Datasheet

PRODUCTPREVIEW
f
DCO
DCO
OVERSHOOT
DCO
OVERSHOOT
± 0.5% of steady state
DCO
SETTLE_RANGE
DCO
SETTLE_TUNE_LSB
DCO
SETTLE_TUNE
t
MSP432P401R, MSP432P401M
www.ti.com SLAS826 –MARCH 2015
DCO (continued)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
, T
A
MIN TYP MAX UNIT
DCO settling from worst DCO settled to within 0.5% of steady
t
DCO_SETTLE_RANG
1.62 V to 3.7 V
case DCORSELn to state frequency 5 μs
E
–40°C to 85°C
DCORSELm See Figure 5-1.
DCO settling LSB change DCO settled to within 0.5% of steady
t
DCO_SETTLE_TUNE_
1.62 V to 3.7 V
of DCOTUNE within any state frequency 2.2 μs
LSB
–40°C to 85°C
DCORSEL setting See Figure 5-1.
DCO settling worst case
DCO settled to within 0.5% of steady
DCOTUNEn to 1.62 V to 3.7 V
t
DCO_SETTLE_TUNE
state frequency 5 μs
DCOTUNEm within any –40°C to 85°C
See Figure 5-1.
DCORSEL setting
Worst case DCO frequency change 1.62 V to 3.7 V
DCO
OVERSHOOT
DCO overshoot –10% 5%
See Figure 5-1. –40°C to 85°C
DCO settled to within 0.5% of steady 1.62 V to 3.7 V
t
START
DCO startup time
(3)
5 μs
state frequency. –40°C to 85°C
(3) The maximum parasitic capacitance at the DCO External Resistance pin (DCOR) should not exceed 5pF to guarantee the specified
DCO startup time.
Figure 5-1. DCO Settling
Table 5-22. DCO Overall Tolerance
over operating free-air temperature range (unless otherwise noted)
TEMPERATURE TEMPERATURE VOLTAGE VOLTAGE DRIFT OVERALL DRIFT OVERALL
RESISTOR OPTION
CHANGE DRIFT (%) CHANGE (%) (%) ACCURACY (%)
–40°C to 85 °C ±3.125 1.62 V to 3.7 V ±0.2 ±3.325 ±3.825
Internal resistor 0°C 0 1.62 V to 3.7 V ±0.2 ±0.2 ±0.7
–40°C to 85 °C ±3.125 0 V 0 ±3.125 ±3.625
–40°C to 85 °C ±0.438 1.62 V to 3.7 V ±0.2 ±0.638 ±1.138
External resistor
0°C 0 1.62 V to 3.7 V ±0.2 ±0.2 ±0.7
with 25-ppm TCR
–40°C to 85 °C ±0.438 0 V 0 ±0.438 ±0.938
Copyright © 2015, Texas Instruments Incorporated Specifications 35
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