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TC290 Datasheet, PDF (362/476 Pages) Infineon Technologies AG – 32-Bit Single-Chip Micocontroller
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TC290 / TC297 / TC298 / TC299 BB-Step
Electrical SpecificationDSADC Parameters
Table 3-30 DSADC_33V (cont’d)
Parameter
Symbol
Values
Unit Note / Test Condition
Min.
Typ.
Max.
Pass band ripple 8)
dfPB CC
-1
-
Output sampling rate
fD CC
30
-
DC compensation factor
DCF CC -3
-
Positive reference VAREF1 pin IOZ5 CC
-2
-
leakage
1
%
330
kHz
-
dB
10-5 fD
2
µA
Negative reference VAGND1 pin IOZ6 CC
-3
-
leakage
2
µA
Stop band attenuation 8)
Reference ground voltage
SBA CC 40
-
45
-
50
-
55
-
60
-
VAGND SR VSSM -
-
0.05
-
dB
-
dB
-
dB
-
dB
-
dB
VSSM +
V
0.05
0.5 ... 1 fD
1 ... 1.5 fD
1.5 ... 2 fD
2 ... 2.5 fD
2.5 ... OSR/2 fD
Positive reference voltage
VAREF SR
VDDMnom * -
0.9
VDDM + V
0.05
Common mode voltage
accuracy
dVCM CC -100
-
100
mV from selected voltage
Common mode hold voltage dVCMH CC -200
-
deviation 12)
200
mV From common mode
voltage
Analog filter settling time
Modulator recovery time
tAFSET CC -
tMREC CC -
2
4
3.5
-
µs
If enabled
µs
After leaving overdrive
state
Modulator settling time 13)
tMSET CC -
1
-
µs
After switching on,
voltage regulator
already running
Spurious Free Dynamic Range SFDR CC 52
-
-
dB
VCM = 2.2 V, DC
7)14)
coupled; VDDM = ±10%
60
-
-
dB
VCM = 2.2 V, DC
coupled; VDDM = ±5%
1) The maximum input range for symmetrical signals (e.g. AC-coupled inputs) depends on the selected internal/external
common mode voltage. In this case the Amplitude is limited to VCM * 2.
2) All modulators must run on the same frequency.
3) The calibration sequence must be executed once after an Application Reset
4) The total DC error for the uncalibrated case can be calculated by the geometric addition of EDGAIN and EDOFF
5) Recalibration needed in case of a temperature change > 20ºC.
6) The variation of the impedance between different channels is < 1.5%.
7) Derating factors:
-2 dB in standard-performance mode.
-3 dB for CMV = 10B, i.e. VCM = (VAREF±2%) / 2.0.
8) CIC3, FIR0, FIR1 filters enabled.
9) Single-ended mode reduces the SNR by 6 dB if the unused input is grounded, by 3 dB if the unused input connects to VCM
(GAIN = 2).
Data Sheet
3-356
V 1.1 2015-05
TC290/TC297/TC298/TC299 BB-Step Data Sheet downloaded by saravanakumar maniyam (larsen and Toubro limited) at 08 Sep 2015 08:06
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