SLOA264B April   2018  – June 2021 TAS5411-Q1 , TAS5421-Q1

 

  1.   Trademarks
  2. 1 TAS5421-Q1 and TAS5411-Q1 I2C Bus Operation
    1. 1.1 Standby Mode
    2. 1.2 Mute and Play Mode
  3. 2 TAS5421-Q1 and TAS5411-Q1 Options
    1. 2.1 Option 1
    2. 2.2 Option 2
    3. 2.3 Option 3
  4. 3Revision History

1.1 Standby Mode

In STANDBY mode, the device is designed to draw the lowest current possible for use in battery operated applications. Therefore, in STANDBY mode the device goes into complete shutdown. The TAS5421-Q1 and TAS5411-Q1 data sheets specify the following operating modes while the device is in STANDBY:

  • OUTPUT: Hi-Z, floating
  • OSCILLATOR: Stopped
  • I2C: Stopped

When the TAS5421-Q1 and TAS5411-Q1 are in STANDBY mode, the SDA pin may be pulled low due to parasitic effects if the micro-controller (MCU) communicates with other I2C devices on the bus.