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3.5.1 MODULATION SCHEMES
Using The FAULT PIN As An Error Indicator:
The A_SEL_FAULTZ pin is the I
2
C device address select by default. To re-define this pin as an output,
write '1' to bit D1 of reg 0X05. Once re-programmed as output, this pin indicates a fault condition. Output
will go low for Overcurrent (OC) or undervoltage (UVP) error or overtemperature error (OTE) or
overvoltage error
Common Configurations:
1. 2 × BTL BD Mode
2. 2 × BTL AD Mode
Note:
AD: AD Modulation-Outputs are 180° out of phase
BD: BD Modulation
BTL: Bridge-Tied Load
3.5.1.1 2 X BTL BD (BD mode)
1. Set up the hardware.
2. Select the Input MUX from GDE. In the Properties window, select BD Mode.
3. GDE: Target > Connect.
4. Finally uncheck the shutdown box to bring the device out of Shutdown mode, and adjust the Master
Volume as desired.
3.5.1.2 2 X BTL AD (Default: AD mode)
1. Set up the hardware.
2. Select the Input MUX from GDE. In the Properties window, select AD Mode.
3. GDE: Target > Connect.
4. Finally uncheck the shutdown box to bring the device out of Shutdown mode, and adjust the Master
Volume as desired.
12
TAS5727 25W Digital Input Amplifier—with EQ and 2-Band DRC SLOU299–December 2010
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