974 DDC
974 : DDC
- Author: Armaan Gomes
- Description: Converts I2S input to PDM output
- GitHub repository
- Clock: 0 Hz
How it works
It uses an inverted cic filter and modulator to convert an i2s signal to pdm Explain how your project works
How to test
Can and I2s output and a pdm input deive Explain how to use your project
External hardware
I2s Output device and pdm input device
List external hardware used in your project (e.g. PMOD, LED display, etc), if any
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | Bit Clock (3.072 Mhz) | PCM Out Mic 0 | Delay Select 0 |
| 1 | LR Clock (48Khz) | PCM Out Mic 1 | Delay Select 1 |
| 2 | PDM Input Mics 0,1 | PCM Out Mic 2 | Delay Select 2 |
| 3 | PDM Input Mics 2,3 | PCM Out Mic 3 | Delay Select 3 |
| 4 | PDM Input Mics 4,5 | PCM Out Mic 4 | Delay Select 4 |
| 5 | PDM Input Mics 6,7 | PCM Out Mic 5 | Beamformed PCM Output |
| 6 | PCM Out Mic 6 | Mic Clock | |
| 7 | PCM Out Mic 7 |