System Overview

The CP2114 includes a USB 2.0 full-speed function controller, USB transceiver, oscillator, one-time programmable read-only memory (ROM), I2S (audio) interface, I2C (control) interface, and UART interface in a compact 5 x 5 mm QFN-32 package (sometimes called “MLF” or “MLP”). The one-time programmable ROM on the device may be used to customize both product information (including USB fields such as Vendor ID, Product ID, Strings, etc...) and external DAC configuration strings.

Single-Chip USB Audio to I2S Digital Audio Bridge

•USB HID to I2C to communicate with DAC/codec

•Supports USB HID Consumer Controls for Volume and

Mute Synchronization

•Integrated USB transceiver; no external resistors

required

•Integrated clock; no external crystal required

•Integrated One-Time Programmable ROM for product

customization

•On-chip voltage regulator: 3.45 V output

Supports a Wide Range of codecs/DACs

•Out-of-box support for three major codecs/DACs

•Internal programmable memory supports additional

codec/DAC configurations

USB Audio Class v1.0 support

•I2S Master mode, I2S and left justified PCM outputs

•Supports 48 kHz,16-bit stereo digital audio

•No custom driver required

•Supports Windows 7, Vista, XP, Mac OS-X, Linux

•Supports iPad/iOS (with USB camera kit connector)

•Open access to interface specification

USB Peripheral Function Controller

•USB Specification 2.0 compliant; full-speed (12 Mbps)

•USB Suspend states supported via SUSPEND pins

USB HID to UART Auxiliary Communication Interface

•APIs for quick application development

•Supports Windows 8, 7, Vista, XP, Server 2003, 2000

•Supports Mac OS-X

12 Configurable GPIO Pins with Alternate Functions

•Usable as inputs, open-drain or push-pull outputs

•UART signals, audio playback controls, DAC select pins

•Configurable clock output

•Toggle LEDs upon UART transmission or reception

Supply Voltage

•Self-powered: 3.0 to 3.6 V

•USB bus powered: 4.0 to 5.25 V

•I/O voltage: 1.8 V to VDD

Package

•RoHS-compliant 32-pin QFN (5 x 5 mm)

Ordering Part Number

•CP2114-B01-GM

Temperature Range: –40 to +85 °C