TDA7501TR STMICROELECTRONICS [STMicroelectronics], TDA7501TR Datasheet - Page 16

• Manufacturer Part Number: TDA7501TR
• Description: Line driver for digital car radio Signal processor (DSPLD)
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Digital interface
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Digital interface
The TDA7501 digital interface offers two different protocols: SPI and I2C.
To select I2C-mode the SEL-pin has to beconnected to VDD. If the voltage at the SEL-pin is
more than about 1V below the VDD voltage the interface switches to SPI-mode.
In both cases the interface is able to work with a 3.3V microprocessor as well as with a 5V
microprocessor. For details of both protocols refer to the programming section.
TDA7501