10.2.1.1 Design Requirements
Use the following requirements for this design:
- This head-unit example is focused on the smallest solution size for 4 × 50 W output power into 2 Ω with a battery supply of 14.4 V.
- The switching frequency is set above the AM-band with 44 times the input sample rate of 48 kHz which results in a frequency of 2.11 MHz.
- The selection of a 2.11 MHz switch frequency enables the use of a small output inductor value of 3.3 µH which leads to a very small solution size.