ACU7503

ACU7503 Datasheet Latest Version: 1.3 ACU7503PRODUCT DATASHEET Declaration Circuit diagrams and other information relating to products of Actions Semiconductor Company, Ltd. (“Actions”) are included as a means of illustrating typical applications. Consequently, complete information sufficient for construction is not necessarily given. Although the information has been examined and is believed to be accurate, Actions makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and disclaims any responsibility for inaccuracies. Information in this document is provided solely to enable use of Actions’ products. The information presented in this document does not form part of any quotation or contract of sale. Actions assumes no liability whatsoever, including infringement of any patent or copyright, for sale and use of Actions’ products, except as expressed in Actions’ Terms and Conditions of Sale for. 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Ver 1.3 Page 3 2007-1-22 ACU7503PRODUCT DATASHEET Contents Declaration...................................................................................................................... 2 Contents .......................................................................................................................... 4 1 2 Introduction.............................................................................................................. 6 Pin Description ........................................................................................................ 7 2.1 2.2 Pin Assignment .................................................................................................................... 7 Pin Definition ........................................................................................................................ 8 3 Function Description ............................................................................................ 11 3.1 Functional Block Diagram ................................................................................................ 11 3.2 MCU Core............................................................................................................................. 11 3.2.1 Internal RAM .............................................................................................................. 12 3.2.2 Internal ROM .............................................................................................................. 12 3.2.3 External RAM/ROM Access...................................................................................... 12 3.3 DSP Core ............................................................................................................................. 12 3.4 Clock Management Unit (CMU)........................................................................................ 13 3.4.1 HOSC............................................................................................................................ 13 3.5 Power Management Unit (PMU) ...................................................................................... 13 3.5.1 Voltage Generator...................................................................................................... 13 3.5.2 Voltage monitor.......................................................................................................... 13 3.5.3 External Power Supply Controller............................................................................ 14 3.6 3.7 DMA Controller ................................................................................................................... 14 GPIO and Multifunction Configuration............................................................................ 14 3.8 USB 2.0 SIE ......................................................................................................................... 14 3.8.1 Features ...................................................................................................................... 15 3.8.2 USB Using Memory.................................................................................................... 15 3.9 3.10 Nand Flash and SMC Controller....................................................................................... 15 Key Scan Interface............................................................................................................. 16 Copyright © Actions Semiconductor Co., Ltd. 2006. 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Ver 1.3 Page 4 2007-1-22 ACU7503PRODUCT DATASHEET 3.11 3.12 DAC....................................................................................................................................... 16 ADC .................................................................................................................................. 16 4 Electrical Characteristics...................................................................................... 17 4.1 4.2 4.3 Absolute Maximum Ratings ............................................................................................. 17 Capacitance ........................................................................................................................ 17 DC Characteristics.............................................................................................................. 17 4.4 AC Characteristics.............................................................................................................. 18 4.4.1 AC Test Input Waveform ........................................................................................... 18 4.4.2 AC Test Output Measuring Points............................................................................ 18 4.4.3 Reset Parameter........................................................................................................ 19 4.4.4 Initialization Parameter............................................................................................ 19 4.4.5 GPIO Interface Parameter........................................................................................ 19 4.4.6 Ordinary ROM Parameter......................................................................................... 20 4.4.7 External System Bus Parameter ............................................................................. 21 4.4.8 Bus Operation............................................................................................................. 21 4.4.9 A/D Converter Characteristics................................................................................. 22 4.4.10 Headphone Driver Characteristics Table................................................................ 23 4.4.11 LCM Driver Parameter .............................................................................................. 24 5 Soldering Conditions and Package Description ............................................... 25 5.1 5.2 5.3 5.4 5.5 Recommended Soldering Conditions (Lead Free) ........................................................ 25 Precaution against ESD for Semiconductors ................................................................ 25 Handling of Unused Input Pins for CMOS....................................................................... 26 Status before Initialization of MOS Devices................................................................... 26 ACU7503 Package Drawing............................................................................................. 26 Copyright © Actions Semiconductor Co., Ltd. 2006. All rights reserved. Ver 1.3 Page 5 2007-1-22 ACU7503PRODUCT DATASHEET 1 Introduction The ACU7503 is one of the ACU750x Single-cell Series SOC which is the second generation highly-integrated digital music system solutions for devices such as audio players and photo viewers. Besides an audio decoder with a high performance DSP that has built-in RAM and ROM, the ACU7503 includes ADPCM record capabilities and USB interface for downloading and uploading. It also provides interface for flash memory, LED/ OLED/color LCD, buttons and switch inputs, headphone, microphone, and FM radio input and control. The ACU7503 has programmable architecture supporting the WMA and other digital audio standards. For storage device, it can act as a USB mass storage slave device to personal computer system. ACU7503 has low power consumption to ensure longer battery life. It has two flexible on-chip DC-DC converters using 1xAA or 1xAAA battery as power supply. And a Low Drop Regulator is also embedded to replace one of the DC-DC generating VDD when Battery is not present. The built-in Sigma-Delta (Σ-Δ) DAC includes a headphone driver to directly drive low impedance headphone(s). The ADC includes inputs for both Microphone and Analog Audio In to support voice and FM radio recording. Thus, it provides a true ‘ALL-IN-ONE’ solution that is ideally suitable for highly optimized digital multimedia players. Features Instruction set of MCU compatible with Z80 Internal SRAM access time