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User’s Manual (TUA6030 + TDA10021H)

TDMK-G5XXD. Evaluation kit. User’s Manual (TUA6030 + TDA10021H). May 2004. QAM Demod IC. PLL IC. PLL I2C. CLOCK. PLL I2C. DATA. SCL. SDA. 21. 22. 29. 30. 17. 18. 19. 20. 23. 24. 25. 26. 27. 28. 1. 2. 3. 4. 5. 6. 10. 11. 12. 13. 14. 15. 16. 8. 7. 9. .

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User’s Manual (TUA6030 + TDA10021H)

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  1. TDMK-G5XXD Evaluation kit User’s Manual (TUA6030 + TDA10021H) May 2004

  2. QAM Demod IC PLL IC PLL I2C CLOCK PLL I2C DATA SCL SDA 21 22 29 30 17 18 19 20 23 24 25 26 27 28 1 2 3 4 5 6 10 11 12 13 14 15 16 8 7 9          RESET 4.7K 100  100F 100F 100F MPEC T/S Demux 3.3 V 100F 5 V 3.3 V 5 V 5 V SDA SCL Application Note 3.3 V 3.3V Reg. Power supply 5 V 7 V

  3. Software window for control 3 1 2 4 STEP 1 Execute program file TDMK_TDA10021. Then you can see the picture on screen as above it STEP 2 parameter Order Select modulation ( 16QAM, 32QAM, 64QAM, 128QAM,256QAM ) 1 Input Symbol rate. (1 ~ 7.2 Mbaud) 2 Input RF frequency 3 Select MPEG output 4 STEP 3 Push RESET button on the TEST board , and then Click TUNER RUN button

  4. Software • The software is divided in six functions: • TunerRun() ; • Set RF and IF frequency • Set PLL IC address, charge pump, step size and band selection • Tuner PLL IC lock check • ChipWriteInit(); • Demodulator IC register Initialization • WriteSymbolRate((U32)(m_fSymbolrate*1e6)); • Set Symbol rate : 1 ~ 8 Mbaud • WriteQam(ubQAM); • Set QAM Modulation(4, 16, 32, 64, 128, 256) • RunAlgo((U32)(m_fSymbolrate*1e6),&foundgain, ubAutoGain, ubAutoSpecInv); • RF and IF AGC control • OnMon(); • Demodulator IC lock check • Register value and AGC check • BER calculation

  5. Tunerwrite() No Is the PLL IC locked? YES ChipInit() WriteSymbolRate((U32)(m_fSymbolrate*1e6)) WriteQam(ubQAM) RunAlgo((U32)(m_fSymbolrate*1e6),&foundgain, ubAutoGain, ubAutoSpecInv) OnMon() No Is the TDA10021 locked ? YES Data Found The flow chart of control program • LGIT_QAM_RUN()

  6. Description of the software window • TUNER PLL CONTROL SESSION • RF FREQUENCY • Set the RF input signal frequency in MHz • TDMK-G5XXD TUNER CONTROL SESSION • SYMBOL RATE • Set the symbol rate for the channel decoder in Msps • MODULATION • Set the QAM format(4, 16, 32, 64 or 256QAM) • SPECT.INVER. • Automatic search for spectral inversion or force the spectral inversion • GAIN • Force the digital gain in the Demodulator IC or let the algorithm find the optimum value • RF AGC/IF AGC • Value between 0 and 255 indicating the tuner AGC level. 0 = to much power/255 = not enough power

  7. Description of the software window • Display • CHANNEL BAND • channel band status (VHF LOW, VHF HIGH, UHF) • LOCK STATUS • PLL IC lock • Carrier lock • Frame lock • AGC STATUS • RF AGC, IF AGC range • REGISTER STATUS • Demodulator IC Register value • BER Depth • Defines over many symbols the BER is measured. • BER • BER indication after the demodulation(RS decoder input)

  8. MPEG Output • Parallel Transport Stream Output Mode A • Parallel Transport Stream Output Mode B • Serial Transport Stream Output Mode

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