Datasheet

  
  
SLAS491A − AUGUST 2005 − REVISED OCTOBER 2005
30
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
calibrated DCO frequencies − tolerance over supply voltage V
CC
PARAMETER TEST CONDITIONS T
A
VCC MIN TYP MAX UNIT
1 MHz tolerance over V
CC
25°C 1.8 V − 3.6 V −2.5 ±2 +2.5 %
8 MHz tolerance over V
CC
25°C 1.8 V − 3.6 V −2.5 ±2 +2.5 %
12 MHz tolerance over V
CC
25°C 2.2 V − 3.6 V −2.5 ±2 +2.5 %
16 MHz tolerance over V
CC
25°C 3.0 V − 3.6 V −3 ±2 +3 %
f
CAL(1MHz)
1MHz calibration value
BCSCTL1= CALBC1_1MHz;
DCOCTL = CALDCO_1MHz
Gating time: 5ms
25°C 1.8 V − 3.6 V 0.970 1 1.030 MHz
f
CAL(8MHz)
8MHz calibration value
BCSCTL1= CALBC1_8MHz;
DCOCTL = CALDCO_8MHz
Gating time: 5ms
25°C 1.8 V − 3.6 V 7.760 8 8.240 MHz
f
CAL(12MHz)
12MHz calibration value
BCSCTL1= CALBC1_12MHz;
DCOCTL = CALDCO_12MHz
Gating time: 5ms
25°C 2.2 V − 3.6 V 11.64 12 12.36 MHz
f
CAL(16MHz)
16MHz calibration value
BCSCTL1= CALBC1_16MHz;
DCOCTL = CALDCO_16MHz
Gating time: 2ms
25°C 3.0 V − 3.6 V 15.00 16 16.48 MHz
calibrated DCO frequencies − overall tolerance
PARAMETER TEST CONDITIONS T
A
VCC MIN TYP MAX UNIT
1 MHz tolerance overall −40°C − +85°C 1.8 V − 3.6 V −5 ±2 +5 %
8 MHz tolerance overall −40°C − +85°C 1.8 V − 3.6 V −5 ±2 +5 %
12 MHz tolerance overall −40°C − +85°C 2.2 V − 3.6 V −5 ±2 +5 %
16 MHz tolerance overall −40°C − +85°C 3.0 V − 3.6 V −6 ±3 +6 %
f
CAL(1MHz)
1MHz calibration value
BCSCTL1= CALBC1_1MHz;
DCOCTL = CALDCO_1MHz
Gating time: 5ms
−40°C − +85°C 1.8 V − 3.6 V 0.950 1 1.050 MHz
f
CAL(8MHz)
8MHz calibration value
BCSCTL1= CALBC1_8MHz;
DCOCTL = CALDCO_8MHz
Gating time: 5ms
−40°C − +85°C 1.8 V − 3.6 V 7.600 8 8.400 MHz
f
CAL(12MHz)
12MHz calibration value
BCSCTL1= CALBC1_12MHz;
DCOCTL = CALDCO_12MHz
Gating time: 5ms
−40°C − +85°C 2.2 V − 3.6 V 11.40 12 12.60 MHz
f
CAL(16MHz)
16MHz calibration value
BCSCTL1= CALBC1_16MHz;
DCOCTL = CALDCO_16MHz
Gating time: 2ms
−40°C − +85°C 3.0 V − 3.6 V 15.00 16 17.00 MHz