TC1912 Datasheet, PDF (42/68 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

PRELIMINARY
Codec Electrical Characteristics
TC1912
Parameter
Symbol Limit values
min. typ. max.
Unit Test
Conditions
Digital supply voltage
V_DD
1.71 1.8 1.89 V
Analog supply voltage
V_DDA
3.0 3.3 3.6
V
Analog supply ground
V_SSA
-0.1 0.0
External reference voltage V_AREF1) 1.14 1.2
+0.1 V
+1.26²⁾ V
Analog reference ground V_AGND
V_SSA- V_SSA V_SSA+ V
0.05
0.05
Analog input voltage
(RMS)
V_AIN
0.775 V_rms ³⁾
Analog output voltage
(RMS)
V_AOUT
0.775 V_rms
Input Resistace of the
Rain
-
30 -
Analog Inputs⁴⁾
kOhm differential
input, gain:
-12,-6, 0 dB
-
15 -
kOhm single-ended
input, gain:
-12,-6, 0 dB
-
60 -
kOhm differential
input, gain:
6 to 30 dB
-
30 -
kOhm single-ended
input, gain:
6 to 30 dB
Internal Reference
V_BGP
1.1 1.2 1.3
V
AGCCR.
Voltage Vref (Bandgap
BGPSEL[1,0]
Voltage)⁵⁾
=00
1) _{Reference voltage outside the nominal range causes reduced dynamic range, decreased distortion/clipping}
margins, increased/decreased gain.
2) _{VSSA=VAGND=0V}
3) _{Please take the gain settings of the analog preamplifier into account, therefore Vimaxreal=Vimax/gain}
4) _{Simulation value.}
5) _{For external usage, Bandgap reference voltage is strongly dependent on the external load (<500 MOhm). In}
this case, high impedance buffer must be used.
Data Sheet
38
V 1.0, 2003-10