TC1920 Datasheet, PDF (41/78 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1920
Preliminary
Power Supply
Figure 15 shows the TC1920 power supply concept, where certain logic modules are
individually supplied with power. In this way, the noise margin is improved in the
especially sensitive modules, like the A/D converter and the CODEC.
V_DDA
V_SSA
V_DDA
V_SSA
V_DDA
V_SSA
V_DDA
V_SSA
V_DDA
V_SSA
V_DDA
V_SSA
M A IN
OSC
RTC
OSC
PLL
(a n a lo g )
ADC
(a n a lo g )
CODEC 0 CODEC 1
(a na lo g) (ana log)
V_DDP
V_SSP
X
V_DDP
V_SSP
B attery
Backed
S tand- By
SRAM
ALL DIG IT AL CORE
COMPONENTS
Figure 15
V_{DD_SB}
V_DDR
V_SS
V_DD
V_SS
TC1920 Power Supply Concept
Y
V_DD
V_SS
Data Sheet
37
V 1.3, 2003-10