Pre-Soldered Header Pins | 1024K RAM (512K of Tightly Coupled Memory) | 2048K Flash (64K Reserved for Recovery & EEPROM Emulation) | 2 USB Ports (Both 480 MBit/Sec) | 3 CAN Bus (1 with CAN FD), 2 I2S Digital Audio

This audio adapter lets you easily add high quality 16 bit, 44.1 kHz sample rate (CD quality) audio to your projects with a Teensy 4.0 | The audio chip connects to Teensy using 7 signals. The I2C pins SDA and SCL are used to control the chip and adjust parameters. Audio data uses I2S signals, TX (to headphones and/or line out) and RX (from line in or mic), and 3 clocks, LRCLK (44.1 kHz), BCLK (1.41 MHz) and MCLK (11.29 MHz). All 3 clocks are created by the Teensy. The SGTL5000 chip operates in "slave mode", where all its clock pins are inputs. | This Version Rev. D is for Teensy 4.0 only