diff --git a/drivers/include/pca9685.h b/drivers/include/pca9685.h
index b13230159a..646fd2064b 100644
--- a/drivers/include/pca9685.h
+++ b/drivers/include/pca9685.h
@@ -130,7 +130,7 @@ extern "C"
 #define PCA9685_RESOLUTION      (1 << 12)
 
 /**
- * @brief   Internal PCA9685 oscilator frequency is 25 MHz
+ * @brief   Internal PCA9685 oscillator frequency is 25 MHz
  */
 #define PCA9685_OSC_FREQ        (25000000)
 
diff --git a/drivers/pca9685/pca9685.c b/drivers/pca9685/pca9685.c
index 9030062f39..041f3648eb 100644
--- a/drivers/pca9685/pca9685.c
+++ b/drivers/pca9685/pca9685.c
@@ -212,14 +212,14 @@ void pca9685_pwm_poweron(pca9685_t *dev)
         /* clear the SLEEP bit */
         byte &= ~PCA9685_MODE1_SLEEP;
         EXEC(_write(dev, PCA9685_REG_MODE1, &byte, 1));
-        /* allow 500 us for oscilator to stabilize */
+        /* allow 500 us for oscillator to stabilize */
         xtimer_usleep(500);
         /* clear the RESTART bit to start all PWM channels*/
         EXEC(_update(dev, PCA9685_REG_MODE1, PCA9685_MODE1_RESTART, 1));
     }
     else {
         EXEC(_update(dev, PCA9685_REG_MODE1, PCA9685_MODE1_SLEEP, 0));
-        /* allow 500 us for oscilator to stabilize */
+        /* allow 500 us for oscillator to stabilize */
         xtimer_usleep(500);
         /* clear the RESTART bit to start all PWM channels*/
         EXEC(_update(dev, PCA9685_REG_MODE1, PCA9685_MODE1_RESTART, 1));