參數(shù)資料
型號(hào)： SAF-C164SV-2RF
廠商： INFINEON TECHNOLOGIES AG
英文描述： 16-Bit Single-Chip Microcontroller
中文描述： 16位單片機(jī)
文件頁數(shù)： 54/65頁
文件大?。?/td> 648K
代理商： SAF-C164SV-2RF
C164SV
Data Sheet
50
V1.0, 2003-04
Preliminary
A/D Converter Characteristics
(Operating Conditions apply)
Table 13
Parameter
A/D Converter Characteristics
Symbol
Limit Values
min.
Unit Test
Conditions
max.
V
DD
+ 0.1 V
V
SS
+ 0.2 V
V
AREF
6.25
40
t
BC
+
t
S
+ 2
t
CPU
46
t
BC
+
t
S
+ 2
t
CPU
3328
t
BC
±
2
±
4
t
BC
/ 60
- 0.25
t
S
/ 450
- 0.25
33
Analog reference supply
Analog reference ground
Analog input voltage range
Basic clock frequency
Conversion time
3)
V
AREF
SR 4.0
V
AGND
SR
V
SS
- 0.1
V
AIN
SR
V
AGND
f
BC
t
C10
CC –
–
1)
V
MHz
–
1)
V
AIN
may exceed
V
AGND
or
V
AREF
up to the absolute maximum ratings. However, the conversion result in
these cases will be X000
H
or X3FF
H
, respectively.
2)
The limit values for
f
BC
must not be exceeded when selecting the CPU frequency and the ADCTC setting.
3)
This parameter includes the sample time
t
S
, the time for determining the digital result and the time to load the
result register with the conversion result.
Values for the basic clock
t
BC
depend on programming and can be taken from
Table 14
.
This parameter depends on the ADC control logic. It is not a real maximum value, but rather a fixum.
4)
For 12-bit conversions the CPU clock frequency must be limited to
f
CPU
≤
20 MHz to achieve the specified TUE
limits.
5)
During the reset calibration conversions can be executed (with the current accuracy). The time required for
these conversions is added to the total reset calibration time.
6)
TUE is tested at
V
AREF
=
V
DD
+ 0.1 V,
V
AGND
= 0 V. It is guaranteed by design for all other voltages within the
defined voltage range.
The specified TUE is guaranteed only if the absolute sum of input overload currents on Port 5 pins (see
I
OV
specification) does not exceed 10 mA.
During the reset calibration sequence the TUE may reach twice the indicated maximum value.
0.5
2)
10-bit conv.
t
CPU
= 1 /
f
CPU
12-bit conv.
4)
t
CPU
= 1 /
f
CPU
5)
t
C12
CC –
–
Calibration time after reset
Total unadjusted error
t
CAL
TUE
CC –
CC –
–
LSB 10-bit conv.
6)7)
LSB 12-bit conv.
6)
k
t
BC
in [ns]
8)9)
Internal resistance of
reference voltage source
Internal resistance of analog
source
ADC input capacitance
R
AREF
SR –
R
ASRC
SR –
k
t
S
in [ns]
9)10)
C
AIN
CC –
pF
9)
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