TEA2130 TV AND SATELLITE DECODER SCANNING PROCESSOR . .. . .. . .. .. AUTOMATIC TIME CONSTANT SWITCHING FOR VCR DIGITAL VIDEO IDENTIFICATION CIRCUIT 500kHz RESONATOR OSCILLATOR NO LINE AND FRAME OSCILLATOR ADJUSTMENT DUAL PLL FOR LINE DEFLECTION SUPER SANDCASTLE OUTPUT AUTOMATIC 50Hz/60Hz STANDARD IDENTIFICATION EXCELLENT INTERLACING CONTROL FRAME SAFETY INPUT FRAME SAWTOOTH GENERATOR FULLY ESD AND LATCH-UP PROTECTED DIP20 (Plastic Package) ORDER CODE : TEA2130 DESCRIPTION The TEA2130 is a complete (horizontal and vertical) deflection processor, for TV applications and all applications which require a flexible, high performance scanning processor (Satellite Decoder, Video Multimedia). REFERENCE VOLTAGE 1 20 NOISE MEASUREMENT OUTPUT VCR DETECTOR OUTPUT 2 19 VIDEO INPUT Φ1 FILTER 3 18 50% CAPACITOR GROUND 4 17 VCO INPUT V CC 5 16 FRAME SAW-TOOTH GENERATOR FRAME SAFETY INPUT 6 15 FRAME SAW-TOOTH OUTPUT IDENTIFICATION OUTPUT 7 14 Φ2 FILTER LINE SAW-TOOTH 8 13 LINE FLYBACK INPUT CURRENT REFERENCE 9 12 SUPER SANDCASTLE OUTPUT 10 11 LINE OUTPUT LINE MONOSTABLE CAPACITOR September 1993 2130-01.EPS PIN CONNECTIONS 1/8 TEA2130 BLOCK DIAGRAM 18 19 17 16 LINE SYNCHRO VCO FRAME SEPARATOR 500kHz SEPARATOR 15 FRAME SAWTOOTH GENERATOR Ident 60Hz LS RAZ 2µs 20 NOISE 14 Mute Φ2 MEASURMENT VREF 1 2 500kHz Φ1 VCC /2 AUTO VCR FRAME SWITCH LOGIC ϕ2 ϕ1 2µs DIGITAL MUT 12 Inhibition Burst 3 13 SUPER SAND CASTLE GENERATOR Burst Mute LINE LOGIC PHASE CONTROL LINE LINE LINE OUTPUT MONOST OUTPUT 11 Mute 10 1.3V VOLTAGE REFERENCE 50/60Hz 1.3V 9 Mute 5 VC C 50/60Hz & DETECTION MUT OUTPUT 6 7 GENERAL DESCRIPTION Introduction This integrated circuit uses high density I2L bipolar technology and combines analog signal processing with digital processing. Timing signals are obtained from a voltage-controlled oscillator (VCO) operating at 500kHz by means of a cheap ceramic resonator. This avoid the frequency adjustment normally required with line and frame oscillators. A chain of dividers and appropriate logic circuitry produces very accurate defined sampling pulses and the necessary timing signals. Internal Functions - Horizontal scanning processor - Frame scanning processor - B class frame output stage using an external power amplifier with flyback generator - Line and frame synchronization separation - Dual phase-locked loop horizontal scanning - High performance frame and line synchronization with interlacing control. 2/8 RAZ LINE SAWTOOTH GENERATOR 8 - Supersandcastle generator with reduced burst gate pulse for 60Hz - Automatic 50Hz / 60Hz standard identification - Frame saw-tooth generator - Digital video identification circuit - Very steady free running mode of the line and frame oscillator when no video is detected. This allows on screen display without phase Jitter in research mode of the tuner - Automatic VCR mode recognition for time constant switching - Frame safety input WORKING DESCRIPTION Synchronization Separator Line synchronization separator is clamped to black level of input video signal with synchronization pulse bottom level measurement. The synchronization pulses are divided centrally between the black level and the synchronization pulse bottom level, to improve performance on video signal in noise conditions. 2130-02.EPS 4 GND FRAME SECURITY TEA2130 Frame Synchronization Frame synchronization is fully integrated (no external capacitor required). The frame timing identification logic permits automatic adaptation to 50-60Hz standards or non-interlaced video. An automatic synchronization window width system provides: - Fast frame capture (7.3ms wide window) - Good noise immunity (0.4ms narrow window) The internal generator starts the discharge of the sawtooth generator capacitor, so that it is not disturbed by line flyback effects. Thanks to the logic control, the beginning of the charge phase does not depend on any disturbing effect of the line flyback. A 32µs timing is automatically applied on standardized transmissions for perfect interlacing. In VCR mode, the discharge time is controlled by an internal monostable independent of the line frequency and gives a direct frame synchronization. Horizontal Scanning The horizontal scanning frequency is obtained from the 500kHz VCO. The circuit uses two PLL: - The first one controls the frequency - The second one controls the relative phase of the output line pulse and the line flyback signals. The output pulse has a constant duration of 29µs, independent of VCC and of any delay in switchingoff the scanning transistor. Supersandcastle Generator This output delivers a 3 level synchronization signal: - Burst level - Line blanking level - Frame blanking level In the event of vertical scanning failure, the frame blanking level goes high to protect the tube. Frame Scanning The current to charge the frame sawtooth generator is automatically switched to 60Hz operation to maintain constant amplitude. Automatic VCR Mode Recognition for Time Constant Switching - A third phase comparator is used to detect VCR signals and to switch the φ1 short time constant. - A noise level measurement is realized on the video synchronization pulse to inhibit the short time constant if the noise level is superior to an adjustable threshold. - VCR signals are detected if peak to peak signal on pin 2 is superior to an internal threshold. This threshold is depending on the noise level. So with a no noisy video signal, the auto VCR switch sensitivity is maximum, and it decreases when the noise increases. - The sensitivity of the noise gate and the auto VCR switch is adjustable by external resistance. - Long and short time constants can be selected manually by Pin 20. Digital Video Identification A digital circuit controls the identification signal. When identification signal is low, the line oscillator is set on a reference frequency. When identification signal is high, φ1 is locked and the catching phase can start. So that, the TEA2130 allowed on screen displays in a steady way even without video signal (during tuner research for example). Identification Output The identification function provides three different levels : - 0V : No video identification - 6V : 60Hz video identification - 12V : 50Hz video identification This information may be used for timing research in the case of frequency or voltage synthetizer type receivers and for audio muting. Parameter Supply Voltage Pulse/Frame Sawtooth Generator Voltage Output Current Input Current Operating Ambient Temperature Value 13.5 VCC - 3 40 ± 5 0 , + 70 Unit V V mA mA o C 2130-01.TBL Symbol VCC V16 I11 I13 TAMB Unit C/W 2130-02.TBL ABSOLUTE MAXIMUM RATINGS THERMAL DATA Symbol Rth(j-a) Parameter Junction-ambient Thermal Resistance Value 80 o 3/8 TEA2130 ELECTRICAL CHARACTERISTICS (Tamb = 25oC; VCC = 12V; Pulse duration 50% of the amplitude) Symbol Parameter Test conditions Min. Supply Voltage Typ. Max. Unit 29 40 mA 7 7.5 V 12 Supply Current Without load in pins 7-12-15 VCC Starting Voltage for Line Output VCC rising Switch-off Voltage for Line Output VCC decreasing 20 V 6.5 V VIDEO INPUT (Pin 19) Video Signal Amplitude Z source < 220Ω 0.2 1 3 VPP Push out Current During the synch. pulse - 40 - 32 - 24 µA Pull in Current During the line 3 5 7 µA - 960 - 350 - 40 µA 15 23 32 µA 50% SYNCH. PULSE CLAMP (Pin 18) Push out Current During the synch. pulse Pull in Current During the line φ 1 AND φ 3 COMPARATOR (Pin 2- Pin 3) Short Time Output Current Identification high ± 1.1 ± 1.5 ±2 mA Long Time Output Current Identification high ± 0.30 ± 0.48 ± 0.65 mA Catching Range Ceramic CSB 503B RSERIAL = 470Ω 15.40 15.92 kHz Transfer Characteristic ∆F pin 11/∆V pin 3 Free Running Frequency Without video signal VCO (Pin 17) 2 15.6 kHz/V 15.9 16.2 kHz 0 500 mV 6.5 VIDEO IDENTIFICATION AND STANDARD OUTPUT (Pin 7) No video on Pin 19 RLOAD/GND = 5kΩ 60Hz video 5.5 6 50Hz video 10.5 11.3 V V REFERENCE VOLTAGE (Pin 1) Output voltage I1 = 0 5.5 6 6.5 Output impedance ∆I1 = ± 50µA 400 600 800 Ω 200 µA ± 0.4 V Max output current V AUTO VCR SWITCH (Pin 2) V Switching threshold /V1 Short time ct2 on ϕ1 PM Active above Threshold ● With no noise on the video (V20 < 6V) ● With noise on video (6V < V20 < 7.3V ± 0.2 ± 0.3 0.69 x V20 - 3.85 V NOISE GATE (Pin 20) 4/8 On the synch. pulse bottom Max. push out current Vnoise = 0.4VPP, F = 1MHz on 2VPP Video Signal VCR mode inhibition threshold (long time cte) Active above threshold Voltage hysteresis Measure bandwidth (-3dB) High cut frequency Low cut frequency Short time constant manual switching threshold Active under threshold 1 2 3 6.9 7.3 100 7.5 2 0.7 4.5 5 µs µA 350 V mV MHz MHz 5.5 V 2130-03.TBL Measure sampling time TEA2130 ELECTRICAL CHARACTERISTICS (continued) (Tamb = 25oC; VCC = 12V; Pulse duration 50% of the amplitude) Symbol Parameter Test conditions Min. Typ. Max. Unit ± 300 ± 500 ± 700 µA 2.2 2.7 3.2 µs φ 2 COMPARATOR (Pin 14) Output current During line flyback Delay between φ 2 falling edge and the middle video sync. pulse FVCO = 500 kHz LINE MONOSTABLE (Pin 10) Charge current Line output high - 67 µA Discharge current Line output low 170 µA Flip-Flop threshold Falling edge on the line output 1.3 V LINE OUTPUT (Pin 11) Low level I11= 20 mA Pulse duration R9 = 3.32kΩ , C10 = 1.5nF 27 29.5 1 V 32 µs φ 2 adjustment range Controlled by V14 compared with video signal 15 18 - 200 - 180 3.5 7 mA 6.5 µs µs LINE SAW-TOOTH (Pin 8) Charge Current R9 = 3.32 kΩ Discharge Current Discharge Duration Controlled by logic VCO 500kHz - 150 µA LINE FLYBACK INPUT (Pin 13) Blanking Line Threshold Active above threshold 0.35 0.4 0.6 V φ 2 Loop Threshold and Line Output Inhibition (Pin 11) Active above threshold 2.7 3 3.3 V Input Current - 0.4V < V13 < 0.4V 0.4V < V13 < 3V 3V < V13 - 20 - 10 -10 -5 -4 -4 -1 µA µA µA SUPER SANDCASTLE GENERATOR (Pin 12) RL = 2.2 kΩ to ground 9 V Line Blanking Level 4 4.5 5 Frame Blanking Level 2 2.5 3 V 2.45 2.8 3.15 µs 4.1 3.6 4.4 3.9 4.7 4.2 µs µs t1 Burst Pulse Duration ● ● 50Hz 60Hz Line Blanking Duration Fixed by flyback Signal pin 13 Frame Blanking Duration Fixed by the logic 2130-03.EPS Delay between the midde of the video sync. pulse and the rising edge of the burst (t1) V 21 Line 5/8 2130-04.TBL Burst Level TEA2130 ELECTRICAL CHARACTERISTICS (continued) Tamb = 25oC; VCC = 12V; Pulse duration 50% of the amplitude Symbol Parameter Test conditions Min. Typ. Max. Unit Low DC Voltage 1.1 1.3 1.45 V Discharge Current 15 60 mA -6 µA FRAME SAW-TOOTH GENERATOR 60Hz Internal Current - 10 -8 FRAME LOGIC SYNCH. Free Running Period Without video signal 315 Line Synchronization Windows Identification low Identification 60Hz high VCR mode 247 247 247 V9 Voltage R9 = 3.32 kΩ (1%) 1.2 Max. Temperature Shift ∆T = 80oC ±1 % Actived without negative pulse during frame blanking time for permanent frame blanking on SSC output Pin 12 1.3 V 361 277 361 Line Line Line CURRENT REFERENCE (Pin 9) 1.3 1.4 V Switching Threshold Output current 6/8 - 35 - 50 - 67 µA 2130-05.TBL FRAME SAFETY INPUT (Pin 6) TEA2130 TYPICAL TV APPLICATION +200V DC VERTICAL OUT C5B503B 4.7MΩ 470Ω Line Flyback 10 VPP HORIZONTAL FLYBACK INPUT J1 BNC SSC OUT 2.2Ω 220nF 100nF 2.2kΩ VIDEO INPUT 10kΩ HORIZONTAL OUT 220nF 47nF 75Ω 1nF 20 19 18 17 16 2.2kΩ 15 14 13 12 22nF 11 22kΩ 1kΩ HORIZONTAL POSITION 470kΩ TEA2130 V CC MUTE & 50/60Hz OUT 1 470kΩ 4.7nF 2 3 4 5 7 8 9 10 100nF 100kΩ 10µF 6 4.7nF 2.2µF 3.32kΩ 1% 100kΩ 1000µF 2.7kΩ 10kΩ 3.3nF 1.5nF 1nF 33nF VERTICAL FEEDBACK 2130-04.EPS 3.9kΩ V CC +12V TYPICAL SYNC SEPARATOR APPLICATION C5B503B +5V 470Ω VERTICAL OUT 2.7kΩ J1 VIDEO LINE SYNC OUTPUT 100nF BNC 10kΩ 3.3nF INPUT 75Ω 220nF 2.2kΩ VCC 20 19 18 17 16 15 14 13 12 NC 11 7 8 9 10 TEA2130 MUTE & 50/60Hz OUT 1 2 3 4 5 6 NC 100kΩ 10µF 4.7nF 100nF 3.32kΩ 4.7nF 2.2µF 1000 µ F 10kΩ 1% 2.7kΩ 33nF 3.9kΩ 2130-05.EPS 470kΩ VCC +12V 7/8 TEA2130 I b1 L a1 PACKAGE MECHANICAL DATA 20 pins - PLASTIC DIP B b Z e E Z e3 D 11 1 10 a1 B b b1 D E e e3 F i L Z Min. 0.254 1.39 Millimeters Typ. Max. 1.65 Min. 0.010 0.055 0.45 0.25 Inches Typ. Max. 0.065 0.018 0.010 25.4 8.5 2.54 22.86 1.000 0.335 0.100 0.900 7.1 3.93 3.3 0.280 0.155 0.130 1.34 0.053 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. © 1994 SGS-THOMSON Microelectronics - All Rights Reserved Purchase of I2C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips I2C Patent. Rights to use these components in a I2C system, is granted provided that the system conforms to the I2C Standard Specifications as defined by Philips. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 8/8 DIP20.TBL Dimensions PM-DIP20.EPS F 20