General: Does TDA5100 5200 comply with communication regulations there

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General: Does TDA5100 5200 comply with communication regulations there

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General: Does TDA5100 5200 comply with communication regulations there certificate available correct design will comply with rules 220; AppNotes page 4-7; page 4-27 Does chipset support frequencies other than 315, 433, MHz. engineering purposes other frequencies like 304, 345, maybe used, please your local representative Infineon guarantees these frequencies over volume production chipset analog modulation Yes, both TDA5100 TDA5210 used analog (voice) radio. only additional part needed varactor diode TDA5100. These kits have different crystal transmitter receiver. "Bill Material" suggest different crystals, there reason this since frequencies basically same. Transmitter: ref. frequency (freq. crystal oscillator) multiplied factor (depending CSEL different crystals) frequency, which directly case 868MHz) "2:1-divider" power amplifier. Required reference frequency frequency divided Receiver: ref. frequency (freq. crystal oscillator) multiplied factor (depending CSEL different crystals) frequency, which directly case 868MHz) "2:1-divider" mixer. This frequency 10.7MHZ above (high injection) below (low injection) received signal 10.7MHz. example: Required ref. frequency (RF-10.7MHz) divided Required ref. frequency (RF-10.7MHz) divided also Spec. Chapt. "Quartz Frequency calculation" principle crystals from manufacturer with regard pulling sensitivity (ratio C0+CL; should receiver achieve small deviation transmitter case FSK), series resistor, tolerances freq. range 868MHz; injection freq. range 434MHz; injection
also "Spread Sheet" just frequency error temperature calculations located section 4-16 TDA5200 application note. also similar data using crystal tolerance excel spread sheet from ROM. Which numbers should believe? they both cover same temperature range? system design 433.92 MHz, spread sheet yields receiver frequency error application note calculates ppm. application note, dominant component frequency error internal inductance oscillator. This range over +/-102 ppm. calculation Application Note wrong based worst case conditions. "worst case values" results "worst-worst-.case", which probability almost zero. sufficient reliability recommended calculate "3-Sigma"-values, which done "Speadsheet" Stepp.
TDA52XX: What minimum offset voltage between slicer inputs, (SLP) (SLN), make slicer output (DATA) toggle What about evolution this offset voltage with temperature? What offset value room temperature? minimum offset voltage between data slicer inputs, which makes data slicer output toggle easy defined. summary Data slicer dynamic hysteresis (approx. 0.5mV 50mV), static Offset external (using RC-term) results from current from +14nA dependence temperature small. offset voltage smaller than noise voltage. That results output from data slicer toggle over noise. constant output necessary peak detector (pin 26), stand alone with combination with RC-term. Caution: duty cycle, possible adaptation data filter (steeper ramps). there isolation problem between output mixer input TDA5201 that place filter between them, will full benefits filter? filter placed between mixer, received good results sensitivity good results strong signal performance. actually LNA/Mixer isolation problem causing poor strong signal performance strong signal performance? case placed front gets lower overall sensitivity insertion loss filter, interference rejection optimal, though. This measurement results
where interferer's level maximum (e.g. +8dBm interference level -60dBm wanted signal level) yield first errors. case placed between mixer, however, sensitivity slightly increased decreased "noise figure" mixer matter fact mixer sees less image noise noise figure mixer itself course remains same) interference rejection good case above it's about below performance mentioned above. strong signal performance (wanted signal) remains same without SAW, however possible cover whole 300MHz 322MHz range receive frequency 315MHz (TDA5201, TDA5211). Checking measurement results currently available simulation data have hand tell that frequency band which guarantee operation TDA5201 TDA5211 goes down only 310MHz. Frequencies below 310MHz could only covered with redesign. maximum operating frequency 345MHz low-side injected). frequency data filter adjusted?
4QRf
(=C14 accordance with ,,Bill Material") (=C12 accordance with ,,Bill Material") according Spec, March 2000; Page Where case Bessel filter: thus case Butterworth filter: thus a=1.3617; Q=0.577 b=0.618
a=1.141; Q=0.71
Spec, March 2000; chapter ,,Data Filter Design" Dimensioning matching network filter input? attachment below:
Acrobat Document
TDA520X specific questions: there connecting TDA5200 that noise suppressed output when nothing received input TDA520X have built-in hysteresis data comparator. Only external comparator with hysteresis cure problem. TDA521X will have built-in comparator with 30mV hysteresis. TAGC left open, what will gain value? pin4 TAGC left open gain max. this case, could left open recommended that connected
function TDA5200 used, external capacitor necessary TAGC, external capacitor necessary. Also, THRES, could left open recommended that connected 3VOUT, TDA5201 application where would switch between crystals, what crystal startup time lock time when switching between crystals? crystal startup dominating factor microsec typ. lock time related bandwidth equals 1/150kHz microsec.
What sensitivity what error rates expect
input level defined? average output power from generator (true ASK).
filter input TDA5200 required That depends system requirements concerning out-of-band blocking image rejection. general answer therefore possible. application note filters from available:
TDA5200&SAWF.pdf
TDA521x specific questions: upgrade TDA5200 evaluation board TDA5210 board?
Replace TDA5200 with TDA5210. Short (MSEL) GND. (FSK mode) Exact generation from voltage provided (THRES): values shall approximately 600kOhm e.g. R4=240k, R5=360k Optional: C18=47nF from (THRES) better Demodulator (+3dB) boost charge (Release A2/B2) capacity with 200uA startup phase (approx. 1ms). Adaptation network lowest data frequency Reason: data path AC-coupled. Lowest permissive data frequency mode:
Note: Factor Release
Example: R1=100kOhm C13=47nF fld=1.088kHz resulting startup time =4.7ms
What error rates expect with TDA5210
What minimum offset voltage between slicer inputs, (SLP) (SLN), make slicer output (DATA) toggle What about evolution this offset voltage with temperature What offset value room temperature minimum offset voltage between data slicer inputs, which makes data slicer output toggle easy defined. summary Dataslicer dynamic hysteresis (approx. 0.5mV 50mV), static offset externaly (using RC-term) results from current from +14nA dependence temperature small. offset voltage smaller than noise voltage. That results output from dataslicer toggle over noise. constant output necessary peakdetector (pin 26), stand alone with combination with RC-term. Caution: duty cycle, possible adaption datafilter (steeper ramps). TDA5210 FSK-Mode 1kHz square wave deviation 25kHz. There divergence between modulation signal transmitter (upper curve) demodulated signal (below). Why?
TEK00002.TIF
DC-feedback from data filter output demodulator (corresponding coupling) yields also lower frequency (see spec f2), which decided capacitor resistor between frequency TDA5210_A1 using resistor (mentioned above) 100k capacitor 47nF round about 1390Hz. Increasing capacitor resistor value solves problem. redesign realized TDA5210_A2, results frequency r.a. 485Hz, using same resistor capacitor values mentioned above. capacitor absolutely necessary? There capacitor provided TDA5200. This cap. also inserted TDA5210 eval board nevertheless works. right that capacitor isn't necessary TDA5200. TDA5210_ cap. only used blocking cap. supply voltage demodulator resulting (only) lower phase noise. TDA5210_A2: called ,,precharge circuit" (for cap. inserted. Therefore capacitor only used blocking cap. also required function precharge circuit. Please take note that higher value cap. than recommended Spec January 2000 permitted. capacitor only responsible function precharge circuit. value capacitor chosen that T2>T3. Spec March 2000, chapter ,,Principle Precharge Cicuit".
TDA5210_A3:
TDA5100: R1/R3/C5 pass filter input mandatory What purpose this filter? useful limiting output spectrum band width? pass filter data input mandatory, recommended smooth slopes data signal limiting output spectrum. necessary, connect pin2 power detect pin6 data in/power enable. not, necessary. mode pin7 acts power down pin. necessary Does TDA5100 work below 2.1V TDA5100 designed used with single cell lithium battery. Using TDA5100 below 2.1V, example down 1.8V cannot guaranteed this time. operate lower voltages room temperature, only operating limits described latest specification will guaranteed Infineon.
Using TDA5100 spurious quartz frequency observed, fulfill nevertheless ETS300-220 specification what happens power amplifier external transistor) applications without external power amp: know that margin limit this very stable good series production. spurious further decreased resistor approx. ohms added series from crystal. applications with external power amp: recommend crystal 6.78 MHz, instead 13.56 MHz, that lower spurious frequency higher than MHz. frequencies higher than limit applies. frequencies above 1GHz limit -30dBm.
there internal filtering TDA5100 family Power output? filtering done with external resonant antenna circuitry.
TDA5201 application where would switch between crystals, what crystal startup time lock time when switching between crystals? crystal startup dominating factor microsec typ. lock time related bandwidth equals 1/150kHz microsec.

General: Does TDA5100 5200 comply with communication regulations there

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