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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)
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TDA 6930
Product Info
Product Info
General Description 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.
s
Package
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` Television sets
s
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
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s
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Application
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VTR sets
Ordering Information
Type TDA 6930X TDA 6931X TDA 6930S Ordering Code Q67007-A5217 GEG Q67007-A5229 GEG Q67000-A5180 Package P-DSO-28 P-DSO-32 S-DIP-30
Wireless Components
Product Info
Specification, August 1999
1
Table of Contents
1 2 2.1 2.2 2.3 2.4 3 3.1 3.2 3.3 3.4 3.5 4 4.1 4.1.1 4.1.2 4.1.3 4.2 4.2.1 4.2.2 4.2.3 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 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 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 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 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 2.2 2.3 2.4 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 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
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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
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2.3 Application
s s
Television sets VTR sets
Wireless Components
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 3.2 3.3 3.4 3.5 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
TDA 6930
Functional Description
3.1 Pin Configuration
SIF2X/VIF2X SIF2Y/VIF2Y GND AMSIFX AMSIFY SIFAGC AMAFOUT FMDFOUT AMSIFAGC PDLOOP AFCOUT GND VCC VCOY
1 2 3 4 5 6 7 8 9 10 11 12 13 14
28 27 26 25 24 23
SIF1Y SIF1X AGCH VIF1Y VIF1X AGCOUT AGCREF AGCM VCC1 TRAPOUT UREF SSW1 SSW2 VCOX
TDA 6930
22 21 20 19 18 17 16 15
Pin_config_1.wmf
Figure 3-1
Pin Configuration P-DSO-28
SIF2X/VIF2X SIF2Y/VIF2Y GND AMSIFX AMSIFY SIFAGC AMAFOUT FMDFOUT AMSIFAGC PDLOOP AFCOUT GND VCC VCOY TP2X TP2Y
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
32 31 30 29 28 27
SIF1Y SIF1X AGCH VIF1Y VIF1X AGCOUT AGCREF AGCM VCC1 TRAPOUT UREF SSW1 SSW2 VCOX TP1X TP1Y
TDA 6930
26 25 24 23 22 21 20 19 18 17
Pin_config_2.wmf
Figure 3-2
Pin Configuration P-DSO-32
Wireless Components
3-2
Specification, August 1999
TDA 6930
Functional Description
SIF2X/VIF2X SIF2Y/VIF2Y GND AMSIFX AMSIFY SIFAGC AMAFOUT FMDFOUT AMSIFAGC PDLOOP AFCOUT GND VCC NC VCOY
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
30 29 28 27 26 25
SIF1Y SIF1X AGCH VIF1Y VIF1X AGCOUT AGCREF AGCM VCC1 TRAPOUT UREF SSW1 SSW2 NC VCOX
TDA 6930
24 23 22 21 20 19 18 17 16
Pin_config_3.wmf
Figure 3-3
Pin Configuration S-DIP-30
Wireless Components
3-3
Specification, August 1999
TDA 6930
Functional Description
3.2 Pin Definition and Function
Table 3-1 Pin Definition and Function Symbol P-DSO-28 SIF2X/VIF2X SIF2Y/VIF2Y GND AMSIFX AMSIFY SIFAGC AMAFOUT FMDFOUT AMSIFAGC PDLOOP AFCOUT GND VCC VCOY TP2X TP2Y TP1Y TP1X VCOX SSW2 SSW1 UREF TRAPOUT VCC1 AGCM AGCREF AGCOUT VIF1X VIF1Y AGCH SIF1X SIF1Y 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 Pin P-DSO-32 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 31 32 S-DIP-30 1 2 3 4 5 6 7 8 9 10 11 12 13 15 16 18 18 20 21 22 23 24 25 26 27 28 29 30 Video IF AGC capacitor Sound IF1 / Carrier differential input signal internal reference voltage capacitor CVBS output signal analog small signal positive power supply voltage AGC average capacitor tuner AGC takeover adjust tuner AGC output Video IF1 / Carrier differential input signal Sound IF2 / Carrier differential input signal Video IF2 / Carrier differential input signal signal input ground AM Sound IF differential input signal Description
FM Sound IF AGC capacitor
AM audio frequency output FM / NICAM differential frequency output
AM Sound IF AGC capacitor
PLL loop filter AFC output power supply ground positive power supply voltage VCO reference circuit for 2*fpc Differential low pass capacitor in automatic phase control circuit for video demodulator Differential low pass capacitor in automatic phase control circuit for video demodulator VCO reference circuit for 2*fpc standard switch
Wireless Components
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)
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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.
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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.
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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.
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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.
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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.
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Wireless Components
3-7
Specification, August 1999
TDA 6930
Functional Description
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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.
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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).
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s
Wireless Components
3-8
Specification, August 1999
TDA 6930
Functional Description
3.5 Block Diagram (P-DSO-32)
Block.ps
Figure 3-4
Block Diagram (P-DSO-32)
Wireless Components
3-9
Specification, August 1999
4
Applications
Contents of this Chapter 4.1 4.1.1 4.1.2 4.1.3 4.2 4.2.1 4.2.2 4.2.3 Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Application Circuit P-DSO-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Application Circuit P-DSO-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Application Circuit S-DIP-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 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
Application Circuit P-DSO-28
Wireless Components
4-2
Specification, August 1999
TDA 6930
Applications
4.1.2
Application Circuit P-DSO-32
Apllso32.eps
Figure 4-2
Application Circuit P-DSO-32
Wireless Components
4-3
Specification, August 1999
TDA 6930
Applications
4.1.3
Application Circuit S-DIP-30
Apllso32.eps
Figure 4-3
Application Circuit S-DIP-30
Wireless Components
4-4
Specification, August 1999
table1: input selection logic
selected inputs2 VIF SIF modulation AGC-type / ratio norm AM AF AFC adjust
Wireless Components
SIF1
VIF1
SSW1 SSW2
VCO* MHz
H
syncpeak / 1:83 syncpeak,average / 1:8300 whitepeak,average / 1:8300 whitepeak,average / 1:8300 syncpeak / 1:83 syncpeak,average / 1:8300 whitepeak,average / 1:8300 whitepeak,average / 1:8300 syncpeak / 1:83 syncpeak,average / 1:8300 whitepeak,average / 1:8300 whitepeak,average / 1:8300 syncpeak / 1:83 syncpeak,average / :8300 whitepeak,average / 1:8300 whitepeak,average / 1:8300
H VIF1 VIF1 VIF1 VIF2 VIF2 VIF2 VIF2 VIF1 VIF1 VIF1 VIF1 VIF2 VIF2 VIF2 VIF2 VIF2 VIF2 pos. pos. VIF2 neg. VIF2 neg. VIF1 pos. VIF1 pos. VIF1 neg. VIF1 neg. SIF1 pos. on mute mute on on mute mute on on SIF1 pos. on on off off off on off off off on off
intercarrier intercarrier intercarrier intercarrier intercarrier intercarrier intercarrier intercarrier
H SIF1 SIF2 SIF1 SIF1 SIF1 neg. mute off neg. mute off pos. on off pos. on on L` L BG (Mac) L` L BG (Mac) L` L BG (Mac) L` L neg. mute off (Mac)
H
38.9
VIF1
SIF1
neg.
mute
off
BG
H
H
H
L
38.9
4.2 Hints
H
H
L
H
33.9
H
H
L
L
38.9
H
L
H
H
38.9
H
L
H
L
38.9
H
L
L
H
33.9
4-5
H
L
L
L
38.9
L
H
H
H
38.9
L
H
H
L
38.9
L
H
L
H
33.9
L
H
L
L
38.9
L
L
H
H
38.9
L
L
H
L
38.9
L
L
L
H
33.9
L
L
L
L
38.9
Applications
TDA 6930
Specification, August 1999
* ..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
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** 33.4 MHz 33.9 MHz Ra 10k 4.7k Rb 4.7k 10k Lc 120nH 120nH Cc 19.5pF 18pF
*) internal VCO : 2 frequency for any norm except L` **) internal VCO : 2 frequency for L`
s 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. s 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 0dB 10dB -20dB -30dB -40dB
100
1k
10k
100k
1M -3 dB
10M
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
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Application note 3 : Equations
Resonance frequency :
1 KO KDI fn = --- -------- 2 CLF
= fn CLF RLF KOI = 250 A --- rad MHz ---- V
Damping factor: Phase detector gain:
VCO-gain:
KO = 2 2
with tank circuit: 120 nH || 18 pF
Loopfilter capacitor:
CLF recommended RLF recommended
CLF = 1 RLF = 120
Loopfilter resistor:
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 fpp = 4 MHz fn = 9 kHz = 8.5 f-3dB = 100 kHz
VCO range: Resonance frequency: Damping factor: Loop cut off frequency:
Wireless Components
4-9
Specification, August 1999
5
Reference
Contents of this Chapter 5.1 5.1.1 5.1.2 5.1.3 5.2 5.2.1 5.2.2 5.2.2 5.2.3 5.2.4 5.2.5 5.2.6 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 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 min Supply voltage Supply voltage (S-DIP-30 only) Output current ( RLmin = 500 ) Output current ( RLmin = 2 k) Output current Output voltages Output voltage Output voltage Output voltage Output voltage Output voltage Output voltage Output voltage Input voltage Input voltages Input voltages Input voltages Input voltages Input voltage Vcc, Vcc1 Vcc, Vcc1 ITRAPOUT Iuref3! IAGCOUT VSIFAGC`s VAGCOUT VAFCOUT VDFOUT VAFOUT VAGCM VTRAPOUT Vuref3! VAGCREF VVIF,SIF VSSW VTP VVCO VPDLOOP 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 max 10 12 6 3 25 3.6 12 Vcc Vcc Vcc 3.6 < Vcc Vcc 7 < Vcc 3.6 < Vcc Vcc Vcc 6 < Vcc 4.5 < Vcc 6 < Vcc V V mA mA mA V V V V V V V V V V V V V V Unit Remarks
Wireless Components
5-2
Specification, August 1999
TDA 6930
Reference
Table 5-1 Absolute Maximum Ratings (continued) Parameter Symbol Limit Values min ESD-voltage all pins HBM ( R=1.5k , C=100pF ) Junction temperature Storage temperatue Thermal resistance P-DSO28 (sys-air) Thermal resistance P-DSO32 (sys-air) Thermal resistance S-DIP30 (sys-air) VESD Tj Tstg TthSA TthSA TthSA - 40 -4 max 4 150 125 76 76 57 kV Unit Remarks
C C
K/W K/W K/W
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 Parameter Symbol Limit Values min Supply voltage Supply voltage (S-DIP-30 only) Tuner AGC supply voltage IF-input frequency range VIF, SIF , AMSIF IF-input AC-voltages Ambient temperature during operation Vcc,Vcc1 Vcc, Vcc1 VAGCOUT fin V TA 7.5 7.5 0.6 12 50 Vrms -10 max 10 12 10 60 120 mVrms 85 V V V MHz Unit 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 Power Supply Total current consumption Reference voltage Reference voltage Norm switches H Level L Level external load at SSW2 if high IF inputs DC level Mono / Intercarrieraktive 2nd. IF input VIF2 aktive VCO Tank circuit, DC level Loopfilter voltage Peak - detector VIF-AGC Voltage range V AGCH 0 3.6 V dependant on input amplitude V VCO V PDloop 2.3 2.6 5 V V dependant on input frequency V IF I SIF1 I VIF1 3.4 100 100 3.6 3.8 400 400 V V IF= 0 Vpp RGnd < 27 k RGnd < 27 k V SSW V SSW I SSW2 2 0 5 1 1 V V % of resistor devider current ICC+ICC1 Vuref3! Iuref3! 5.7 90 6.0 6.3 2 mA V mA RL>1M,CL<1.5pf RL>1M,CL<1.5pf typ max Unit Test Conditions L Item
A A
AGC time constant B/G standard Charge current I AGCH I AGCH AGCH 1 mA VAGCH = 2V, VTRAPOUT < 1.0V Discharge current 12 VAGCH = 2V, VTRAPOUT > 2.0V
A
Charge / discharge ratio
83
Wireless Components
5-4
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 Unit Test Conditions L Item
AGC time constant with L-Standard or Mac Standard Charge current I AGCH I AGCH 1 mA VAGCH = 2V, VTRAPOUT > 3.0V VAGCH=2V, VTRAPOUT = 2.5V
Discharge current
120
nA
Discharge current ( under average control ) Charge / discharge ratio Envelope - detector AGCs Voltage range Charge / discharge current Quick charge Video output Output current Sync pulse level White level AM output DC level (L, L') DC level (AM inactive ) DF output DC level Output current AFC output Voltage range Output current Voltage at centerfrequency Slope AFC - adjust
I AGCH AGCH
100
A
VAGCH = 2V, VTRAPOUT < 1.0V
8300
VSIFAgcs
0.2 1.5 1.5
2.9
V
dependant on input amplitude VSIFAgcs = 1.5 V VSIFAgcs = 1.5 V
ISIFAgcs
ISIFAgcs
A
mA
- ITrapout
0.84 1.25 2.75
mA V V
VAGCM = Vsync +0.7 VVIF =Carrier nomod.
VTrapout VTrapout
VAMAFout VAMAFout 3.2
3.6
4.0
V
SC nomod.
high impedance
VFMDFout IFMDFout
2.8
3.4 2.5
4.0
V mA VFMDFout = DC level +0.7V
VAFCout IAFCout VAFCout IAFCout VSSW2
1V 250 Vcc / 2 0.7 3
VS-1V
V
A
V
VAFC = Vcc / 2 1:1 Vcc devider
A/kHz
5 V switch at SSW2: high impedance
Wireless Components
5-5
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 Tuner AGC Max. output current max. 1ms Min. output current I AGCOUT I AGCOUT I AGCOUT 10 18 30 mA V AGCOUT = 4V R AGCOUT = 0 typ max Unit Test Conditions L Item
0
10
A A
V
V AGCOUT = VCC1 V AGCREF = max R AGCOUT = R AGCOUT = V AGCOUT = 0 V
Output short current
150
200
250
Min. output voltage IF inputs Control range Min. input voltage AGC range Min. input voltage
V AGCOUT
0.2
0.3
0.5
VVIF,SIF
VVIF,SIF
54
60 120 180
dB Vrms dB 180 Vrms VAMAFout = -3 dB VTrapout = -3 dB
VAMSIF
VAMSIF
54
60 120
Video output , VIF OFW G1962M sound shelf -20 dB Signal level Video bandwidth Differrential Gain Differrential Phase Intermodulation f1 = 4.52MHz, PC modulated from black to white, f2 = 5.50 MHz, SC -13 dB to unmodulated PC 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 S/N CCIR Unified WTD S/N CCIR 567 Unweighted residual vision carrier residual VCO carrier
VTrapout
f -1dB DG DP @IM
1.25 7
1.5 8 4 1.5 62
1.75
Vpp MHz % deg dB
B/G norm VTrapout = -1 dB RL>1M,CL<1.5pf RL>1M,CL<1.5pf f = 980 KHz Levels at Trapout f1 = - 2.0 dB f2 = - 13 dB RL>1M,CL<1.5pf f = 1.1 MHz Levels at IF input f1 =-13.2dB to sync f2 =-27 dB to PC RL>1M,CL<1.5pf
@IM
69
dB
60 55
65 59 500 350
dB dB Vrms Vrms
VIF = max. black & white RL>1M,f=38.9MHz RL>1M,f=77.8MHz
VTrapout VTrapout
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 DF output Signal level Input wideband transformer coupled Output current S/N CCIR WTD VFMDFout 100 mVrms SC / PC= -13 dB PC
nomod.
Unit
Test Conditions
L Item
typ
max
IFMDFout
2.5 58
mA dB
VFMDFout = DC level +0.7V PIC=FubK Pattern VIF = max.
AM output : no picture carrier , AM SIF OFW L9453M Signal level THD total THD total S/N Quasi Peak CCIR WTD VAMAFout 700 900 0.25 0.35 60 1100 0.5 1.0 mVrms % % dB m = 80% , 1kHz m = 30% , 1kHz m = 80% , 1kHz m = 80% , 1kHz VAMAFout = +3 dB
AM output : picture carrier FubK modulation, AM SIF OFW L9453M Signal level THD 2 x fo THD total THD 2 x fo THD total S/N Quasi Peak CCIR WTD VAMAFout 700 900 0.1 1.5 0.2 0.7 45 1100 0.25 2.0 0.5 1.5 mVrms % % % % dB m = 80% , 1kHz m = 30% , 1kHz m = 30% , 1kHz m = 80% , 1kHz m = 80% , 1kHz m = 80% , 1kHz VAMAFout = +3 dB
Wireless Components
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
-50
-45
-40
-35
-30
-25
-20
-15
-10
- 5 Uin(dBm
( V ) : 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 20 30 40 (29)farbtrae 50 (30)tontrae 60 70 80 Abregelung(dB ( d B ) : Abregelung(dB) (26)intermod (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 ( d B ) : Uin(dBm)
-80
-70 (48)U_NF (48)Ur
-60
-50
-40
-30
-20
-10
0 Uin(dBm
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
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
- 5 Uin(dBm)
( % ) : 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
0.06
Icc(A)
0.05
0.04
0.03
0.02
0.01
0.0 0.0 Icc(A) : Vcc(V) 1.0 I_PIN 2.0 3.0 4.0 5.0 Vcc(V) 6.0 7.0 8.0 9.0 10.0
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 (48)U_NF
-60
-50
-40
-30
-20
-10
0 Uin(dBm)
nfpegel.eps
Wireless Components
5 - 10
Specification, August 1999

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