TDA5210 Infineon Technologies, TDA5210 Datasheet - Page 20

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TDA5210

Manufacturer Part Number
TDA5210
Description
IC LP FSK/ASK SHR P-TSSOP-28
Manufacturer
Infineon Technologies
Type
Receiverr
Datasheet

Specifications of TDA5210

Package / Case
28-TSSOP
Frequency
810MHz ~ 870MHz, 400MHz ~ 440MHz
Sensitivity
-107dBm
Modulation Or Protocol
ASK, FSK
Applications
Alarm Systems, Communication Systems
Current - Receiving
4.8mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Voltage - Supply
4.6 V ~ 5.5 V
Operating Temperature
-40°C ~ 105°C
Operating Frequency
870 MHz
Operating Supply Voltage
5 V
Maximum Operating Temperature
+ 150 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Operating Temperature (min)
-40C
Operating Temperature Classification
Automotive
Product Depth (mm)
4.4mm
Product Length (mm)
9.7mm
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Memory Size
-
Data Rate - Maximum
-
Lead Free Status / Rohs Status
Compliant
Other names
SP000016384
TDA5210INTR

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Wireless Components
3.4.7
3.4.8
3.4.9
gain is 1 in order not to saturate the subsequent Data Filter wih the DC offset
produced by the demodulator in case of large frequency offsets of the IF signal.
The resulting frequency characteristic and details on the principle of operation
of the switch are described in Section 4.6.
The demodulator circuit is switched off in case of reception of ASK signals.
Data Filter
The data filter comprises an OP-Amp with a bandwidth of 100kHz used as a
voltage follower and two 100k
capacitors a 2nd order Sallen-Key low pass filter is formed. The selection of the
capacitor values is described in Section 4.2.
Data Slicer
The data slicer is a fast comparator with a bandwidth of 100 kHz. This allows
for a maximum receive data rate of up to 100kBaud. The maximum achievable
data rate also depends on the IF Filter bandwidth and the local oscillator toler-
ance values. Both inputs are accessible. The output delivers a digital data sig-
nal (CMOS-like levels) for sbsequent circuits. The self-adjusting threshold on
pin 20 its generated by RC-term or peak detector depending on the baseband
coding scheme. The data slicer threshold generation alternatives are described
in more detail in Section 4.5.
Peak Detector
The peak detector generates a DC voltage which is proportional to the peak
value of the receive data signal. An external RC network is necessary. The input
is connected to the output of the RSSI-output of the Limiter, the output is con-
nected to the PDO pin (Pin 26 ). This output can be used as an indicator for the
received signal strength to use in wake-up circuits and as a reference for the
data slicer in ASK mode. The maximum output current is typically 950µA, the
discharge current is lower than 2µA. Note that the RSSI level is also output in
case of FSK mode.
Table 3-4 MSEL Pin Operating States
MSEL
Open
Shorted to ground
3 - 12
on-chip resistors. Along with two external
Modulation Format
Functional Description
ASK
FSK
Specification, May 2001
TDA 5210

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