1.1 KEY FEATURES
CORE PROCESSOR
High Performance 32 Bit RISC Architecture
Audio Accelerator with two 24 bit Macs
ADDITIONAL EMBEDDED MEMORY
192KB Internal SRAM
256KB Internal ROM
EXTERNAL MEMORY BUS
4 Bit SPI Flash Support
Directly Running Code from SPI Flash
USB2.0 HOST AND DEVICE CONTROLLER
High Speed USB2.0 OTG
Integrate High Speed USB2.0 PHY
ANALOG AUDIO INTERFACE
Two 24bit SNR 90dB Stereo Audio ADCs embedded
Stereo MIC Amplifier and MIXER
SNR 95dB Audio DAC embedded for Headphone and Line Output
DIGITAL AUDIO INTERFACE
SPDIF Input & Output
One channel I2S Audio Input
One channel I2S Audio output
3 channel Audio PWM output
Two stage Audio PLL, one is fractional and one is low jitter for Audio Clock Sync with external devices such as Apple Device, Android4.1 OS mobile phones, USB audio, SPDIF, BT, DAB, wireless audio...
ENHANCED DIGITAL AUDIO POST PROCESSING
32 Bit mathematic processing for high quality audio
14 BiQuads can construct order 2, order 4 parameter EQ, HP filter, Crossover filter , LP filter
High quality sigma delta modulation, SNR > 110db
Soft volume and soft mute
DRC
Surround & 3D
Virtual Surround
Loudness
Vocal
Micphone Echo
Echo Cancellation
Psychoacoustic BASS
Speed Control
Programmable Audio DSP to support customer new requirements
MULTIPLE AUDIO CODEC
Decoding
MP3
WMA
SBC
AAC LC
AAC plus V1 and V2
AAC LC Multi-channel
Lossless APE , WAV , FLAC ( up to 192kHz , 24bit )
Encoding
MP3
FLAC
WAV
MISC
SPI Control Interface
I2C
UART
Rotary
GPIO
Watch Dog
Real Time Clock
IR Input
PACKAGE
LQFP80