TDA5230 Infineon Technologies, TDA5230 Datasheet - Page 82

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TDA5230

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

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

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Figure 40
AD Converter:
The AD sampling rate division factor ADCDIV is always a multiple of 16 times of the data
rate, and in a range from 96 kHz to 320 kHz. For example for a 2 kb/s data rate the ADC
sampling rate has to be a multiple of 32 kHz, the optimal ADC sampling rate is 320 kHz.
Because of f
Therefore, there is an ideal sample rate (e.g. 320 kHz) and finally a real sample rate
(322.576 kHz, note: values slightly higher than 320 kHz are tolerated if calculated by the
IAF Tool). The difference between the ideal and the real sample rate should not be more
than 2%. For better performance, the highest possible ADC sampling rate should be set.
For data rates lower or equal to 1.1kb/s a maximum sample rate of 120 kHz should be
selected.
A data decimation is required to correct the values which are dependent on the factor of
oversampling.
The calculation formulas for ADCDIV / ASKDEC factors:
The following calculations are fully supported by the IAF TDA523x Configuration
Tool!
Data Sheet
Demodulator
Generator
RSSI-
from
FSK-
from
SYS
AD-Control and Matched-FIlter
A
and the used clock divider, not all ADC sampling rates are possible.
D
Detector
Peak
Slicer
Pre
Master-Control-Unit
from
EoC
SoC
RSSI-Track
RSSI-Clear
f
sys
Clock-Generation
78
Control-Unit
Filter
CIC
A/D
EOM
T
nom
/ 16
Functional Description
T
nom
Dif
Version 4.0, 2007-06-01
/ 16
unsliced data
at rate T
nom
TDA523x
/ 16
to
signal
detection

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