LUMA-CHROMA DEFLECTION PROCESSOR FAST BLANKING INPUTS AUTOMATIC C
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STV2102
LUMA-CHROMA DEFLECTION PROCESSOR
FAST BLANKING INPUTS AUTOMATIC CUT-OFF CONTROL DC-CONTROLLED BRIGHTNESS, CONTRAST SATURATION CERAMIC 500kHz LINE DEFLECTION PHASE-LOCKED REFERENCE OSCILLATOR USING STANDARD 4.43MHz CAPABILITY OUTPUTS VIDEO IDENTIFICATION GENERATOR
SHRINK (Plastic Package) ORDER CODE STV2102
DESCRIPTION STV2102 chroma decoder, video deflection processor CTV. Used with TDA8222, this permits complete cost solution with external output stages. compatible with STV2110 PAL/SECAM processor. CONNECTIONS
SUPPLY VOLTAGE BLANKING INPUT GREEN CUT-OFF CAPACITOR OUTPUT HORIZONTAL GREEN OUTPUT BLUE OUTPUT BLUE CUT-OFF CAPACITOR LUMINANCE SIGNAL INPUT SCANNING LOOP FILTER SCANNING XTAL COMPOSITE VIDEO SIGNAL LINE FLYBACK INPUT VERTICAL OUTPUT HORIZONTAL OUTPUT CONTRAST CONTROL CONNECTED CHROMA INPUT GROUND DELAY CHROMA INPUT CHROMA STANDARD ROUT HVcc GOUT BOUT SLPF SXTL CVBS VOUT HOUT PALIN ICAT BRIG
CATHODE CURRENT SUPPLY VOLTAGE INPUT BLUE INPUT GREEN INPUT CUT-OFF CAPACITOR INPUT BRIGHTNESS CONTROL FAST BLANKING INPUT
CLPF CHROMA LOOP FILTER CXTL CHROMA XTAL KILLER CAPACITOR CONNECTED CONTROL CAPACITOR CONNECTED CONNECTED SATURATION CONTROL CONNECTED CONNECTED GROUND
2102-01.EPS
CONNECTED CHROMA OUTPUT
1992 1/12
This advance information product development undergoing evaluation. Details subject change without tice.
2/12
HVcc Blk. ROUT
Input Contrast Matrix
Brightness Blanking
STV2102
BLOCK DIAGRAM
BRIG
Black Insertion
Contrast Clamp
GOUT BOUT
Clamp Black Reference Saturation Switch Tube Temp Meas. Leak. Current Meas. Cut-off
ICAT
CXTL
XVCO
Demod.
Frame Sync. Separator
Decoder
Blank. Comp.
CLPF
90deg
Phase Detector Flip-Flop
Line Counter
Frame Output
VOUT
Killer
Burst Detector
Burst Gate Generator
Phase Comp.
Phase Shift
Line Output
HOUT
PALIN
Matrix
Mute
Sync. Sep.
Phase Comp.
Divider
CVBS
SLPF
SXTL
2102-02.EPS
STV2102
FUNCTIONAL DESCRIPTION DEFLECTION Synchronization Separator synchronization separator based bottom synchronization pulses alignment internal reference voltage. external capacitor permits align synchro. pulses, external resistors determines detection threshold synchro pulses. frame synchronization pulses locked 32µs reference signal perfect interlacing. Horizontal Scanning horizontal scanning frequency obtained from 500kHz VCO. circuit uses phase-locked loops (PLL). first controls frequency; second one, fully integrated, controls relative phase synchronization line flyback signals. first times constants long time constant during picture have good noise immunity, short time constant beginning frame recapture faster phase case video signal. More over, short time constant three lines before frame pulses occured, permits ensure good interlacing when video signal comes from tape with high phase error. horizontal output signal 28µs width. starting horizontal pulses enabled 6.8V. shutting down, horizontal pulses inhibited 6.2V. vertical output signal 10.5 lines width. permits drive sawtooth generator such TDA1771. video recognition function permits sent information video identification forces level when video detection occurs. CHROMA Amplifier, Matrix Demodulator correct chroma subcarrier input, issued from bandpass, internally selected with standard. amplifier envolves three stages first select correct input, second -6dB picture (PAL mode), third controled voltage. dynamic range over than 30dB. chrominance output signal delay line. adding substracting direct delayed signals performed matrix function. synchronous demodulators multiplies (B-Y) signal with degree phase 4.43MHz reference signal (R-Y) signal with alternate deg. 4.43MHz phase reference signal. 4.43MHz Phase Locked Loop oscillating frequency 4.43MHz crystal oscillator controlled output voltage loop filter. phase detector will lock degree reference signal direct burst signal. degree phase shifter permits recover degree reference signal. flip-flop driven line pulses permits generate alternate degree signal. Control Color Killer direct burst signal demodulatedwith degree reference signal. demodulation result used control killer function. demodulation result always positive, killer capacitor charged standard identified (color ON). When demodulation result always negative, killer capacitor voltage reaches flip-flop inhibition level, alternace sequence reversed capacitor charged again. case video signal, killer capacitor voltage maintained about VCC/2, below color threshold. VIDEO luminance input controlled contrast control stage which range 20dB. luminance color difference signals added video matrix circuit obtain color signals. color signals sent switch which will drive outputs either internal signals external signals. Automatic Cut-off Control black levels outputs controlled with cut-off loops during three line periods after frame retrace. cut-off measurements sequentially achieved during these three lines. leakage current measurement achieved during frame retrace memorized internal capacitor, thus circuit able extract cut-off current from total current measurement. Warm-up Detector start-up, cut-off loops switch off, white level inserted luminance signal until cathode current detected. Then cut-off loops released.
3/12
STV2102
Inputs avoid black level inserted signal differing from black level normal video signal, external clamped black ABSOLUTE MAXIMUM RATINGS
Symbol Tstg Toper Parameter Supply Voltage Storage Temperature Operating Temperature Value -55, +150 Unit
level luminance signal. Therefore, coupling required inputs. inputs controlled 12dB range contrast control stage.
Symbol (j-a)
Parameter Junction-ambient Thermal Resistance
Max.
Value
Unit
ELECTRICAL CHARACTERISTICS (VCC Tamb 25oC unless otherwise specified)
Symbol Icch Iccv&c VBW9 VDC9 (Max.) (Max.) (Max.) I4-7-39 Ii4-7-39 4-6-7 Parameter Scanning Supply Voltage (Pin Video Chroma Supply Voltage (Pins 41-42) Scanning Supply Current (pin Video Chroma Supply Current (Pins 41-42) Total Power Dissipation Input Level before Clipping (black white) Operating Voltage Input Current Luma Gain Contrast Control Voltage Maximum Allowed Control Voltage Contrast Control Range Input Current Brightness Control Voltage Maximum Allowed Control Voltage Input Current Input Current Saturation Control Voltage Maximum Allowed Control Voltage Saturation Control Range Control Current Leakage Current Output Signal Amplitude (black white) 0.35V Contrast Sat. Brig. Test Conditions Min. Typ. ±100 ±150
2102-03.TBL
load load load
Max.
Unit mVPP
LUMINANCE INPUT (Pin input signal During burst period burst period
CONTRAST CONTROL (Pin
BRIGHTNESS CONTROL (Pin
SATURATION CONTROL INPUT (Pin
CLAMP CAPACITORS (Pins 4-7-39)
OUTPUTS (Pins 4-6-7)
4/12
2102-02.TBL
THERMAL DATA
2102-01.TBL
STV2102
ELECTRICAL CHARACTERISTICS (continued) (VCC Tamb 25oC unless otherwise specified)
Symbol -I4-6-7 VM4-6-7 Vblank 4-6-7 Parameter Test Conditions Min. Typ. Max. Unit
OUTPUTS (Pins 4-6-7) (continued) Individual Output Sinking Current Maximum Peak White Level Blanking Level Relative Variation Black Level with Various CONT. SAT. BRIG between channels Black Level Thermal Drift Bandwith Tracking between Luminance Chrominance Signals over 10dB Contrast Control
Vtemp BW4-6-7
INPUTS (Pins 37-39-40) VBW37-39-40 Maximum Input Level Vclamp Clamp Level
37-39-40
Contrast -3dB 1.75 Change burst over whole Control Range input signal During burst gate period burst gate period
37-39-40 Bandwidth GCTR Contrast Control Range G37-39-40 Gain FAST BLANKING INPUT (Pin VTH1-35 VTH2-35 Tswitch blank First Threshold (switching) Second Threshold (switching) Input Current Switching Delay Blanking Delay Leakage Current Reference Voltage Reference refered Leakage Current Reference Voltage Output Current AUTOMATIC CUT-OFF (Pin 3-8-38) Capacitor Cut-off Positive Negative Clamping Start-beam Current Detection Reference Voltage Cut-off Output Range Input Level Before Clipping Minimum Burst Signal Amplitude within Control Range Control Range Input Impedance Operating Voltage Charging Current Leakage Current Control Current Leakage Current Catching Range
mVPP mVPP 5/12
CATHODE CURRENT INPUT (Pin
V4-6-7 Vburst-18 GACC VDC-18 Ii30 Ii34 CR33
CHROMINANCE INPUT (Pin
CAPACITOR (Pin
LOOP FILTER (Pin
CHROMAXTAL (Pin
2102-04.TBL
STV2102
ELECTRICAL CHARACTERISTICS (continued) (VCC Tamb 25oC unless otherwise specified)
Symbol Vburst-22 VOFF-32 VON-32 VINH-32 Ii32 Vnom-32 VDC-20 VREF-12 CR11 Iiow-10 Ihigh-10 Parameter Output Burst Amplitude (PAL mode) Collor Voltage Color Voltage Flip-flop Inhibition Level Control Current Leakage Current Voltage with Nominal Input Signal Operating Voltage Input Impedance Voltage Reference Video Input Signal Frequency after Divider Frequency Control Range after Divider Loop Gain Output Current High Loop Gain Output Current Window Pulse Width Threshold Line Flyback Amplitude Minimum Negative Voltage Input Current Threshold Line Flyback Amplitude Minimum Negative Voltage Input Current External Adjustment Output Pulse Width Output Voltage (open collector) Start Level Stop Level Phase Range Output Pulse Width Frame Synchro. Window Output Voltage (Open collector) Test Conditions Within Control Range chroma signal Min. Typ. input Signal standard Max. Unit lines line SUBCARRIER OUTPUT (Pin KILLER CAPACITOR (Pin
DELAYED CHANNEL INPUT (Pin
COMPOSITE VIDEO BASE BAND SIGNAL (Pin
SCANNING XTAL (Pin 15.625 ±700 0.15 0.40 -0.4 -0.4 Appli. Adjust. 10mA 10.5
LOOP FILTER (Pin
DELAYED LINE FLYBACK INPUT (Pin VTH-13 VDC-13 VTH-2 VDC-2 Ph22 Vlow-15 Vstart Vstop-15 Tsync Vlow-14
DIRECT BLANKING INPUT (Pin2)
HORIZONTAL OUTPUT (Pin
VERTICAL OUTPUT (Pin
2102-05.TBL
6/12
STV2102
Figure Pins 3-8-38-42 (COG, COB, COR, ICAT)
3-8-38
Figure Pins 37-39-40 (RIN, GIN, BIN)
Figure Pins 4-6-7 (ROUT, GOUT, BOUT)
4-6-7 37-39-40
2102-04.EPS
Figure (YIN)
Figure (SLPF)
2102-06.EPS
7/12
2102-07.EPS
2102-05.EPS
2102-03.EPS
STV2102
Figure (SXTL) Figure (CVBS)
VREF
2102-08.EPS
2102-09.EPS
Figure Pins 2-13 (BLK, LFB)
Figure Pins 14-15 (VOUT, HOUT)
2-13
2102-10.EPS
Figure Pins 16-27 (CTR, SAT)
Figure (PALIN)
REF2
2102-12.EPS
8/12
2102-13.EPS
2102-11.EPS
STV2102
Figure (DLI) Figure (PS)
REF1
2102-14.EPS
Figure (CKP)
Figure (DLO)
2102-16.EPS
2102-17.EPS
9/12
2102-15.EPS
STV2102
Figure (ACC)
Figure (BRIG)
Figure (CXTL)
Figure (CLPF)
2102-19.EPS
Figure (FBL)
Base Current Compensatio
Phase Comparator
10/12
2102-21.EPS
2102-22.EPS
2102-20.EPS
2102-18.EPS
HVcc
100nF
100µ 22nF
ICAT
22nF
BRIG
MUTE
100nF 100nF 100nF
APPLICATION DIAGRAM
100µF
22nF 22nF
ICAT
22nF
BRIG
HVcc
10nF
CVBS
CXTL
TRAP
4.43MHz
ROUT
GOUT
CLPF
470k
BOUT
min.
RAMP GENERATOR (TDA1771)
VOUT
33nF
47nF
3.3nF
680k
6.8nF
VERTICAL DEFLECTION
6.8nF
STV2102
min.
PALIN
10nF
CVBS 10µH
HOUT
SXTL 47nF
500kHz
120pF
SLPF
LINE YOKE
3.9k
2.2µF
10nF
CVBS
500k
10nF
100pF
TRANSFORMER
CVBS
5.6k
10nF
4.7nF
10µH 10µH
STV2102
11/12
2102-22.EPS
STV2102
PACKAGE MECHANICAL DATA PINS PLASTIC SHRINK
Stand-off
Dimensions
Min. 3.30
Millimeters Typ. 0.51 0.35 0.20 0.75 0.75 15.57
Max.
Min. 0.130
Inches Typ. 0.020 0.014 0.008 0.030 0.030 0.613
Max.
0.59 0.36 1.42 39.12 17.35 0.070 1.400 0.600
0.023 0.014 0.056 1.540 0.683
1.778 35.56 15.24 14.48 5.08 2.54
0.100
Information furnished believed accurate reliable. However, SGS-THOMSON Microelectronics assumes responsibility consequences such information infringement patents other rights third parties which result from use. licence granted implication otherwise under patent patent rights SGS-THOMSON Microelectronics. Specifications mentioned this publication subject change without notice. This publication supersedes replaces information previously supplied. SGS-THOMSON Microelectronics products authorized critical components life support devices systems without express written approval SGS-THOMSON Microelectronics. 1994 SGS-THOMSON Microelectronics Rights Reserved Purchase Components SGS-THOMSON Microelectronics, conveys license under Philips Patent. Rights these components system, granted provided that system conforms Standard Specifications defined Philips. SGS-THOMSON Microelectronics GROUP COMPANIES Australia Brazil China France Germany Hong Kong Italy Japan Korea Malaysia Malta Morocco Netherlands Singapore Spain Sweden Switzerland Taiwan Thailand United Kingdom U.S.A.
12/12
SDIP42.TBL
0.570 0.200
PMSDIP42.EPS
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