T48C862M-R3-TNS Atmel, T48C862M-R3-TNS Datasheet - Page 80
T48C862M-R3-TNS
Manufacturer Part Number
T48C862M-R3-TNS
Description
IC MON TIRE PRESS 315MHZ 24SOIC
Manufacturer
Atmel
Datasheet
1.T48C862M-R3-TNS.pdf
(107 pages)
Specifications of T48C862M-R3-TNS
Frequency
315MHz
Modulation Or Protocol
FM, FSK
Data Rate - Maximum
32 kBaud
Power - Output
10dBm
Current - Transmitting
9.5mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Memory Size
1KB EEPROM, 1KB RAM
Voltage - Supply
2 V ~ 4 V
Operating Temperature
-40°C ~ 125°C
Package / Case
24-SOIC (0.200", 5.30mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Features
-
Applications
-
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Combination Mode 3:
Manchester Modulation 1
Combination Mode 4:
Manchester Modulation 2
80
T48C862-R3
SSI mode 1:
Timer 2 mode 1, 2, 3 or 4:
Timer 2 output mode 5:
Figure 76. Manchester Modulation 1
SSI mode 1:
Timer 2 mode 3:
Timer 2 output mode 5:
The 4-bit stage can be used as prescaler for the SSI to generate the stop signal for mod-
ulator 2. The SSI has a special mode to supply the prescaler with the shift clock.
The control output signal (OMSK) of the SSI is used as stop signal for the modulator.
Figure 72 shows an example for a 12-bit Manchester telegram.
Figure 77. Manchester Modulation 2
Counter 2/1
Buffer full
Timer 2
Mode 3
OMSK
TOG2
MSM
SCLI
T2O
SCL
T2O
SIR
SO
SC
SO
SC
0
Data: 00110101
Bit 7
Bit 7
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0
0
0
0
0
0
8-bit shift register internal data output (SO) to the Timer 2
modulator stage
8-bit compare counter and 4-bit prescaler
The modulator 2 of Timer 2 modulates the SSI data output
to Manchester code
0
0
8-bit shift register internal data output (SO) to the Timer 2
modulator stage
8-bit compare counter with 4-bit programmable prescaler
The modulator 2 of Timer 2 modulates the SSI internal
data output to Manchester code
Counter 2/1 = Compare Register 2/1 (= 4)
1
0
1
0
1
1
8-bit SR-data
0
0
0
0
1
1
2
1
3
0
4
0
0
1
Bit 0
Bit 0
1
4554A–4BMCU–02/03
1
2
3
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