AT73C246-EK1 Evaluation Kit .................................................................................................................... User Guide 11047A–PMAAC–08-Apr-10 1-2 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide Section 1 Introduction .................................................................................................................1-1 1.1 Scope ................................................................................................................................. 1-1 1.1.1 Typical Applications: ............................................................................................ 1-1 1.2 AT73C246-EK1 Features................................................................................................... 1-2 1.3 Deliverables ....................................................................................................................... 1-3 Section 2 Getting Started............................................................................................................2-1 2.1 Electrostatic Warning ......................................................................................................... 2-1 2.2 Requirements..................................................................................................................... 2-1 2.3 PC System Requirements.................................................................................................. 2-1 2.4 Instructions......................................................................................................................... 2-2 2.4.1 To start the AT73C246-EK1 board (before using the AT73C246-EK1 software) 2-2 2.4.2 To turn off the AT73C246-EK1 evaluation board................................................. 2-2 2.5 Block Diagram.................................................................................................................... 2-3 2.6 Power Supply ..................................................................................................................... 2-4 2.7 Communication Interfaces ................................................................................................. 2-5 2.7.1 Communication Interfaces Header (J15) ............................................................. 2-5 2.8 Audio Interfaces ................................................................................................................. 2-6 2.9 Output Voltages ................................................................................................................. 2-7 2.10 Input/Output Signals........................................................................................................... 2-8 2.10.1 ADC ..................................................................................................................... 2-8 2.10.2 CLK32K - RTC Output Clock ............................................................................... 2-8 2.10.3 LED ...................................................................................................................... 2-8 2.10.4 Wakeup Push Buttons ......................................................................................... 2-9 2.10.5 LDOs Optional Programming Enable .................................................................. 2-9 Section 3 AT73C246-EK1 Software Interface ............................................................................3-1 3.1 Software Panel................................................................................................................... 3-1 3.1.1 Login .................................................................................................................... 3-1 3.1.2 Login Errors ......................................................................................................... 3-1 3.1.3 Functionality and Control Pages .......................................................................... 3-3 Section 4 USB-to-Serial Card .....................................................................................................4-1 4.1 USB-to-Serial Card Features ............................................................................................. 4-1 4.2 Electrostatic Warning ......................................................................................................... 4-1 4.3 Requirements..................................................................................................................... 4-1 4.4 Instructions......................................................................................................................... 4-2 AT73C246-EK1 Evaluation Kit User Guide 1-1 11047A–PMAAC–08-Apr-10 4.4.1 To start the USB-to-Serial Card (after software installation)................................ 4-2 4.4.2 To turn off the USB-to-Serial Card....................................................................... 4-2 4.5 Identification LEDs ............................................................................................................. 4-2 4.6 Serial Interfaces Header .................................................................................................... 4-3 Section 5 Technical Specifications .............................................................................................5-1 5.1 AT73C246-EK1 .................................................................................................................. 5-1 Section 6 PCB Layout.................................................................................................................6-1 6.1 AT73C246-EK1 .................................................................................................................. 6-1 Section 7 Schematics .................................................................................................................7-1 Section 8 Revision History..........................................................................................................8-1 8.1 Revision History ................................................................................................................. 8-1 1-2 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide Section 1 Introduction Congratulations on your purchase of the AT73C246-EK1. It is designed to give designers a quick start to evaluate the power management and audio capability of the AT73C246 and for prototyping and testing of new designs. 1.1 Scope This document describes the AT73C246-EK1. This board is designed to allow an easy evaluation of the products using demonstration software. To increase its capabilities for demonstration, this standalone board has two serial interfaces (TWI and I²S via a dedicated connector), Manual Startup/Reset Control, Input/Audio Connectors, 4 x ADC Inputs, RTC and Output Supply Voltages Terminals. This user guide acts as a general getting started guide as well as a complete technical reference for advanced users. This document refers the AT73C246 datasheet. 1.1.1 Typical Applications: Portable devices AT73C246-EK1 Evaluation Kit User Guide 1-1 11047A–PMAAC–08-Apr-10 1.2 AT73C246-EK1 Features The AT73C246-EK1 provides the following features: Small size (only 70 x 70mm) with maximum available features. Input power supply: – External Power Supply on VIn pad (2.5V to 5.5V). On-board audio/analog resources: – 100dB Dynamic Range Stereo Audio DAC - 8 to 96 kHz sampling frequency, – 4 x 96dB Dynamic Range Stereo Audio ADC - 8 to 96 kHz sampling frequency, – 1 stereo 16/32 Ohm/20mW stereo headset (3.5mm jack connector), – 1 stereo line in (3.5mm jack connector), – 1 auxiliary in (3.5mm jack connector), – 1 stereo line output (3.5mm jack connector), – Stereo microphone inputs with bias generator, On-board power supply resources: – DCDC0 : 0.8 - 3.6V / 600mA, – DCDC1 : 0.8 - 3.6V / 600mA, – LDO2 : 0.8 - 1.9V / 300mA, – LDO3 : 2.7 - 3.6V / 200mA, – LDO4 : 2.7 - 3.6V / 200mA, – LDO5 : 2.5V / 10mA - Backup battery charger and RTC supply, Serial interfaces: – TWI for PMU and Audio controls, – I²S Master / Slave protocol support (for audio streaming), RTC 32KHz output for host support. Reset and Interrupt generation. On-board buttons: – Power Enable (PWREN), – Hard Reset (HRST), – Wakeup Sequence (WAKEUP0). 1-2 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide 1.3 Deliverables The AT73C246-EK1 package contains the following items: 1. An AT73C246-EK1 board, Figure 1-1. AT73C246-EK1 Top View (card photo) The AT73C246 is located in the center of the AT73C246-EK1 on the Components Side. 2. USB Interface card, AT73C246-EK1 Evaluation Kit User Guide 1-3 11047A–PMAAC–08-Apr-10 3. USB cable, 4. 20-pins flat cable, 5. One CD-ROM containing the product’s user guide, full datasheet and ready to use GUI and Command line applications. 1-4 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide Figure 1-2. AT73C246-EK1 Components Side AT73C246-EK1 Evaluation Kit User Guide 1-5 11047A–PMAAC–08-Apr-10 1-6 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide Section 2 Getting Started 2.1 Electrostatic Warning The AT73C246-EK1 evaluation board is shipped in protective anti-static packaging. The board must not be subjected to high electrostatic potentials. A grounding strap or similar protective device should be connected when handling the board. Avoid touching the components pins or any metallic element. 2.2 Requirements In order to set up the AT73C246-EK1 evaluation kit the following items are needed: 1. The AT73C246-EK1 evaluation board itself. 2. A DC 2.9V to 5.5V, connected to Vin pad, output power source for main supply (minimum 1 A are required for fully operation). 3. The USB interface card with its USB cable and 20-pins flat cable. 4. Input/Output devices (Headset, Microphone, etc) 5. PC station with a USB connection (i.e. Universal Serial Bus) for command communication (via USB interface card). 2.3 PC System Requirements For a correct software operation of the AT73C246-EK1 evaluation board, the minimum hardware and software PC requirements are: Intel Pentium II processor 64 MB RAM 70 MB free hard disk space (for AT73C246 Evaluation board software installation) Windows® 2000/XP/VISTA A USB connection. AT73C246-EK1 Evaluation Kit User Guide 2-1 11047A–PMAAC–08-Apr-10 2.4 Instructions 2.4.1 To start the AT73C246-EK1 board (before using the AT73C246-EK1 software) 2.4.2 Install the AT73C246 software by clicking on setup.exe. If the software is downloaded from the Atmel Web site then it is necessary to install first the National Instrument Labview software (LabVIEW8.0.1RuntimeEngine). Connect Input and Output devices to the AT73C246-EK1 board (into linein, Headset, Microphone, etc..) as in Section 2.8 ”Audio Interfaces” on page 2-6, Connect DC power supply on P1 and P2. Connect the USB cable between the PC and the USB Interface card and when the PC requests an “inf” driver point to “CompositeCDCSerial.inf” in USB Driver folder, Connect the 20-pins flat cable between the to USB Interface card header and the AT73C246-EK1 board. Launch the AT73C246 software test interface by clicking on AT73C246.exe (and follow instructions in “AT73C246-EK1 Software Interface” on page 3-1 and “USB-to-Serial Card” on page 4-1) Push once on PWREN button (the AT73C246-EK1 on-board “LED (D1)” should blink) To turn off the AT73C246-EK1 evaluation board Disconnect the 20-pins flat cable, Disconnect the power supply on P1 and P2. 2-2 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide 2.5 Block Diagram Figure 2-1. AT73C246-EK1 Block Diagram AT73C246-EK1 AT73C246 Mic In R Mic In L VIN Aux In AUDIO CODEC Line Out TWI From Extended Card or Microcontroller 20 Pins Header Line In Headset Out I²S CLK32K RSTB ITB LED ADC 0 to 4 WAKEUP0 HRST PWREN AT73C246-EK1 Evaluation Kit User Guide POWER MANAGMENT 4 Pins Header BUCK 0 VDD0 BUCK 1 VDD1 LDO 2 VDD2 LDO 3 VDD3 LDO 4 VDD4 LDO 5 VBACKUP LDO 6 VDDC 2-3 11047A–PMAAC–08-Apr-10 2.6 Power Supply The AT73C246-EK1 is supplied by an external power supply connected on P1 (positive supply) and P2 (ground). Figure 2-2. Power Supply Diagram AT73C246-EK1 AT73C246 POWER MANAGMENT VIN Min 1A for fully operation P1 P2 BUCK 0 VDD0 BUCK 1 VDD1 LDO 2 VDD2 WAKEUP0 LDO 3 VDD3 HRST LDO 4 VDD4 AGND VDD0 VBACKUP VBACKUP LDO 5 PWREN LDO 6 VDDC . Table 2-1. Electrical Supply Requirements Power supply source Min Max Unit On P1 pad (minimum 1 A for fully operation) 3.1 5.5 V Note: Figure 2-3. This power supply input is NOT protected against polarization inversion. Vin Supply Pad (P1 & P2) G1 P1 P2 Connect the power supply (+) to P1 and the ground (-) to P2. Note: 2-4 11047A–PMAAC–08-Apr-10 Keep G1 soldered to insure connection between the AGND (analog ground on P2) and DGND (digital ground). AT73C246-EK1 Evaluation Kit User Guide 2.7 Communication Interfaces 2.7.1 Communication Interfaces Header (J15) The following table details the pin assignments for each signal. All signal, I²S or TWI, are processed by the USB-to-Serial module. If needed the user can drive directly these signals (using a microcontroller for example) trough J15. Table 2-2. Communication Interface Header Pins Assigning Pin N° Signal Name Description Pin N° Signal Name Description 1 WAKEUP3 - 2 Vin Not Used 3 WAKEUP2 - 4 DGND Digital Ground 5 WAKEUP1 - 6 - Not Used 7 RSTB Component Reset 8 DGND Digital Ground 9 TWCK TWI Clock 10 VDDIO I/O level 11 LRFS-Signal I²S Frame Clock 12 MCLK I²S Master Clock 13 DAI-Signal I²S Data in 14 ITB Interrupt 15 DAO-Signal I²S Data out 16 - Not Used 17 BCLK-Signal I²S Bit Clock 18 - Not Used 19 - Not Used 20 TWD TWI Data I\O Figure 2-4. Communication Interfaces Header (J15) J15 Note: 19 1 20 2 For a reason of I/O level configuration between the AT73C246 and an external microcontroller and If using another interface then the USB Communication Box, the VDD3 or VDD0 should be connect on J15 by soldering a 0 ohms resistor on its pads (see VPAD Selection “AT73C246-EK1 Schematic - Power Supply Page” on page 7-5). AT73C246-EK1 Evaluation Kit User Guide 2-5 11047A–PMAAC–08-Apr-10 2.8 Audio Interfaces The AT73C246-EK1 CODEC interface contains various connections of audio elements: Microphones Inputs connected to J5 and J6 (2 pins header for each input). Auxiliary Input connected to J4 (3.5mm jack). Line Input connected to J3 (3.5mm jack). Line Output connected to J2 (3.5mm jack). Headset Output connected to J1(3.5mm jack). Please consult the product data sheet for setup options and requirements. Figure 2-5. Microphones Inputs (J5 and J6) Microphone Left Input Microphone Right Input Figure 2-6. Audio Inputs and Outputs (J1, J2, J3 and J4) Auxiliary Input Line Input Line Output Headset Output 2-6 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide 2.9 Output Voltages In order to measure the output voltages connect a Volt-meter probe to the requested Test-Point by the following list: VDD0 - J8; 0.8 - 3.6V / 600mA VDD1 - J9; 0.8 - 3.6V / 600mA VDD2 - J12; 0.8 - 1.9V / 300mA VDD3 - J13; 2.7 - 3.6V / 200mA VDD4 - J19; 2.7 - 3.6V / 200mA VBACKUP - J10; 2.5V / 10mA (an additional connector J11 is available for rechargeable coin type battery) Figure 2-7. Output Voltages Test-Points (J8, J8, J12, J13, J19) VDD4 VDD3 VDD2 VDD1 VDD0 Figure 2-8. VBACKUP and VCOIN (J10 and J11) VBACKUP VCOIN AT73C246-EK1 Evaluation Kit User Guide 2-7 11047A–PMAAC–08-Apr-10 2.10 Input/Output Signals 2.10.1 ADC Connect an external analog signal to ADC connector J14. Figure 2-9. ADC connector (J14) ADC 0 to 3 2.10.2 CLK32K - RTC Output Clock The AT73C246-EK1 provides measuring the internal oscillator frequency (J7). Figure 2-10. CLK32K (J7) RTC Output Clock 2.10.3 LED The programmable output LED pin can be visualize by the on board led (D1). Figure 2-11. LED (D1) Led 2-8 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide 2.10.4 Wakeup Push Buttons The AT73C246-EK1 provides 3 on board wakeup push buttons for startup/shutdown operations. HRST - Pressing it for 1 second reset the AT73C246 (when the AT73C246 in “ON”). PWREN - Pressing it for 5 sec start/stop the AT73C246. WAKEUP0 - Pressing it once enable the sequence in PMU_WAKEUP_EVENMENT register. On the other hand, when the AT73C246 in “ON”, pressing it for 1 second switch the AT73C246 into standby mode. Figure 2-12. Wakeup Push Buttons (SW2, SW3 and SW4) HRST 2.10.5 PWREN WAKEUP0 LDOs Optional Programming Enable Close J20 before any access to the state machine LDOs startup sequences. Programming Jumper AT73C246-EK1 Evaluation Kit User Guide 2-9 11047A–PMAAC–08-Apr-10 2-10 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide Section 3 AT73C246-EK1 Software Interface 3.1 Software Panel 3.1.1 Login 1. Connect the USB cable to the USB Interface card and check which COM it uses. Go to Device Manager in the Control Panel of your computer and then look for “AT91 USB to Serial Converter” title in PORTS. 2. On setup panel - Select Port and required operation: Init AT73C246 for initializing card or Exit program. Figure 3-1. Login Message Communication port selection Operation selection 3.1.2 Login Errors USB Communication Issue In software startup - In case of “Communication Issue” check USB cable connectivity and/or COM selection. Then, select Retry or Exit. Figure 3-2. Communication Error AT73C246-EK1 Evaluation Kit User Guide 3-1 11047A–PMAAC–08-Apr-10 USB Connection Issue While software runs - In case of “Connection Issue” check USB cable connectivity. Then, select Retry or Exit. Figure 3-3. 3-2 11047A–PMAAC–08-Apr-10 Connection Issue AT73C246-EK1 Evaluation Kit User Guide 3.1.3 Functionality and Control Pages AT startup (after pressing on WAKEUP button) the user can choose to initialize by clicking on “Example Init_audio” button (the initialization can be done manually or programmed by microcontroller). This action will startup the following elements: Audio Codec - for this example the first path is chosen - “Digital In - Headphone Out”. Power Management Unit Blinking Led Figure 3-4. Software Panel - General Purpose Serial port OK Product “OFF” Serial port OK Product “ON” Serial port not connected Product off (no connection) Read Registers Command Audio Initialisation (Demonstration example) Registers Table ADC Sampling Period ADC Function Sampling Elements AT73C246-EK1 Evaluation Kit User Guide 3-3 11047A–PMAAC–08-Apr-10 Figure 3-5. Software Panel - Audio Configuration Path Select Codec Standby Codec On/Off Codec Configuration I²S Configuration Figure 3-6. Software Panel - Audio Input-Output Audio Input Control Audio Output Control Audio Input Mixer 3-4 11047A–PMAAC–08-Apr-10 Headphone Plug In-Out Detector AT73C246-EK1 Evaluation Kit User Guide Figure 3-7. Software Panel - Audio Effect & Microphone Mono Control ADC/DAC Control 3D Effect Microphone Control De-emphasis Filter Headphone Tone Control Figure 3-8. Software Panel - Audio Volume Path Mute Microphone Volume AT73C246-EK1 Evaluation Kit User Guide Sidetone Line Gain Headphone Volume 3-5 11047A–PMAAC–08-Apr-10 Figure 3-9. Software Panel - Power Management Standby Setup Wakeup Events Wakeup Trig Product Off (In order to startup press PWREN button) Standby Command (Product will wakeup according to requestsevents with elements marked in blue) VDD4 Control Output Voltage VDD3 Control VDD2 Control Working Mode On/Off Command VDD0 Control VDD1 Control Led Control Figure 3-10. Software Panel - Register Mapping Read Command Write Command Data Write Data Read Register Address Registers Access Registers Table 3-6 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide Section 4 USB-to-Serial Card The USB-to-Serial Card provides computer terminals to communicate with all PMAAC product line. It gives designers all necessary for a quick setup of an evaluation card and it supports different product’s software. To increase its capabilities for demonstration, this standalone board has 3 serial interfaces (I²S, TWI and SPI). 4.1 USB-to-Serial Card Features The USB-to-Serial Card provides the following features: On-board resources: – Standard USB interface, – 20 leads GPIO connector, – 12.288MHz Clock output for digital core, Serial interfaces: – Bidirectional buffered USB to SPI – Bidirectional buffered USB to TWI – Bidirectional buffered USB to I²S On-board indication leds: – Power “ON” – Data transmitting 4.2 Electrostatic Warning The USB-to-Serial Card evaluation board is shipped in protective plastic packaging. The board must not be subjected to high electrostatic potentials. Avoid touching the components pins or any metallic element. 4.3 Requirements In order to set up the USB-to-Serial Card the following items are needed: 1. The USB-to-Serial Card itself. 2. PC station with a standard USB connector. 3. The 20-leads flat cable. AT73C246-EK1 Evaluation Kit User Guide 4-1 11047A–PMAAC–08-Apr-10 4.4 Instructions 4.4.1 To start the USB-to-Serial Card (after software installation) 4.4.2 Connect the USB cable to the USB-to-Serial Card and verify led color is green and constant, Connect the 20-pins flat cable between the to USB-to-Serial Card and the evaluation board. Once the USB-to-Serial Card properly installed; it should operate transparently - as if it were a standard cable connection. There is no ON/OFF switch and all data signals from and to the PC are passed straight through. To turn off the USB-to-Serial Card Disconnect the USB cable. Figure 4-1. USB Side USB Connector Figure 4-2. 4.5 GPIO Side Pin N°19 Pin N°1 Pin N°20 Pin N°2 Identification LEDs The bi color LED indentify the following statuses: – Continuous Green - Power “ON” – Blinking Red - Data transmitting 4-2 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide 4.6 Serial Interfaces Header The USB-to-Serial Card supports I²S, SPI and TWI protocols which configured automatically by the software. The following table details the pins assigning for each signal on the GPIO connector (2x10 pins header Type HE10 for flat cable). Note: In most cases, a clock must run during any I²S, SPI or TWI write access. In any case of not using the Serial Board and connecting an external communication system for I²S, SPI or TWI a clock should be provided to the supported evaluation card. Table 4-1. Serial Interface Header Pins Assigning Pin N° 1 Signal Name Description (1) Pin N° Signal Name Description MOSI SPI Data out 2 ADJ_VOUT Not Used 3 SPCK (1) 4 GND Ground(4) 5 NPCS1 SPI Chip Select 1(1) 6 +3V3 Not Used 7 NPCS0 (1) 8 GND Ground(4) 9 TWCK TWI CLK(1) 10 Vin_VDDIO Input supply from supported card(2) 11 LRFS I²S Frame Clock(1) 12 MCLK 12.288MHz Output clock for supported digital core(1)(5) 13 SDIN_Codec I²S Data in(2) SPI CLK SPI Chip Select 0 I²S Data out 14 IRQ Interrupt Request (1) 16 nRST_in Reset in(2) 15 SDOUT_Codec 17 BCLK_Codec I²S Bit Clock(1) 18 MISO SPI Data in(2) 19 AD4 Not Used 20 TWD TWI Data(3) Notes: 1. An output signal from USB-to-Serial Card to supported card. 2. An input signal from supported card to USB-to-Serial Card. 3. A Bi-dirctional signal. 4. Ground - These pins must be connected between the USB-to-Serial Card and the supported board. 5. 12.288 MHz Clock - The USB-to-Serial Card’s oscillator provides a 12.288MHz clock (+3.3V p-p via pin 12). This clock is necessary for driving the digital core of the evaluated board. AT73C246-EK1 Evaluation Kit User Guide 4-3 11047A–PMAAC–08-Apr-10 4-4 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide Section 5 Technical Specifications 5.1 AT73C246-EK1 System Unit: AT73C246-EK1 – Physical Dimensions............................................................................................ L= 70 x W=70 x H=20 mm – Weight.........................................................................................................................................................70 g Operating Conditions – External Voltage Supply (on Vin Pad)........................................................................................... 2.9V - 5.5V Connections – Communication Connector (for I²S and TWI)....................................................................2x10 pins Header AT73C246-EK1 Evaluation Kit User Guide 5-1 11047A–PMAAC–08-Apr-10 5-2 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide Section 6 PCB Layout 6.1 AT73C246-EK1 Figure 6-1. Note: Layer 1 - Components Layer Size not to scale AT73C246-EK1 Evaluation Kit User Guide 6-1 11047A–PMAAC–08-Apr-10 Figure 6-2. Note: 6-2 11047A–PMAAC–08-Apr-10 Layer 2 Size not to scale AT73C246-EK1 Evaluation Kit User Guide Figure 6-3. Note: Layer 3 Size not to scale AT73C246-EK1 Evaluation Kit User Guide 6-3 11047A–PMAAC–08-Apr-10 Figure 6-4. Note: 6-4 11047A–PMAAC–08-Apr-10 Layer 4 - Print Side Size not to scale AT73C246-EK1 Evaluation Kit User Guide Figure 6-5. Silk Screen AT73C246-EK1 Evaluation Kit User Guide 6-5 11047A–PMAAC–08-Apr-10 6-6 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide Section 7 Schematics Figure 7-1. AT73C246-EK1 Schematic - Main Page AT73C246-EK1 Evaluation Kit User Guide 7-1 11047A–PMAAC–08-Apr-10 Figure 7-2. 7-2 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Schematic - AT73C246 Page AT73C246-EK1 Evaluation Kit User Guide Figure 7-3. AT73C246-EK1 Schematic - Audio Interface Page AT73C246-EK1 Evaluation Kit User Guide 7-3 11047A–PMAAC–08-Apr-10 Figure 7-4. 7-4 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Schematic - Digital Interface Page AT73C246-EK1 Evaluation Kit User Guide Figure 7-5. AT73C246-EK1 Schematic - Power Supply Page AT73C246-EK1 Evaluation Kit User Guide 7-5 11047A–PMAAC–08-Apr-10 7-6 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide Section 8 Revision History 8.1 Revision History Table 8-1. Revision History Doc. Rev Date 11047A 08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide Comments Change Request Ref. 8-1 11047A–PMAAC–08-Apr-10 8-2 11047A–PMAAC–08-Apr-10 AT73C246-EK1 Evaluation Kit User Guide Headquarters International Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Atmel Asia Unit 1-5 & 16, 19/F BEA Tower, Millennium City 5 418 Kwun Tong Road Kwun Tong, Kowloon Hong Kong Tel: (852) 2245-6100 Fax: (852) 2722-1369 Atmel Europe Le Krebs 8, Rue Jean-Pierre Timbaud BP 309 78054 Saint-Quentin-enYvelines Cedex France Tel: (33) 1-30-60-70-00 Fax: (33) 1-30-60-71-11 Atmel Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel: (81) 3-3523-3551 Fax: (81) 3-3523-7581 Technical Support Atmel techincal support Sales Contacts www.atmel.com/contacts/ Product Contact Web Site www.atmel.com www.atmel.com/products/powermanage/default.asp Literature Requests www.atmel.com/literature Disclaimer: The information in this document is provided in connection with Atmel products. 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