Datasheet

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SLAS272F − JULY 2000 − REVISED JUNE 2004
32
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
DCO (see Note 1)
PARAMETER TEST CONDITIONS MIN NOM MAX UNIT
f
(DCO03)
R
sel
= 0, DCO = 3, MOD = 0, DCOR = 0, T
A
= 25°C V
CC
= 2.2 V 0.08 0.12 0.15
MHz
f
(DCO03)
V
CC
= 3 V 0.08 0.13 0.16
MHz
f
(DCO13)
R
sel
= 1, DCO = 3, MOD = 0, DCOR = 0, T
A
= 25°C V
CC
= 2.2 V 0.14 0.19 0.23
MHz
f
(DCO13)
V
CC
= 3 V 0.14 0.18 0.22
MHz
f
(DCO23)
R
sel
= 2, DCO = 3, MOD = 0, DCOR = 0, T
A
= 25°C V
CC
= 2.2 V 0.22 0.30 0.36
MHz
f
(DCO23)
V
CC
= 3 V 0.22 0.28 0.34
MHz
f
(DCO33)
R
sel
= 3, DCO = 3, MOD = 0, DCOR = 0, T
A
= 25°C V
CC
= 2.2 V 0.37 0.49 0.59
MHz
f
(DCO33)
V
CC
= 3 V 0.37 0.47 0.56
MHz
f
(DCO43)
R
sel
= 4, DCO = 3, MOD = 0, DCOR = 0, T
A
= 25°C V
CC
= 2.2 V 0.61 0.77 0.93
MHz
f
(DCO43)
V
CC
= 3 V 0.61 0.75 0.90
MHz
f
(DCO53)
R
sel
= 5, DCO = 3, MOD = 0, DCOR = 0, T
A
= 25°C V
CC
= 2.2 V 1 1.2 1.5
MHz
f
(DCO53)
V
CC
= 3 V 1 1.3 1.5
MHz
f
(DCO63)
R
sel
= 6, DCO = 3, MOD = 0, DCOR = 0, T
A
= 25°C V
CC
= 2.2 V 1.6 1.9 2.2
MHz
f
(DCO63)
V
CC
= 3 V 1.69 2.0 2.29
MHz
f
(DCO73)
R
sel
= 7, DCO = 3, MOD = 0, DCOR = 0, T
A
= 25°C V
CC
= 2.2 V 2.4 2.9 3.4
MHz
f
(DCO73)
V
CC
= 3 V 2.7 3.2 3.65
MHz
f
(DCO47)
R
sel
= 4, DCO = 7, MOD = 0, DCOR = 0, T
A
= 25°C V
CC
= 2.2 V/3 V
f
DCO40
× 1.7
f
DCO40
× 2.1
f
DCO40
× 2.5
MHz
f
(DCO77)
R
sel
= 7, DCO = 7, MOD = 0, DCOR = 0, T
A
= 25°C
V
CC
= 2.2 V 4 4.5 4.9
MHz
f
(DCO77)
R
sel
= 7, DCO = 7, MOD = 0, DCOR = 0, T
A
= 25°C
V
CC
= 3 V 4.4 4.9 5.4
MHz
S
(Rsel)
S
R
= f
Rsel+1
/ f
Rsel
V
CC
= 2.2 V/3 V 1.35 1.65 2
S
(DCO)
S
DCO
= f
DCO+1
/ f
DCO
V
CC
= 2.2 V/3 V 1.07 1.12 1.16
D
t
Temperature drift, R
sel
= 4, DCO = 3, MOD = 0
V
CC
= 2.2 V −0.31 −0.36 −0.40
%/°C
D
t
Temperature drift, R
sel
= 4, DCO = 3, MOD = 0
(see Note 2)
V
CC
= 3 V −0.33 −0.38 −0.43
%/°C
D
V
Drift with V
CC
variation, R
sel
= 4, DCO = 3, MOD = 0
(see Note 2)
V
CC
= 2.2 V/3 V 0 5 10 %/V
NOTES: 1. The DCO frequency may not exceed the maximum system frequency defined by parameter processor frequency, f
(System)
.
2. This parameter is not production tested.
2.2 3
f
DCO_0
Max
Min
Max
Min
f
DCO_7
DCO
0 1 2 3 4 5 6 7
f
DCOCLK
1
V
CC
− V
Frequency Variance
Figure 12. DCO Characteristics