMicroelectronics |
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60 / 77 page  128-BIT 3D MULTIMEDIA ACCELERATOR RIVA 128 60/77 NOTES 1 Blanking pedestals are not supported in TV output mode. 2 VREF = 1.235V, RSET = 147 Ω 3LSB8 = 1 LSB of 8-bit resolution DAC 4 About the midpoint of the distribution of the three DACs 5 37.5ohm, 30pF load 6 10% to 90% 7 Settling to within 2% of full scale deflection 8 Monotonicity guaranteed 13.6 FREQUENCY SYNTHESIS CHARACTERISTICS NOTE 1 A series resonant crystal should be connected to XTALIN 2 The pixel clock can be programmed to within 0.5% of any target frequency 10 ≤ f pixclk ≤ 230MHz 3 The maximum pixel clock frequency when the RIVA 128 is displaying full motion video Parameter Min Typ. Max Units Notes XTALIN crystal frequency range 4 15 MHz 1 Internal VCO frequency 128 256 MHz Memory clock output frequency 100 MHz Pixel clock output frequency 230 MHz 2 Pixel clock output frequency (video displayed) 110 MHz 3 Synthesizer lock time 500 µs |
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