TDA5230 Infineon Technologies, TDA5230 Datasheet - Page 34

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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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Calculation of sub-channels is automatically performed by the IAF TDA523x
Configuration Tool.
When defining a multichannel system, the correct selection of channel spacing is
extremely important. A general rule is not possible, but following must be
considered:
Data Sheet
For Lo Side LO Injection mode operation: f
For Hi Side LO Injection mode operation: f
-1
-1
S
If an additional SAW filter is used, all channels including their tolerances have to be
inside the SAW filter bandwidth.
The distance between channels has to be high enough, that no overlapping can
happen. Strong input signals may still appear as recognizable input signal in the
neighboring channel because of the limited suppression of IF Filters. Example: a
typical 280kHz IF filter has at 10.3 MHz ( 10.7 Mhz-0.4 MHz ) only 30 dB suppression.
A -70 dBm input signal appears like a -100 dBm signal, which is inside the receiver
sensitivity. In critical cases the use of two IF filters must be considered. See also
Chapter 2.4.8 Functionality of the IF Path
R
2
1
f
RF
433.093
432.267
[MHz]
30
RF
RF
= f
= f
LO
LO
- 10.7 MHz
+ 10.7 MHz
Functional Description
Version 4.0, 2007-06-01
TDA523x

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