Manuel D’UtilisationTable des matièresFEATURES2General2Audio playback channel2Audio recording channel2USB endpoints2Document references2APPLICATIONS3GENERAL DESCRIPTION3ORDERING INFORMATION3QUICK REFERENCE DATA4BLOCK DIAGRAM5PINNING6FUNCTIONAL DESCRIPTION9The Universal Serial Bus (USB)9The analog front-end9The USB processor9Bit clock recovery9Philips Serial Interface Engine (PSIE)9Memory Management Unit (MMU) and integrated RAM10Audio Sample Redistribution (ASR)10The 80C51 microcontroller10The Analog-to-Digital Interface (ADIF)10Programmable Gain Amplifier circuit (PGA)10The Analog-to-Digital Converter (ADC)10The Decimation Filter (DF)10The clock source of the analog-to-digital interface11The Asynchronous Digital-to-Analog Converter (ADAC)12The Sample Frequency Generator (SFG)12First-In First-Out (FIFO) registers12The sound processing DSP12The upsampling filters and variable hold function12The noise shaper12The Filter Stream DAC (FSDAC)12USB ENDPOINT DESCRIPTION13CONTROLLING THE PLAYBACK FEATURES13Controlling the playback features of the ADAC13Soft mute control16Volume control17Treble control18Bass control18De-emphasis19Filter characteristics playback channel20DSP extension port for enhanced playback audio processing21PORT DEFINITION 80C5123Port 123Port 323MEMORY AND REGISTER SPACE 80C5124Overview registers24Interrupts24Internal registers25START-UP BEHAVIOUR AND POWER MANAGEMENT28Start-up of the UDA132528Power Management28COMMAND SUMMARY30COMMAND DESCRIPTIONS31Command procedure31Initialization commands31Data flow commands32General commands35I 2 C MASTER/SLAVE INTERFACE35Characteristics of the I 2 C-bus35Programmer’s view35S1CON register35LIMITING VALUES37THERMAL CHARACTERISTICS37RECOMMENDED OPERATING CONDITIONS37DC CHARACTERISTICS38AC CHARACTERISTICS40APPLICATION INFORMATION44PACKAGE OUTLINES47SOT270-147SOT319-248SOLDERING49DEFINITIONS51LIFE SUPPORT APPLICATIONS51PURCHASE OF PHILIPS I 2 C COMPONENTS51Taille: 240 koPages: 52Language: EnglishOuvrir le manuel