T48C862M-R3-TNS Atmel, T48C862M-R3-TNS Datasheet - Page 60

• Manufacturer Part Number: T48C862M-R3-TNS
• Description: IC MON TIRE PRESS 315MHZ 24SOIC
• Manufacturer: Atmel

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: -

Timer 3 – Mode 11:
Biphase Demodulation
60
T48C862-R3
Figure 59. Manchester Demodulation
In the Biphase demodulation mode, the timer operates like in Manchester demodulation
mode. The difference is that the bits are decoded via a toggle flip-flop. This flip-flop sam-
ples the edge in the middle of the bitframe and the compare register 1 match event
shifts the toggle flip-flop output into shift register (see also combined mode 9).
Figure 60. Biphase Demodulation
CM31=SCI
CM31=SCI
SR-DATA
SR-DATA
Counter 3
Timer 3
Timer 3
Q1=SI
mode
mode
T3EX
T3EX
Reset
T3I
T3I
SI
Synchronize
Synchronize
1
0
0
0
BIT 0
BIT 0
1
1
0
1
BIT 1
BIT 1
1
1
1
1
Manchester demodulation mode
Biphase demodulation mode
BIT 2
BIT 2
1
1
1
0
0
BIT 3
BIT 3
0
0
1
0
BIT 4
BIT 4
0
1
0
BIT 5
BIT 5
1
1
0
1
4554A–4BMCU–02/03
BIT 6
BIT 6
1
1
1
0
0
0
0