Differences

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--- mos6581 [2011/10/01 13:08] – wadmin
+++ mos6581 [2011/10/03 20:52] – [Power Supply] wadmin
@@ Line 301: / Line 301: @@
 Same as OSC 3, but this register allows the microprocessor to read the output of the Voice 3 Envelope Generator. This output can be added to the Filler Frequency to produce harmonic envelopes, WAH WAH, and similar effects. “Phaser” sounds can be created by adding this output to the frequency control registers of an oscillator. The Voice 3 Envelope Generator must be gated in order to produce any output from this register. The OSC 3 register, however, always reflects the changing output of the oscillator and is not affected in any way by the Envelope Generator.
+===== SID Pinout and Connection =====
+Pins decription can be found herebelow. Consider jumping to next section for maximum ratings.
+==== Power Supply ====
+SID power consumption during normal operation is 600mW.
+=== VCC - Pin 25 ===
+This pin shall be powered by a 5V DC coupled power supply.
+About 70mA is drawn from VCC during normal operation. Coupling capacitor of at least 1uf is recommended for proper operation.
+=== VDD - Pin 28 ===
+This pin shall be connected to either 9V or 12V DC coupled power supply, according to your SID chip version:
+^  SID Model  ^  VDD Voltage  ^  Current   ^
+|  6581  |  12V  |  25mA  |
+|  6582  |  9V  |  :::  |
+|  8580  |  :::  |  :::  |
+Coupling capacitor of at least 100nf is recommended.