TDA5230 Infineon Technologies, TDA5230 Datasheet - Page 27

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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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2.4.3
2.4.3.1
The reference clock for the Digital and the RF Section is generated by a pierce-type
crystal oscillator. Adjustable internal load capacitors are provided that allow the
tolerances of the crystal, external load capacitors and the IC itself to be trimmed out.
These capacitors are built of binary weighted C-banks and are connected in parallel to
the external load capacitors. The internal capacitors are controlled by the crystal
oscillator calibration data register (XTALCAL). An automatic amplitude regulation allows
the oscillator to operate with minimal current consumption.
All trim capacitors are disconnected in Sleep Mode (this minimizes current
consumption). Whenever the TDA523x switches from Sleep Mode to Run Modes, the
Master Control Unit reads out the XTALCAL0 and XTALCAL1 registers and connects the
selected trim capacitors to the crystal. A modification of XTALCAL0 or XTALCAL1
registers in Run Modes does not immediately alter the setting of the activated trim
capacitors unless the SFR control bit XTALTREN, is set.
Figure 14
Crystal Selection:
The recommended crystal type and manufacturer is listed in the
Evaluation Board section of this Data Sheet. This crystal has been released by Infineon
as well by the crystal manufacturer for optimal operation with TDA523x.
If additional crystal types are released, this information will be published on the related
TDA523x product page at www.infineon.com.
Data Sheet
System Clock
Crystal Oscillator
Crystal Oscillator
XTAL1
Oscillator-Core
(DGND)
f
sys
XTAL2
23
9
controlled
Functional Description
by MCU
Setting
Bill of Materials
Version 4.0, 2007-06-01
XTALTREN
XTALCAL0
XTALCAL1
TDA523x
in the

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