AT80SND2CMP3B

•MPEG I/II-Layer 3 Hardwired DecoderStand-alone MP3 Decoder48, 44.1, 32, 24, 22.05, 16 kHz Sampling FrequencySeparated Digital Volume Control on Left and Right Channels (Software Control using 31 Steps)Bass, Medium, and Treble Control (31 Steps)Bass Boost Sound EffectAncillary Data ExtractionCRC Error and MPEG Frame Synchronization Indicators
•20-bit Stereo Audio DAC 93 dB SNR playback stereo channel 32 Ohm/ 20 mW stereo headset drivers Stereo Line Level Input, Differential Mono Auxiliary Input
•Programmable Audio Output for Interfacing with External Audio SystemPCM Format CompatibleI2S Format Compatible
•Mono Audio Power Amplifier440mW on 8 Ohms Load
•8-bit MCU C51 Core Based (FMAX = 20 MHz)
•2304 Bytes of Internal RAM
•64K Bytes of Code MemoryAT89C51SND2C and 89SND2CMP3B: Flash (100K Erase/Write Cycles)AT83SND2C and 83SND2CMP3B: ROM
•4K Bytes of Boot Flash Memory (AT89C51SND2C and 89SND2CMP3B)ISP: Download from USB (standard) or UART (option)
•USB Rev 1.1 ControllerFull Speed Data Transmission
•Built-in PLLMP3 Audio ClocksUSB Clock
•MultiMedia Card® Interface Compatibility
•Atmel DataFlash® SPI Interface Compatibility
•IDE/ATAPI Interface
•2 Channels 10-bit ADC 8 kHz (8-true bit) for AT8XSND2CMP3BBattery Voltage MonitoringVoice Recording Controller by Software
•Up to 32 Bits of General-purpose I/Os1 Interrupt KeyboardSmartMedia® Software Interface
•2 Standard 16-bit Timers/Counters
•Hardware Watchdog Timer
•Standard Full Duplex UART with Baud Rate Generator
•Two Wire Master and Slave Modes Controller
•SPI Master and Slave Modes Controller
•Power ManagementPower-on ResetSoftware Programmable MCU ClockIdle Mode, Power-down Mode
•Operating Conditions:2.7 to 3.6VPower amplifier supply 3.2V to 5.5V37mA Typical Operating at 25°C playing music on earphoneTemperature Range: -40°C to +85C
•PackagesCTBGA100

The AT8xC51SND2C has been developed for handling MP3 ringing tones in mobile phones and can replace sound generators while adding SD/MMC card reader, MP3 music decoding, and connection of the cell phone to a PC through USB. Cell phones can also be used as a thumb drive extending cell phone capabilities.

The AT8xC51SND2C are fully integrated stand-alone hardwired MPEG I/II-Layer 3 decoder with a C51 microcontroller core handling data flow, MP3-player control, Stereo Audio DAC and Mono Audio Power Amplifier for speaker control.

The AT89C51SND2C includes 64K Bytes of Flash memory and allows In-System Programming through an embedded 4K Bytes of Boot Flash memory.
The AT83SND2C includes 64K Bytes of ROM memory.

The AT8xC51SND2C include 2304 Bytes of RAM memory.

The AT8xC51SND2C provides the necessary features for human interface like timers, keyboard port, serial or parallel interface (USB, TWI, SPI, IDE), I2S output, and all external memory inter-face (NAND or NOR Flash, SmartMedia, MultiMedia, DataFlash cards).

The AT8XSND2CMP3B provides also ADC input to the previous configuration. 89SND2CMP3Bincludes 64K Bytes of Flash memory. 83SND2CMP3B includes 64K Bytes of ROM memory.

In the following of the document, AT8xC51SND2C refers to the generic product. When named explicitly, AT8XSND2CMP3B refers to the version with A/D converter.