In a minimal setup, the RC filter for VCC can be eliminated (R1, C8). Furthermore, the sense resistors can be eliminated by replacing them with a tiny reference resistor (Rref). The peak coil current is adjusted by Rref to 3000 times the current flowing into AIN_IREF pin (calculate with about 4.8 V at Rref). In this configuration, be careful to first set the device to internal current sensing before enabling the motor (flag in GCONF register).