1. Digital Cable Tuner[Model :TDMK-G5XXD] User’s Manual (TUA6030 + TDA10021H) May 2004 Evaluation kit TDMK-G5XXD

2. Digital Cable Tuner[Model :TDMK-G5XXD] 1/8 Application Note Power supply 7 V5 V 3.3V Reg. 3.3 V

3. Digital Cable Tuner[Model :TDMK-G5XXD] 2/8 Software window for control 3 2 1 STEP 1 Execute program file TDMK_TDA10021. Then you can see the picture on screen as above it STEP 2 parameter 3 2 1 Select modulation ( 16QAM, 32QAM, 64QAM, 128QAM, 256QAM ) Input RF frequency Input Symbol rate. (1 ~ 7.2 Mbaud) STEP 3 Push RESET button on the TEST board, and then Click TUNER RUN button Order 4 4 Select MPEG output

4. Digital Cable Tuner[Model :TDMK-G5XXD] 3/8 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. Digital Cable Tuner[Model :TDMK-G5XXD] 4/8 The flow chart of control program LGIT_QAM_RUN() Tunerwrite() ChipInit() WriteSymbolRate((U32)(m_fSymbolrate*1e6)) WriteQam(ubQAM) RunAlgo((U32)(m_fSymbolrate*1e6),&foundgain, ubAutoGain, ubAutoSpecInv) OnMon() YES No Is the TDA10021 locked ? YES No Is the PLL IC locked? Data Found

6. Digital Cable Tuner[Model :TDMK-G5XXD] 5/8 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. Digital Cable Tuner[Model :TDMK-G5XXD] 6/8 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. Digital Cable Tuner[Model :TDMK-G5XXD] 7/8 MPEG Output Parallel Transport Stream Output Mode A Parallel Transport Stream Output Mode B Serial Transport Stream Output Mode