Loudspeaker amplifier IC targets digital instrument cluster: Page 2 of 2

April 24, 2020 //By Christoph Hammerschmidt
High performance loudspeaker amplifier ICs for digital instrument clusters
Chip manufacturer Rohm announces the BD783xxEFJ-M series Class AB mono loudspeaker amplifier with 2.8 W output power. The AEC-Q100 qualified ICs offer voltage gains between +6dB (BD78310EFJ-M) and +26dB. They operate in the temperature range from -40 °C to +105 °C; target applications are instrument clusters in autonomous vehicles and ADAS.

High reliability in automotive applications

The BD783xxEFJ-M series is qualified according to AEC-Q100 and supports a maximum operating temperature of 105°C. The use of a power package reduces heat generation at high volumes. This enables stable audio output even under difficult conditions without compromising functionality. In addition to overcurrent protection, a thermal shutdown and an undervoltage lockout circuit are integrated. These prevent damage caused by unusual heat generation and unexpected pops/cracking noises in the event of battery failure.

Rohm's BD783xxEFJ-M series loudspeaker operational amplifiers are installed on Cypress Semiconductor's Traveo-S6J3360 MCU family evaluation board for automotive applications. This allows easy evaluation under conditions similar to real-world cases.

More information: https://www.cypress.com/products/traveo-s6j3360s6j3370-simple-graphics-arm-cortex-r5-mcu


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