TDA4474 TELEFUNKEN Semiconductors Multistandard Video-IF and Quasi Parallel Sound Processing Description The TDA4474 is an integrated bipolar circuit for full multistandard video/sound IF (VIF/SIF) signal processing in TV/VCR and Multimedia applications. The circuit processes all TV video IF signals with negative modulation (e.g. B/G standard), positive modulation (e.g. L standard) and the AM, FM/NICAM sound IF signals. Four IF inputs (2 x VIF plus 2 x SIF) and the common pinning with TDA4471 gives flexibility to design a universal IF module for various applications. Features 5V supply voltage; low power consumption Alignment–free quasi parallel sound (QPS) mixer Active carrier generation by FPLL principle (frequency–phase–locked–loop) synchronous demodulation for true Very linear video demodulation, good pulse response and excellent intermodulation figures VCO circuit is operating on picture carrier frequency, the VCO frequency is switchable for the L’ mode Alignment–free AFC without external reference circuit, polarity of the AFC curve is switchable VIF–AGC for negative modulated signals (peak sync detection) and for positive modulation (peak white/black level detector) Tuner AGC with adjustable take over point Rev. A1: 17.08.1995 for FM/NICAM sound IF signals Intercarrier output signal is gain controlled (necessary for digital sound processing) Complete alignment–free AM demodulator with gain controlled AF output Separate SIF–AGC with average detection Parallel operation of the AM demodulator and QPS mixer (for NICAM–L stereo sound) Four IF inputs (2 x VIFin and 2 x SIFin) Package and relevant pinning is compatible with the TDA4471; simplifies the design of an universal IF module Package: 30 pin shrink–dual–inline–plastic (SDIP30) Preliminary Information 1 (17) TDA4474 TELEFUNKEN Semiconductors Loop filter Offset comp. (optional) Ï Ï VCO ÏÏ ÏÏ Ï ÏÏ ÏÏ ÏÏ Ï ÏÏ 28 20 0° 90° FPLL ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ Ï ÏÏ Ï ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ 23 22 VCO + phase shift L’ switch and VIF input switch 16 Control VIF 2 AFC VIF amp 6 Video Video det. 8 15 AGC (VIF) 17 Standard Standard switch CBL 13 Tuner 12 Take over point 29 SIF 2 30 AFC 14 7 CAGC AFC switch 24 11 VIF 1 ÏÏ Ï ÏÏ ÏÏ ÏÏ ÏÏ ÏÏ Ï ÏÏ Ï ÏÏ Ï ÏÏ ÏÏ ÏÏ ÏÏ 21 10 25 Tuner AGC Supply FM det. VS 19 CRef 26 Intercarrier (FM / NICAM) SIF amp SIF input switch 3 1 SIF 1 2 5 ÏÏ ÏÏ ÏÏ 27 AGC (SIF) AM det. CAGC AF (AM) 4,9,18 94 7901 Figure 1. Block diagram 2 (17) Preliminary Information Rev. A1: 17.08.1995 TDA4474 TELEFUNKEN Semiconductors Pin Description Vi,SIF1 1 30 Vi,SIF2 Vi,SIF1 2 29 Vi,SIF2 VSW 3 28 Rcomp GND 4 27 Vo,AM CAGC 5 26 Vo,FM Vi,VIF1 6 25 VS Vi,VIF1 7 24 VAFC CAGC 8 23 GND 9 22 VVCO VVCO Vi,VIF2 10 21 VSW Vi,VIF2 11 20 LF Rtop 12 19 CRef Itun 13 18 GND Vo,vid 14 17 CBL 16 VSW(L’) VSW(stand.) 15 ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ Á ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ Pin 1, 2 3 4 5 6, 7 8 9 10, 11 12 13 14 15 16 17 18 19 20 21 22, 23 24 25 26 27 28 29, 30 Symbol Vi,SIF1 VSW GND CAGC Vi,VIF1 CAGC GND Vi,VIF2 Rtop Itun Vo,vid VSW VSW CBL GND CRef LF VSW VVCO VAFC VS Vo,FM Vo,AM Rcomp Vi,SIF2 Function SIF1 input (symmetrical) SIF input selector switch Ground SIF–AGC (time constant) VIF1 input (symmetrical) VIF–AGC (time constant) Ground VIF2 input (symmetrical) Take over point, tuner AGC Tuner AGC output current Video output Standard switch L’–/VIF input selector switch Capacitor – black level detector Ground Internal reference voltage Loop filter AFC switch VCO circuit AFC output Supply voltage Intercarrier output AF output – AM sound Offset compensation SIF2 input (symmetrical) 94 8680 Figure 2. Pin description Rev. A1: 17.08.1995 Preliminary Information 3 (17) TDA4474 TELEFUNKEN Semiconductors Circuit Description Vision IF Amplifier The video IF signal (VIF) is fed through a external SAW filter to one of the two VIF inputs (Pins 6–7 or 10–11). The selection of VIF inputs is controlled by Pin 16 in combination with the standard switch. With a minimal external expense it is possible to switch between two different SAW filters. Both VIF inputs features excellent cross–talk attenuation and an input impedance which is independent from the switching condition. The VIF amplifier consists of three AC–coupled amplifier stages. Each differential amplifier is gain controlled by the automatic gain control (VIF–AGC). Output signal of the VIF amplifier is applied to the FPLL carrier generation and the video demodulator. Tuner– and VIF–AGC At Pin 8 the VIF–AGC charges/discharges the AGC capacitor to generate a control voltage for setting gain of VIF amplifier and tuner in order to keep the video output signal at a constant level. Therefore in case of negative modulated signals (e.g. B/G standard) the sync level of the demodulated video signal is the criterion for a fast charge/discharge of the AGC capacitor. For positive modulation (e.g. L standard) the peak white level of video signal controls the charge current. In order to reduce reaction time for positive modulation, where a very large time constant is needed, an additional black level detector (Pin 17) controls the discharge current in the event of decreasing VIF input signal. The AGC voltage is transferred to an internal control signal and fed to the tuner AGC to generate the tuner AGC current at Pin 13 (open collector output). Take over point of the tuner AGC can be adjusted at Pin 12 by a potentiometer or an external DC voltage (from interface circuit or microprocessor). FPLL, VCO and AFC The FPLL circuit (frequency phase locked loop) consists of a frequency and phase detector to generate control voltage for the VCO tuning. In the locked mode the VCO is controlled by the phase detector and in unlocked mode the frequency detector is superimposed. The VCO operates with an external resonance circuit (L and C parallel) and is controlled by internal varicaps. The VCO control voltage is also converted to a current and represents the AFC output signal at Pin 24. With the AFC switch (pin 21) three operating conditions of the AFC are possible: AFC curve ”rising” or ”falling” and AFC ”off”. A practicable VCO alignment of the external coil is the adjustment to zero AFC output current at Pin 24. At centre frequency the AFC output current is equal to zero. Furthermore, at Pin 16, the VCO centre frequency can be 4 (17) switched for setting to the required L’ value This function is active when ”L mode” is selected by the standard switch. The optional potentiometer at Pin 28 allows an offset compensation of the VCO phase for improved sound quality (fine adjustment). Without a potentiometer (open circuit at Pin 28) this offset compensation is not active. The oscillator signal passes a phase shifter and supplies the in–phase signal (0) and the quadrature signal (90) of the generated picture carrier. Video Demodulation and Amplifier The video IF signal, which is applied from the gain controlled IF amplifier, is multiplied with the inphase component of the VCO signal. The video demodulator is designed for low distortion and large bandwidth. The demodulator output signal passes an integrated low pass filter for attenuation of the residual vision carrier and is fed to the video amplifier. The video amplifier is realized by an operational amplifier with internal feedback and 8 MHz bandwidth (–3dB). A standard dependent DC level shift in this stage delivers the same sync level for positive and negative modulation. An additional noise clipping is provided. The video signal is fed to VIF–AGC and to the video output buffer. This amplifier with 6dB gain offers easy adaption of the sound trap. For nominal video IF modulation the video output signal at Pin 14 is 2 V (peak to peak value). Sound IF Amplifier and SIF–AGC The SIF amplifier is nearly identical with the 3–stage VIF amplifier. The first amplifier stage exists twice and is switchable by a control voltage at Pin 3. Therefore with a minimal external expense it is possible to switch between two different SAW filters. Both SIF inputs features excellent cross–talk attenuation and an input impedance which is independent from the switching condition. Each differential amplifier is controlled by the automatic gain control for the sound IF path (SIF–AGC). Output signal of the SIF amplifier is applied to the mixer for FM/NICAM signals and the demodulator for AM sound signals. The SIF–AGC is related to the average level of AM– or FM–carrier and controls the SIF amplifier to provide a constant SIF signal to the AM demodulator and QPS mixer. AM Demodulator The alignment–free AM demodulator is realized by a synchronous detector. The modulated SIF signal from the Preliminary Information Rev. A1: 17.08.1995 TDA4474 TELEFUNKEN Semiconductors SIF amplifier output is multiplied in phase with the limited SIF signal (AM is removed). The AF signal of the demodulator output is fed to the output amplifier and to the SIF–AGC. For all TV standards with negative video modulation (e.g. B/G standard) the AF output signal (Pin 27) is switched off by the standard switch. Quasi–Parallel–Sound (QPS) mixer The QPS mixer is realized by a multiplier. The SIF signal (FM or NICAM carrier) is converted to the intercarrier frequency by the regenerated picture carrier (quadrature signal) which is provided from the VCO. The intercarrier signal is fed via an output amplifier to Pin 26. L’ Switch and VIF Input Selection For positive modulated signals (L/L’ standard) Pin 16 works as L’ switch. With a control voltage the VCO frequency can be switched for setting to the required L’ value (L’ standard). Also a fine adjustment of the L’-VCO centre frequency is possible by a potentiometer. The L’ switch is only active for positive modulated video IF signals (standard switch in L mode). In this mode the video IF input 2 (VIF2) is forced by the standard switch. The possibility to select VIF1 input is given by connecting VIF2 input (Pin 10 or 11) via 10 k resistor to ground. If negative modulation (B/G mode) is selected pin 16 operates as an input selection switch for the two VIF inputs. Standard Switch To have equal polarity of the video output signal the polarity can be switched in the demodulation stage in accordance with the TV standard. Additional a standard dependent DC level shift in the video amplifier delievers the same sync level. Parallel the correct VIF–AGC is selected for positive or negative modulated VIF signals. In case of negative modulation (e.g. B/G standard) the AM output signal is switched off. If the standard for positive modulation (L standard) is selected the AM demodulator and QPS mixer is active. This condition allows a parallel operation of the AM sound signal and the NICAM–L stereo sound. AFC Switch The AFC output signal at Pin 24 can be controlled by a switching voltage at Pin 21. It is possible to select an AFC output signal with rising– or falling AFC curve and to switch off the AFC. Internal Voltage Stabilizer The internal bandgap reference ensures constant performance independant of supply voltage and temperature. Absolute maximum values Reference point pin 4 (9, 18), unless otherwise specified ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ Á ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ Parameters Supply voltage Pin 25 Supply current Pin 25 Power dissipation, Vs = + 9 V Output currents Pin 14, 26, 27 External voltages Pins 1, 2, 5–8, 10–12, 14, 16, 19, 20, 26–30 Pins 17, 22, 23 Pin 13 Pins 3, 15, 21, 24 Junction temperature Storage temperature Electrostatic handling *) all pins Symbol Vs Is P Iout Vext Value 9.0 85 765 5 + 4.5 Unit V mA mW mA V Tjunc Tstor VESD + 3.5 + 13.5 Vs +125 –25 to +125 300 V V V °C °C V *) Equivalent to discharging a 200 pF capacitor through a 0 resistor Operating Range ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ Parameters Supply voltage range Ambient temperature Rev. A1: 17.08.1995 Pin 25 Symbol Vs Tamb Preliminary Information Value 4.5 to 9.0 0 to +85 Unit V °C 5 (17) TDA4474 TELEFUNKEN Semiconductors Thermal Resistance ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ Parameters Thermal resistance: junction–ambient when soldered to PCB Symbol Rthja Value 55 Unit K/W Electrical Characteristics Vs = +5V, Tamb = +25°C; reference point pin 4 (9, 18), unless otherwise specified ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Parameters Test Conditions / Pins Symbol DC–supply: Pin 25 Supply voltage Supply current: VIF–inputs: Input sensitivity, RMS value Input impedance Input capacitance VIF–AGC: IF gain control range AGC capacitor at Pin 8 Black level capacitor at Pin 17 Tuner–AGC: Available tuner–AGC current Allowable output voltage IF slip – tuner AGC Vs Is Pins 6–7, 10–11 vin IF input signal for minimum take over point IF input signal for maximum take over point Variation of the take over point by temperature FPLL and VCO: Max. oscillator frequency Vision carrier capture range Oscillator drift (free runing) as function of temperature 6 (17) for FPLL locked see note 1 see note 1 Min. Typ. Max. Unit 4.5 5.0 75 9.0 85 V mA 80 120 µV Rin Cin 1.2 2 k pF 65 2.2 100 dB µF nF Pins 8, 17 video output: 2 V Gv CAGC CBL 60 Pins 12, 13 see note 3 Itun 1 current Itun: 10% to 90% Rtop = 10 k (Vtop= 2.5 V) Vout GIF 2 4 mA 8 13.5 10 V dB 4 mV 0.3 vin Rtop = 0 (Vtop = 0.8 V) vin Tamb = 55°C VIF–AGC: Gv = 46 dB vin Pins 20, 22, 23, 28 for carrier generation fvco fvco = 38.9 MHz fcap Cvco = 6.8 pF see note 3 f/T Tamb = 55°C, Cvco = 6.8 pF, fvco = 38.9 MHz 40 mV 2 70 1.5 Preliminary Information 3 dB MHz MHz 2 –0.3 % Rev. A1: 17.08.1995 TDA4474 TELEFUNKEN Semiconductors Electrical Characteristics Vs = +5V, Tamb = +25°C; reference point pin 4 (9, 16), unless otherwise specified ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Parameters Video output: Output current – source – sink Output resistance Video output signal Difference of the video signals Sync level Zero carrier level for neg. modolation (Ultra white level) Zero carrier level for pos. modulation (Ultra black level) Supply voltage influence on the ultra black– and ultra white level Video bandwidth (–3dB) Video frequency response over the AGC range Differential gain error Differential phase error Intermodulation 1.07MHz Video signal to noise ratio Residual vision carrier fundamental wave 38.9 MHz and second harmonic 77.8 MHz Lower limiting level Upper limiting level Ripple rejection Rev. A1: 17.08.1995 Test Conditions / Pins Pin14 Symbol Min. Typ. Iout 2 Max. Unit 5 3 100 2.2 10 mA mA see note 1 peak to peak value between B/G and L Rout vo,vid vo,vid V8 = 3 V Vsync VDC 1.2 3.4 V V V8 = 3 V VDC 1.15 V V/V 1 %/V 8 MHz dB RL 1 k, CL 50 pF B B 1.8 6 2.0 DG DP see note 4 weighted, CCIR–567 below sync level above ultra white level Pin 25, 14 see note 1 IM S/N vres1 Vlim1 Vlim2 RR 2.0 52 56 2 2 60 60 2 400 600 35 Preliminary Information 5 5 10 V % % deg dB dB mV mV mV dB 7 (17) TDA4474 TELEFUNKEN Semiconductors Electrical Characteristics Vs = +5V, Tamb = +25°C; reference point pin 4 (9 ,16), unless otherwise specified ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁÁ Á ÁÁÁ Á ÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Parameters Test Conditions / Pins Symbol Standard switch: Pin 15 Control voltage for mode 1: see note 5 Vsw1 neg. modulated video–IF signals and FM/NICAM sound Control voltage for mode 2: Vsw2 pos. modulated video–IF signals and AM / L–NICAM sound Switching current Isw AFC output: Pin 24 Control slope I/f Frequency drift by temper- related to the picture carrier ature frequency Output voltage upper VAFC limit lower limit Output current IAFC AFC switch: (pin 21) Control voltage: AFC Vsw ”off” see note 6 AFC curve rising AFC curve falling Switching current Isw L’ and VIF input selector switch: Pin 16 see note 7 Control voltage: VIF standard switch in mode 1 Vsw1 input 2 active (negative modulation) VIF input 1 active Control voltage: L’– standard switch in mode 2 Vsw2 VCO frequency (positive modulation) L –VCO frequency Switching current Vsw = 0 Isw 8 (17) Min. Typ. Max. Unit 2.0 Vs V 0 0.8 V 100 0.7 0.25 A 0.6 Vs–0.4 A/kHz % V 0.4 V mA 0.8 2.5 Vs V V V 0.2 0 1.5 3.5 100 A 0 3.4 3.0 4.5 V V 0 3.4 3.0 4.5 V V 700 A Preliminary Information Rev. A1: 17.08.1995 TDA4474 TELEFUNKEN Semiconductors Electrical Characteristics Vs = +5V, Tamb = +25°C; reference point pin 4 (9, 18), unless otherwise specified ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Parameters SIF inputs: Input sensitivity, RMS value Input impedance Input capacitance SIF – AGC: IF gain control range AGC capacitor Intercarrier output: DC output voltage Output resistance Sound IF output voltage, RMS value Weighted signal to noise ratio: (CCIR 468) Black screen: Channel 1/2 Grid pattern: Channel 1/2 Grey screen 50%: Channel 1/2 Ripple rejection, Rev. A1: 17.08.1995 Test Conditions / Pins Symbol Pins 1–2, 29–30 output signal: –3dB vin see note 1 see note 1 Min. Rin Cin Typ. Max. Unit 80 120 V 1.2 2 k pF 65 10 dB F 2 150 300 V mV 60/58 54/52 dB dB 60/57 dB dB Pin 5 Gv CAGC Pin 26 see note 8 VDC see note 1 Rout vin = 10 mV vout 5.5 MHz output voltage Ref .signal: vin =10 mV; FM dev. = 27 kHz fmod = 1 kHz; tested with the double FM demod. U2860B; B/G mod. VIF signal S/N S/N Pins 25, 26 see note 1 S/N RR 60 35 Preliminary Information 9 (17) TDA4474 TELEFUNKEN Semiconductors Electrical Characteristics Vs = +5V, Tamb = +25°C; reference point 4 (9 ,16), unless otherwise specified ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Notes: Parameters AF output – AM: DC output voltage Output resistance AF output voltage, RMS value Total harmonic distortion Signal to noise ratio Ripple rejection SIF input selector switch: Control voltage: SIF input 1 active SIF input 2 active Switching current Test Conditions / Pins Symbol Pin 27 see note 9 VDC see note 1 Rout m = 54 % voAF m = 54 % fmod = 1kHz, 12.5kHz Reference: m = 54%, fmod = 1 kHz, 22 kHz low pass filter Pins 25, 27 see note 1 Pin 3 see note 10 Min. Typ. Max. 2.2 150 500 THD 1 S/N 65 RR 28 VSW 2.0 V mV 2 % dB dB 0 ISW Unit Vs V 0.8 V A 100 1. This parameter is given as an application information and not tested during production. 2. Adjustment of turn over point (delayed tuner AGC) with external resistor Rtop or external voltage Vtop. 3. The oscillator drift is related to picture carrier frequency, at external temperature–compensated LC circuit 4. (1.07) = 20 log (4.43 MHz component/1.07 MHz component); (1.07) value related to black–white signal input signal conditions: picture carrier 0 dB colour carrier –6 dB sound carrier –24 dB 5. Without external control voltage at pin 15 (open circuit) the IC automatically operates in mode : negative modulated video IF and FM/NICAM sound signals Voltage at Pin 15 (standard switch) Selected standard (mode) 6. ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ 0 – 0.8 V 2.0V – Vs (or Pin 15 open) mode 1 (B/G standard) VIF: neg. modulation SIF: FM/ NICAM mode 2 (L standard) VIF: pos. modulation SIF: AM + NICAM Without control voltage at Pin 21 (open circuit) the falling AFC curve is automatically selected Voltage at Pin 21 (AFC switch) AFC function 10 (17) 0 – 0.8 V 1.5 – 2.5 V AFC switched OFF AFC curve rising Preliminary Information 3.5 V – Vs (or pin 21 open) AFC curve falling Rev. A1: 17.08.1995 TDA4474 TELEFUNKEN Semiconductors 7. Without control voltage at Pin 16 (open circuit) the L’ switch is not active. Standard switch, Pin 15 L’/VIF input switch, Pin 16 Ext. voltage at VIF input 2 Pin 10 or 11 Modulation Standard Active VIF input *) condition not useful Mode 1: neg. modulation (B/G) 2.0 V – Vs 3.4 V – 4.5 V 0 – 3.1 V (or Pin 16 open) Mode 2: pos. modulation (L) 0 – 0.8 V 3.4 V – 4.5 V (or Pin 16 open) 0 – 3.1 V ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ open 1V open 1V open 1V open 1V neg. B/G,... VIF1 neg. B/G,... VIF1 neg. B/G,... VIF2 *) *) *) neg. L VIF2 neg. L VIF1 neg. L’ VIF2 neg. L’ VIF1 8. Picture carrier PC = 38.9 MHz; sound carrier SC1 = 33.4 MHz, SC2 = 33.16 MHz; PC/SC1 =13 dB; PC/SC2 = 20 dB; PC unmodulated (equivalent to sync peak level) 9. Sound carrier SC = 32.4 MHz, modulated with fmod = 1 kHz, m = 54 %; vin = 10 mV 10. Without control voltage at Pin 3 (open circuit) the SIF input 1 is automatically selected AF (AM) SIF 2 Intercarrier (FM/NICAM) AFC AFC switch +VS Loop comp. Loop filter LVCO 6.8 pF 10 kW 150 W CRef CVCO 470 nF 30 29 28 L’ and VIF input switch Black level 27 26 25 24 23 22 2.2 mF 470 nF 21 20 19 18 10 11 12 13 17 16 14 15 94 9293 TDA4474 1 2 3 4 6 5 7 8 SIF 1 10 kW 2.2 mF 10 mF SIF Input switch 9 Standard switch (neg/pos) AGC (VIF) AGC (SIF) VIF 1 VIF 2 Tuner delay Tuner AGC Video *) External L/C circuit (VCO: 38.9 MHz) with TOKO coil 7KN (9 turns, 0.12mm) Figure 3. Rev. A1: 17.08.1995 Test circuit Preliminary Information 11 (17) 12 (17) from SAW driver from SAW driver SAW: VIF 4 3 2 1 SIF input switch 10 nF 27 28 29 30 10 k W 6 25 10 mF AGC (SIF) 5 26 24 10 nF 23 6.8 pF 7 9 +12 V CVCO *) LVCO 22 2.2mF AGC (VIF) 8 TDA4474 10 nF 22 mF 470 nF 10 21 11 20 Loop filter 150 W AFC switch 12 19 13 18 Preliminary Information Tuner 10 k W 2.2 mF CRef Video 14 10 k W Standard switch S4 15 16 100 nF 17 CBL L’ / VIF input switch 95 9833 SAW: VIF SAW: FM SAW: AM Offset comp. 51 k W AFC 51 k W +5 V Intercarrier AF(AM) (FM/NICAM) TDA4474 TELEFUNKEN Semiconductors Figure 4. Basic application circuit Rev. A1: 17.08.1995 TDA4474 TELEFUNKEN Semiconductors Internal Pin Configuration 6 1, 29 7 2, 30 2 kW 2 kW 2 kW 2 kW 2.3 V 3V 20 kW 4.2 V 95 9831 95 9830 Figure 5. Sound IF inputs (Pins 1–2, 29–30) Figure 8. Video IF input 1 (Pins 6–7) 94 8525 3.5 V 60 kW 10 kW 3 8 94 8522 Figure 6. Input selector switch (Pin 3) Figure 9. VIF–AGC time constant (Pin 8) 10 5 2V 11 2 kW 2 kW 10 kW 10 kW 2.3 V 94 8523 Figure 7. 4.2 V SIF–AGC time constant (Pin 5) 95 9834 Figure 10. Rev. A1: 17.08.1995 Video IF input 2 (Pin 10–11) Preliminary Information 13 (17) TDA4474 TELEFUNKEN Semiconductors + 3.5 V 3.5 V 17 kW 7 kW 12 900 W 15.5 kW 15 14 kW 23 kW 95 9819 7 kW Figure 14. Standard switch (Pin 15) 95 9832 3.5 V Figure 11. Tuner AGC – take over point (Pin 12) 5 kW 16 3.2 V 95 9817 500 W 13 95 9820 Figure 15. Figure 12. L’/VIF input switch (Pin 16) Tuner AGC – output (Pin 13) 2.7 V 5 kW 14 17 2.6 mA 95 9821 95 9818 Figure 16. Figure 13. 14 (17) Black level capacitor (Pin 17) Video output (Pin 14) Preliminary Information Rev. A1: 17.08.1995 TDA4474 TELEFUNKEN Semiconductors 19 24 3.5 V 95 9822 Figure 17. 95 9826 Internal reference voltage (Pin 19) Figure 21. 20 AFC output (Pin 24) 100 W 26 1 mA 2.75 V 95 9823 Loop filter (Pin 20) Figure 18. 95 9827 Figure 22. 3.5 V Intercarrier output (Pin 26) 30 kW 21 27 100 W 10.5 kW 1.4 mA 95 9824 Figure 19. AFC switch (Pin 21) 95 9828 Figure 23. AF–AM output (Pin 27) 7 kW 7 kW 22 3.5 V 95 9829 10 kW 23 28 10 kW 95 9825 Figure 20. VCO (Pin 22–23) Figure 24. Rev. A1: 17.08.1995 VCO offset compensation (Pin 28) Preliminary Information 15 (17) TDA4474 TELEFUNKEN Semiconductors Dimensions in mm Package: SDIP30 94 9183 16 (17) Preliminary Information Rev. A1: 17.08.1995 TELEFUNKEN Semiconductors TDA4474 Ozone Depleting Substances Policy Statement It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances ( ODSs). The Montreal Protocol ( 1987) and its London Amendments ( 1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency ( EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively. TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized application, the buyer shall indemnify TEMIC against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423 Rev. A1: 17.08.1995 Preliminary Information 17 (17) This datasheet has been download from: www.datasheetcatalog.com Datasheets for electronics components.