TDA5230 Infineon Technologies, TDA5230 Datasheet - Page 120

• 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

Address Pointers jump from their maximum value (127
FIFO stops at EOM or after Sync loss.
FIFO Lock Behavior
The FIFO possesses a lock mechanism that is enabled via the SFR control bit FIFOLK
in CMC0 register. If this mechanism is enabled, the FIFO will enter a FIFO Lock state at
the detection of the EOM criterion. During the time that the FIFO is locked, it is not
possible for additional data to be received in the Run Mode Self Polling. This means that
it is only possible to detect another wake up in the Self Polling Mode, but no more data
in the Run Mode Self Polling. This will guarantee that only the first complete data packet
is stored in the FIFO. The FIFO will remain locked unless one of three conditions occurs:
1.) The remaining contents of the FIFO are completely read out via the SPI
2.) The SFR control bit FIFOLK is cleared.
3.) INITFIFO at Cycle Start is set in the CMC0 register and
Figure 61
Data Sheet
a) FSM is switched to Run Mode Slave or
b) FSM switches from Self Polling Mode to Run Mode Self Polling
FIFO Lock Behavior
INITFIFO (Init Fifo@ Cycle Start) = 1
EOM=1
FIFOLK=0
FIFOLK=0
Wait till FIFO is empty
Accept Data
Write Data into FIFO
FIFO Lock
EOM=1
FIFOLK=1
FIFO Empty=1
116
EOM=0
FIFO Empty = 0
FIFOLK=1
d
) to address zero. Writing to the
Functional Description
Version 4.0, 2007-06-01
TDA523x