1-30
30
IEI
®
Technology, Corp.
Two software selectable MIC inputs
+30dB boost preamplifier for MIC input
Stereo output with 6-bit volume control
Mono output with 5-bit volume control
Headphone output with 50mW/8W driving capability (ALC202)
Line output with 50mW/8W driving capability (ALC202A)
Headphone jack-detect function to mute LINE/MONO/HP output, and to
control S/PDIF output
3D stereo enhancement
Multiple CODEC extension capability
External Amplifier Power Down (EAPD) capability
High performance converter technology
Power management and enhanced power saving features
2 GPIO pins
No external crystal/clock required
14.318MHz/48MHza24.576MHz PLL saves crystal
DC voltage volume control
Auxiliary power (VAUX) to support Power Off CD function
Power support: digital: 3.3V; analog: 3.3V/5V
Standard 48-pin LQFP package
2.18 Power Consumption
Table 2-2 shows the power consumption parameters for the ROCKY-4786EVG CPU board
when a Pentium 4 processor with a clock speed of 3.0GHz, an L2 cache of 2MB and a FSB
800MHz is running with a 2GB DDR400 module.
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