TDA5230 Infineon Technologies, TDA5230 Datasheet - Page 106

• Manufacturer Part Number: TDA5230
• Description: IC RECEIVER ASK/FSK 28-TSSOP
• Manufacturer: Infineon Technologies
• Type: Receiverr

Specifications of TDA5230

• Package / Case: 28-TSSOP
• Frequency: 433MHz ~ 450MHz, 865MHz ~ 868MHz
• Sensitivity: -111dBm
• Data Rate - Maximum: 20 kbps
• Modulation Or Protocol: ASK, FSK
• Applications: RKE, TPM, Security Systems
• Current - Receiving: 8mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 3 V ~ 3.6 V, 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 105°C
• Operating Frequency: 870 MHz
• Operating Supply Voltage: 3.3 V, 5 V
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: SP000076520; TDA5230; TDA5230INTR

Some examples of TSI patterns:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0
When CVs are used:
0 0 0 0 0 0 0 0 0 0 0 0 0 M 1
0 0 0 0 0 0 0 0 0 0 0 0 0 1 M
1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 M
Note: CVs in a TSI are practical for better differentiation to the real data, especially if
repetition of data frames is used for wake up.
End of Message (EOM) Detection
An End Of Message (EOM) detection feature is provided by the EOM detector. Three
criteria can be selected to indicate EOM. The first is based on the number of received
bits since frame synchronization. The number of expected bits is preset in the
EOMDTLEN register. Sending fewer bits as defined in the register will result in no EOM.
The EOM counter will be reset after new frame synchronization. The second criterion is
the detection of a Manchester Code Violation. The third criterion is the loss of symbol-
synchronization. Depending on the TVWIN register, the Sync signal persists for a certain
amount of time after the end of the Pattern has been reached. Therefore, more bits could
be written into the FIFO than sent. All three EOM criteria can be combined with each
other. If one of the selected EOM criteria is fulfilled an EOM signal will be generated.
Dual:
ADDR:
Data Sheet
6:3
Bit R/W Description
7
ATSIMODE
W
W
0x82
TSIGRSYN: TSI Gap Resync Mode (For detailed information, see
ATSIGAP/BTSIGAP register description)
0: OFF
1: PLL reset after TSI Gap
TSIWCA: Wild Cards for Correlator A
and
0xA2
and BTSIMODE:
TSI Detection Mode
102
Functional Description
Reset Value: 0x00
Version 4.0, 2007-06-01
TDA523x