Wireless Components Multistandard VIF-PLL TDA 6930 Version 1.0 Specification August 1999 Revision History: Current Version: 08.99 Previous Version:Data Sheet Page (in previous Version) Page (in current Version) Subjects (major changes since last revision) ABM(R), AOP(R), ARCOFI(R), ARCOFI(R)-BA, ARCOFI(R)-SP, DigiTape(R), EPIC(R)-1, EPIC(R)-S, ELIC(R), FALC(R)54, FALC(R)56, FALC(R)-E1, FALC(R)-LH, IDEC(R), IOM(R), IOM(R)-1, IOM(R)-2, IPAT(R)-2, ISAC(R)-P, ISAC(R)-S, ISAC(R)-S TE, ISAC(R)-P TE, ITAC(R), IWE(R), MUSAC(R)-A, OCTAT(R)-P, QUAT(R)-S, SICAT(R), SICOFI(R), SICOFI(R)2, SICOFI(R)-4, SICOFI(R)-4C, SLICOFI(R) are registered trademarks of Infineon Technologies AG. ACETM, ASMTM, ASPTM, POTSWIRETM, QuadFALCTM, SCOUTTM are trademarks of Infineon Technologies AG. Edition 03.99 Published by Infineon Technologies AG i. Gr., SC, Balanstrae 73, 81541 Munchen (c) Infineon Technologies AG i. Gr. 25.08.99. All Rights Reserved. Attention please! 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Components used in life-support devices or systems must be expressly authorized for such purpose! Critical components1 of the Infineon Technologies AG, may only be used in life-support devices or systems2 with the express written approval of the Infineon Technologies AG. 1 A critical component is a component used in a life-support device or system whose failure can reasonably be expected to cause the failure of that lifesupport device or system, or to affect its safety or effectiveness of that device or system. 2 Life support devices or systems are intended (a) to be implanted in the human body, or (b) to support and/or maintain and sustain human life. If they fail, it is reasonable to assume that the health of the user may be endangered. TDA 6930 Product Info Product Info General Description Features Application The TDA 6930 is an integrated circuit for high class multistandard TV vision IF signal, sound IF signal and AM-Audio signal processing. FM and NICAM sound IF carriers are converted to their intercarrier frequency. All switching functions are controlled via open collector transistors. Outputs for threshold controlled tuner AGC , digital tuning AFC , DF and AM-AF for all terrestrial standards are available. FPLL carrier regeneration from sound channel without nyquist slope for best sound S/N and pulse response Choice of 2 VIF / SIF switchable inputs intercarrier operation possible seperate AM-AF demodulator channel without external components Package parallel output of DF/Nicam and AM-AF L/L` peak white detector VIF-AGC with average controlled response, scrambling save for Canal + adjustable tuner AGC Low operating voltage of 7.5 V precision internal bandgap reference VCO frequency switchable for L / L` digital tuning AFC seperate adjustable for L` Fully ESD protected Television sets VTR sets Ordering Information Wireless Components Type Ordering Code Package TDA 6930X Q67007-A5217 GEG P-DSO-28 TDA 6931X Q67007-A5229 GEG P-DSO-32 TDA 6930S Q67000-A5180 S-DIP-30 Product Info Specification, August 1999 1 Table of Contents 1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2 2.1 2.2 2.3 2.4 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 3 3.1 3.2 3.3 3.4 3.5 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Pin Definition and Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 Internal circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Functional Description (P-DSO-32) . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 Block Diagram (P-DSO-32) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9 4 4.1 4.1.1 4.1.2 4.1.3 4.2 4.2.1 4.2.2 4.2.3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Application Circuit P-DSO-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Application Circuit P-DSO-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Application Circuit S-DIP-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 Typical input-filter concept 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 Typical input-filter concept 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7 Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 5 5.1 5.1.1 5.1.2 5.1.3 5.2 5.2.1 5.2.2 5.2.3 5.2.4 5.2.5 5.2.6 Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 AC/DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 Electrical Diagramms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 Typical VIF AGC voltage characteristic . . . . . . . . . . . . . . . . . . . . . . . 5-8 Typical VIF intermodulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 Typical AM AF S/N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 Typical AM Audio THD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 Typical DC-current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10 Typical AF amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10 2 Product Description Contents of this Chapter 2.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.3 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.4 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 TDA 6930 Product Description 2.1 Overview The TDA 6930 is an integrated circuit for high class multistandard TV vision IF signal, sound IF signal and AM-Audio signal processing. FM and NICAM sound IF carriers are converted to their intercarrier frequency. All switching functions are controlled via open collector transistors. Outputs for threshold controlled tuner AGC , digital tuning AFC , DF and AM-AF for all terrestrial standards are available. 2.2 Features FPLL carrier regeneration from sound channel without nyquist slope for best sound S/N and pulse response Choice of 2 VIF / SIF switchable inputs intercarrier operation possible seperate AM-AF demodulator channel without external components VCO frequency switchable for L / L` digital tuning AFC seperate adjustable for L` parallel output of DF/Nicam and AM-AF L/L` peak white detector VIF-AGC with average controlled response, scrambling save for Canal + adjustable tuner AGC Low operating voltage of 7.5 V precision internal bandgap reference Fully ESD protected 2.3 Application Wireless Components Television sets VTR sets 2-2 Specification, August 1999 TDA 6930 Product Description 2.4 Package Outlines P-DSO-28: P-DSO-32: Wireless Components 2-3 Specification, August 1999 TDA 6930 Product Description S-DIP-30: Wireless Components 2-4 Specification, August 1999 3 Functional Description Contents of this Chapter 3.1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3.2 Pin Definition and Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 3.3 Internal circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 3.4 Functional Description (P-DSO-32) . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 3.5 Block Diagram (P-DSO-32) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9 TDA 6930 Functional Description 3.1 Pin Configuration SIF2X/VIF2X 1 28 SIF1Y SIF2Y/VIF2Y 2 27 SIF1X GND 3 26 AGCH AMSIFX 4 25 VIF1Y AMSIFY 5 24 VIF1X SIFAGC 6 23 AGCOUT 22 AGCREF 21 AGCM AMAFOUT 7 FMDFOUT 8 AMSIFAGC TDA 6930 9 20 VCC1 PDLOOP 10 19 TRAPOUT AFCOUT 11 18 UREF GND 12 17 SSW1 VCC 13 16 SSW2 VCOY 14 15 VCOX Pin_config_1.wmf Figure 3-1 Pin Configuration P-DSO-28 SIF2X/VIF2X 1 32 SIF1Y SIF2Y/VIF2Y 2 31 SIF1X GND 3 30 AGCH AMSIFX 4 29 VIF1Y AMSIFY 5 28 VIF1X SIFAGC 6 27 AGCOUT AMAFOUT 7 26 AGCREF FMDFOUT 8 25 AGCM AMSIFAGC 9 24 VCC1 PDLOOP 10 23 TRAPOUT AFCOUT 11 22 UREF GND 12 21 SSW1 VCC 13 20 SSW2 VCOY 14 19 VCOX TP2X 15 18 TP1X TP2Y 16 17 TP1Y TDA 6930 Pin_config_2.wmf Figure 3-2 Wireless Components Pin Configuration P-DSO-32 3-2 Specification, August 1999 TDA 6930 Functional Description SIF2X/VIF2X 1 30 SIF1Y SIF2Y/VIF2Y 2 29 SIF1X GND 3 28 AGCH AMSIFX 4 27 VIF1Y AMSIFY 5 26 VIF1X SIFAGC 6 25 AGCOUT 24 AGCREF 23 AGCM AMAFOUT 7 FMDFOUT 8 AMSIFAGC TDA 6930 9 22 VCC1 PDLOOP 10 21 TRAPOUT AFCOUT 11 20 UREF GND 12 19 SSW1 VCC 13 18 SSW2 NC 14 17 NC VCOY 15 16 VCOX Pin_config_3.wmf Figure 3-3 Wireless Components Pin Configuration S-DIP-30 3-3 Specification, August 1999 TDA 6930 Functional Description 3.2 Pin Definition and Function Table 3-1 Pin Definition and Function Pin Symbol Description P-DSO-28 P-DSO-32 S-DIP-30 SIF2X/VIF2X 1 1 1 SIF2Y/VIF2Y 2 2 2 GND 3 3 3 signal input ground AMSIFX 4 4 4 AM Sound IF differential input signal AMSIFY 5 5 5 SIFAGC 6 6 6 FM Sound IF AGC capacitor AMAFOUT 7 7 7 AM audio frequency output FMDFOUT 8 8 8 FM / NICAM differential frequency output AMSIFAGC 9 9 9 AM Sound IF AGC capacitor PDLOOP 10 10 10 PLL loop filter AFCOUT 11 11 11 AFC output GND 12 12 12 power supply ground VCC 13 13 13 positive power supply voltage VCOY 14 14 15 VCO reference circuit for 2*fpc TP2X - 15 - TP2Y - 16 - TP1Y - 17 - TP1X - 18 - VCOX 15 19 16 VCO reference circuit for 2*fpc SSW2 16 20 18 standard switch SSW1 17 21 18 UREF 18 22 20 internal reference voltage capacitor TRAPOUT 19 23 21 CVBS output signal VCC1 20 24 22 analog small signal positive power supply voltage AGCM 21 25 23 AGC average capacitor AGCREF 22 26 24 tuner AGC takeover adjust AGCOUT 23 27 25 tuner AGC output VIF1X 24 28 26 Video IF1 / Carrier differential input signal VIF1Y 25 29 27 AGCH 26 30 28 Video IF AGC capacitor SIF1X 27 31 29 Sound IF1 / Carrier differential input signal SIF1Y 28 32 30 Wireless Components Sound IF2 / Carrier differential input signal Video IF2 / Carrier differential input signal Differential low pass capacitor in automatic phase control circuit for video demodulator Differential low pass capacitor in automatic phase control circuit for video demodulator 3-4 Specification, August 1999 TDA 6930 Functional Description 3.3 Internal circuits Wireless Components 3-5 Specification, August 1999 TDA 6930 Functional Description 3.4 Functional Description (P-DSO-32) Inputs The input signal is distributed via the IF-MUX to the according amplifier channels. VIF-Mux Normaly VIF1 is used for video if input ( filter with no sound carrier). A special mode with a secondary VIF input at SIF 2 is available. In this case the carrier recovery gets its input signal in any way from SIF1. For more Information see input selection logic-table in the application circuit section. In the also available Intercarrier mode for low cost application, all signals are transferred together via VIF1 or VIF2 input, depending on input switching logic. SIF-Mux SIF1 input is used for DF-sound and carrier recovery ( double channel filter ). For L` inverted sideband application SIF2 is used instead. AMSIF input is used for all AM sound norms with switchable input filter. IF gain controlled amplifier`s The TDA 6930X incorporates a Video-IF demodulation part (VIF), a AMsound demodulation part (AMSIF) and a Section for PIC-carrier recovery + FM/NICAM SIF conversion (SIF). Each path has its own four-stage capacitively coupled, gain controlled amplifier. AGC`s Tuner AGC A delayed tuner AGC voltage is derived from the VIF-AGC via an inverting threshold amplifier ( increasing VIF input voltage decreases the AGCOUT voltage ). Its take over point with positiv control direction is set by means of a external potentiometer. To avoid regulation oszillation the input has a shared characteristic and the output is clamped to min 0.3 V which prevents for coming into gain control inversion at low regulation voltage levels in several tuner application. VIF AGCs The AGC for the video-IF-amplifier (VIF) has a peak detector for both kinds of modulation. An additional mean value detector will increase the control current for positive modulation if the input signal decreases more than ca. 15 dB. In this case a hysteresis keeps the high control current until the mean value increases by ca. 10 dB. This and an extremly large sample time prevents from AGC oszillation with critical signals. SIF / AMSIF AGC`s The AGC`s for the AM- sound section and PIC-carrier recovery +FM/NICAM section use envelope detectors with extremely low destortion for the SIF amplifiers. Wireless Components 3-6 Specification, August 1999 TDA 6930 Functional Description They have a quick charge circuit which increases the charge current by a factor of 1500 if the mean value of the signal increases by more than 10 dB. The time constants of the AGCs can be set by the according external capacitor. FPLL FPLL carrier Recovery High perfomance in terms of FM sound, digital sound and videotext is obtained by means of a combined path for carrier recovery and FM/NICAM SIF (QPT). The input signal for this section is derived from the QPT SIF I/II input to overcome Nyquist slope distortions in all cases. For L`-applications the VCO frequency is switched internally, thus no external tank circuit switching is necessary. Adjustment of the tank circuit (only necessary for the AFC) is achieved by aligning the AFC voltage to a certain value except in L`mode. In L`-mode the AFC needs to be adjusted via control voltage at pin SSW2. APC For best video demodulation a phase locked clean carrier is needed. Due to differences in the filter and amplifier characteristics of the amplifier channels it is necessary to align the phase of the recovered carrier to the incoming signal of VIF port . The possible phase control margin of the therefore used APC is +180 to -180 . For best performance 2 external low pass capacitors are added at the PDSO-32 package. In this case the APC is extremly stable at carrier zero time and over modulation. This feature is not available in the less than 32 pin packages . VCO The VCO consists of a temperature compensated stacked symmetrical ECL multivibrator and devider by 2 . The main tank circuit is aligned to twice of the recovery frequency. All internal signals are of symmetrical ECL type. This is necessary for small amplitudes with high temperature stability and low oscillator radiation. Wireless Components Video demodulation + output Video IF Demodulation A real synchronous demodulator receives an inphase carrier via the automatic phase control (APC) from the FPLL. Thus, low differential phase and gain, high intermodulation ratio und good impuls response is achieved withouth any aligment. DF-Mixer / FM sound conversion The SIF-Sound/PIC-carrier section gets its input signal from SIF1 except in L`-NICAM mode, then input SIF 2 is active. The SIF- signal is mixed with the 90-carrier from the FPLL to generate the 2. sound IF at the according output (DF). This output is always active except in Mac standard, there both sound outputs are off. 3-7 Specification, August 1999 TDA 6930 Functional Description AM-Audio Sound demodulation The AM-sound section uses the envelope detector of the AGC to demodulate the AM sound signal. An optimized special AM-sound demodulator and the envelope detector garantee an extremely low AF output destortion. In case of L or L` standard the AM-AF output is active, in other standards this output is inactive. According to the standard switches FM/NICAM and/or AM processing is performed. Wireless Components AFC + Adjust The AFC consists of a high inpedance input comparator who gets its control voltage from the loopfilter / VCO charge pump capacitor. Its OTA output voltage swing and gain can be controlled via the necessary external load resistors The adjust is controlled by norm switch inputs and is only aktive in L` mode. The operation is performed by controlling the reference input voltage of the AFC comparator. Switches The internal I2L norm switch decoding logic is buffered by PNP comparator interfaces with hysteresis. Therefore the input signal voltage margin at SSW1 and SSW2 is 0 - vcc Voltage reference The reference voltage is performed by a temperature compensated bandgap structure with extremly low noise and high ripple rejection (PSSR). The reference voltage distribution is done by 3 buffer amplifiers with extremly high ripple rejection (PSSR). 3-8 Specification, August 1999 TDA 6930 Functional Description 3.5 Block Diagram (P-DSO-32) Block.ps Figure 3-4 Wireless Components Block Diagram (P-DSO-32) 3-9 Specification, August 1999 4 Applications Contents of this Chapter 4.1 4.1.1 4.1.2 4.1.3 Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Application Circuit P-DSO-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Application Circuit P-DSO-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Application Circuit S-DIP-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 4.2 4.2.1 4.2.2 4.2.3 Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 Typical input-filter concept 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 Typical input-filter concept 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7 Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 TDA 6930 Applications 4.1 Circuits 4.1.1 Application Circuit P-DSO-28 Apllso28.ps Figure 4-1 Wireless Components Application Circuit P-DSO-28 4-2 Specification, August 1999 TDA 6930 Applications 4.1.2 Application Circuit P-DSO-32 Apllso32.eps Figure 4-2 Wireless Components Application Circuit P-DSO-32 4-3 Specification, August 1999 TDA 6930 Applications 4.1.3 Application Circuit S-DIP-30 Apllso32.eps Figure 4-3 Wireless Components Application Circuit S-DIP-30 4-4 Specification, August 1999 Wireless Components 4-5 L L L H H H H L H H H L L L L L L L H H L L H H L L H H L L H H L H L H L H L H L H L H L H L H SSW1 SSW2 38.9 33.9 38.9 38.9 38.9 33.9 38.9 38.9 38.9 33.9 38.9 38.9 38.9 33.9 38.9 38.9 VIF2 VIF2 VIF2 VIF2 VIF1 VIF1 VIF1 VIF1 VIF2 VIF2 VIF2 VIF2 VIF1 VIF1 VIF1 VIF1 VIF VIF2 VIF2 VIF2 VIF2 VIF1 VIF1 VIF1 VIF1 SIF1 SIF1 SIF1 SIF1 SIF1 SIF2 SIF1 SIF1 SIF selected inputs2 pos. pos. neg. neg. pos. pos. neg. neg. pos. pos. neg. neg. pos. pos. neg. neg. modulation whitepeak,average / 1:8300 whitepeak,average / 1:8300 syncpeak,average / :8300 syncpeak / 1:83 whitepeak,average / 1:8300 whitepeak,average / 1:8300 syncpeak,average / 1:8300 syncpeak / 1:83 whitepeak,average / 1:8300 whitepeak,average / 1:8300 syncpeak,average / 1:8300 syncpeak / 1:83 whitepeak,average / 1:8300 whitepeak,average / 1:8300 syncpeak,average / 1:8300 syncpeak / 1:83 AGC-type / ratio on on mute mute on on mute mute on on mute mute on on mute mute AM AF off on off off off on off off off on off off off on off off AFC adjust L` L intercarrier (Mac) BG L L` (Mac) BG L L` (Mac) BG L L` intercarrier intercarrier intercarrier intercarrier intercarrier intercarrier BG (Mac) norm intercarrier * ..internal VCO : 2 2)..VIF = Vision-IF, SIF=Sound-IF + Carrier S-DIP-30 : SIF1=pin29,30; SIF2=pin1,2; VIF1=pin26,27; VIF2=pin1,2; SSW1=pin19; SSW2=pin18 P-DSO-32 : SIF1=pin31,32; SIF2=pin1,2; VIF1=pin28,29; VIF2=pin1,2; SSW1=pin21; SSW2=pin20 L L H L H H L H H L H H L H H L VIF1 SIF1 VCO* MHz table1: input selection logic TDA 6930 Applications 4.2 Hints Specification, August 1999 TDA 6930 Applications 4.2.1 Typical input-filter concept 1 nokia.tif Wireless Components 4-6 Specification, August 1999 TDA 6930 Applications 4.2.2 Typical input-filter concept 2 Grundig1.tif Wireless Components 4-7 Specification, August 1999 TDA 6930 Applications 4.2.3 Application hints Table 4-1 AFC adjust and VCO tank circuit dimension 1st VCO* (frequency = 38.9 MHz) 2nd VCO frequency** Ra Rb Lc Cc 33.4 MHz 10k 4.7k 120nH 19.5pF 33.9 MHz 4.7k 10k 120nH 18pF *) internal VCO : 2 frequency for any norm except L` **) internal VCO : 2 frequency for L` Application note 1 : Adjusting the tank circuit At the desired IF-frequency the AFC-output current has to be zero. Therefore the voltage at that pin will be Vs/2. This is achieved by adjusting 1st the coil, 2nd Ra for L` mode. No further aligment e.g. for sound S/N is necessary. Application note 2 : FPLL, loopfilter response Measuring the frequency response of the loop. The frequency response of the FPLL can be measured at the loopfilter output Pin 10. If a frequency modulated carrier is applied to the Picture carrier input the demodulated signal occures at Pin 10. Within its bandwidth the FPLL can track modulation frequencies, thus this frequencies can be measured there. The frequency response with the recommended loopfilter can be seen in the picture below. U10 (f) U10 (o) 10 100 1k 10k 100k 1M 10M 0dB -3 dB 10dB -20dB -30dB -40dB Designing the frequency response There should be no overshoot until 20 kHz. The bandwidth has to be high enough to control the destortions generated by the tuner. To reject intercarrier buzz at 250 kHz video modulation the loop filter response at that frequency should be as low as possible. Wireless Components 4-8 Specification, August 1999 TDA 6930 Applications Application note 3 : Equations Resonance frequency : 1 KO KDI fn = --- -------- 2 CLF Damping factor: = fn CLF RLF Phase detector gain: KOI = 250 A --- rad VCO-gain: KO = 2 2 MHz ---- V with tank circuit: 120 nH || 18 pF Loopfilter capacitor: CLF recommended CLF = 1 Loopfilter resistor: RLF recommended RLF = 120 A second capacitor in parallel with RLF is recommend to reduce the response at 250 kHz C P= 4.7 nF Values: With the recommend tank circuit and loopfilter Wireless Components VCO range: fpp = 4 MHz Resonance frequency: fn = 9 kHz Damping factor: = 8.5 Loop cut off frequency: f-3dB = 100 kHz 4-9 Specification, August 1999 5 Reference Contents of this Chapter 5.1 5.1.1 5.1.2 5.1.3 Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 AC/DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 5.2 5.2.1 5.2.2 5.2.2 5.2.3 5.2.4 5.2.5 5.2.6 Electrical Diagramms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 Typical VIF AGC voltage characteristic . . . . . . . . . . . . . . . . . . . . . . . 5-8 Typical VIF intermodulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 Typical VIF intermodulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 Typical AM AF S/N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 Typical AM Audio THD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 Typical DC-current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10 Typical AF amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10 TDA 6930 Reference 5.1 Electrical Data 5.1.1 Absolute Maximum Ratings WARNING The maximum ratings may not be exceeded under any circumstances, not even momentarily and individually, as permanent damage to the IC will result. Table 5-1 Absolute Maximum Ratings Parameter Symbol Limit Values Unit min max Remarks Supply voltage Vcc, Vcc1 0 10 V Supply voltage (S-DIP-30 only) Vcc, Vcc1 0 12 V Output current ( RLmin = 500 ) ITRAPOUT 0 6 mA Output current ( RLmin = 2 k) Iuref3! 0 3 mA Output current IAGCOUT 0 25 mA Output voltages VSIFAGC`s 0 3.6 V Output voltage VAGCOUT 0 12 V Output voltage VAFCOUT 0 Vcc V Output voltage VDFOUT 0 Vcc V Output voltage VAFOUT 0 Vcc V Output voltage VAGCM 0 3.6 < Vcc V Output voltage VTRAPOUT 0 Vcc V Output voltage Vuref3! 0 7 < Vcc V Input voltage VAGCREF 0 3.6 < Vcc V Input voltages VVIF,SIF 0 Vcc V Input voltages VSSW 0 Vcc V Input voltages VTP 0 6 < Vcc V Input voltages VVCO 0 4.5 < Vcc V Input voltage VPDLOOP 0 6 < Vcc V Wireless Components 5-2 Specification, August 1999 TDA 6930 Reference Table 5-1 Absolute Maximum Ratings (continued) Symbol Parameter Limit Values Unit min max -4 4 kV 150 C 125 C ESD-voltage all pins HBM ( R=1.5k , C=100pF ) VESD Junction temperature Tj Storage temperatue Tstg Thermal resistance P-DSO28 (sys-air) TthSA 76 K/W Thermal resistance P-DSO32 (sys-air) TthSA 76 K/W Thermal resistance S-DIP30 (sys-air) TthSA 57 K/W - 40 Remarks All voltage values are referenced to ground, if not stated otherwise. 5.1.2 Operating Range Within the operating range the IC operates as described in the circuit description. The AC / DC characteristic limits are not guaranteed. Table 5-2 Operating Range Symbol Parameter Limit Values Unit min max Supply voltage Vcc,Vcc1 7.5 10 V Supply voltage (S-DIP-30 only) Vcc, Vcc1 7.5 12 V Tuner AGC supply voltage VAGCOUT 0.6 10 V IF-input frequency range VIF, SIF , AMSIF fin 12 60 MHz IF-input AC-voltages V 50 Vrms 120 mVrms Ambient temperature during operation TA -10 85 Test Conditions L Item C All voltage values are referenced to ground, if not stated otherwise. Wireless Components 5-3 Specification, August 1999 TDA 6930 Reference 5.1.3 AC/DC Characteristics Table 5-3 AC/DC Characteristics with TA 25 C, VCC = 8.5 V Symbol Limit Values min typ Unit Test Conditions mA RL>1M,CL<1.5pf 6.3 V RL>1M,CL<1.5pf 2 mA L Item max Power Supply Total current consumption ICC+ICC1 Reference voltage Vuref3! Reference voltage Iuref3! 90 5.7 6.0 Norm switches H Level V SSW 2 5 V L Level V SSW 0 1 V external load at SSW2 if high I SSW2 1 % of resistor devider current 3.8 V V IF= 0 Vpp IF inputs DC level V IF 3.4 Mono / Intercarrieraktive I SIF1 100 400 A RGnd < 27 k 2nd. IF input VIF2 aktive I VIF1 100 400 A RGnd < 27 k 3.6 VCO Tank circuit, DC level V VCO Loopfilter voltage V PDloop 2.3 5 V dependant on input frequency V AGCH 0 3.6 V dependant on input amplitude 2.6 V Peak - detector VIF-AGC Voltage range AGC time constant B/G standard Charge current I AGCH 1 mA VAGCH = 2V, VTRAPOUT < 1.0V Discharge current I AGCH 12 Charge / discharge ratio AGCH 83 Wireless Components 5-4 A VAGCH = 2V, VTRAPOUT > 2.0V Specification, August 1999 TDA 6930 Reference Table 5-3 AC/DC Characteristics with TA 25 C, VCC = 8.5 V (continued) Symbol Limit Values min typ Unit Test Conditions L Item max AGC time constant with L-Standard or Mac Standard Charge current I AGCH 1 mA VAGCH = 2V, VTRAPOUT > 3.0V Discharge current I AGCH 120 nA VAGCH=2V, VTRAPOUT = 2.5V Discharge current ( under average control ) I AGCH 100 A VAGCH = 2V, VTRAPOUT < 1.0V Charge / discharge ratio AGCH 8300 V dependant on input amplitude Envelope - detector AGCs Voltage range VSIFAgcs Charge / discharge current ISIFAgcs 1.5 A VSIFAgcs = 1.5 V Quick charge ISIFAgcs 1.5 mA VSIFAgcs = 1.5 V Output current - ITrapout 0.84 mA VAGCM = Vsync +0.7 VVIF =Carrier nomod. Sync pulse level VTrapout 1.25 V White level VTrapout 2.75 V 0.2 2.9 Video output AM output DC level (L, L') VAMAFout DC level (AM inactive ) VAMAFout 3.2 3.6 4.0 V SC nomod. high impedance DF output DC level VFMDFout Output current IFMDFout 2.8 3.4 4.0 2.5 V mA VFMDFout = DC level +0.7V AFC output Voltage range VAFCout Output current IAFCout 250 A VAFC = Vcc / 2 Voltage at centerfrequency VAFCout Vcc / 2 V 1:1 Vcc devider Slope IAFCout 0.7 A/kHz AFC - adjust VSSW2 Wireless Components 1V VS-1V 3 5 5-5 V V switch at SSW2: high impedance Specification, August 1999 TDA 6930 Reference Table 5-3 AC/DC Characteristics with TA 25 C, VCC = 8.5 V (continued) Symbol Limit Values min typ max 18 30 Unit Test Conditions mA V AGCOUT = 4V L Item Tuner AGC Max. output current max. 1ms I AGCOUT 10 Min. output current I AGCOUT 0 Output short current I AGCOUT 150 V AGCOUT 0.2 0.3 Control range VVIF,SIF 54 60 Min. input voltage VVIF,SIF AGC range VAMSIF Min. input voltage VAMSIF Min. output voltage R AGCOUT = 0 200 10 A V AGCOUT = VCC1 V AGCREF = max 250 A V AGCOUT = 0 V 0.5 V R AGCOUT = R AGCOUT = IF inputs 120 54 dB 180 60 120 Vrms VTrapout = -3 dB dB 180 Vrms 1.75 Vpp B/G norm VTrapout = -1 dB VAMAFout = -3 dB Video output , VIF OFW G1962M sound shelf -20 dB Signal level VTrapout Video bandwidth f -1dB Differrential Gain 1.25 1.5 7 8 MHz DG 4 % RL>1M,CL<1.5pf Differrential Phase DP 1.5 deg RL>1M,CL<1.5pf Intermodulation f1 = 4.52MHz, PC modulated from black to white, f2 = 5.50 MHz, SC -13 dB to unmodulated PC @IM 62 dB f = 980 KHz Levels at Trapout f1 = - 2.0 dB f2 = - 13 dB Intermodulation f1 = 4.4MHz, -13.2 dB to PC sync level, -10 dB to PC modulated from black to white, f2 = 5.50 MHz, SC -7 dB to unmodulated PC @IM RL>1M,CL<1.5pf 69 dB f = 1.1 MHz Levels at IF input f1 =-13.2dB to sync f2 =-27 dB to PC RL>1M,CL<1.5pf S/N CCIR Unified WTD S/N CCIR 567 Unweighted 60 55 65 59 dB dB VIF = max. black & white residual vision carrier VTrapout 500 Vrms RL>1M,f=38.9MHz residual VCO carrier VTrapout 350 Vrms RL>1M,f=77.8MHz Wireless Components 5-6 Specification, August 1999 TDA 6930 Reference Table 5-3 AC/DC Characteristics with TA 25 C, VCC = 8.5 V (continued) Symbol Limit Values min typ Unit Test Conditions L Item max DF output Signal level Input wideband transformer coupled VFMDFout Output current IFMDFout 100 mVrms SC / PC= -13 dB PC nomod. S/N CCIR WTD 2.5 mA VFMDFout = DC level +0.7V 58 dB PIC=FubK Pattern VIF = max. AM output : no picture carrier , AM SIF OFW L9453M Signal level VAMAFout 700 900 1100 mVrms m = 80% , 1kHz THD total 0.25 0.5 % m = 30% , 1kHz THD total 0.35 1.0 % m = 80% , 1kHz dB m = 80% , 1kHz VAMAFout = +3 dB S/N Quasi Peak CCIR WTD 60 AM output : picture carrier FubK modulation, AM SIF OFW L9453M Signal level 900 1100 mVrms m = 80% , 1kHz THD 2 x fo 0.1 0.25 % m = 30% , 1kHz THD total 1.5 2.0 % m = 30% , 1kHz THD 2 x fo 0.2 0.5 % m = 80% , 1kHz THD total 0.7 1.5 % m = 80% , 1kHz S/N Quasi Peak CCIR WTD 45 dB m = 80% , 1kHz VAMAFout = +3 dB Wireless Components VAMAFout 700 5-7 Specification, August 1999 TDA 6930 Reference 5.2 Electrical Diagramms 5.2.1 Typical VIF AGC voltage characteristic as a function of input signal (V) 4 3.5 3 2.5 2 1.5 1 500m 0 -65 -60 -55 ( V ) : Uin(dBm) -50 -45 -40 -35 -30 -25 -20 -15 -10 - 5 Uin(dBm (43)U AGC zfagc.eps 5.2.2 Typical VIF intermodulation as a function of input signal (dB) 5 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 -55 -60 -65 0 10 ( d B ) : Abregelung(dB) 20 30 (26)intermod 40 (29)farbtrae 50 (30)tontrae 60 70 80 Abregelung(dB (27)1MHz-Ref Intermod.eps Wireless Components 5-8 Specification, August 1999 TDA 6930 Reference 5.2.3 Typical AM AF S/N as a function of input signal (dB) 10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -90 -80 ( d B ) : Uin(dBm) -70 (48)U_NF -60 -50 -40 -30 -20 -10 0 Uin(dBm (48)Ur Amnfsn.eps 5.2.4 Typical AM Audio THD as a function of input signal : m=80% (%) 6 5.5 5 4.5 4 3.5 3 2.5 2 1.5 1 500m 0 -70 -65 ( % ) : Uin(dBm) -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 -10 - 5 Uin(dBm) (48)KLIRR nfklirrf.eps Wireless Components 5-9 Specification, August 1999 TDA 6930 Reference 5.2.5 Typical DC-current consumption as a function of VCC 0.09 0.08 0.07 Icc(A) 0.06 0.05 0.04 0.03 0.02 0.01 0.0 0.0 1.0 Icc(A) : Vcc(V) 2.0 3.0 4.0 5.0 Vcc(V) 6.0 7.0 8.0 9.0 10.0 I_PIN 5.2.6 Typical AF amplitude as a function of input signal m=80% (V) 1.6 1.4 1.2 1 800m 600m 400m 200m 0 -90 ( V ) : Uin(dBm) -80 -70 -60 -50 -40 -30 -20 -10 0 Uin(dBm) (48)U_NF nfpegel.eps Wireless Components 5 - 10 Specification, August 1999