XE8805AMI028LF Semtech, XE8805AMI028LF Datasheet - Page 128
XE8805AMI028LF
Manufacturer Part Number
XE8805AMI028LF
Description
IC DAS 16BIT FLASH 8K MTP 64LQFP
Manufacturer
Semtech
Datasheet
1.XE8805AMI028LF.pdf
(156 pages)
Specifications of XE8805AMI028LF
Applications
Sensing Machine
Core Processor
RISC
Program Memory Type
FLASH (22 kB)
Controller Series
XE8000
Ram Size
512 x 8
Interface
UART, USRT
Number Of I /o
24
Voltage - Supply
2.4 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
64-LQFP
Supply Voltage Range
2.4V To 5.5V
Operating Temperature Range
-40°C To +85°C
Digital Ic Case Style
LQFP
No. Of Pins
64
For Use With
XE8000MP - PROG BOARD AND PROSTART2 CARD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
XE8805AMI028LF
Manufacturer:
SEMTECH/美国升特
Quantity:
20 000
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The output range of the D/A is for code 0h0000 is VSS and for code 0hFFFF is (VBAT-VSS)(2
18.5 Amplifier
The amplifier can be used to implement the low pass filter and/or a 4-20mA loop. The amplifier is enabled using the
bit Enable(1)=1. The amplifier has two different modes selected by the bit BW: a low frequency mode (BW=0) that
allows driving a high capacitive load and a high frequency mode (BW=1).
The first mode is particularly adapted when a voltage output is used. The second mode is more adapted for a 4-
20mA loop since loads are small and higher bandwidth is required to reject current consumption changes in the
loop.
Table 18-8 shows the specification of the amplifier.
Note that the amplifier can not be used to generate signals that are larger than the supply voltages VBAT and VSS
since the amplifier inputs and outputs are clamped to these voltages. The amplifier inputs and outputs should stay
within the input and output ranges specified below.
© Semtech 2006
Table 18-7. Low pass cut-off frequency as a function of the selected MPW modulation and required resolution for a
NsOrder=2, f
Resolution
(bit)
RC
10
11
12
13
14
15
16
8
9
=2MHz, Fin=0, LpOrder=2
PWM modulation m
5638.4
3986.9
2819.2
1993.5
1409.6
996.7
704.8
498.4
352.4
4
3906.3
2762.1
1953.1
1381.1
976.6
690.5
488.3
345.3
244.1
5
second order noise shaper.
1953.1
1381.1
976.6
690.5
488.3
345.3
244.1
172.6
122.1
6
18-7
976.6
690.5
488.3
345.3
244.1
172.6
122.1
86.3
61.0
7
488.3
345.3
244.1
172.6
122.1
86.3
61.0
43.2
30.5
8
244.1
172.6
122.1
86.3
61.0
43.2
30.5
21.6
15.3
9
122.1
86.3
61.0
43.2
30.5
21.6
15.3
10.8
7.6
10
m
XE8805/05A
-1)/2
m
www.semtech.com
.
61.0
43.2
30.5
21.6
15.3
10.8
7.6
5.4
3.8
11
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