12 bit duty cycle resolution at 25 KHz PWM frequencyhttps://devzone.nordicsemi.com/f/nordic-q-a/18322/12-bit-duty-cycle-resolution-at-25-khz-pwm-frequencyHi, Does anyone know if there is a way to achieve 12 bit duty cycle resolution at 25 KHz PWM frequency for 5 channels (individual duty cycle for each channel) using the NRF52823 ?en-USTelligent Community 13Mon, 12 Dec 2016 10:59:43 GMTRE: 12 bit duty cycle resolution at 25 KHz PWM frequencyhttps://devzone.nordicsemi.com/thread/70747?ContentTypeID=1Mon, 12 Dec 2016 10:59:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b8cd2f48-582f-43d1-a23f-f681fa392928Ole Bauck<p>Hi,</p> <p>25 KHz PWM frequency with 12 bit duty cycle would require a base PWM clock of:</p> <pre><code>25 KHz * 2^12 ~= 100MHz </code></pre> <p>The maximum base clock for the PWM (and most of the peripherals) on the nRF52 is 16 MHz, see <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/pwm.html?cp=2_2_0_46_4_7#register.PRESCALER">here</a>. The maximum duty cycle resolution with 25 KHz PWM and 16 MHz base clock is:</p> <pre><code>16MHz / 25 KHz = 640 (a bit above 9 bits) </code></pre> <p>Ole</p><div style="clear:both;"></div>