TDA5220 Infineon Technologies, TDA5220 Datasheet
TDA5220
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TDA5220
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TDA5220 Summary of contents
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P rel imin ecif ica t ion , Oct TDA 5220 ASK Sin gle Co nve rsio n Re ceiver Ver ...
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... Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies failure of such components can reasonably be expected to cause the failure of that life-support device or system affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body support and/or maintain and sustain and/or protect human life ...
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P rel imin ecif ica t ion , Oct TDA 5220 ASK Sin gle Co nve rsio n Re ceiver Ver ...
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TDA 5220 Revision History: Previous Version: Page Subjects (major changes since last revision) We Listen to Your Comments Any information within this document that you feel is wrong, unclear or missing at all? Your feedback will help us to continuously ...
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Table of Contents 1 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Product Description 1.1 Overview The very low power consumption single chip FSK/ASK Superheterodyne Receiver (SHR) for the frequency bands 810 to 870 MHz and 400 to 440 MHz. The IC offers a high level of integration ...
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Functional Description 2.1 Pin Configuration CRST1 VCC LNI TAGC AGND LNO VCC MIX AGND FSEL IFO DGND VDD Figure 1 Pin Configuration Preliminary Specification TDA 5220 ...
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Pin Definition and Functions Table 1 Pin Defintion and Function Pin Symbol Equivalent I/O Schematic No. 1 CRST1 2 VCC 3 LNI Preliminary Specification 1 50uA 57uA 3 500uA TDA 5220 Functional Description Function External Crystal ...
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Pin Symbol Equivalent I/O Schematic No. 4 TAGC 5 AGND 6 LNO 7 VCC Preliminary Specification 4.3V 3uA 4 1k 1.4uA 1. TDA 5220 Functional Description Function AGC Time Constant Control Analogue Ground Return LNA Output 5V 1k ...
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Pin Symbol Equivalent I/O Schematic No MIX 10 AGND 11 FSEL 12 IFO 12 13 DGND Preliminary Specification 2k 8 400uA 750 1. TDA 5220 Functional Description Function Mixer Input 1.7V 2k Complementary Mixer ...
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Pin Symbol Equivalent I/O Schematic No. 14 VDD 15 MSEL 15 16 SSEL 16 17 LIM 18 LIMX Preliminary Specification 40k 40k 2.4V 15k 17 330 18 15k 11 TDA 5220 Functional Description Function 5V Supply (PLL Counter Circuity) ASK/FSK ...
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Pin Symbol Equivalent I/O Schematic No. 19 SLP 19 20 SLN 20 21 OPP 21 22 FFB Preliminary Specification 100 3k 80µA 10k 200 100k 22 12 TDA 5220 Functional Description Function Data Slicer Positive Input 15uA Data Slicer Negative ...
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Pin Symbol Equivalent I/O Schematic No. 23 THRES 23 24 3VOUT 25 DATA 26 PDO Preliminary Specification 10k 24 20k 500 25 26 446k 13 TDA 5220 Functional Description Function AGC Threshold Input 5uA 3V Reference Output 3.1V Data Output ...
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Pin Symbol Equivalent I/O Schematic No. 27 PDWN 28 CRST2 Preliminary Specification 27 220k 220k 28 14 TDA 5220 Functional Description Function Power Down Input External Crystal Connector 2 4.15V 50uA V 1.1, 2004-10-20 ...
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Functional Block Diagram VCC LNO MI 6 LNI 3 RF LNA 4 TAGC VCC 14 DGND 13 2,7 5,10 VCC AGND FSEL Figure 2 Block Diagram 2.4 Functional Block Description 2.4.1 Low Noise Amplifier (LNA) The LNA is an ...
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Mixer The Double Balanced Mixer downconverts the input frequency (RF) in the range of 400- 440MHz/810-870MHz to the intermediate frequency (IF) at 10.7MHz with a vol-tage gain of approximately 21dB by utilising either high- or low-side injection of the ...
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Figure 4. This signal is used to demodulate ASK- modulated receive signals in the subsequent baseband circuitry. The RSSI output is applied to the modulation format switch, to the Peak Detector input and ...
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Sallen-Key low pass filter is formed. The selection of the capacitor values is described in Section 3.2. 2.4.8 Data Slicer The data slicer is a fast comparator with a bandwidth of 100 kHz. This allows for a maximum receive data ...
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Applications 3.1 Application Circuit > < Figure 3 LNA ...
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AGC and are used to charge an external capacitor which finally generates the LNA gain control voltage. 3 2.5 2 1.5 1 0.5 0 -120 -110 -100 Figure 4 RSSI Level and Permissive AGC Threshold Levels The switching point should ...
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Data Filter Design Utilising the on-board voltage follower and the two 100k on-chip resistors a 2nd order Sallen-Key low pass data filter can be constructed by adding 2 external capacitors between pins 19 (SLP) and 22 (FFB) and to ...
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Crystal Load Capacitance Calculation The value of the capacitor necessary to achieve that the crystal oscillator is operating at the intended frequency is determined by the reactive part of the negative resistance of the oscillator circuit as shown in ...
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High-side injection of the local oscillator has to be used for receive frequencies between 810 and 840MHz or beteween 400 and 420MHz. In this case the local oscillator frequency is calculated by ...
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Data Slicer Threshold Generation The threshold of the data slicer can be generated using an external R-C integrator as shown in Figure 7. The time constant T of this circuit including also the internal resistors R A (see Figure ...
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... Data Slicer Threshold Generation Utilising the Peak Detector 3.6 ASK/FSK-Data Path Functional Description The TDA5220 is containing an ASK/FSK switch which can be controlled via Pin 15 (MSEL). This switch is actually consisting of 2 operational amplifiers that are having a gain case of the ASK amplifier and a gain case of the FSK amplifier in order to achieve an appropriate demodulation gain characteristic ...
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RSSI Gen (ASK signal) ASK/FSK Switch - FSK PLL Demodulator + + - 0.18 m V/kHz R F4 int typ 1.5 V......2.5 V 30k ASK m ode: v=1 FSK m ode: v=11 Figure 9 ASK/FSK mode datapath ...
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FSK frequencies should be chosen in the transmitter as the zero-symbol frequency. In the following figure the shape of the above mentioned bandpass is shown. gain (pin19) ...
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ASK Mode In case the receiver is operated in ASK mode the datapath frequency charactersitic is dominated by the data filter alone, thus it is lowpass shaped.The cutoff frequency is determined by the external capacitors C described in Section ...
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... In order to reduce the turn-on time in the presence of large values precharge circuit was included in the TDA5220 as shown in the following figure. C18 R4+R5=600k R4 U threshold 24 23 Uc>Us U2 20k +3.1V Figure 12 Principle of the precharge circuit This circuit charges the capacitor C13 with an inrush current I ...
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The voltage transient during the charging 2.4V Figure 13 Voltage appearing on C18 during precharging process The voltage appearing on the capacitor C13 connected to pin 20 is shown in the following figure. It can be ...
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Uc Us Figure 14 Voltage transient on capacitor C13 attached to pin example the choice of C18 = 22nF and C13 = 47nF yields = 0.44ms 0.71ms 0.53ms 3 This means ...
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Reference 4.1 Electrical Data 4.1.1 Absolute Maximum Ratings Attention: The maximum ratings may not be exceeded under any circumstances, not even momentarily and individually, as permanent damage to the IC may result. The AC/DC characteristic limits are not guaranteed. ...
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Table 8 Operating Range, # Parameter 1 Supply Current 2 Receiver Input Level ASK FSK, frequ. dev. ± 50kHz 3 LNI Input Frequency 4 MI/X Input Frequency 5 3dB IF Frequency Range ASK FSK 6 Powerdown Mode On 7 Powerdown ...
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Table 9 AC/DC Characteristics with T # Parameter SUPPLY Supply Current 1 Supply current, standby mode 2 Supply current, device operating in 868 MHz range, FSK mode 3 Supply current, device operating in 434 MHz range, FSK mode 4 Supply ...
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Parameter # rd 6 Input 3 order intercept point f = 434 MHz Input 3 order intercept point f = 869 MHz signal feedthrough at antenna port Signal Output LNO (PIN 6 ...
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Parameter # 4 Output impedance 869 MHz RF 5 Voltage Gain Antenna 434 MHz RF 6 Voltage Gain Antenna 869 MHz RF Signal 3VOUT (PIN 24) 1 Output voltage 2 ...
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Parameter # 3 Conversion Voltage Gain f = 869 MHz RF LIMITER Signal Input LIM/X (PINS 17/18) 1 Input Impedance 2 RSSI dynamic range 3 RSSI linearity 4 Operating frequency (3dB points) DATA FILTER 1 Useable bandwidth 2 RSSI Level ...
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Parameter # PEAK DETECTOR Signal Output PDO (PIN 26) 1 Load current 2 Internal resistive load CRYSTAL OSCILLATOR Signals CRSTL 1, CRSTL 2 (PINS 1/28) 1 Operating frequency 2 Input Impedance ~ @ 13MHz 3 Serial Capacity ~ @ 13MHz ...
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Parameter # 3 Input bias current PDWN 4 Start-up Time until valid IF signal is detected VCO MULTIPLEXER Signal FSEL (PIN 11 range 434 MHz range 869 MHz RF 3 Input bias current FSEL DATA-SLICER ...
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AC/DC Characteristics at T Currents flowing into the device are denoted as positive currents and vice versa. Table 10 AC/DC Characteristics with T Parameter # SUPPLY Supply Current 1 Supply current, standby mode 2 Supply current, device operating in ...
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Parameter # 2 Current in, LNA high gain state MIXER 1 Conversion Voltage Gain f = 434 MHz RF 2 Conversion Voltage Gain f = 868 MHz RF LIMITER Signal Input LIM/X (PINS 17/18) 1 RSSI dynamic range 2 RSSI ...
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Parameter # PEAK DETECTOR Signal Output PDO (PIN 26) 1 Load current 2 Internal resistive load R CRYSTAL OSCILLATOR Signals CRSTL 1, CRSTL 2 (PINS 1/28) 1 Operating frequency ASK/FSK Signal Switch Signal MSEL (PIN 15) 1 ASK Mode 2 ...
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Parameter # 3 Start-up Time until valid signal is detected at IF VCO MULTIPLEXER Signal FSEL (PIN 11 range 434 MHz range 869 MHz RF 3 Input bias current FSEL DATA-SLICER REFERENCE-LEVEL Signal SSEL (PIN ...
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Figure 15 Schematic of the Evaluation Board 4.3 Test Board Layouts Figure 16 Top Side of the Evaluation Board Preliminary Specification 44 TDA 5220 Reference V 1.1, 2004-10-20 ...
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Figure 17 Bottom Side of the Evaluation Board Figure 18 Component Placement on the Evaluation Board Preliminary Specification 45 TDA 5220 Reference V 1.1, 2004-10-20 ...
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... Bill of Materials The following components are necessary for evaluation of the TDA5220. Table 11 Bill of Materials (cont’d) Ref. Value 434MHz C1 1pF C2 4.7pF C3 6.8pF C4 100pF C5 47nF C6 10nH C7 100pF C8 33pF C9 100pF C10 10nF C11 10nF C12 220pF C13 47nF C14 470pF C15 47nF C16 8 ...
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Ref. Value 434MHz R6 10k S1 STL_2POL S2 SOL_JUMP S3 SOL_JUMP S6 SOL_JUMP X1 STL_2POL X2 A107-900A (1.6mm gold plated) X3 A107-900A (1.6mm gold plated) Please note that in case of operation at 434MHz a capacitor has to be soldered ...
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Package Outlines Figure 19 <Dev_Package1> Table 12 Order Information Type Ordering Code TDA 5220 Q67100-H2049 You can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.infineon.com/products. SMD = Surface Mounted Device ...
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List of Tables Table 1 Pin Defintion and Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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List of Figures Figure 1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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