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CS47028C-CQZ 数据表(PDF) 3 Page - Cirrus Logic |
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CS47028C-CQZ 数据表(HTML) 3 Page - Cirrus Logic |
3 / 40 page CS470xx Data Sheet Audio SOC Processor Family DS787PP1 Copyright 2009 Cirrus Logic 3 Table of Contents FEATURES ......................................................................................................................... 1 1. Documentation Strategy .........................................................................................................6 2. Overview ..................................................................................................................................6 2.1 Licensing ............................................................................................................................................... 6 3. Code Overlays .........................................................................................................................7 4. Hardware Functional Description .......................................................................................10 4.1 Crystal 32-bit DSP Core ...................................................................................................................... 12 4.2 DSP Memory ....................................................................................................................................... 12 4.2.1 DMA Controller ....................................................................................................................... 12 4.3 On-chip DSP Peripherals .................................................................................................................... 13 4.3.1 Analog to Digital Converter Port (ADC) .................................................................................. 13 4.3.2 Digital to Analog Converter Port (DAC) .................................................................................. 13 4.3.3 Digital Audio Input Port (DAI) .................................................................................................. 13 4.3.4 S/PDIF RX Input Port (DAI) .................................................................................................... 13 4.3.5 Digital Audio Output Port (DAO) ............................................................................................. 13 4.3.6 S/PDIF TX Output Port (DAO) ................................................................................................ 14 4.3.7 Sample Rate Converters (SRC) .............................................................................................14 4.3.8 Serial Control Port (I2C or SPI) ............................................................................................... 14 4.3.9 GPIO ....................................................................................................................................... 14 4.3.10 PLL-based Clock Generator ................................................................................................. 14 4.3.11 Hardware Watchdog Timer ................................................................................................... 14 4.4 DSP I/O Description ............................................................................................................................ 15 4.4.1 Multiplexed Pins ..................................................................................................................... 15 4.4.2 Termination Requirements ...................................................................................................... 15 4.4.3 Pads ....................................................................................................................................... 15 4.5 Application Code Security ................................................................................................................... 15 5. Characteristics and Specifications .....................................................................................16 5.1 Absolute Maximum Ratings ................................................................................................................. 16 5.2 Recommended Operating Conditions ................................................................................................. 16 5.3 Digital DC Characteristics ................................................................................................................... 16 5.4 Power Supply Characteristics ............................................................................................................. 17 5.5 Thermal Data (100-Pin LQFP with Exposed Pad) ...............................................................................17 5.6 Digital Switching Characteristics— RESET ......................................................................................... 18 5.7 Digital Switching Characteristics — XTI ............................................................................................. 19 5.8 Digital Switching Characteristics — Internal Clock .............................................................................. 19 5.9 Digital Switching Characteristics — Serial Control Port - SPI Slave Mode ......................................... 20 5.10 Digital Switching Characteristics — Serial Control Port - SPI Master Mode ..................................... 21 5.11 Digital Switching Characteristics — Serial Control Port - I2C Slave Mode ........................................ 22 5.12 Digital Switching Characteristics — Serial Control Port - I2C Master Mode ...................................... 23 5.13 Digital Switching Characteristics — Digital Audio Slave Input Port ................................................... 24 5.14 Digital Switching Characteristics — Digital Audio Output Port .......................................................... 25 5.15 Digital Switching Characteristics — S/PDIF RX Port (Not available on CS47024) ........................... 26 5.16 ADC Characteristics .......................................................................................................................... 27 5.16.1 Analog Input Characteristics (Commercial) .......................................................................... 27 5.16.2 Analog Input Characteristics (Automotive) ........................................................................... 28 5.16.3 ADC Digital Filter Characteristics ......................................................................................... 30 5.17 DAC Characteristics .......................................................................................................................... 30 5.17.1 Analog Output Characteristics (Commercial) ....................................................................... 30 |
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