参数资料
型号: HW-V4-ML410-UNI-G-J
厂商: Xilinx Inc
文件页数: 67/101页
文件大小: 0K
描述: EVALUATION PLATFORM VIRTEX-4
产品变化通告: Development System Discontinuation 27/Aug/2012
标准包装: 1
系列: Virtex®-4
类型: FPGA
适用于相关产品: XC4VFX60-11FFG1152
所含物品: 评估平台,小型闪存卡,DDR2 DImm,LCD 显示器 - 不包括电源 -
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Detailed Description
AC’97 Audio Interface
The ALi South Bridge Super I/O controller has a built-in audio interface that is combined
with a standard audio codec (AC’97), LM4550. Available features include:
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AC’97 Codec 2.1 Specification compliant
Codec variable sample rate support
32-voice hardware wave-table synthesis
32 independent DMA channels
3D positioning sound acceleration
Legacy Sound Blaster compatible
FM OPL3 emulation
MIDI interpretation
MIDI MPU-401 interface
ML410 platforms employ a National Semiconductor LM4550 audio codec (U1) combined
with the ALi South Bridge AC’97 interface. This interface can be used to play and record
audio. The LM4550 has left and right channel line inputs, left and right CD-ROM inputs, a
microphone input, left and right channel line outputs, and an amplified headphone output
suitable for driving an 8 Ω load using the LM4880 (U2). The microphone input and
right/left amplified outputs are easily accessible via two 2.5mm audio jacks on the J1
connector. The Line In and Line Out connections are accessible via two Berg headers (J2
and J31).
Table 2-32 describes the audio jacks available to the user on ML410 platforms.
Table 2-32:
Audio Jacks (J1, J2, and J31)
Audio Jack
J1 Top
J1 Bottom
J31
J2
J6
ML410 Embedded Development Platform
UG085 (v1.7.2) December 11, 2008
Signal Name
AC_AMP_OUTR
AC_AMP_OUTL
AC_MIC_IN
AC_LINE_OUTR
AC_LINE_OUTL
AC_LINE_INR
AC_LINE_INL
AC_CD_INR
AC_CD_INL
Description
AC Amplified Output, right and left channels,
driven by U2, LM4880
Microphone Input to U1, LM4550
AC Line Output, right and left channels,
driven by U1, LM4550
AC Line Input, right and left channels,
driven by U1, LM4550
AC CD Input, right and left channels,
driven by U1, LM4550
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