3 switched mode power supply – Cirrus Logic CRD44800 User Manual

Page 4

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CRD44800

4

In the Remote mode, the DB-9 connector (J14, labelled RS-232) is connected to a host PC.
All aspects of the CS44800 may then be evaluated using the supplied software.

1.3

Switched Mode Power Supply

The SMPS used for the CRD44800 is a 155W OEM supply. The supply provides +45V for
the TDA8939 PWM back ends, and +5V to power all the signal level circuitry. The SMPS is
fully over-current and over-temperature protected.

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