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(This figure is conceptual. Select bypass capacitors in application circuits.)
Fig 6-2 Example of Voltage Supply Connection at 5V Use
6.1.3
Supply / Ground Connections
In TC32306FTG supply / ground connections are separated for each functional block. At 5V use, some
of analog functional blocks are connected internal 3V regulator (A_REG30 regulator). At 3V use, some
of analog functional blocks are connected directly 3V supply, by connecting A_VDD_3V / A_VDD_5V
pin.
COM_VDD
A_VDD_5V
3V/5V
A_VDD_3V
Fig 6-3 Conceptual Supply / Ground Connection to Functional Blocks
6.2 Control Mode Settings
TC32306FTG has two control modes, SPI (Serial Peripheral Interface) Mode and EEPROM Mode. The
control mode settings are selected by MODE2 pin. User Test Mode in each Control Mode is selected by
MODE1 pin.
COM_VDD
A_VDD_5V
3V/5V
A_VDD_3V
5V
VDD
VDD
A_REG30
A_REG15
（VDDà3V）
(VDDà1.5V）
3V
1.5V
LNA, IF Filter,
MIX, IF AMP,
PA
RSSI,
A_GND
(This figure shows main supply / ground lines of functional blocks.)
A_REG30
(5Và3V)
D_REG
(VDDà1.5V)
PLL_REG
（VDDà1.5V)
1.5V
Detector,
SPI,
PLL, VCO,
LPF(FSK), ADC,
Monitor
Divider, XOSC
LPF(ASK),
BRF, Data COMP
IO_GND
12
TC32306FTG
D_REG
PLL_REG
A_REG
1.5V
PLL_GND
2015-10-01
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