Parameters of Loda 1522s chip:
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Built-in ARM M4 processor core, the highest operating frequency of 208MHz, built-in DSP operating frequency of up to 416MHz, with USB, I2C, UART, SPI, PWM, AUXADC, I2S a variety of interfaces, can be connected to a variety of peripherals. Chip built-in highly integrated power management unit, integrated switching buck and voltage regulator circuit. Built-in lithium battery charger with overcurrent and overheat protection. The AB1565M and AB1565AM have a built-in 8MB flash memory. The chip supports 24\/192 audio, supports hardware active noise reduction, supports feedforward noise reduction and hybrid noise reduction. Support for noise suppression and echo cancellation, built-in multi-band programmable EQ and dynamic range control.
Parameter function : Boost\/drop voltage
Output configuration : negative
Topology : Charging pump
Output type : Adjustable type
Output number : 1
Voltage - input (min) : 3V
Voltage - input (Max) : 6V
Voltage - output (Max) : -12V
Current - Output : 120mA
Frequency - switch : 250kHz