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| Audio ICs Bus interface for car audio BA8270F The BA8270F is a bus interface IC (master side) developed for car audio applications. When used with the BA8272F (slave side), it is possible to construct a communication system for the deck and components such as power amplifiers, CD and MD changers, tuners and TVs using BUS ON, DATA, CLOCK and RESET signals. FApplications Car audio systems FFeatures 1) Allows construction of a communication system with BUS ON, DATA, CLOCK and RESET signals when used with the BA8272F (slave side). 2) Ideal for car audio systems. FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions (Ta = 25_C) 705 Audio ICs FBlock diagram BA8270F 706 Audio ICs FElectrical characteristics (unless otherwise noted, Ta = 25_C and VCC = 5.5V) BA8270F 707 Audio ICs FMeasurement circuit BA8270F 708 Audio ICs FMeasurement circuit switch operation table BA8270F 709 Audio ICs FApplication example BA8270F FOperation notes (1) We guarantee the application circuit design, but recommend that you thoroughly check its characteristics in actual use. If you change any of the external component values, check both the static and transient characteristics of the circuit, and allow sufficient margin in your selections to take into account variations in the components and ICs. FExternal dimensions (Units: mm) Note that Rohm has not fully investigated patent rights regarding this product. (2) Based on the EIAJ static electric destruction voltage measurement (C = 200pF and R = 0), the withstanding voltage of pins 9 and 11 has been determined to be 200V or less. Take due care. 710 |
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