CD DSP: Difference between revisions
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== Overview == | == Overview == | ||
Signal processor of the CD-electronics portion of the PlayStation. | |||
Has 32K of internal RAM. | |||
CXD2516Q and CXD2510Q additionally require an external servo IC (CXA1782BR, which also includes an RF-amp). CXD2545Q and newer have an internal servo controller and only need an external RF-amp (CXA2550N up to PU-20 or CXA2575N from PU-22 and later). For driving the sled motor, spindle motor, tracking coils and focus coils, each PlayStation also has a driver IC for this purpose with its signal inputs connected to the DSP. | |||
== Revisions == | == Revisions == | ||
Revision as of 22:15, 17 October 2021
Overview
Signal processor of the CD-electronics portion of the PlayStation.
Has 32K of internal RAM.
CXD2516Q and CXD2510Q additionally require an external servo IC (CXA1782BR, which also includes an RF-amp). CXD2545Q and newer have an internal servo controller and only need an external RF-amp (CXA2550N up to PU-20 or CXA2575N from PU-22 and later). For driving the sled motor, spindle motor, tracking coils and focus coils, each PlayStation also has a driver IC for this purpose with its signal inputs connected to the DSP.
Revisions
Dedicated DSP
- CXD2516Q (PU-7)
- CXD2510Q (PU-8, PU-16)
- CXD2545Q (PU-18)
DSP + CD-controller + CD-controller's RAM
- CXD1817R (PU-20)
DSP + CD-controller + CD-controller's RAM + SPU + audio-DAC
- CXD2938Q (PU-22, PU-23, PM-41 up to PM-41-61)
DSP + CD-controller + CD-controller's RAM + SPU + SPU's RAM + audio-DAC
- CXD2941R (PM-41-71, PM-41-82)