UAM-P2050

AUDIO MODULE FOR AUDIO GLASSES DANUBE 5.0 UAM-P2050 | PRODUCT BRIEF The Danube 5.0 audio module is an easy-to-use kit for rapid prototyping of smart eyewear. It provides the best-inclass ratio between audio performance and the required mechanical volume to enhance glasses with an appealing sound in a 2-way audio system, by combining a MEMS tweeter and an ED woofer. The module and its fixture are intended as a reference design for audio-enabled glasses, but can also be used as a demonstrator for other wearable applications. This module is an extension kit of the development board Helike UA-E3010. DANUBE FEATURES „ Two-way audio system for high sound quality „ Tweeter: USound MEMS speaker Adap „ Woofer: 15 x 8 x 2.5 mm electrodynamic speaker HELIKE DEVELOPMENT BOARD FEATURES „ Stand-alone mode (SD card playback) „ Extension to Raspberry Pi platform via I2S interface „ Multiple supply options „ Wide audio bandwidth: 300 Hz–20 kHz „ SD card slot „ High SPL at small space consumption „ Joystick for playback control „ Dipole configuration and optimized acoustic design for maximum audio privacy over a wide bandwidth PACKAGE CONTENT: „ Easy-to-use fixing mechanism for reproducible positioning and measurements „ The modules are symmetrical and can be mounted on both sides of the test glasses. „ Danube 5.0 set including left and right modules „ Test glasses „ Fixation set for repeatable mounting „ 2x 1 meter cable with pin connectors NOTE: Helike UA-E3010 development board is not included in the package. Danube 5.0 UAM-P2050 Product brief Released in November 2020 USound GmbH | www.usound.com | sales@usound.com CONTENT INTRODUCTION 3 SPECIFICATIONS 4 MEASUREMENT SETUP ON KEMAR 4 MECHANICAL DIMENSIONS 5 ELECTRICAL CONNECTIONS 6 ACOUSTIC PERFORMANCE ON KEMAR 6 REVISION HISTORY Released in November 2020 2 Danube 5.0 UAM-P2050 Product brief Released in November 2020 USound GmbH | www.usound.com | sales@usound.com INTRODUCTION The Danube 5.0 audio module is an extension kit that enables fast prototyping of smart eyewear. The module consists of one MEMS tweeter and one electrodynamic woofer. It features USound’s patented dipole configuration for maximum directivity to the ear canal, high SPL, and a compact form factor. It also includes a magnetic fixture mechanism for an easy attachment. The module does not include electronics and it’s advised to be used together with the development board Helike. It requires two amplifier signals, one for the MEMS speakers and one for the woofer, which are provided by the Helike development board. The board also includes a dedicated filter set-up which can be applied to optimise the acoustic performance. Additionally, these filters can be adjusted to meet a specific target curve. The Helike UA-E3010 board supports up to four Danube 5.0 in parallel — two left, and two right modules can be connected and driven simultaneously. For more details on how to use the extension kit Danube 5.0 on the Helike development board, please refer to the Helike UA-E3010 user manual. 3 Danube 5.0 UAM-P2050 Product brief Released in November 2020 USound GmbH | www.usound.com | sales@usound.com SPECIFICATIONS Standard conditions: Module fixed on test glasses on KEMAR head. Fixture mounted 5.5 cm distance from the glasses front plane (see image below). Woofer driving: 1 VRMS Tweeter driving: 15 VP (10.6 VRMS) + 15 VDC Module on KEMAR - woofer without filters Module on KEMAR - tweeter without filters 500 Hz [dB] 82 2 kHz [dB] 87 1 kHz [dB] 88 4 kHz [dB] 101 4 kHz [dB] 111 8 kHz [dB] 94 THD @ 400 Hz [%] 11 THD @ 6.5 kHz [%] 1.8 Nominal impedance [Ω] 7 Capacitance @ 1 kHz / 15Vp [nF] 38 MEASUREMENT SETUP ON KEMAR 5,5 cm Figure 1: The fixture is placed on the temple as shown on the photo. The top of the module coincides with the top of the temple. 4 Danube 5.0 UAM-P2050 Product brief Released in November 2020 USound GmbH | www.usound.com | sales@usound.com MECHANICAL DIMENSIONS General Size (L x W x H) [mm] 40 x 13 x 8 Woofer size [mm] 15 x 8 x 2.5 Tweeter size 6 [mm] 5 6.7 x 4.7 x 1.6 4 [g] 4.1 6 5 Weight 3 3 4 1 1 2 2 F F 4 13 13 4 3 4 2 3 1 Tweeter Tweeter 1 2 E E F 4 4 13 8 8 F 40 40 13 eeter 8 8 Figure 2: Tweeter gasket Tweeter gasket Vent mesh Vent mesh Mechanical drawings: E top/down/side view Electrical Electrical connections connections Wires Wires 40 weeter gasket D D Back port Back port E 40 ent mesh asket Electrical D connections Back port h Electrical connections Front mesh Front mesh Wires C C D Back port Front port Front port (tweeter) (tweeter) Magnet Magnet Front port Front port (woofer) (woofer) C Shell1 Shell1 B B C mesh Figure Magnet and dimensions millimeters. accordance withinDIN ISO 2768 6 6 5 5 and dimensions in millimeters. Front port 4 B (woofer) 4 DIN ISO 2768 in millimeters. CONFIDENTIAL Property of USound CONFIDENTIAL Property of USound ID: REV DETAILS DATE 2020.11.10 3 Cable included INT. REF: Audio module 2020.10.06 2 Ports annotations PROJECT: DANUVE (5v0) ID: 2020.09.01 1 REV DETAILS MATERIAL: 10 3 Cable included INT. REF: Audio module PURPOSE: Illustration USound GmbH scale the drawing. Unless 5 in 2 tolerancces Ports annotations PROJECT: Kratkystrasse 2 DANUVE (5v0) e06 specified, 8020 Graz, AUSTRIA ance 01 with 1 DIN ISO 2768 MATERIAL: www.usound.com mensions in millimeters. PURPOSE: Illustration USound GmbH drawing. Unless 4 2 3 Kratkystrasse 2 d, tolerancces in 8020 Graz, AUSTRIA www.usound.com CONFIDENTIAL CONFIDENTIAL Property of Property of USound USound Magnet Front mesh Front port REV DETAILS DRW DATE DETAILS REV DRW DATE (tweeter) included 3 Cable IIR 2020.11.10 Cable included IIR 2020.10.06 2020.11.10 23 Ports annotations 3:IIR Mechanical drawings: perspective view 2020.10.06 12 Ports annotations IIR port Front 2020.09.01 IIR IIR 2020.09.01 1 (tweeter) USound GmbH Do not scale the drawing. Unless Front port Kratkystrasse 2 otherwise specified, tolerancces in B USound GmbH Do not scale the drawing. Unless (woofer) 8020 Graz, AUSTRIA accordance with DINtolerancces ISO 2768 in Kratkystrasse 2 otherwise specified, www.usound.com 8020 Graz, AUSTRIA www.usound.com 3 3 ID: ID: REF: Audio module INT. INT. REF: DANUVE Audio module PROJECT: (5v0) PROJECT: DANUVE (5v0) MATERIAL: MATERIAL:Illustration PURPOSE: PURPOSE: Illustration 2 2 Danube A5.0 UAM-P2050 Product brief Released in November 2020 SHEET 1/1 USound GmbH | www.usound.com | sales@usound.com 1 A SHEET 1/1 A A SHEET 1/1 1SHEET 1/1 1 ELECTRICAL CONNECTIONS Figure 4: The electrical connection is done with a 5-pole pin header. The middle pin is unused. With this configuration, the pin order is directly compatible with Helike UA-E3010. ACOUSTIC PERFORMANCE ON KEMAR Danube With EQ 120 SPL [dBSPL] 100 80 60 40 300 400 600 1000 2000 3000 4000 6000 10000 20000 Frequency [Hz] Note: Acoustic performance at 0dBFS with and without filters applied. 6 Danube 5.0 UAM-P2050 Product brief Released in November 2020 USound GmbH | www.usound.com | sales@usound.com RELATED DOCUMENTATION Helike UA-E3010 User manual Helike UA-E3010 Datasheet Adap UTP-2019 Datasheet COMPATIBLE PRODUCTS OVERVIEW Product name Description Helike UA-E3010 Development board for evaluating, rapid prototyping and designing audio solutions using our MEMS speaker technology. IMPORTANT NOTICE AND DISCLAIMER USound GmbH (“USound”) makes no warranties for the use of USound products, other than those expressly contained in USound’s applicable General Terms of Sale, located at www.usound.com. USound assumes no responsibility for any errors which may have crept into this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No license to patents or other intellectual property rights of USound are granted in connection with the sale of USound products, neither expressly nor implicitly. In respect of the intended use of USound products by the customer, the customer is solely responsible for observing existing patents and other intellectual property rights of third parties and for obtaining, as the case may be, the necessary licenses. For more information about USound patents visit https://www.usound.com/patents/. Important note: The use of USound products as components in medical devices and/or medical applications, including but not limited to, safety and life supporting systems, where malfunctions of such USound products might result in damage to and/or injury or death of persons is expressly prohibited, as USound products are neither destined nor qualified for use as components in such medical devices and/or medical applications. The prohibited use of USound products in such medical devices and/or medical applications is exclusively at the risk of the customer. 7 Danube 5.0 UAM-P2050 Product brief Released in November 2020 USound GmbH | www.usound.com | sales@usound.com