JAJSFT0B November 2017 – November 2019 TAS5720A-Q1
PRODUCTION DATA.
Each device on the I²C bus has a unique address that allows it to appropriately transmit and receive data to and from the I²C master controller. As part of the I²C protocol, the I²C master broadcast an 8-bit word on the bus that contains a 7-bit device address in the upper 7 bits and a read or write bit for the LSB. The TAS5720A-Q1 has a configurable I²C address. The SPK_SLEEP/ADR can be used to set the device address of the TAS5720A-Q1. In Software Control mode, the seven bit I²C device address is configured as “110110x[R/W]”, where “x” corresponds to the state of the SPK_SLEEP/ADR pin at first power up sequence of the device. Upon application of the power supplies, the device latches in the value of the SPK_SLEEP/ADR pin for use in determining the I²C address of the device. If the SPK_SLEEP/ADR pin is tied LOW at power up (that is connected to the system ground), the device address will be set to 1101100[R/W]. If it is pulled HIGH (that is connected to the DVDD supply), the address will be set to 1101101[R/W] at power up.