mic3003gfltr Micrel Semiconductor, mic3003gfltr Datasheet - Page 18

• Manufacturer Part Number: mic3003gfltr
• Description: Fom Management Ic With Internal Calibration
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
July 2010
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
MIC3003 is sampled in sequence. All five parameters are
sampled and the results updated within the t
given in the “Electrical Characteristics” section. In OEM
mode, the channel that is normally used to measure V
may be assigned to measure the level of the V
one of five other nodes. This provides a kind of analog
loopback for debug and test purposes. The V
OEMCFG0 control which voltage source is being
sampled. The various V
differently depending on the signal source, resulting in
different LSB values and signal ranges. See Table 5.
AUX
channels are level-shifted
CONV
Figure 1. MIC3003 Block Diagram
AUX
DDA
duration
bits in
pin or
IN
18
Figure 2. Analog-to-Digital Converter Block Diagram
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MIC3003GFL