EZAIRO 7150 SL HYBRID Wireless-Enabled Audio Processor for Digital Hearing Aids Introduction www.onsemi.com EZAIRO 7150 SL is an openprogrammable DSPbased hybrid specifically designed for use in wirelessly connected, highperformance hearing aids and hearing implant devices. The Ezairo 7150 SL hybrid includes the Ezairo 7100 SystemonChip (SoC) with its highprecision quadcore architecture that delivers 375 MIPS, without sacrificing power consumption. The highlyintegrated Ezairo 7100 includes an optimized, SIP49 dualHarvard CFX Digital Signal Processor (DSP) core and HEAR EZAIRO Configurable Accelerator signal processing engine. It also features an CASE 127DQ Arm Cortex M3 Processor Subsystem that supports various types of protocols for wireless communication. This block combines an openprogrammable controller with hardware accelerators for audio MARKING DIAGRAM coding and error correction support. Ezairo 7100 also includes a programmable Filter Engine that enables time domain filtering and supports an ultralowdelay audio E7150102 XXXXXX path. When combined with nonvolatile memory and wireless transceivers, Ezairo 7100 forms a complete hardware platform. The Ezairo 7150 SL hybrid includes the nRF51822 wireless (Top View) transceiver from Nordic Semiconductor. The nRF51822 is a powerful, E7150102 = Specific Device Code highly flexible multiprotocol SoC ideally suited for Bluetooth Low XXXXXX = Work Order Number Energy (BLE) and 2.4 GHz ultralowpower wireless applications. Ezairo 7150 SL also contains 2 Mb EEPROM storage and the necessary passive components to directly interface with the ORDERING INFORMATION transducers required in a hearing aid. Device Package Shipping E7150102A49AG SIP49 250 / Tape & (PbFree) Reel For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. Semiconductor Components Industries, LLC, 2017 1 Publication Order Number: December, 2017 Rev. 5 E7150/DEZAIRO 7150 SL HYBRID Key Features Programmable Flexibility: the openprogrammable Ultralow Power Consumption: <0.7 mA 10.24 DSPbased system can be customized to the specific MHz system clock (executing a tight MACloop in the signal processing needs of manufacturers. Algorithms CFX DSP core plus a typical hearing aid filterbank on and features can be modified or completely new the HEAR Configurable Accelerator). concepts implemented without having to modify the High Output Level: output levels of ~139 dB SPL chip. possible with low impedance receiver (measured using Fully Integrated Hybrid: includes the Ezairo 7100 IEC 711 coupler). SoC, nRF51822 radio IC, 2 Mb EEPROM storage, and Diverse Memory Architecture: a total of 40 kwords of the necessary passive components to directly interface program memory and 44 kwords of data memory, with the transducers required in a hearing aid. shared between the four cores included on the Ezairo Quadcore Architecture: includes a CFX DSP, a 7100 chip. HEAR Configurable Accelerator, an ARM CortexM3 Data Security: sensitive program data can be Processor Subsystem, and a programmable Filter encrypted for storage in EEPROM to prevent Engine. The system also includes an efficient unauthorized parties from gaining access to proprietary Input/Output Controller (IOC), system memories, input algorithm intellectual property. and output stages, along with a full complement of Signal Detection Unit: ultralowpower detection peripherals and interfaces. system for signals on any analog inputs. CFX DSP: a highly cycleefficient, programmable High Speed Communication Interface: fast core that uses a 24bit fixedpoint, dualMAC, 2 I Cbased interface for quick download, debugging and dualHarvard architecture. general communication. HEAR Configurable Accelerator: a highly optimized Highly Configurable Interfaces: two PCM interfaces, signal processing engine designed to perform common 2 two I C interfaces, two SPI interfaces, a UART signal processing operations and complex standard interface as well as multiple GPIOs can be used to filterbanks. stream configuration, control or signal data into and out ARM CortexM3 Processor Subsystem: a complete of the Ezairo 7150 SL hybrid. subsystem that supports efficient data transfer to and Onchip PLL: support for communication from the wireless transceiver or multiple transceivers. synchronization with wireless transceiver. The subsystem includes hardwired CODECS (G.722, Glueless MMI: link to various analog and digital user CVSD) and Error Correction support (ReedSolomon, interfaces such as analog or digital volume control Hamming), as well as a fully programmable ARM potentiometers, push buttons for program selection and CortexM3 processor and dedicated interfaces. microphone/telecoil switching. Programmable Filter Engine: a filtering system that Fitting Support: support for Microcard, HIPRO 2, allows applying a various range of pre or post HIPRO USB, QuickCom, and NOAHlink , including processing filtering, such as IIR, FIR and biquad filters. NOAHlinks audio streaming feature. Configurable System Clock Speeds: 1.28 MHz, 1.92 Development Tools: The Ezairo Preconfigured Suite MHz, 2.56 MHz, 3.84 MHz, 5.12 MHz, 6.4 MHz, 7.68 provides a software application to finetune and MHz, 8.96 MHz, 9.60 MHz, 10.24 Mhz (default clock customize the firmware bundle preloaded on Ezairo calibration), 12.80MHz and 15.36MHz to optimize the 7150 SL. A crossplatform Software Development Kit computing performance versus power consumption (SDK) to develop fitting software and wireless ratio. The calibration entires for these 12 clock speeds applications is also provided. To program the Ezairo are stored in the manufacturing area of the EEPROM. 7150 SL with your own firmware, the Ezairo 7100 Ultralow Delay: programmable Filter Engine Evaluation and Development Kit (EDK) includes supports an ultralowdelay audio path of 0.044 ms (44 optimized hardware, programming interface, and a s) for superior performance of features such as comprehensive Integrated Development Environment occlusion management. (IDE). Ultrahigh Fidelity: 85 dB system dynamic range with These Devices are PbFree, Halogen Free/BFR Free up to 110 dB input signal dynamic range, and are RoHS Compliant. exceptionallylow system noise and low group delay. www.onsemi.com 2