fix typo #2 in doc

Author: dhalbert

shared-bindings/audiobusio/PDMIn.c

@@ -42,7 +42,7 @@
 //|
 //| PDMIn can be used to record an input audio signal on a given set of pins.
 //|
-//| .. class:: PDMIn(clock_pin, data_pin, \*, frequency=16000, bit_depth=8, mono=True, oversample=64, startup_delay=0.1)
+//| .. class:: PDMIn(clock_pin, data_pin, \*, frequency=16000, bit_depth=8, mono=True, oversample=64, startup_delay=0.11)
 //|
 //|   Create a PDMIn object associated with the given pins. This allows you to
 //|   record audio signals from the given pins. Individual ports may put further