TL7231MD Datasheet | Samsung Semiconductor

FULL LAYER-III ISO/IEC 11172-3 AUDIO DECODER n n n n n Single-chip ISO/IEC 11172-3 Layer n III Audio Decoder n Supports All MPEG Bit Rates n Including Free Format Supports 32/44.1/48KHz Sampling n Frequencies for MPEG Bit Stream n Supports Single Channel, Dual Channel, Stereo, and Joint Stereo n Any bination of Intensity Stereo and MS Stereo is supported. Serial Bit Stream Input 8-bit Host Interface Port Digital Volume Control Digital Bass/Treble Control n n n n 6-Band Equalizer Function Voice Record/Playback Capability On-chip DAC with 1-bit Sigma Delta Modulation Supports Off-chip DAC Interface On-chip ADC with 12-bit Resolution Power Management to Reduce Power Consumption PLL for Internal Clocks and for Output PCM Clock Generation Single 16.9344MHz External Clock Input 3.0 V Operation Small Footprint 100-pin Thin Quad Flat Package n n n n DESCRIPTION TL7231MD is a single-chip ISO/IEC 11172-3 Layer III audio decoder, capable of decoding pressed elementary bit streams as specified in ISO/IEC standard. Since it integrated onchip ADC and on-chip DAC, it can provide you more small and cheaper solution for MP3 player application. It is designed to be well suited for portable audio appliances. TL7231MD receives the input data bit stream through a serial data interface. The decoded signal is 16-bit serial PCM format that can be sent directly to DAC. The generated PCM data can be sent to on-chip DAC or off-chip DAC according to user preference. The off-chip DAC interface is programmable to adapt the PCM output of TL7231MD to the most mon DACs used on the market. An 8-bit host interface port is provided to receive control information from and send status information to host. 8-bit microcontrollers such as those of Intel or Motorola can be connected easily. TL7231MD has the capability of pressing voice signals. It can receive voice signals through on-chip ADC. The pressed voice signals are transmitted to or received from host through serial data...