RIVA128ZX Datasheet, PDF (60/85 Pages) STMicroelectronics – 128-BIT 3D MULTIMEDIA ACCELERATOR

RIVA128ZX
128-BIT 3D MULTIMEDIA ACCELERATOR
11.5 ANALOG INTERFACE
Figure 66. Recommended circuit (crystal circuit is for designs not supporting TV out)
VDD
L1
Local PLLVDD plane
∗
C1 C2
C5^∗
PLLVDD DACVDD
COMP
VDD
C3
XTALIN
X1
RIVA128ZX
C4
RED,
XTALOUT _GREEN,
VREF
BLUE
RSET
C6
∗
R1
GND
∗
R2-R4
Power supply
D4-D6
75Ω
cable
D1-D3
Monitor
75Ω
∗ These components should be placed as close to the RIVA128ZX outputs as possible
Table 20. Table of parts for recommended circuit (Figure 66)
Part number
C1
C2
C3, C4
C5, C6
R1
R2-R4
D1-D6
L1
X1
Value
22µF
100nF
10pF
10nF
147Ω
75Ω
1N4148
1µH
13.50000MHz
14.31818MHz
Description
tantalum capacitor
surface mount capacitor
surface mount capacitor
surface mount capacitor
1% resistor
1% resistor
protection diodes
inductor
series resonant crystal (used where TV output may be
required)
series resonant crystal
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