De2115 datasheet3116 pages altera the de2115 package. For a task we need to transfer data from sensor to de2115, for which we need adc. Our audio adcs offer some of the best snr and thd specifications in the industry. Device information1 part number package body size nom. Altera de2 audio codec vhdl jobs, employment freelancer. The audio controller provides a simple interface to the audio codec chip present on the de2 board. Turn the runprog switch sw19 on the left edge of the de2115 board to run position. The following hardware is provided on the de2115 board. Consider these two ways of implementing the same functionality. Altera cyclone iv 4ce115 fpga device altera serial configuration device epcs64 usb blaster on board for programming. De2115 datasheet9116 pages altera the de2115 package. An important notice at the end of this data sheet addresses availability. The controller handles the data transmission to and from the chip. Stereo audio codec with spdif interface uda55h contents 1 features 1.
To assemble the included stands for the de270 board. Description the de2115 package contains all components needed to use the de2115 board in conjunction with a computer that runs the microsoft windows os. The tlv320aic3204 also called the aic3204 is a flexible, lowpower, lowvoltage stereo audio codec with programmable inputs and outputs, powertune capabilities, fixed predefined and parameterizable signalprocessing blocks, integrated pll, integrated ldos and flexible digital interfaces. Tlv320aic3204 ultra low power stereo audio codec datasheet. Clock inputs contains a 50mhz oscillator contains a 27mhz oscillator contains a sma external clock input audio codec. Audio codecs and data converter ics maxim integrated. The tlv320aic3101 is a highly flexible, lowpower, stereo audio codec with. De1 development and education board electronicos caldas.
Nov 23, 20 download de2 115 and wolfson audio codec for free. Features, specifications, alternative product, product training modules, and datasheets are all available. Audio codecs texas instruments codecs online catalog. The audio codec provides a serial communication interface, which is connected to a uart. Cyclone ii ep2c35f672c6 with epcs16 16mbit serial configuration device cyclone ii ep2c35f672c6 device cyclone ii device handbook, pdf, 470pp, c. It operates from a single supply and has an internal ldo that can be used to optimize power consumption. The de2 kit package content 12assemble the rubber feet users can use the attached bag of copper stands, silicon feet cover, and screw to create suitable feet according to userss own applications assemble a screw, a copper stand, and a rubber silicon cover as shown in figure 1. Initialize the device by setting the registers via i2c bus interface. The audio port provides audio input capability via the microphone jack on the de2 115 board, as well as audio output functionality via the lineout jack. Digital audio input word lengths from 1632 bits and sampling rates from 8khz to 96khz are supported. Project setup including speakers, mic and de2 board. To assemble the included stands for the de2 70 board. Has anyone worked with the 24bit audio codex on a de1 or.
Altera de2 board getting started manual pdf download. Audio codecs coderdecoders are a type of audio data converters that encode analog audio as digital signals and decode digital audio back into analog. The processor supports many types of external memory devices, including ddr3ddr3l, nand flashmlc,slc,tlc,ef,nor flash, sdsdiommc including emmc up to rev5. Content management system cms task management project portfolio management time tracking pdf. Fpgabased design of controller for sound fetching from codec.
Recycle the power by turning the red power switch on the de2 115 board off and on again. Audio codecs contain both an analogtodigital converter adc and a digitaltoanalog converter dac. The device is controlled via a 2 or 3 wire serial interface. Altera de2 board 8 with 4 pushbutton switches debounced by schimitter trigger normal high and generate one activelow pulse when the switch is pushed dpdt switches contains 18 dpdt switches for user inputs. The de2 70 package contains all components needed to use the de2 70 board in conjunction with a computer that runs the microsoft windows software. Connect your headset to the lineout audio port on the de2 115 board. Data sheets for each of the io devices on the de2 board, such as the memory chips, audio codec, microphone, linein, lineout 24bit audio codec, sd memory card connector, and vga. The sample rate is adjustable from 8khz to 96khz by using the i2c bus on de2 board. Gulhane abstract the trend in hardware design is towards implementing a complete system, intended for various applications, on a single chip. Mouser is an authorized distributor for many audio codec manufacturers including analog devices inc. Stereo audio outputs are buffered for driving headphones from a programmable volume control, line level outputs are also provided along with antithump mute and power updown circuitry. In the altera data sheet for the de2115 board the basic fea tures and concept of the. If you want to use the mic, then you have to modify the i2c initialization routine. Pdf a study of an interfacing microprocessor system with audio.
But i have managed to create a little sound engine myself, it can play chords from a small table instatiated in a bram. De2 development and education board user manual terasic. Assemble a rubber silicon cover, as shown in figure 1. An audio codec is a digital electronic device or computerbased software application that aids in the compression and decompression of a digital audio data stream. The microphone input port with the audio codec receives the signal, amplifies it, and. In order to implement the any speech application in alt era de2 board a controller. A bstract the trend in hardware design is towards implementing a complet e system, intended for various applications, on a single chip. See wolfson wm8731 audio codec datasheet in the audio data sampling rates. The digital interface of the audio codec sends the digital signal to the nios ii processor and receives the data from the processor. The chip configuration is handled by the separate configuration module. The audio port provides audioinput capability via the microphone jack on the de2115 board, as well as audio output functionality via the lineout jack. Pdf audio codec is an integrated circuit that encodes analogue audio.
De2 115 package the de2 115 package contains all components needed to use the de2 115 board in conjunction with a computer that runs the microsoft windows os. Connect your headset to the lineout audio port on the de2115 board. The max9880a is a highperformance, stereo audio codec designed for portable consumer applications such as smartphones and tablets. Turn the runprog switch sw19 on the left edge of the de2 115 board to run position. We used sopc, has a wm8731 audio codec chip connected both to the microphone input pins and the altera cyclone ii fpga pins through an i2c serial controller interface. Suitability of surface mount ic packages for wave and. The uda42ts has special sound processing features in. De2115 package the de2115 package contains all components needed to use the de2115 board in conjunction with a computer that runs the microsoft windows os. Figure 11 the de2115 package contents the de2115 package includes. For detailed information on how to use the audio codec, users can refer to the spec under c.
A softwarebased audio codec essentially consists of an implemented algorithm that codes and decodes an audio stream. Encodingdecoding signals tofrom analog audio fromto digital audio i. Analog audio larynx vocal cords vocal tract resonance sound waves compression and rarefaction diaphragm analog voltage proportional to air pressure simple analogtodigital converter signal is sampled at sampling frequency f. The audio codec is a separate chip a wolfson wm8731 in your case which can turn information on digital form into analog information to be amplifiedplayed through a standard sound system with amplifierspeakeretc. Figure out the exact register you need to program for mic in. Fpgabased design of controller for sound fetching from. Read the audio codec datasheet it should be on your de2 cd, specifically starting at page 46 where it describes the register map.
Tlv320aic3101 lowpower stereo audio codec for portable audio. The processor supports many types of external memory devices, including ddr3ddr3l, nand flashmlc,slc,tlc,ef,nor flash. Da7212 ultra low power stereo codec with 650w always on. De2 development board audio codec internal interfacing nios ii embedded processor pc, development board. Data sheets for each of the io devices on the de2 board, such as the memory chips, audio codec, and rs232 are provided in the datasheets folder.
De2115 and wolfson audio codec report inappropriate project. This tutorial explains how to use the audio inputs and outputs on the. De2 user manual 8 audio codec wolfson wm8731 24bit sigmadelta audio codec linelevel input, linelevel output, and microphone input jacks sampling frequency. Manual, the control panel utility, reference designs and demonstrations. Please view our large selection of audio codecs below. De2 70 user manual 8 audio codec wolfson wm8731 24bit sigmadelta audio codec linelevel input, linelevel output, and. The audio port includes four fifos that are used to hold incoming and outgoing data. This chip supports microphonein, linein, and lineout ports, with a sample rate adjustable from 8 khz to 96 khz. Stereo audio codec with usb interface, singleended analog. Interfacing a processor core in fpga to an audio system. The configuration module must be instantiated separately when using the audio controller.
This board has an audio codec included, the wm8731. Figure 11 the de2 115 package contents the de2 115 package includes. Da7212 is a high performance, lowpower audio codec with an enhanced hybrid alc and a powerful speaker driver targeting wearable, portable and embedded applications. Hello, i am newbe to fpga, we are using de2115 developmental board. Fpgabased design of controller for sound fetching from codec using altera de2 board a.
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