2 USB Audio to I S Digital Audio Bridge CP2615 Data Sheet The CP2615 device is designed to enable rapid development of KEY FEATURES USB-based audio applications. USB Audio class 1.0 2 The CP2615 simplifies the process of transferring audio data from USB to I S without Supports USB HID Consumer Controls for any code development, speeding time to market for USB audio accessories such as Audio and Media USB speakers, USB headphones and USB music boxes, as well as VoIP systems. The Includes USB-UART bridge function CP2615 includes a USB 2.0 full-speed function controller, USB transceiver, oscillator, 2 2 Supports 48 kHz,16-bit/ 24-bit stereo I S (audio) interface, I C (control) interface and UART interface in a compact 5 x 5 mm digital audio QFN-32 package ideal for space-constrained portable audio applications. Integrated USB transceiver no external The CP2615 device is ideal for a wide range of USB Audio applications, including the resistors required following Integrated clock no external crystal required USB headphones/headsets USB speakers On-chip voltage regulator: 3.45 V output Point of sale terminals MP3 accessories Self-powered or Bus-powered Music boxes Navigation systems No firmware development Programming VDD VDD VDD Interface I2C SDA I2C SCL CFGMODEb I2S MCLK REGIN I2S SCK I2S and I2C Configuration VDD Signals to I2S LRCLK Memory CODEC I2S SDIN I2S SDOUT GPIO.0 USB GND Connector GPIO.1 GPIO.2 Audio Controller VBUS VBUS GPIO.3 D+ D+ GPIO.4 HID buttons USB Interface D- GPIO.5 D- GPIO.6 VDD analog GND HID Controller GPIO.7 buttons GPIO.8/VBUS SENSE/ADC GPIO.9/BUTTONS GPIO.10/RESETOUTb CODEC VDD GPIO.12/CLKOUT Clock Output IO Controller GPIO.11/RTSb GPIO.13/TX UART GPIO.14/RX RSTb CP2615 GPIO.15/CTSb silabs.com Building a more connected world. Rev. 1.2 Not Recommended for New DesignsCP2615 Data Sheet Feature List and Ordering Information 1. Feature List and Ordering Information CP 2615 A 02 G M R Tape and Reel (Optional) Package Type QFN32 Temperature Grade 40 to +85 C (G) Firmware Revision Hardware Revision USBXpress Family, USB Audio to I2S Digital Audio Bridge Silicon Labs Xpress Product Line Figure 1.1. CP2615 Part Numbering The CP2615 devices have the following features: 2 Single-Chip USB Audio to I S Digital Audio Bridge USB Peripheral Function Controller Integrated USB transceiver no external resistors required USB Specification 2.0 compliant full-speed (12 Mbps) Integrated clock no external crystal required USB Suspend states supported via SUSPEND pins On-chip voltage regulator: 3.3 V output USB HID Consumer Controls 2 Integrated I C to communicate with DACs/codecs Supports USB HID Consumer Controls for Volume and Mute Synchronization Digital Audio Power Compliant with USB Device Class Definition for Audio De- vices Release 1.0 Supports Self-powered and Bus powered modes Natively supported (no custom driver required) on Win- Other Features dows/Android Optimized for low power in both USB active and idle modes, Android USB Host Mode audio simplifying development of device-powered accessories 44.1 kHz and 48 kHz sampling rates Highly-integrated SoC reduces external BOM cost and PCB footprint Synchronous and asynchronous endpoints Crystal-free USB operation means no external crystal is re- Simultaneous input and output audio streams when using quired 16-bit samples Embedded Flash memory stores device customization op- Unidirectional input or output audio stream when using 24- tions, eliminating the need for any external EEPROM or bit samples flash storage Pin compatible with CP2614 MFi Accessory Digital Audio Bridge silabs.com Building a more connected world. Rev. 1.2 2 Not Recommended for New Designs