XE8000EV101 Semtech, XE8000EV101 Datasheet - Page 45

• Manufacturer Part Number: XE8000EV101
• Description: EVAL BOARD FOR XE8801AMI027LF
• Manufacturer: Semtech
• Type: MCUr

Specifications of XE8000EV101

• Contents: Fully Assembled Evaluation Board
• For Use With/related Products: XE88LC01AMI027
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

with f
from the value predicted by the equation.
7.5.1.3
Note 1: this is the frequency tolerance when all trimming codes are 0.
Note 2: frequency shift as a function of VBAT with normal regulator function.
Note 3: frequency shift as a function of VBAT while the regulator is short-circuited to VBAT.
© Semtech 2005
Rcmin
f
RC
the RC oscillator frequency if the registers are all 0. At higher frequencies, the frequency may deviate
1E+08
1E+07
1E+06
1E+05
1E+04
symbol
f
RcFreqFine
RC_su
PSRR @ DC
∆f/∆T
=f
RC oscillator specifications
RCmin
Rcmin
⋅(1+9⋅RcFreqRange)⋅(1+RcFreqCoarse)⋅(1.014)
RcFreqFine(5:0)
0000
description
Lowest RC frequency
fine tuning step
startup time
Supply voltage
dependence
Temperature
dependence
Figure 7-2. RC oscillator nominal frequency tuning.
RcFreqRange='1'
RcFreqRange='0'
Table 7-7. RC oscillator specifications
0001
min
40
7-5
0011
TBD
TBD
typ
1.4
0.1
80
30
3
RcFreqFine
max
120
2.0
50
5
0111
unit
kHz
%
us
us
%/V
%/V
%/°C
XE8801A – SX8801R
RcFreqCoarse(3:0)
Comments
Note 1
BiasRc=0
BiasRc=1
Note 2
Note 3
RcFreqFine(5:0)
1111
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