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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)
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). PIN CONNECTIONS
ORDER CODE : TEA2130
REFERENCE VOLTAGE VCR DETECTOR OUTPUT 1 FILTER GROUND V CC FRAME SAFETY INPUT IDENTIFICATION OUTPUT LINE SAW-TOOTH CURRENT REFERENCE LINE MONOSTABLE CAPACITOR
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
NOISE MEASUREMENT OUTPUT VIDEO INPUT 50% CAPACITOR VCO INPUT FRAME SAW-TOOTH GENERATOR FRAME SAW-TOOTH OUTPUT 2 FILTER LINE FLYBACK INPUT SUPER SANDCASTLE OUTPUT
2130-01.EPS
LINE OUTPUT
September 1993
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TEA2130
BLOCK DIAGRAM
18 17 16 15
19
LINE SYNCHRO SEPARATOR
VCO 500kHz
FRAME SEPARATOR
FRAME SAWTOOTH GENERATOR
LS 2s 20
NOISE MEASURMENT
Ident 60Hz
RAZ 14
2
Mute
VREF
1
VCC /2
AUTO VCR SWITCH
1
500kHz
2
FRAME LOGIC
SUPER SAND
13 12 Inhibition
Burst
CASTLE GENERATOR
3 1
DIGITAL MUT
Burst
2
Mute
PHASE CONTROL LINE OUTPUT LINE MONOST LINE OUTPUT
11
2s
LINE LOGIC
Mute 10 1.3V
VOLTAGE
1.3V
50/60Hz Mute
REFERENCE
9
FRAME SECURITY DETECTION
50/60Hz & MUT OUTPUT
RAZ LINE SAWTOOTH
GENERATOR
8
4 GND
5
6
7
VC C
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.
- 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.
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2130-02.EPS
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 32s 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 29s, 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. ABSOLUTE MAXIMUM RATINGS
Symbol VCC V16 I11 I13 TAMB 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
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 1 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, 1 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.
THERMAL DATA
Symbol Rth(j-a) Parameter Junction-ambient Thermal Resistance Value 80
o
Unit C/W 3/8
2130-02.TBL
2130-01.TBL
TEA2130
ELECTRICAL CHARACTERISTICS (Tamb = 25oC; VCC = 12V; Pulse duration 50% of the amplitude)
Symbol Parameter Supply Voltage Supply Current VCC Starting Voltage for Line Output Switch-off Voltage for Line Output VIDEO INPUT (Pin 19) Video Signal Amplitude Push out Current Pull in Current 50% SYNCH. PULSE CLAMP (Pin 18) Push out Current Pull in Current 1 AND 3 COMPARATOR (Pin 2- Pin 3) Short Time Output Current Long Time Output Current VCO (Pin 17) Catching Range Transfer Characteristic Free Running Frequency Ceramic CSB 503B RSERIAL = 470 F pin 11/V pin 3 Without video signal 15.6 15.40 2 15.9 16.2 15.92 kHz kHz/V kHz Identification high Identification high 1.1 0.30 1.5 0.48 2 0.65 mA mA During the synch. pulse During the line - 960 15 - 350 23 - 40 32 A A Z source < 220 During the synch. pulse During the line 0.2 - 40 3 1 - 32 5 3 - 24 7 VPP A A Without load in pins 7-12-15 VCC rising VCC decreasing 20 Test conditions Min. Typ. 12 29 7 6.5 40 7.5 Max. Unit V mA V V
VIDEO IDENTIFICATION AND STANDARD OUTPUT (Pin 7) No video on Pin 19 60Hz video 50Hz video REFERENCE VOLTAGE (Pin 1) Output voltage Output impedance Max output current AUTO VCR SWITCH (Pin 2) V Switching threshold /V1 Short time ct2 on 1 PM Active above Threshold NOISE GATE (Pin 20) Measure sampling time Max. push out current VCR mode inhibition threshold (long time cte) Measure bandwidth (-3dB) Short time constant manual switching threshold On the synch. pulse bottom Vnoise = 0.4VPP, F = 1MHz on 2VPP Video Signal Active above threshold Voltage hysteresis High cut frequency Low cut frequency Active under threshold 4.5 6.9 1 2 350 7.3 100 2 0.7 5 5.5 7.5 3 s A V mV
2130-03.TBL q
RLOAD/GND = 5k 5.5 10.5
0 6 11.3
500 6.5
mV V V
I1 = 0 I1 = 50A
5.5 400
6 600
6.5 800 200
V A
With no noise on the video (V20 < 6V) With noise on video (6V < V20 < 7.3V
0.2
0.3
0.4
V V
q
0.69 x V20 - 3.85
MHz MHz V
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TEA2130
ELECTRICAL CHARACTERISTICS (continued) (Tamb = 25oC; VCC = 12V; Pulse duration 50% of the amplitude)
Symbol Parameter Test conditions Min. 300 2.2 Typ. 500 2.7 Max. 700 3.2 Unit A s 2 COMPARATOR (Pin 14) Output current Delay between 2 falling edge and the middle video sync. pulse LINE MONOSTABLE (Pin 10) Charge current Discharge current Flip-Flop threshold LINE OUTPUT (Pin 11) Low level Pulse duration 2 adjustment range LINE SAW-TOOTH (Pin 8) Charge Current Discharge Current Discharge Duration LINE FLYBACK INPUT (Pin 13) Blanking Line Threshold 2 Loop Threshold and Line Output Inhibition (Pin 11) Input Current Active above threshold Active above threshold 0.4V < V13 < 0.4V 0.4V < V13 < 3V 3V < V13 0.35 2.7 - 20 - 10 0.4 3 -10 -5 0.6 3.3 -4 -4 -1 V V A A A V 4.5 2.5 2.8 5 3 3.15 V V s Controlled by logic VCO 500kHz R9 = 3.32 k - 200 3.5 - 180 7 6.5 - 150 A mA s I11= 20 mA R9 = 3.32k , C10 = 1.5nF Controlled by V14 compared with video signal 27 15 29.5 18 1 32 V s s Line output high Line output low Falling edge on the line output - 67 170 1.3 A A V During line flyback FVCO = 500 kHz
SUPER SANDCASTLE GENERATOR (Pin 12) Burst Level Line Blanking Level Frame Blanking Level Delay between the midde of the video sync. pulse and the rising edge of the burst (t1) RL = 2.2 k to ground 9 4 2 2.45
t1
2130-03.EPS
Burst Pulse Duration Line Blanking Duration Frame Blanking Duration
q q
50Hz 60Hz
4.1 3.6
4.4 3.9
4.7 4.2
s s
2130-04.TBL
Fixed by flyback Signal pin 13 Fixed by the logic 21 Line
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TEA2130
ELECTRICAL CHARACTERISTICS (continued) Tamb = 25oC; VCC = 12V; Pulse duration 50% of the amplitude
Symbol Parameter Test conditions Min. Typ. Max. Unit FRAME SAW-TOOTH GENERATOR Low DC Voltage Discharge Current 60Hz Internal Current FRAME LOGIC SYNCH. Free Running Period Synchronization Windows Without video signal Identification low Identification 60Hz high VCR mode 247 247 247 315 361 277 361 Line Line Line Line 1.1 15 - 10 -8 1.3 1.45 60 -6 V mA A
CURRENT REFERENCE (Pin 9) V9 Voltage Max. Temperature Shift FRAME SAFETY INPUT (Pin 6)
2130-05.TBL
R9 = 3.32 k (1%) T = 80oC
1.2
1.3 1
1.4
V %
Switching Threshold Output current
Actived without negative pulse during frame blanking time for permanent frame blanking on SSC output Pin 12
1.3 - 35 - 50 - 67
V A
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TEA2130
TYPICAL TV APPLICATION
+200V DC C5B503B
4.7M 470
VERTICAL OUT Line Flyback 10 VPP
HORIZONTAL FLYBACK INPUT 220nF
2.2
J1 BNC VIDEO INPUT
100nF
SSC OUT
2.2k 10k
HORIZONTAL OUT 220nF
75
47nF 1nF
2.2k
20
19
18
17
16
15
14
13
12
11
1k
22nF
22k 470k
HORIZONTAL POSITION
TEA2130
MUTE & 50/60Hz OUT 1 2 3 4 5 6 7 8 9 10
V CC
470k
100k
100nF
3.32k 1% 10k
4.7nF
10F
4.7nF
2.2F 2.7k
1000F
100k
3.3nF
1.5nF
1nF VERTICAL FEEDBACK
2130-04.EPS
33nF
3.9k
V CC +12V
TYPICAL SYNC SEPARATOR APPLICATION
C5B503B
470 J1 2.7k
+5V
VERTICAL OUT LINE SYNC OUTPUT 3.3nF
10k
VIDEO INPUT
BNC
100nF
75
220nF
2.2k
VCC
NC 11
20
19
18
17
16
15
14
13
12
TEA2130
MUTE & 50/60Hz OUT 1 2 3 4 5 6 NC 470k 100k 7 8 9 10
100nF
3.32k
10k 2.2F
4.7nF
10F
4.7nF
1000 F
1%
2.7k 33nF
VCC
+12V
7/8
2130-05.EPS
3.9k
TEA2130
PACKAGE MECHANICAL DATA 20 pins - PLASTIC DIP
a1
I
b1 E
Z
b e3
B
e Z
D
20
11
F
L
1
10
Dimensions 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
Inches Typ.
Max. 0.065
0.45 0.25 25.4 8.5 2.54 22.86 7.1 3.93 3.3 1.34
0.018 0.010 1.000 0.335 0.100 0.900 0.280 0.155 0.130 0.053
DIP20.TBL
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. (c) 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.
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PM-DIP20.EPS

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