tda5255e1 Infineon Technologies Corporation, tda5255e1 Datasheet

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tda5255e1

Manufacturer Part Number
tda5255e1
Description
Ask/fsk 434mhz Wireless Transceiver
Manufacturer
Infineon Technologies Corporation
Datasheet

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Part Number:
TDA5255E1
Manufacturer:
INFINEON/英飞凌
Quantity:
20 000
P re liminary Spe c ification, Versio n 1.1, 2 002-11-28
T D A 5 2 5 5 E 1
A S K / F S K 4 3 4 M H z W i r e l e s s
T r a n s c e i v e r
W i r e l e s s C o m p o n e n t s
N e v e r
s t o p
t h i n k i n g .

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tda5255e1 Summary of contents

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P re liminary Spe c ification, Versio n 1.1, 2 002-11- ...

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Edition 2002-11-28 Published by Infineon Technologies AG, St.-Martin-Strasse 53, D-81541 München, Germany © Infineon Technologies AG 11/29/02. All Rights Reserved. Attention please! The information herein is given to describe certain components and shall not be considered as warranted characteristics. Terms ...

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P re liminary Spe c ification, Versio n 1.1, 2 002-11- ...

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Preliminary Specification Confidential Revision History: 2002-11-28 Previous Version: 1.0, 2002-10-30 Page Subjects (major changes since last revision) 12 Wrong pin names and description at pin 7 and 8 corrected 13 Additional note at pin 15 14,15 Correction of pin names ...

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Confidential ASK/FSK 434MHz Wireless Transceiver TDA5255 E1 Product Info General Description The low power consumption single chip FSK/ASK Transceiver for half duplex low datarate communication in the 433-435MHz band. The IC offers a very high level of ...

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Confidential Table of Contents 1 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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Confidential Table of Contents 3.2.1 Synthesizer Frequency setting . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.2 Transmit/Receive ASK/FSK Frequency Assignment . . ...

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Confidential 1 Product Description 1.1 Overview The low power consumption single chip FSK/ASK Transceiver for the frequency band 433- 435 MHz. The IC combines a very high level of integration and minimum external part count. The device ...

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Confidential 1.3 Application – Low Bitrate Communication Systems – Keyless Entry Systems – Remote Control Systems – Alarm Systems – Telemetry Systems – Electronic Metering – Home Automation Systems 1.4 Package Outlines Figure 1-1 P-TSSOP-38-1 package outlines Preliminary Specification Product ...

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Confidential 2 Functional Description 2.1 Pin Configuration VCC BUSMODE LF ____ ASKFSK __ RxTx LNI LNIx GND1 GNDPA PA VCC1 PDN PDP SLC VDD BUSDATA BUSCLK VSS XOUT Figure 2-1 Pin Configuration Preliminary Specification ...

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Confidential 2.2 Pin Definitions and Functions Table 2-1 Pin Definition and Function Pin No. Symbol Equivalent I/O-Schematic 1 VCC 2 BUSMODE ASKFSK 4 Preliminary Specification 350 2 200 350 11 TDA5255 E1 Version ...

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Confidential 5 RXTX 5 6 LNI 6 7 LNIX 8 GND1 8 9 GNDPA VCC1 Preliminary Specification 350 1.1V 7 180 180 PWDN PWDN see Pin see Pin 8 ...

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Confidential 12 PDN 12 13 PDP 13 14 SLC 14 15 VDD 16 BUSDATA 16 17 BUSCLK 17 Preliminary Specification Output of the negative peak detector 50k 50k PWDN 350 3k Output of the positive peakdetector 50k 50k 350 3k ...

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Confidential 18 VSS 19 XOUT Vcc 20 XSWF 125fF ..... 250fF ..... 21 XIN 22 XSWA 23 XGND Preliminary Specification see Pin 8 4k Vcc-860mV 19 150mA 21 4pF 20 8pF 23 see Pin ...

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Confidential 25 RESET 25 26 CLKDIV 26 27 PWDDD 27 28 DATA 28 29 RSSI 29 Preliminary Specification Reset of the entire system (to default values), active low 110k 350 10p Clock output 350 Power Down input (active high), data ...

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Confidential 30 GND 31 CQ2x 31 32 CQ2 33 CI2x 34 CI2 35 CQ1x 36 CQ1 37 CI1x 38 CI1 Preliminary Specification see Pin 8 Analog ground Pin for external Capacitor Q-channel, stage 2 Stage1:Vcc-630mV Stage2: Vcc-560mV II Q-channel, stage ...

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... Confidential 2.3 Functional Block Diagram BUSMODE __ EN BUSCLK BUSDATA SLC 31 CQ2x 32 CQ2 33 CI2x 34 CI2 35 CQ1x 36 CQ1 37 CI1x 38 CI1 (digital) (analog) (LNA/PA) Figure 2-2 Main Block Diagram Preliminary Specification Functional Description TDA5255E1_blockdiagram_aktuell.wmf 17 TDA5255 E1 Version 1.1 2002-11-28 ...

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Confidential 2.4 Functional Block Description 2.4.1 Power Amplifier (PA) The power amplifier is operating in C-mode. It can be used in either high or low power mode. In high-power mode the transmit power is approximately +13dBm into 50 Ohm at ...

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Confidential 2.4.5 PLL Synthesizer The Phase Locked Loop synthesizer consists of two VCOs (i.e. transmit and receive VCO), a divider asynchronous divider chain with selectable overall division ratio, a phase detector with charge pump and a loop ...

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Confidential 2.4.7 I/Q Limiters The I/Q Limiters are DC coupled multistage amplifiers with offset-compensating feedback circuit and an overall gain of approximately 80dB each in the frequency range of 100Hz up to 350kHz. Receive Signal Strength Indicator (RSSI) generators are ...

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Confidential 2.4.9 Data Filter The 2-pole data filter has a Sallen-Key architecture and is implemented fully on-chip. The bandwidth can be adjusted between approximately 5kHz and 102kHz via the bits the LPF register as shown in ...

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Confidential 2.4.13 Bandgap Reference Circuitry and Powerdown A Bandgap Reference Circuit provides a temperature stable 1.2V reference voltage for the device. A power down mode is available to switch off all subcircuits that are controlled by the bidirectional Powerdown&DataDetect PwdDD ...

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Confidential 2 The 3-wire Bus Interface gives an external microcontroller full control over important system parameters at any time possible to set the device in three different modes: Slave Mode, Self Polling Mode and Timer ...

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Confidential Bus Mode In this mode the BusMode pin (pin 2) = LOW and the EN pin (pin 24) = LOW. Data Transition: Data transition on the pin BusData can only occur when BusCLK is LOW. BusData ...

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Confidential 2 Bus Data Format Mode Table 2-7 Chip address Organization MSB Table 2 Bus Write Mode 8 Bit MSB CHIP ADDRESS LSB (WRITE) STA 1 ...

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Confidential Bus Data Format 3-wire Bus Mode Table 2-11 3-wire Bus Write Mode MSB SUB ADDRESS (WRITE) 00H...08H, 0DH, 0EH,0FH Table 2-12 3-wire Bus Read Mode MSB SUB ADDRESS (READ) 80H, 81H ...

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Confidential Subaddress Organization Table 2-13 Sub Addresses of Data Registers Write MSB LSB ...

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Confidential Table 2-16 Sub Address 01H: FSK Bit Function Value Description D15 not used D14 not used D13 FSK+5 8pF Setting for positive D12 FSK+4 4pF frequency D11 FSK+3 2pF shift: +FSK or D10 FSK+2 1pF ASK-RX D9 FSK+1 500fF ...

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Confidential Table 2-22 Sub Address 08H: RSSI_TH3 Bit Function Description D7 not used D6 SELECT 0= VCC, 1= RSSI D5 TH3_5 D4 TH3_4 D3 TH3_3 D2 TH3_2 D1 TH3_1 D0 TH3_0 Table 2-24 Bit Function ...

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Confidential 2.4.16 Wakeup Logic MODE_1 = 1 MODE_2 = X Figure 2-9 Wakeup Logic States Table 2-28 MODE settings: CONFIG register MODE_1 MODE_2 SLAVE MODE: The receive ...

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Confidential Note: The time delay between start of ON time and the 15µs LOW impulse is 2.6ms + 3 period of data rate. If ADC & Data Detect Logic are in continuous mode the 15µs LOW impulse is applied at ...

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Confidential The use of permanent data valid recognition makes it absolutely necessary to set the RSSI-ADC and the Window counter into continuous mode (Register 00H, Bit 1). 0,5*TH1 Figure 2-13 Data Valid Circuit D_OUT and RX_DATA_INV ...

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Confidential Note required to activate the device for the duration of t Only if this is done the normal operation timing is performed. With default settings the clock generating units are disabled during PD, therefore no clock is ...

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Confidential Note: The time values are typical values This means that the device needs t When activating TX it requires t For timing information refer to Table 4-3. For Test purposes a TESTMODE is provided by the Sequencer as well. ...

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Confidential Table 2-29 CLK_DIV Output Selection Note: Data are valid 500 µs after the crystal oscillator is enabled (see Figure 2-15 and Figure 2- 16, t CLKSU ). Table 2-30 ...

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Confidential To prevent wrong interpretation of the ADC information (read from Register 81H: ADC) you can use the ADC- Power Down feedback Bit (D7) and the SELECT feedback Bit (D6) which correspond to the actual measurement. Note: As shown in ...

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Confidential 3 Application 3.1 LNA and PA Matching 3.1.1 RX/TX Switch Figure 3-1 RX/TX Switch The RX/TX-switch combines the PA-output and the LNA-input into a single 50 Ohm SMA- connector. Two pin-diodes are used as switching elements current ...

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Confidential Figure 3-2 RX-Mode The RF-signal is able to run from the RF-input-SMA-connector to the LNA-input-pin LNI via C1, C2, C7, L3 and C9. R1 does not affect the matching circuit due to its high resistance. The other input of ...

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Confidential Measured Magnitude of S11 of evalboard: Figure 3-3 S11 measured Above you can see the measured S11 of the evalboard. The –3dB-points are at 404MHz and 468MHz. So the 3dB-bandwidth is 468 MHz ...

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Confidential The noise figure of the LNA-input-matching network is equal to its losses. The input matching network is always a compromise of sensitivity and selectivity. The loaded Q should not get too high because of 2 reasons: more losses in ...

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Confidential Now both pin-diodes are biased with a current of approx. 0.3mA@3V and have a very low impedance for RF. Figure 3-4 TX_Mode R1 does not influence the matching because of its very high resistance. Due to the large capacitance ...

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Confidential 3.1.4 Power-Amplifier The power amplifier operates in a high efficient class C mode. This mode is characterized by a pulsed operation of the power amplifier transistor at a current flow angle of q<<p. A frequency selective network at the ...

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Confidential The diagram of Figure 3-7 has been measured directly at the PA-output at V the matching circuit of about 3dB will decrease the output power. As shown in the diagram, 250 Ohm ...

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Confidential Figure 3-8 Power output and collector current vs. frequency C4, L2 and C3||C2 are the main matching components which are used to transform the 50 Ohm load at the SMA-RF-connector to a higher impedance at the PA-output (250Ohm@3V). L1 ...

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Confidential Figure 3-9 Sparam_measured_200M Above you can see the measurement of the evalboard with a span of 200MHz. The evalboard has been optimized for 3V. The load is about 250+j0 at 434,2MHz. A tuning-free realization requires a careful design of ...

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Confidential Figure 3-10 Transmit Spectrum 3GHz Figure 3-11 Transmit Spectrum 300MHz Regarding CEPT ERC recommendation 70-03 and ETSI regulation EN 300220 both of the following figures show full compliance in case of ASK and FSK modulation spectrum. Data signal is ...

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Confidential Figure 3-12 ASK Transmit Spectrum 100kBaud, Manch, PRBS9, 9dBm, 3V Figure 3-13 FSK Transmit Spectrum 32kBaud, Manch, PRBS9, 9dBm, 3V Preliminary Specification ASK_100kBaud_Manch_PRBS9_9dBm_3V_Spectrum_CEPT_ERC7003.wmf FSK_32kBaud_Manch_PRBS9_9dBm_3V_Spectrum_CEPT_ERC7003.wmf 47 TDA5255 E1 Version 1.1 Application 2002-11-28 ...

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Confidential 3.2 Crystal Oscillator The equivalent schematic of the crystal with its parameters specified by the crystal manufacturer can be taken from the subsequent figure. Here also the load capacitance of the crystal which the crystal wants ...

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Confidential d f ´ Choosing large as possible results in a small ...

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Confidential -R Figure 3-15 Crystal Oscillator 1 = « OSC OSC With the aid of this formula it becomes obvious that the ...

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Confidential With C and C the necessary Alternatively, an external AC coupled (10nF in series to 1k The drive level should be approximately 100mVpp. 3.2.1 Synthesizer Frequency setting Generating ASK and FSK modulation 3 setable frequencies are ...

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Confidential e. (434,16E6 + 35E3) / 24= 18.09146MHz COSC (434,16E6 - 35E3) / 24= 18.08854MHz COSC LOW with a frequency deviation of 35kHz. Figure 3-17 shows the configuration of the switches and the capacitors to ...

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Confidential In receive mode the crystal oscillator frequency is set to yield a direct-to-zero conversion of the receive data. Thus the frequency may be calculated 24, COSC RF e. 434,16E6 / 24= 18.09MHz ...

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Confidential Figure 3-19 parasitics of the switching network Table 3-2 Typical values of parasitic capacitances Name With the given parasitics the actual ...

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Confidential 3.2.4 Calculation of the external capacitors 1. Determination of necessary crystal frequency using formula [3-19]. e. FSK- COSC LOW 2. Determine corresponding C e. FSK L ± 3. Necessary C using ...

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Confidential The default mode is bipolar switch with no ramp function ( 0), which is suitable for all bitrates. Table 3-3 Sub Address 0EH: XTAL_CONFIG Switch mode 0 n.a. n.a. 1 ...

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Confidential Default values In case of using the evaluation board, the crystal with its typical parameters (fp=18.08958MHz, C =8fF, C =2,08pF, C =20pF) and external capacitors with Cv1=10pF, Cv2=1.8pF, Cv3=15pF each are used the following default states ...

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Confidential In case of internal tuning: The crystal on the evaluation board has a temperature stability of +/- 20ppm (or +/- 8.7kHz), which must be added to the total tolerances in worst case. It’s possible to choose a crystal compensating ...

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Confidential Figure 3-20 I/Q Filter Characteristics - Filter Figure 3-21 IQ Filter and frequency characteristics of the receive system 3.4 ...

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Confidential Table 3-10 3dB cutoff frequencies Data Filter ...

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Confidential The DC offset compensation needs 2.2ms after Power On or Tx/Rx switch. This time is hard wired and independent from external capacitors pins 31 to 38. The maximum value for this capacitors is 47nF. RSSI accuracy ...

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Confidential 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 0 -120 -110 Figure 3-24 Typ. RSSI Level (Eval Board) @3V 3.6 Data Slicer - Slicing Level The data slicer is an analog-to-digital converter ...

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Confidential Data Filter Figure 3-25 Slicer Level using RC Integrator 3.6.2 Peak Detectors Table 3-13 Sub Address 00H: CONFIG Bit Function D15 SLICER The TDA5255 has two peak detectors built in, one for positive peaks in the data stream and ...

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Confidential Data Filter Figure 3-26 Slicer Level using Peak Detector For applications requiring fast attack and slow release from the threshold value it is reasonable to use the peak detectors. The threshold value is generated by an internal voltage divider. ...

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Confidential Component calculation: (rule of thumb 100k T – longest period of no signal change (LOW signal 100k T – longest period of no signal change (HIGH signal) L2 ...

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Confidential Data Filter Figure 3-29 Peak detector - power down mode Signal Vcc Neg. Peak Detector (pin12) Threshold (pin14) Pos. Peak Detector (pin13) 0 Power ON Figure 3-30 Power down mode 3.7 Data Valid Detection In order to detect valid ...

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Confidential Timing for data detection looks like the following. Two settings are possible: „Continuous“ and „Single Shot“, which can be set by D5 and D6 in register 00H. Sequenzer enables data detection Counter Reset Compare with single TH and latch ...

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Confidential 3.7.1 Frequency Window for Data Rate Detection The high time of data is used to measure the frequency of the data signal. For Manchester coding either the data frequency or half of the data frequency have to be detected ...

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Confidential This yields the following results: TH1~ 1017= 001111111001 TH2~ 1243= 010011011011 which have to be programmed into the D0 to D11 bits of the COUNT_TH1 and COUNT_TH2 registers (subaddresses 06H and 07H), respectively. Default values (window counter inactive): TH1= ...

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Confidential Default values: ON= 65215 = 1111111011000000 OFF= 62335 = 1111001110000000 t ~10ms @ f = 32kHz ~100ms @ f = 32kHz OFF RC 3.9 Example for Self Polling Mode The settings for Self Polling Mode depend ...

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Confidential This gives 15ms ON time of a total period of 150ms which results in max. 0.9mA mean current consumption in Self Polling Mode. The resulting worst case timing is shown in the following figure ...

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Confidential based software WinQSIM via a GPIB interface. The AMIQ generator has a pseudo random binary sequence (PRBS) generator and a bit error test set built in. The resulting I/Q signals are applied to the SMIQ to generate a ASK ...

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Confidential The best sensitivity performance can be achieved using a data filter bandwidth of 1.25 times the maximum occuring data frequency. The IQ filter setting is depending on the modulation type. ASK needs an IQ filter of 50kHz, 50kHz deviation ...

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Confidential 3.10.3 Datarates and Sensitivity The TDA 5255 can handle datarates up to 64kbit/s, as can be taken from the following figure. (see Section 4.1.4) Figure 3-38 Datarates and Sensitivity Preliminary Specification 74 TDA5255 E1 Version 1.1 Application BER_Datarate.wmf 2002-11-28 ...

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Confidential 3.11 Default Setup Default setup is hard wired on chip and effective after a reset or return of power supply. Table 3-14 Default Setup Parameter IQ-Filter Bandwidth Data Filter Bandwidth Limiter lower fg Slicing Level Generation Nom. Frequency Capacity ...

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Confidential Preliminary Specification 76 TDA5255 E1 Version 1.1 Application 2002-11-28 ...

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Confidential 4 Reference 4.1 Electrical Data 4.1.1 Absolute Maximum Ratings WARNING The maximum ratings may not be exceeded under any circumstances, not even momentarily and individually, as permanent damage to the IC will result. Table 4-1 Absolute Maximum Ratings # ...

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Confidential 4.1.3 AC/DC Characteristics AC/DC characteristics involve the spread of values guaranteed within the specified voltage and ambient temperature range. Typical characteristics are the median of the production. Table 4-3 AC/DC Characteristics with T # Parameter Symbol RECEIVER Characteristics 1 ...

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Confidential Table 4-3 AC/DC Characteristics with T # Parameter Symbol TRANSMITTER Characteristics 1 Supply current TX, FSK 2 Supply current TX, FSK 3 Supply current TX, FSK 4 Output power 5 Output power 6 Output power 7 Supply current TX, ...

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Confidential Table 4-4 AC/DC Characteristics with T # Parameter GENERAL Characteristics 1 Power down current IPWDN_32k timer mode (standby) 2 Power down current IPWDN_32k timer mode (standby) 3 Power down current with IPWDN_Xtl XTAL ON 4 Power down current with ...

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Confidential 4.1.4 Digital Characteristics Bus Timing BusMode = LOW ...

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Confidential Table 4-5 Digital Characteristics with T # Parameter 1 Data rate TX ASK 2 Data rate TX FSK 3 Data rate RX ASK 4 Data rate RX FSK 5 Data rate RX FSK 6 Digital Inputs High-level Input Voltage ...

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Confidential Table 4-5 Digital Characteristics with T # Parameter 14 LOW period of BusCLK clock 15 HIGH period of BusCLK clock 16 Setup time for a repeated START condition 17 Data hold time 18 Data setup time 19 Rise, fall ...

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Confidential 4.2 Test Circuit The device performance parameters marked with evaluation board (IFX board). Figure 4-3 Schematic of the Evaluation Board Preliminary Specification X in Section 4.1.3 were measured on an Infineon 84 TDA5255 E1 Version 1.1 Reference TDA5250_v41.schematic.pdf 2002-11-28 ...

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Confidential 4.3 Test Board Layout Gerberfiles for this Testboard are available on request. Figure 4-4 Layout of the Evaluation Board Note 1: The LNA and PA matching network was designed for minimum required space and maximum performance and thus via ...

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Confidential Note 3: Difference in supply voltage especially between pin 1 and pin 15 is recommended to be lower than 30mV, therefore a serial resistor in the VDD supply line, as mentioned on page 13 and in Section 4.4, is ...

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Confidential 4.4 Bill of Materials Table 4-6 Bill of Materials Reference R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 ...

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Confidential Table 4-6 Bill of Materials Reference C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 IC1 TDA5255 E1 IC2 IC3 Q1 18.08958MHz S1 T1 D1, D2 X1, X2 ...

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Confidential List of Tables Table 2-1 Pin Definition and Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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Confidential List of Tables Table 3-13 Sub Address 00H: CONFIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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Confidential List of Figures Figure 1-1 P-TSSOP-38-1 package outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . page Figure 2-1 Pin ...

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Confidential List of Figures Figure 3-25 Slicer Level using RC Integrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . page ...

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Confidential Index A Absolute Maximum Ratings 77 AC/DC Characteristics 78 Application Electrical Data 77 F Features 8 Functional Block Description 18 Functional Block Diagram 17 Functional Description 10 Preliminary Specification O Operating Range 77 Overview 8 P ...

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