Spartan-3A/3AN Starter Kit Board User Guide www.xilinx.com 135UG334 (v1.0) May 28, 2007RChapter 16Miniature Stereo Audio JackThe Spartan-3A/3AN Starter Kit board includes a miniature stereo audio jack plug, ashighlighted in Figure 16-1. The jack plug is located in the upper right corner of the board,immediately above the SUSPEND slide switch.Supported Audio DevicesThe port provides simple audio tones to an attached set of headphones or to amplifiedspeakers. The audio device must use a 1/8th-inch or 3.5 mm audio jack, as shown inFigure 16-2. A stereo connector is highly recommended. The FPGA signal definitionappears in Table 16-1.A monophonic connector will function, but with the following limitations. Only drivesignals on the AUD_L signal. Drive the AUD_R output to high-impedance (Hi-Z, three-state) so that it does not compete with the AUD_L channel.Figure 16-1: Stereo Miniature JackUG334_c16_01_052407Stereo audiominiature jack(1/8”, 3.5 mm)Connect headphonesor amplified speakers3.3V digital outputs
