Global American 3301825, User Manual

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3301825 3.5” Embedded SBC
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18-bit Stereo full-duplex CODEC with independent and variable sampling rate
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Complies with AC'97 2.3 specifications
o
LINE/HP-OUT, MIC-IN and LINE-IN sensing
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14.318MHz -> 24.576MHz PLL saves crystal
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12.288MHz BITCLK input can be consumed
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Integrated PCBEEP generator to save buzzer
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Interrupt capability
o
Page registers and Analog Plug & Play
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Support of S/PDIF out is fully compliant with AC'97 rev2.3 specifications
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Three analog line-level stereo inputs with 5-bit volume control: LINE_IN, CD,
AUX
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High quality differential CD input
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Two analog line-level mono input: PCBEEP, PHONE-IN
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Supports double sampling rate (96KHz) of DVD audio playback
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Two software selectable MIC inputs
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+6/12/20/30dB boost preamplifier for MIC input
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Stereo output with 6-bit volume control
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Mono output with 5-bit volume control
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Headphone output with 50mW/20Ohm amplifier
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3D Stereo Enhancement
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Multiple CODEC extension capability
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External Amplifier Power Down (EAPD) capability
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Power management and enhanced power saving features
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Stereo MIC record for AEC/BF application
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DC Voltage volume control
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Auxiliary power to support Power Off CD
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Adjustable VREFOUT control
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2 GPIO pins with smart GPIO volume control
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2 Universal Audio Jacks (UAJ)® for front panel
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Supports 32K/44.1K/48K/96KHz S/PDIF output
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Supports 32K/44.1K/48KHz S/PDIF input
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Power support: Digital: 3.3V; Analog: 3.3V/5V
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Standard 48-Pin LQFP Package
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EAX™ 1.0 & 2.0 compatible
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Direct Sound 3D™ compatible
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