XE8000EV104 Semtech, XE8000EV104 Datasheet - Page 124
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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18.3
All registers are reset with the system reset.
The contents of the registers RegDasInLsb and RegDasInMsb are transferred to the D/A converter when after
data have been written into RegDasInMsb. Therefore, in order to maintain the synchronisation between the LSB
and MSB, the LSB should always be written before the MSB.
Pos.
7-0
Pos.
Pos.
7:2
1
0
© Semtech 2006
Pos.
7-0
7:6
5:3
2:1
0
RegDasInLsb
DasInLsb(7:0)
RegDasInMsb
DasInMsb(7:0)
RegDasCfg0
NsOrder(1:0)
CodeLmax(2:0)
Enable(1:0)
Fin
RegDasCfg1
-
BW
INV
Registers Map
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
reset
0
resetsystem
reset
0
resetsystem
reset
00
resetsystem
000
resetsystem
00
resetsystem
0
resetsystem
reset
000000
0
resetsystem
0
resetsystem
Table 18-2. RegDasInMsb
Table 18-1. RegDasInLsb
Table 18-3. RegDasCfg0
Table 18-4. RegDasCfg1
18-3
function
Data to convert LSB
function
Data to convert MSB
function
Noise Shaper order
00 : order 0
01 : order 1
1x : order 2
PWM pulse resolution :
000 : 4 bits
001 : 5 bits
010 : 6 bits
011 : 7 bits
100 : 8 bits
101 : 9 bits
110 : 10 bits
111 : 11 bits
Bit 0 : enables the D/A
Bit 1 : enables the amplifier
Input frequency of modulator as a fraction of
oscillator frequency
0 : 1.f
function
Unused
Amplifier bandwidth
0 : small bandwidth
1 : large bandwidth
Inverts the PWM output
0 : normal, active high
1 : inverted, active low
RC
, 1 : ½.f
RC
XE8805/05A
www.semtech.com
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