CP2114 Datasheet, PDF(1/44 Page) Silicon Laboratories – SINGLE-CHIP USB AUDIO TO I2S DIGITAL AUDIO BRIDGE

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CP2114 Datasheet, PDF (1/44 Pages) Silicon Laboratories – SINGLE-CHIP USB AUDIO TO I2S DIGITAL AUDIO BRIDGE

CP2114

SINGLE-CHIP USB AUDIO TO I2S DIGITAL AUDIO BRIDGE

Single-Chip USB Audio to I2S Digital Audio Bridge

ï¬ï USB HID to I2C to communicate with DAC/codec

ï¬ï Supports USB HID Consumer Controls for Volume and

Mute Synchronization

ï¬ï Integrated USB transceiver; no external resistors

required

ï¬ï Integrated clock; no external crystal required

ï¬ï Integrated One-Time Programmable ROM for product

customization

ï¬ï On-chip voltage regulator: 3.45 V output

Supports a Wide Range of codecs/DACs

ï¬ï Out-of-box support for three major codecs/DACs

ï¬ï Internal programmable memory supports additional

codec/DAC configurations

USB Audio Class v1.0 support

ï¬ï I2S Master mode, I2S and left justified PCM outputs

ï¬ï Supports 48 kHz,16-bit stereo digital audio

ï¬ï No custom driver required

ï¬ï Supports Windows 7, Vista, XP, Mac OS-X, Linux

ï¬ï Supports iPad/iOS (with USB camera kit connector)

ï¬ï Open access to interface specification

USB Peripheral Function Controller

ï¬ï USB Specification 2.0 compliant; full-speed (12 Mbps)

ï¬ï USB Suspend states supported via SUSPEND pins

USB HID to UART Auxiliary Communication

Interface

ï¬ï APIs for quick application development

ï¬ï Supports Windows 8, 7, Vista, XP, Server 2003, 2000

ï¬ï Supports Mac OS-X

12 Configurable GPIO Pins with Alternate Functions

ï¬ï Usable as inputs, open-drain or push-pull outputs

ï¬ï UART signals, audio playback controls, DAC select pins

ï¬ï Configurable clock output

ï¬ï Toggle LEDs upon UART transmission or reception

Supply Voltage

ï¬ï Self-powered: 3.0 to 3.6 V

ï¬ï USB bus powered: 4.0 to 5.25 V

ï¬ï I/O voltage: 1.8 V to VDD

Package

ï¬ï RoHS-compliant 32-pin QFN (5 x 5 mm)

Ordering Part Number

ï¬ï CP2114-B01-GM

Temperature Range: â40 to +85 Â°C

Connect to

VBUS or

External Supply

USB

Connector

VBUS

D+

D-

GND

Logic Level

Supply

(1.8V to VDD)

REGIN

VDD

GND

Voltage

Regulator

Internal

Oscillator

USB Interface

VBUS

Full-Speed Peripheral

D+

12 Mbps

Function

D-

Transceiver Controller

CP2114

Baud Rate

Generator

Data FIFOs

256 B RX

256 B TX

RST

352 Byte PROM

VPP

(USB Customization)

UART

Controller

GPIO and

Suspend

Controller

VIO

I/O Power and

Logic Levels

Audio Controller

CS42L55 Configuration

PCM1774 Configuration

WM8523 Configuration

Support for 32 Audio

CODEC//DAC Configurations

5.5 kByte PROM

(Audio Customization)

GPIO.10_TX

GPIO.11_RX

GPIO.0_RMUTE

GPIO.1_PMUTE

GPIO.2_VOL+

GPIO.3_VOL-

GPIO.4_RMUTELED

GPIO.5_TXT_DACSEL0

GPIO.6_RXT_DACSEL1

GPIO.7_RTS_DACSEL2

GPIO.8_CTS_DACSEL3

GPIO.9_CLKOUT

SUSPEND

SDA

SCL

MCLK

SCK

LRCK

SDIN

SDOUT

EXTCLK

Figure 1. Example System Diagram

UART

Volume/Mute Controls

CODEC/DAC Selector

Clock Output (optional)

Suspend Signals

I2S and I2C Signals to

CODEC/DAC

Clock Input (optional)

Rev. 1.1 1/14

CP2114

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