Power Supply
3.1 Power Supply
The TAS5010−5112F2EVM can be powered from one or two external power supplies.
Note:
The length of the power supply cable must be minimized. Increasing the length of the PSU cable is equal to increasing the distortion for the amplifier at high output levels and low frequencies.
3.1.1Power the EVM by One Power Supply
A single power supply can be connected to the TAS5010−5112F2EVM board. Short VHBR and V+ at the power cable (red and white plugs).
Voltage for the connected power supply is not allowed to be below 15 V. The maximum supply voltage depends of the speaker load resistance. Check the recommended maximum supply voltage in the TAS5112ADFD data sheet (SLES094).
Table 3−1. Maximum Supply Voltage (Single Supply)
RLOAD = 6 Ω
Supply voltage (VHBR and V+) | 29.5 V |
3.1.2Power the EVM With Two Power Supplies
When two supplies power the TAS5010−5112F2EVM, it is possible to adjust the output power with the level of the voltage VHBR (pin 1 at J640). The minimum VHBR voltage is 0 V. The maximum voltage depends of the load resistance. Check the recommended maximum supply voltage in the TAS5112ADFD data sheet (SLES094).
Table 3−2. Maximum H-bridge Voltage vs Load Impedance
| RLOAD = 6 Ω |
Maximum VHBR voltage | 29.5 V |
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V+ voltage | 15 V – 20 V |
Figure 3−1. Recommended Power-Up and Power-Down Sequence
V+
VHBR
>1 ms |
| >1 ms |
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