Altera Cyclone II DSP Development Board Bedienungsanleitung Seite 23

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Seitenansicht 22
Altera Corporation Reference Manual 2–15
August 2006 Cyclone II DSP Development Board
Cyclone II DSP Development Board Components
J16—an amplified audio connector output for headphones
These jacks connect to the TI TLV320AIC23 stereo audio CODEC (U11),
which controls volume and balance levels and connections. See “Audio
CODEC Converter (U11)” on page 2–14.
VGA Output Connector (J21)
J21 is a standard DB-15 VGA video output connector. This connector
interfaces to the Fairchild FMS3818 Triple Video D/A Converter (U21) on
the EP2C70 FPGA. J21 allows video images to be displayed on VGA
monitors.
VGA Triple Video D/A Output Converter (U21)
The Cyclone II DSP development board contains a high density DB-15
connector (U21), which outputs VGA and a triple video D/A output
converter with the following features:
3 x 8 bit, 180 megapixels per second
±2.5% gain matching
±0.5 LSB linearity error
Internal bandgap voltage reference
Low glitch energy
One 3.3-V power supply
Table 2–9 lists the VGA triple video D/A output converter device
reference.
Table 2–9. VGA Triple Video D/A Output Converter Device Reference
Item Description
Board reference U21
Part number FMS3818
Device description Triple Video D/A Converter, 3 x 8 bit, 180 Ms/s
Voltage 3.3 V
Manufacturer Fairchild Semiconductor
Manufacturer web site www.fairchildsemi.com
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