pinout.vvzero.com/src/en/overlay/iface-pcm.md

<!--
---
class: interface
type: pinout
name: PCM
description: Raspberry Pi PCM pins
pin:
  'bcm18':
    name: CLK
  'bcm19':
    name: FS
  'bcm20':
    name: DIN
  'bcm21':
    name: DOUT
-->
#PCM - Pulse-code Modulation

###PCM (Pulse-code Modulation) is a digital representation of sampled analog. On the Raspberry Pi it's a form of digital audio output which can be understood by a DAC for high quality sound.
New interface overlays 2016-03-01 00:51:38 +08:00			`<!--`
			`---`
			`class: interface`
			`type: pinout`
			`name: PCM`
			`description: Raspberry Pi PCM pins`
			`pin:`
Corrected to bcm, added to settings 2016-03-01 01:06:30 +08:00			`'bcm18':`
New interface overlays 2016-03-01 00:51:38 +08:00			`name: CLK`
Corrected to bcm, added to settings 2016-03-01 01:06:30 +08:00			`'bcm19':`
New interface overlays 2016-03-01 00:51:38 +08:00			`name: FS`
Corrected to bcm, added to settings 2016-03-01 01:06:30 +08:00			`'bcm20':`
New interface overlays 2016-03-01 00:51:38 +08:00			`name: DIN`
Corrected to bcm, added to settings 2016-03-01 01:06:30 +08:00			`'bcm21':`
New interface overlays 2016-03-01 00:51:38 +08:00			`name: DOUT`
			`-->`
			`#PCM - Pulse-code Modulation`

			`###PCM (Pulse-code Modulation) is a digital representation of sampled analog. On the Raspberry Pi it's a form of digital audio output which can be understood by a DAC for high quality sound.`