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TDA4472 데이터시트(PDF) 6 Page - TEMIC Semiconductors |
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TDA4472 데이터시트(HTML) 6 Page - TEMIC Semiconductors |
6 / 14 page TDA4472-M TELEFUNKEN Semiconductors Rev. A2, 15-Oct-96 Preliminary Information 6 (14) Electrical Characteristics VS = +5 V, Tamb = +25°C; reference point Pin 4 (9, 16), unless otherwise specified Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit DC-supply Pin 23 Supply voltage – SDIP28 – SO28 VS VS 4.5 4.5 5.0 5.0 9.0 5.5 V V Supply current IS 85 93 mA VIF-input Pin 6-7 Input sensitivity, (RMS value) For FPLL locked vin 80 120 mVRMS Input impedance See note 1 Rin 1.2 k W Input capacitance See note 1 Cin 2 pF VIF-AGC Pins 8 and 15 IF gain control range Gv 60 65 dB AGC capacitor Pin 8 CAGC 2.2 mF Black level capacitor Pin 15 CBL 100 nF Switching voltage: VCR mode See note 2 Vsw 4.0 V Switching current: VCR mode See note 2 Isw 50 mA Tuner-AGC Pins 10 and 11 see note 3 Available tuner-AGC current Itun 1 2 4 mA Allowable output voltage V11 0.3 13.5 V IF slip – tuner AGC Current Itun: 10 to 90% ∆GIF 8 10 dB IF input signal for minimum take over point Rtop = 10 k W (Vtop = 4.5 V) vin 4 mV IF input signal for maximum take over point Rtop = 0, (Vtop = 0.8 V) vin 40 mV Variation of the take over point by temperature ∆Tamb = 55°C VIF-AGC: Gv = 46 dB ∆vin 2 3 dB FPLL and VCO Pins 18, 20, 21 and 26 see note 4 Max. oscillator frequency For carrier generation fvco 70 MHz Vision carrier capture range fvco = 38.9 MHz, Cvco = 8.2 pF ∆fcap ±1.5 ±2 MHz Oscillator drift (free running) as function of temperature See note 5, ∆Τamb = 55°C, Cvco = 8.2 pF, fvco = 38.9 MHz ∆f/∆T –0.3 % Video output Pin 12 Output current – source – sink ±I12 2 5 3 mA mA Output resistance See note 1 Rout 100 W Video output signal Peak-to-peak value vo,vid 1.8 2.0 2.2 Vpp Difference of the video signals Between B/G and L ∆vo,vid 10 % Sync. level Vsync 1.2 V Zero carrier level for neg. modulation, ultra white level V13 = VS V8 = 3 V VDC 3.4 V Zero carrier level for pos. modulation, ultra black level V13 = 0 V8 = 3 V VDC 1.15 V Supply voltage influence on the ultra white and ultra black level ∆V/V 1 %/V Video bandwidth (–3 dB) RL ≥ 1 k W, CL ≤ 50 pF B 6 8 MHz |
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