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pmod:pmodmic3:reference-manual [2022/09/13 17:28] – changed forum.digilentinc.com to forum.digilent.com Jeffrey | pmod:pmodmic3:reference-manual [2022/12/06 18:45] (current) – Martha | ||
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+ | ====== Pmod MIC3 Reference Manual ====== | ||
+ | <WRAP center round important 60%> | ||
+ | The Pmod MIC3 is retired and no longer for sale in our store. | ||
+ | </ | ||
+ | |||
+ | The Digilent Pmod MIC3 (Revision A) is small microphone module with a digital interface. With a Knowles Acoustics SPA2410LR5H-B MEMs microphone and Texas Instrument' | ||
+ | |||
+ | {{Digilent Image Gallery | ||
+ | | image = {{: | ||
+ | | image = {{: | ||
+ | | image = {{: | ||
+ | | image = {{: | ||
+ | | image = {{: | ||
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+ | }} | ||
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+ | == Download This Reference Manual == | ||
+ | * {{: | ||
+ | |||
+ | ---- | ||
+ | |||
+ | ===== Features ===== | ||
+ | * MEMS Microphone module with digital interface | ||
+ | * Transform audio inputs with 12-bit A/D converter | ||
+ | * Adjust incoming volume with on-board potentiometer | ||
+ | * Up to 1 MSPS of data | ||
+ | * 6-pin Pmod port with SPI interface | ||
+ | * Follows Digilent Pmod Interface Specification Type 2 | ||
+ | |||
+ | ---- | ||
+ | =====Functional Description ===== | ||
+ | The Pmod MIC3 is designed to digitally report to the host board whenever it detects any external noise. By sending a 12-bit digital value representative of frequency and volume of the noise, this number can be processed by the system board and have the received sound accurately reproduced through a speaker. The on-board potentiometer can be used to modify the gain from the microphone into the %%ADC%%. | ||
+ | |||
+ | |||
+ | ---- | ||
+ | ===== Interfacing with the Pmod===== | ||
+ | The Pmod MIC3 communicates with the host board via the [[pmod: | ||
+ | |||
+ | ==== Pinout Table Diagram ==== | ||
+ | |||
+ | ^ Pin ^ Signal | ||
+ | | 1 | SS | Chip Select | ||
+ | | 2 | NC | Not Connected | ||
+ | | 3 | MISO | Master-In-Slave-Out | ||
+ | | 4 | SCK | Serial Clock | | ||
+ | | 5 | GND | Power Supply Ground | ||
+ | | 6 | VCC | Power Supply (3.3V/ | ||
+ | |||
+ | The %%Pmod MIC3%% is capable of converting up to 1 MSa per second of 12-bit data, making it an ideal Pmod to use in conjunction with the [[pmod: | ||
+ | |||
+ | Any external power applied to the Pmod MIC3 must be within 3V and 5.5V to ensure that the on-board chips operate correctly; however, it is recommended that Pmod is operated at 3.3V. | ||
+ | |||
+ | ==== Timing Diagram ==== | ||
+ | A sample timing diagram taken from the ADCS7476 datasheet representing the data that will be received by the system board from the Pmod is provided below: | ||
+ | |||
+ | {{ : | ||
+ | ---- | ||
+ | |||
+ | ===== Physical Dimensions ===== | ||
+ | The pins on the pin header are spaced 100 mil apart. The PCB is 1.1 inches long on the sides parallel to the pins on the pin header and 0.8 inches long on the sides perpendicular to the pin header. | ||
+ | ---- | ||
+ | ===== Additional Information ===== | ||
+ | The schematics of the %%Pmod MIC3%% are available {{reference: | ||
+ | |||
+ | Example code demonstrating how to get information from the %%Pmod MIC3%% can be found [[pmod: | ||
+ | |||
+ | If you have any questions or comments about the %%Pmod MIC3%%, feel free to post them under the appropriate section (" |