i.MX233 Applications Processor NXP Semiconductors i.MX233 Applications Processor, based on the ARM926EJ-S™, can run at speeds up to 454MHz. The power management unit (PMU) integrates a DC-DC switching converter and multiple linear regulators to provide power sequencing for the device itself and drive I/O peripherals, such as memories and SD cards as well as providing battery charging capability for Li-Ion batteries. The i.MX233 also integrates mixed signal analog audio with a 1.5W Mono speaker amplifier, a stereo headphone DAC with 99dB Signal-to-Noise ratio, and stereo ADC with 85dB Signal-to-Noise ratio with integrated amplifiers.