CP2615 USB-I2S Bridge – A New Solution from Silicon Labs

Apple said goodby to 3.5mm audio jack in Iphone 7 by adding the audio signal to USB plug besides the other functionalities. While Iphone is a pioneer brand, a lot of manufacturers in the near future will drop that analog jack. However, your ear responds to analog signals only. So either you buy headphones with built-in USB audio to analog converter, or you use your old headphones with an adapter. This “new” demand for converting between USB and analog increases the need for ready made solutions.

Silicon Labs has a lot of solutions for USB fixed-function chips. A new IC from Silicon Labs called CP2615 serves as a digital audio bridge transferring digital audio data between the USB and integrated I2S serial bus interfaces with no firmware development needed.
CP2615 is available in 5mm x 5mm QFN-32 package and includes a USB 2.0 full-speed function controller, USB transceiver, on-chip oscillator, I2S audio interface, integrated I2C to communicate with DACs/codecs and embedded flash memory for storing device configurations.

CP2615 has a number of properties that need to be configured like Audio Sample Rates, selecting audio interfaces and others. They can all be configured using “Xpress Configurator” available in Silicon Lab’s IDE (Simplicity Studio).

CP2615 Datasheet
Source: Electropages

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