TDA5230 Infineon Technologies, TDA5230 Datasheet - Page 54

• 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

TDA523x
Functional Description
2.4.6
Polling Timer Unit
SPM
SPM
SPM
f
/ 64
f
f
sys
RT
OnOff
Reference-Timer
On-Off-Timer
Active-Idle Period Timer
(8 Bit)
(14 Bit)
(7 Bit)
Self-Polling-Mode (SPM)
No WU
FSM
Polling Mode
to
Master-Control-Unit
Figure 23
Polling Timer Unit
The Polling Timer Unit consists of a Counter Stage and a Control FSM (Finite State
Machine).
The Counter Stage is divided into three sub-modules.
The Reference Timer is used to divide the state machine clock (fsys/64) into the slower
clock required for the SPM timers.
The On/Off Timer and the Active Idle Period Timer are used to generate the polling
signal. The whole unit is controlled by the SPM FSM.
Data Sheet
50
Version 4.0, 2007-06-01