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STV2102
PAL LUMA-CHROMA & DEFLECTION PROCESSOR
PRELIMINARY DATA
n n n
n
n
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RGB AND FAST BLANKING INPUTS AUTOMATIC CUT-OFF CONTROL DC-CONTROLLED BRIGHTNESS, CONTRAST AND SATURATION CERAMIC 500kHz VCO FOR LINE DEFLECTION PHASE-LOCKED REFERENCE OSCILLATOR USING A STANDARD 4.43MHz OSD CAPABILITY ON OUTPUTS VIDEO IDENTIFICATION GENERATOR
SHRINK 42 (Plastic Package) ORDER CODE : STV2102
DESCRIPTION The STV2102 is a PAL chroma decoder, video and H/V deflection processor for CTV. Used with the TDA8222, this IC permits a complete low cost solution with external output stages. It is pin compatible with STV2110 PAL/SECAM processor. PIN CONNECTIONS
SUPPLY VOLTAGE BLANKING INPUT GREEN CUT-OFF CAPACITOR RED OUTPUT HORIZONTAL Vcc 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 NOT CONNECTED PAL CHROMA INPUT GROUND DELAY CHROMA INPUT CHROMA STANDARD Vcc BLK COG ROUT HVcc GOUT BOUT COB YIN SLPF SXTL CVBS LFB VOUT HOUT CTR NC PALIN GND DLI PS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 ICAT Vcc BIN GIN COR RIN BRIG FBL
CATHODE CURRENT SUPPLY VOLTAGE INPUT BLUE INPUT GREEN INPUT RED CUT-OFF CAPACITOR RED INPUT BRIGHTNESS CONTROL FAST BLANKING INPUT
CLPF CHROMA LOOP FILTER CXTL CHROMA XTAL CKP NC ACC NC NC SAT NC NC GND NC DLO PAL KILLER CAPACITOR NOT CONNECTED ACC CONTROL CAPACITOR NOT CONNECTED NOT CONNECTED SATURATION CONTROL NOT CONNECTED NOT CONNECTED GROUND
2102-01.EPS
NOT CONNECTED CHROMA OUTPUT
May 1992 1/12
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice.
2/12
HVcc 5 Blk. RGB 4 ROUT
Y Input Contrast Matrix
Brightness Blanking
STV2102
BLOCK DIAGRAM
Vcc 1
Vcc 41
SAT 27
FBL 35
RIN 37
GIN 39
BIN 40
CTR 16
BRIG 36
YIN 9
Black Insertion
Contrast + Clamp
6 GOUT 7 BOUT
38 COR
Clamp Black Reference Saturation RGB Switch Tube Temp Meas. Leak. Current Meas. RGB Cut-off
3 COG 8 COB 42 ICAT
CXTL 33
XVCO
PAL Demod.
Frame Sync. Separator
Decoder
Blank. Comp.
2 BLK
CLPF 34
90deg
Phase Detector Flip-Flop PAL
Line Counter
Frame Output
14 VOUT
ACC 30
Killer
Burst Detector
Burst Gate Generator
Phase Comp. 2
Phase Shift
Line Output
15 HOUT
CKP 32
PALIN 18
ACC
DL Matrix
Mute
Sync. Sep.
Phase Comp. 1
Divider
VCO
NC 17
SAT
22 DLO
24 GND 19 GND 20 23 DLI NC 21 PS 26 NC 25 NC
31 NC
29 28 NC NC
13 LFB
12 CVBS
10 SLPF
11 SXTL
2102-02.EPS
STV2102
FUNCTIONAL DESCRIPTION DEFLECTION Synchronization Separator The synchronization separator is based on the bottom of synchronization pulses alignment to an internal reference voltage. An external capacitor permits to align synchro. pulses, two external resistors determines the detection threshold of synchro pulses. The frame synchronization pulses are locked to a 32s reference signal to perfect interlacing. Horizontal Scanning The horizontal scanning frequency is obtained from a 500kHz VCO. The circuit uses two phase-locked loops (PLL). The first one controls the frequency; the second one, fully integrated, controls the relative phase of the synchronization and the line flyback signals. The first PLL has two times constants : a long time constant during the picture to have a good noise immunity, a short time constant at the beginning of the frame to recapture faster the phase in case of VCR video signal. More over, the PLL is in short time constant three lines before frame pulses occured, it permits to ensure good interlacing when the video signal comes from a VCR tape with high phase error. The horizontal output signal is 28s width. On starting up, horizontal pulses are enabled at VCC = 6.8V. On shutting down, horizontal pulses are inhibited for VCC = 6.2V. The vertical output signal is 10.5 lines width. It permits to drive a sawtooth generator such as TDA1771. A video recognition function permits to sent the information of no video identification to SAT pin : it forces a low level when no video detection occurs. CHROMA ACC Amplifier, DL Matrix and Demodulator The correct chroma subcarrier input, issued from bandpass, is internally selected with the standard. The ACC amplifier envolves three stages : the first one select the correct input, the second one the -6dB in picture (PAL mode), the third one is controled by the ACC voltage. The dynamic range is over than 30dB. The chrominance output signal is fed to the delay line. The adding and substracting direct and delayed signals are performed by the DL matrix function. Two synchronous demodulators multiplies the (B-Y) signal with the 0 degree phase 4.43MHz reference signal and the (R-Y) signal with the alternate 90 deg. 4.43MHz phase reference signal. 4.43MHz Phase Locked Loop The oscillating frequency of the 4.43MHz crystal oscillator is controlled by the output voltage of the loop filter. The phase detector will lock the 90 degree reference signal to the direct burst signal. A 90 degree phase shifter permits to recover the 0 degree reference signal. A flip-flop driven by line pulses permits to generate the alternate 90 degree signal. ACC Control and Color Killer The direct burst signal is demodulatedwith the 90 degree reference signal. The demodulation result is used by ACC control and killer function. If the demodulation result is always positive, the killer capacitor is charged and the standard is identified (color ON). When demodulation result is always negative, the killer capacitor voltage reaches the flip-flop inhibition level, so the alternace sequence is reversed and the capacitor is charged again. In case of no video signal, the killer capacitor voltage is maintained about VCC/2, below the color off threshold. VIDEO The luminance input is controlled by the contrast control stage which range is 20dB. The luminance and color difference signals are added in the video matrix circuit to obtain the color signals. The color signals are sent to an RGB switch which will drive to the outputs either internal RGB signals or external RGB signals. Automatic Cut-off Control The black levels of the RGB outputs are controlled with the cut-off loops during three line periods after the frame retrace. The cut-off measurements are sequentially achieved during these three lines. The leakage current measurement is achieved during the frame retrace and memorized on an internal capacitor, thus the circuit is able to extract the cut-off current from the total current measurement. Warm-up Detector At the start-up, the cut-off loops are switch off, a white level is inserted on the luminance signal until a cathode current is detected. Then the cut-off loops are released.
3/12
STV2102
RGB Inputs To avoid the black level of the inserted signal differing from the black level of the normal video signal, the external RGB are clamped to the black ABSOLUTE MAXIMUM RATINGS
Symbol Vcc Tstg Toper Parameter Supply Voltage Storage Temperature Operating Temperature Value 12 -55, +150 0, +70 Unit V o C o C
level of the luminance signal. Therefore, an AC coupling is required for the RGB inputs. The RGB inputs are controlled by a 12dB range contrast control stage.
Symbol R th (j-a)
Parameter Junction-ambient Thermal Resistance
Max.
Value 70
o
Unit C/W
DC AND AC ELECTRICAL CHARACTERISTICS (VCC = 9V, Tamb = 25oC unless otherwise specified)
Symbol HV cc Vcc Icch Iccv&c PD VBW9 VDC9 Ig G9 V16 V16 (Max.) G16 I16 V36 V36 (Max.) I36 I29 V29 V29 (Max.) G29 I4-7-39 Ii4-7-39 VBW 4-6-7 Parameter Scanning Supply Voltage (Pin 5) Video & Chroma Supply Voltage (Pins 41-42) Scanning Supply Current (pin 5) Video & Chroma Supply Current (Pins 41-42) Total Power Dissipation Input Level before Clipping (black to white) DC 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 to white) * 0.35V B to W @ Pin 9 * Contrast @ max * Sat. & Brig. @ 3V Test Conditions Min. 8.1 8.1 Typ. 9 9 20 45 580 350 2.5 100 5.5 2 to 4 5 20 10 1.5 to 4.5 5 10 10 2 to 4 5 -50 150 1 2 V V dB A V V A A V V dB A A V
2102-03.TBL
No load No load No load
Max. 9.9 9.9 30 55 850
Unit V V mA mA mW mVPP V A A
LUMINANCE INPUT (Pin 9) No input signal * During burst period * Out of burst period
5
CONTRAST CONTROL (Pin 16)
BRIGHTNESS CONTROL (Pin 36)
SATURATION CONTROL INPUT (Pin 27)
RGB CLAMP CAPACITORS (Pins 4-7-39)
RGB OUTPUTS (Pins 4-6-7)
4/12
2102-02.TBL
THERMAL DATA
2102-01.TBL
STV2102
DC AND AC ELECTRICAL CHARACTERISTICS (continued) (VCC = 9V, Tamb = 25oC unless otherwise specified)
Symbol -I4-6-7 VM4-6-7 Vblank 4-6-7 Parameter Test Conditions Min. Typ. Max. 2 7.8 0.7 20 0.5 5 2 Unit mA V V mV mV/ C MHz dB
o
RGB OUTPUTS (Pins 4-6-7) (continued) Individual Output Sinking Current Maximum Peak White Level Blanking Level Relative Variation in Black Level with Various CONT. SAT. BRIG between the 3 channels Black Level Thermal Drift Bandwith - 3dB Tracking between Luminance and Chrominance Signals over 10dB Contrast Control
Vtemp BW4-6-7
RGB INPUTS (Pins 37-39-40) VBW37-39-40 Maximum Input Level (B to W) Vclamp Clamp Level
37-39-40
2 Contrast max -3dB 1.5 8 12 4 0.7 2.1 0V @ Pin 35 50 50 1.75 250 200 100 2 3 900 30 Change of burst over whole ACC Control Range < 1dB No input signal During burst gate period Out of burst gate period 30 8 3.5 250 1 400 5 700 50
V V MHz dB
BW 37-39-40 Bandwidth GCTR RGB Contrast Control Range G37-39-40 RGB Gain FAST BLANKING INPUT (Pin 35) VTH1-35 VTH2-35 I35 Tswitch T blank First Threshold (switching) Second Threshold (switching) Input Current Switching Delay Blanking Delay Leakage Current Reference Voltage CO Reference refered to Leakage Current Reference Low 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 the ACC Control Range ACC Control Range Input Impedance DC Operating Voltage Charging Current Leakage Current Control Current Leakage Current Catching Range
V V A ns ns V mV A A V V mVPP mVPP dB k V A A A A Hz 5/12
CATHODE CURRENT INPUT (Pin 42)
V4-6-7 V18 Vburst-18 GACC R 18 VDC-18 I30 Ii30 I34 Ii34 CR33
CHROMINANCE INPUT (Pin 18)
ACC CAPACITOR (Pin 30)
PLL LOOP FILTER (Pin 34)
CHROMAXTAL (Pin 33)
2102-04.TBL
STV2102
DC AND AC ELECTRICAL CHARACTERISTICS (continued) (VCC = 9V, Tamb = 25oC unless otherwise specified)
Symbol Vburst-22 VOFF-32 VON-32 VINH-32 I32 Ii32 Vnom-32 VDC-20 R20 VREF-12 V12 F 11 CR11 Iiow-10 Ihigh-10 Parameter Output Burst Amplitude (PAL mode) Collor off Voltage Color on Voltage PAL Flip-flop Inhibition Level Control Current Leakage Current Voltage with Nominal Input Signal DC Operating Voltage Input Impedance Voltage Reference Video Input Signal Frequency after Divider Frequency Control Range after Divider Low 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) Vcc Start Level Vcc Stop Level 2 Phase Range Output Pulse Width Frame Synchro. Window Output Voltage (Open collector) Test Conditions Within ACC Control Range No chroma signal Min. Typ. 2.2 4.9 5.4 3.2 250 5 6.0 No input Signal PAL standard I12 = - 1A 0.6 2.2 8 0.8 1.0 2.5 Max. Unit Vpp V V V A A V V k V VPP kHz Hz mA mA s V VPP V A V Vpp V A s s V V V s lines line V SUBCARRIER OUTPUT (Pin 22) KILLER CAPACITOR (Pin 32)
DELAYED CHANNEL INPUT (Pin 20)
COMPOSITE VIDEO BASE BAND SIGNAL (Pin 12)
SCANNING XTAL (Pin 11) 15.625 700 0.15 0.40 4 0.6 1.5 -0.4 5 0.6 1.5 -0.4 Appli. Adjust. 2 26 I15 = 10mA 4 28 1 6.8 6.2 10 10.5 248 to 352 1 5 6 29
PLL LOOP FILTER (Pin 10)
DELAYED LINE FLYBACK INPUT (Pin 13) VTH-13 V13 VDC-13 I13 VTH-2 V2 VDC-2 I2 Ph22 T 15 Vlow-15 Vstart -15 Vstop-15 t15 T 14 Tsync Vlow-14
DIRECT BLANKING INPUT (Pin2)
HORIZONTAL OUTPUT (Pin 15)
VERTICAL OUTPUT (Pin 14)
2102-05.TBL
6/12
STV2102
Figure 1 : Pins 3-8-38-42 (COG, COB, COR, ICAT)
3-8-38
42
Figure 2 : Pins 37-39-40 (RIN, GIN, BIN)
Figure 3 : Pins 4-6-7 (ROUT, GOUT, BOUT)
4-6-7 37-39-40
2102-04.EPS
Figure 4 : Pin 9 (YIN)
Figure 5 : Pin 10 (SLPF)
10
9
2102-06.EPS
7/12
2102-07.EPS
2102-05.EPS
2102-03.EPS
STV2102
Figure 6 : Pin 11 (SXTL) Figure 7 : Pin 12 (CVBS)
VREF
11
2102-08.EPS
12
2102-09.EPS
Figure 8 : Pins 2-13 (BLK, LFB)
Figure 9 : Pins 14-15 (VOUT, HOUT)
2-13
14 15
2102-10.EPS
Figure 10 : Pins 16-27 (CTR, SAT)
Figure 13 : Pin 18 (PALIN)
V REF2
18
16
V REF
2102-12.EPS
8/12
2102-13.EPS
2102-11.EPS
STV2102
Figure 11 : Pin 20 (DLI) Figure 12 : Pin 21 (PS)
20
21
V REF1
2102-14.EPS
Figure 14 : Pin 32 (CKP)
Figure 15 : Pin 22 (DLO)
32
2102-16.EPS
22
2102-17.EPS
9/12
2102-15.EPS
STV2102
Figure 16 : Pin 30 (ACC)
30
Figure 17 : Pin 36 (BRIG)
Figure 18 : Pin 33 (CXTL)
33
36
Figure 19 : Pin 34 (CLPF)
2102-19.EPS
Figure 20 : Pin 35 (FBL)
Base Current Compensatio n
Phase Comparator
34
35
10/12
2102-21.EPS
2102-22.EPS
2102-20.EPS
2102-18.EPS
Vcc
39k HVcc SAT Vcc FBL
RIN
Vcc 39k
100nF
100F
39k
22nF CTR 75 47k MUTE
22nF 15k 15k
GIN
BIN
ICAT
22k
Vcc
BRIG
22k 22k 15k
75 75
75 100nF 100nF 100nF
APPLICATION DIAGRAM
100F
22nF 22nF
BIN
ICAT
22nF
COR COG
COB
RIN
GIN
BRIG
Vcc HVcc FBL 1 41 5 35
37 39 38 27
470 4 470 SAT
40 3 36
8
42
CTR 16
1k
10nF
CVBS
CXTL
DL & TRAP
YIN 9
33
1k
4.43MHz
ROUT
GOUT 470
V CC
6 7
CLPF
470k
BOUT V CC
1k min.
RAMP GENERATOR (TDA1771)
10k
34 30 VOUT
32 14
33nF
ACC CKP
47nF
3.3nF
680k
6.8nF
VERTICAL DEFLECTION
6.8nF
CKS
STV2102
23
V CC
1k min.
+V
1k
PALIN
10nF 18
CVBS 10H
15
11
HOUT
390 SXTL 47nF 1k
500kHz
120pF
Vcc
PS
21
10 DLO
SLPF
LINE YOKE
3.9k
2.2F
22 20
DLI 10nF
GND
12 24
GND
CVBS
500k
3k
10nF
1F
100pF 19
13 LFB
EHT TRANSFORMER 2
BLK V1 CVBS
5.6k
V2
10nF
330
DL
4.7nF
390 1k 1k
LBF
750
10H 10H
STV2102
11/12
2102-22.EPS
STV2102
PACKAGE MECHANICAL DATA 42 PINS - PLASTIC SHRINK DIP
e4 F
a1
A
I
b2
b e3
e
L
b1
Stand-off
E
D
42
22
1
21
Dimensions A a1 b b1 b2 b3 D E e e3 e4 F i L
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 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 I C 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.
2
12/12
SDIP42.TBL
0.570 0.200
PMSDIP42.EPS

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