Update README.md

rejunity · Nov 16, 2023 · 9493739 · 9493739
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@@ -52,6 +52,46 @@ SAA1099  (Philips)
 * by van Heusden https://vanheusden.com/electronics/SAA1099-clock/
 * http://www.etheroneph.com/machinery/529-zvukogenerator-saa1099.html
 
+### PDM
+
+```
+AMPLITUDE PDM SEQUENCES
+ 0: 0000000000000000000000000000000000000000000000000000000000000000 = 0
+ 1: 0000000011110000000000000000000000000000000000000000000000000000 = 4/64
+ 2: 0000000000001111111100000000000000000000000000000000000000000000 = 8/64
+ 3: 0000000011111111111100000000000000000000000000000000000000000000 = 12/64
+ 4: 0000000000000000000000000000000000001111111111111111000000000000 = 16/64
+ 5: 0000000011110000000000000000000000001111111111111111000000000000 = 20/64
+ 6: 0000000000001111111100000000000000001111111111111111000000000000 = 24/64
+ 7: 0000000011111111111100000000000000001111111111111111000000000000 = 28/64
+ 8: 1111000000000000000011111111111111110000000000000000111111111111 = 32/64
+ 9: 1111000011110000000011111111111111110000000000000000111111111111 = 36/64
+10: 1111000000001111111111111111111111110000000000000000111111111111 = 40/64
+11: 1111000011111111111111111111111111110000000000000000111111111111 = 44/64
+12: 1111000000000000000011111111111111111111111111111111111111111111 = 48/64
+13: 1111000011110000000011111111111111111111111111111111111111111111 = 52/64
+14: 1111000000001111111111111111111111111111111111111111111111111111 = 56/64
+15: 1111000011111111111111111111111111111111111111111111111111111111 = 60/64
+
+ENVELOPE PDM SEQUENCES
+ 0: 0000000000000000000000000000000000000000000000000000000000000000 = 0/64
+ 1: 0000000000001000000000000000100000000000000010000000000000001000 = 4/64
+ 2: 0000010000000100000001000000010000000100000001000000010000000100 = 8/64
+ 3: 0000010000001100000001000000110000000100000011000000010000001100 = 12/64
+ 4: 0011000000110000001100000011000000110000001100000011000000110000 = 16/64
+ 5: 0011000000111000001100000011100000110000001110000011000000111000 = 20/64
+ 6: 0011010000110100001101000011010000110100001101000011010000110100 = 24/64
+ 7: 0011010000111100001101000011110000110100001111000011010000111100 = 28/64
+ 8: 1100001111000011110000111100001111000011110000111100001111000011 = 32/64
+ 9: 1100001111001011110000111100101111000011110010111100001111001011 = 36/64
+10: 1100011111000111110001111100011111000111110001111100011111000111 = 40/64
+11: 1100011111001111110001111100111111000111110011111100011111001111 = 44/64
+12: 1111001111110011111100111111001111110011111100111111001111110011 = 48/64
+13: 1111001111111011111100111111101111110011111110111111001111111011 = 52/64
+14: 1111011111110111111101111111011111110111111101111111011111110111 = 56/64
+15: 1111011111111111111101111111111111110111111111111111011111111111 = 60/64
+```
+
 ### Noise
 ```
 SAA1099P noise generator as documented by Jepael