XE8000EV104 Semtech, XE8000EV104 Datasheet - Page 136
XE8000EV104
Manufacturer Part Number
XE8000EV104
Description
EVAL BOARD FOR XE8805AMI028LF
Manufacturer
Semtech
Type
MCUr
Specifications of XE8000EV104
Contents
Fully Assembled Evaluation Board
For Use With/related Products
XE88LC05AMI028
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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19.1 Features
19.2 General description
Figure 19-1 shows the general block diagram of the D/A peripheral. It consists of a control block that manages all
communication with the CPU and sets the configuration of the peripheral. The D/A converts the digital data in an
analog output signal. An amplifier is added that can be used to drive the large sensor currents.
19.3 Register map
The bias D/A has two registers.
Pos.
7-2
1-0
© Semtech 2006
Pos.
7-0
•
•
•
RegDabIn
DabIn(7:0)
RegDabCfg
Enable(1:0)
8 bit low frequency A/D
On-chip amplifier with 2 terminals MOS output
Current and voltage controlled applications can be implemented
As the amplifier is attacking a MOS, effective polarity of the feedback loop
depends on load and network.
XE8805A – Bias D/A block
control
registers
DabIn
Enable
rw
rw
rw
r
rw
Figure 19-1. General block diagram
reset
0
resetsystem
reset
0
00
resetsystem
Table 19-2. RegDabCfg
Table 19-1. RegDabIn
amp
19-2
function
Data to convert
function
Unused
bit 1: enables the amplifier when 1
bit 0: enables the D/A when 1
V
V
BATT
SS
MOS
DAB AOM
DAB OUT
DAB AOP
DAB R M
DAB R P
DAB AIM
DAB AIP
XE8805/05A
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