Compressed Audio Signal Processor IC with USB Host Controller LC786820E Overview The LC786820E integrates Arm7TDMIS , USB host processing, www.onsemi.com SD memory card host processing, compressed audio decode processing, audio signal processing and a flash memory which stores the program for Arm7TDMIS and the various data. The sophisticated programs in the flash memory for the USB host processing for the SD memory card processing or audio signal processing etc. make the process of external main microcontroller easier and very helpful to develop a much features/high performance audio player system. PQFP100 14x20 Main Features CASE 122BV USB Host/Device Function (Full Speed: 12 Mbps), SD Memory Card Host Function MARKING DIAGRAM * * * * * MP3 , WMA , AAC , FLAC , SBC Decoder Processing Function Audio Input Functions such as Analog (Stereo 3ch)/Digital 3ch Input LC786820 (Sampling Rate Convertible) (YM)A(ZZ) Arm Audio Processing Functions such as 20 Bands Equalizer (Stereo 1ch), Subwoofer Processing, Highfrequency Range Extendable Filter and etc. LC786820 = Specific Device Code Y = Year of Production Audio Output Functions such as Electronical Volume Output 5 ch M = Assembly Operation (for LF, LR, RF, RR, SW), or DAC Output 3ch (Lch, Rch, SW) A = Assembly Site Arm7TDMIS as Internal CPU Core, Flash Memory for Program ZZ = Assembly Lot Number and Various Data Storage Operational Voltage Source: 3.3 V Single Power Supply Operational Temperature: 40 to +85C Package: QIP100E (1420) PbFree and Halogen Free type This Device is PbFree, Halogen Free/BFR Free and are RoHS Compliant MP3 MPEG Layer3 Audio Coding WMA Windows Media Audio AAC Advanced Audio Coding FLAC Free Lossless Audio Codec Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: April, 2020 Rev. 3 LC786820E/DLC786820E Detail Functions Compressed Audio Functions <Audio Processing Block> MP3 decode (ISO/IEC 111723, ISO/IEC 138183) Supported sampling rate : MPEG1Layer1/2/3 (32 kHz, 44.1 kHz, 48 kHz) MPEG2Layer1/2/3 (16 kHz, 22.05 kHz, 24 kHz) MPEG2.5Layer3 (8 kHz, 11.025 kHz, 12 kHz) Supported bit rate : All Bit Rate (Variable Bit Rate support) MPEG header read supported WMA decode (Version 9.2 standard) Supported sampling rate : 8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz Supported bit rate : 5 kbps to 384 kbps (Variable Bit Rate support) AAC decode (ISO/IEC 144963, ISO/IEC 138187) Profile : MPEG4AACLowComplexity Supported sampling rate : 8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz Supported bit rate : Monaural 8 kbps to 160 kbps (Variable bit rate support) Stereo 16 kbps to 320 kbps (Variable bit rate support) *Depending on the condition, sampling rate can be supported up to 96kHz. FLAC decode (FLAC 1.3.0) Supported format : Block size: up to 4608 Quantized number of bits: 8/16/24 bit per sample Supported sampling rate : 8 kHz to 48 kHz Supported channel : 1/2ch Audio Processing Functions <Audio Data Digital Processing Block> Equalizer function Supports max of 20band (stereo 1ch) and unused band can be used for not only the voice output but also used for other processing Supports signal processing for subwoofer Sampling conversion (Fs = 32/44.1/48 kHz) when playing compressed audio, High band extended processing supported Mute (/12 dB), attenuator Deemphasis filter Embedded level/peak hold circuit and can hold up to 8 data Noise cancel/Echo cancel function Supports noise cancel/echo cancel at Fs = 8 kHz Supports input/output of Fs = 16 kHz voice data www.onsemi.com 2