MIC3002_10 Datasheet, PDF (18/65 Pages) Micrel Semiconductor – FOM Management IC with Internal Calibration

Micrel, Inc.
Block Diagram
MIC3002
Figure 1. MIC3002 Block Diagram
Analog-to-Digital Converter/Signal Monitoring
A block diagram of the monitoring circuit is shown below.
Each of the five analog parameters monitored by the
MIC3002 are sampled in sequence. All five parameters
are sampled and the results updated within the t_CONV
internal given in the “Electrical Characteristics” section. In
OEM, Mode, the channel that is normally used to
measure V_IN may be assigned to measure the level of the
V_DDA pin or one of five other nodes. This provides a kind
of analog loopback for debug and test purposes. The
V_AUX bits in OEMCFG0 control which voltage source is
being sampled. The various V_AUX channels are level-
shifted differently depending on the signal source,
resulting in different LSB values and signal ranges. See
Table 5.
Figure 2. Analog-to-Digital Converter Block Diagram
July 2007
18
M9999-073107-B
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