STG3000X-RIVA128 STMicroelectronics, STG3000X-RIVA128 Datasheet - Page 60

• Manufacturer Part Number: STG3000X-RIVA128
• Description: 128-BIT 3D MULTIMEDIA ACCELERATOR
• Manufacturer: STMicroelectronics

RIVA 128
NOTES
13.6 FREQUENCY SYNTHESIS CHARACTERISTICS
NOTE
60/77
Parameter
XTALIN crystal frequency range
Internal VCO frequency
Memory clock output frequency
Pixel clock output frequency
Pixel clock output frequency (video displayed)
Synthesizer lock time
1
2
3
4
5
6
7
8
1
2
3
Blanking pede stals are not supported in TV output mode.
VREF = 1.235V, RSET = 147
LSB
About the midpoint of the distribution of the three DACs
37.5oh m, 30pF load
10% to 90%
Settling to within 2% of full scale deflection
Monotonicity guaran teed
A series resonant crystal should be connected to XTALIN
The pixel clock can be prog rammed to within 0.5% of any target frequen cy 10 f
The maximum pixel clock frequency when the RIVA 128 is displaying full motion video
8
= 1 LSB of 8-bit resolution DAC
Min
4
128
128-BIT 3D MULTIMEDIA ACCELERATOR
Typ.
Max
15
256
100
230
110
500
pixclk
230MHz
MHz
Units
MHz
MHz
MHz
MHz
s
Notes
1
2
3