HPL/HPR/MIC Evaluates: MAX98091 (TQFN) MAX98091 TQFN Evaluation Kit General Description Features The MAX98091 evaluation kit (EV kit) is a fully assembled 2.8V to 5.5V Single-Supply Operation and tested circuit board that evaluates the MAX98091 2 On-Board USB-to-I C Interface audio codec. The MAX98091 is an integrated audio codec 2 On-Board USB-to-I S Converter including an earpiece amplifier, stereo Class D amplifier, stereo DirectDrive headphone amplifier, and digital sig- On-Board S/PDIF Transceiver nal processing. On-Board Clock Source To enable easy connection to a wide range of audio On-Board Digital Microphone sources, the EV kit includes audio devices to convert Windows XP-, Windows 7-, and Windows 2 both USB and S/PDIF data to I S data. The EV kit also 8-Compatible Software 2 integrates a MAXQ2000 microcontroller to enable I C 2 Fully Assembled and Tested and SPI communication with the on-board I C- and SPI- capable devices. A simple and intuitive graphical user interface (GUI) provides communication with the EV kit through Windows OS running Windows XP -, Windows -, or 7 Windows 8-compatible software. Ordering Information appears at end of data sheet. Simplified EV Kit Block Diagram MAX98091 TQFN EVKIT LOUTR LOUTL Analog Outputs Audio DAC USB AVDD DVDD DVDDIO HPVDD With USB 1.8V 1.2V/1.8V 1.8V/3.3V 1.8V AUDIO Interface SPKVDD MAX98091 SPDIFIN U1 SPKR S/PDIF Transceiver SPDIFOUT SPKL 2 I C, SPI, GPIO DMICs Analog Inputs Interface USB CONTROL IN1 IN2 IN3 IN4 Automatic Configuration Switch (SW1) DirectDrive is a registered trademark of Maxim Integrated Products, Inc. Windows and Windows XP are registered trademarks and registered service marks of Microsoft Corporation. 319-100032 Rev 0 6/17Evaluates: MAX98091 (TQFN) MAX98091 TQFN Evaluation Kit 6) Connect a USB cable between the PC and the J1 Quick Start USB port (USB CONTROL) on the EV kit. A Required Equipment Windows message appears when connecting to the MAX98091 EV kit (TQFN) EV kit for the first time. Each version of Windows might have a slightly different message. If Windows Two A to mini-B USB cables (included) reports that the device is ready to use, then the USB 2.8V to 5.5V, 2A DC power supply driver has been installed successfully. Set of headphones with a 3.5mm plug 7) If needed, the USB driver can be manually installed by navigating to the C: Program Files(x86) Maxim User-supplied Windows XP, Windows 7, Integrated MAX98091 Evaluation Software folder or Windows 8 PC with two available USB ports (default installation directory) and following the in- Note: In the following sections, software-related items are structions in the USB Driver Help.PDF document. identified by bolding. Text in bold refers to items directly The help file is located in the USBDriver folder. from the EV kit software. Text in bold and underlined 8) Connect the headphones to the headphone jack (HP). refers to items from the Windows operating system. 9) Start the MAX98091 Evaluation Software by opening its icon in the Start Programs Maxim Integrated Procedure MAX98091 Evaluation Software menu. The soft- The following steps are used to configure the EV kit for ware main window appears, as shown in Figure 3. PC audio playback to verify the EV kits functionality: 10) Wait while the software connects to the EV kit. Once 1) Visit www.maximintegrated.com/evkitsoftware the connection is established, the status bar at the to download the latest version of the MAX98091 bottom indicates that the USB and MAX98091 are software, MAX98091EVSwSetupVx.x.ZIP. Save the connected. software to a temporary folder and uncompress the 11) Once the USB and device connections have been ZIP file. established, select the Block Diagram tab. 2) Install the software and USB driver on your computer 12) Click on the USB block. by running the executable (.exe) program inside the 13) Click Yes to automatically configure the EV kit for temporary folder. The program files are copied and USB audio playback. icons are created in the Windows Start Programs 14) Connect a USB cable between the PC and the J2 Maxim Integrated MAX98091 Evaluation Soft- USB port (USB AUDIO). Windows automatically ware menu. During software installation, some ver- detects the EV kit as a sound card and installs the sions of Windows might show a message indicating USB audio class drivers. that this software is from an unknown publisher. This 15) Open Windows Sound dialog and select the is not an error condition and it is safe to proceed with Playback tab. A USB Audio DAC item, similar to the installation. Figure 2, is added to the list of available playback 3) Verify that all jumpers are in their default positions, as devices. All audio played through this device is sent shown in Figure 1 (same as listed in Table 2). to the EV kit. 4) Connect the power supply between the SPKVDD and 16) Verify that the USB Audio DAC item is set as the GND PCB pads. default device. 5) Set the power supply to 4.2V with a 2A current limit 17) Verify that audio can be heard through the connected and turn it on. headphones. 18) Quick start complete. Refer to the MAX98091 IC data sheet for additional information. Table 1. MAX98091 Software Install Folder ITEM DESCRIPTION MAX98091.exe MAX98091 evaluation software USBDriver/FTDI/CDM21000.exe USB driver installer USBDriver/USB Driver Help 300.pdf USB driver installation help file Uninstall.exe Uninstalls the MAX98091 evaluation software Maxim Integrated 2 www.maximintegrated.com