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13.4 Example of Application Circuit 3
is an example of application circuit controlled by MCU and EEPROM.
Fig 13-4
(Bidirectional communication / 5V Use)
VDD
MCU
- Fig 13-4 is EEPROM Mode and external EEPROM I/O is connected to SPI control pins of TC32306FTG,
- Fig 13-4 is 5V Use. For 3V Use, change the voltage supply connections by referring Fig 13-1.
- Do not connect DC voltage except ground to RF_IN pin.
- MCU controls RESET pin.
- MCU controls ENB pin, RX_SW pin and TX_SW pin to set configuration of EEPROM.
- MCU accepts a signal from DET_TMONI1 pin as an interrupt signal.
- MCU monitors RSSI_OUT pin signal.
- In EEPROM Mode, this IC doesn't prepare antenna switch control.
- About EEPROM pin termination, see that manual.
(for example: SPI Serial EEPROM S-25A010A/020A/040A series, Seiko Instruments Inc.)
- About resistors, capacitors and coils values in the circuit, consider referring to the evaluation circuit of section 13.1.
X1
30.32MHz
27
26
25
24
0.1µF
X_OUT
X_IN
PLL_
PLL_REG TEST MODE1 MODE2 RESET TX_SW
GND
Reference
28
XOSC
clock
29
ASK
TX
30
FSK
RX
Data
31
COMP
TC32306FTG
BRF
32
LPF
33
Limiter
34
LPF
35
Monitor
36
DET_
DET_
DET_
TMONI2
TMONI3
ENB
TMONI4
1
2
3
Fig 13-4 Example of Application Circuit 3
96
23
22
21
20
19
18
17
PA
16
Divider
PLL
VCO
15
14
IF
Detector
Filter
13
IF AMP
12
MIX
ADC
RSSI
11
LNA
10
RSSI_
RX_SW
RF_DEC
RF_IN
3V/5V
OUT
4
5
6
7
8
9
TC32306FTG
L1
C3
L2
0.1µF
C4
0.1µF
0.1µF
R1
L3
C5
RX_IN
C6
2015-10-01
TX_OUT
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