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STV2112B
BUS-CONTROLLED PAL/SECAM TV PROCESSOR
. . . . . . . . . .
I2C BUS CONTROL OF ALL FUNCTIONS INTEGRATED FILTERS (TRAP, BANDPASS, CLOCHE) INTEGRATED LUMINANCE DELAY LINE PAL/SECAM CHROMA DEMODULATORS AUTOMATIC CUT-OFF CURRENT LOOP TWO RGB INPUTS SVHS SWITCH TWO PLLs HORIZONTAL DEFLECTION VERTICAL COUNT DOWN VERY FEW EXTERNAL COMPONENTS
SHRINK42 (Plastic Package) ORDER CODE : STV2112B
DESCRIPTION The STV2112B is a fully bus controlled IC for TV luma, chroma and deflection processing. Used with STV8224 (PIF/SIF/switches), TDA1771 or TDA8174 (frame booster),STV2180 (delay line), it allows to design a PAL/SECAM(BGDKIL) set with very few external components and no adjustment. PIN CONNECTIONS
CHROMA/SCANNING GROUND XTAL2 S ELECTION 4.43MHz XTAL CHROMA LOOP FILTER ACC CONTROL CAPACITOR DATA WIRE I2C BUS CLOCK WIRE I2C BUS FILTER TUNING CLOCHE FILTER TUNING VOLUME AND MUTE CONTROL VOLTAGE IF STANDARD AND S WITCH S ELECTION OS D BLUE INPUT OS D GREEN INPUT OS D RED INPUT OS D RGB INSERTION EXTERNAL BLUE INPUT EXTERNAL GREEN INPUT EXTERNAL RED INPUT EXTERNAL RGB INSERTION CVBS OR LUMINANCE INPUT BUS/VIDEO GROUND GND2 S ELECT CXTL1 CLPF ACC SDA S CL FTUN1 FTUN2 VOL S WI BOS D GOSD ROS D FBOSD BEXT GEXT REXT FBEXT Y/CVBS GND1 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 VCC2 BYO RYO RYI BYI LFB/SC HOUT VOUT VAMP S LPF S XTL BCL ICAT RO GO BO CR CB CG CHR/SVHS VCC1
CHROMA/SCANNING/BUS S UP P LY B-Y OUTPUT R-Y OUTP UT R-Y INPUT B-Y INPUT LINE FLYBACK INPUT/SANDCASTLE OUTP UT HORIZONTAL OUTP UT VERTICAL OUTP UT AMPLITUDE CONTROL VOLTAGE S CANNING LOOP FILTER 503kHz CERAMIC BEAM CURRENT LIMITER CATHODE CURRENT MEASUREMENT RED OUTP UT GREEN OUTP UT BLUE OUTP UT RED CUT-OFF CAPACITOR BLUE CUT-OFF CAPACITOR GREEN CUT-OFF CAPACITOR CHROMINANCE INPUT/SVHS S ELECTION VIDEO S UPP LY
2112B-01.EPS
August 1998
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SHARP
BRIG
SAT
CONT
STD
DRIVE
PLL
SELECT
2
SECAM DEMODULATORS
DELAY LINE INTERFACE
SECAM KILLER
PAL KILLER
PAL DEMODULATORS
BUS DECODER
CUT-OFF
2/24
EXTERNAL OSD B FB
STV2112B
BLOCK DIAGRAM
FILTER CLOCHE TUNING TUNING
VCC1
R-Y B-Y FB
VCC2
R
B
G
R
G
8
9
22 15 14 13 12
42
39
38
19
18
17
16
STV2112B
25 CB 24 CG 26 CR 30 ICAT
Y
Contrast
29 R 28 G 27 B 31 BCL BLANKING AUTO CUT-OFF BLACK & WHITE CONTROL
Y/CVBS
20 RGB SWITCHES
DELAY LINE SHARPNESS MATRIX SATURATION BRIGHTNESS CONTRAST
CHR
23
FILTER TUNING TRAP BANDPASS CLOCHE SVHS SWITCH
CHR
35 VOUT FRAME SCANNING 34 VAMP
ACC
5
ACC
STANDARD IDENTIFICATION
SYNC SEPARATOR
VIDEO IDENTIFICATION
CXTAL1 3
LINE SCANNING
36 HOUT
4
B-Y
GND1 GND2
40
41
21
1
6
SDA
7
SCL
11
SWI
10
VOL
32
33
SXTAL SLPF
37
LFB/SC
CLPF
R-Y
2112B-02.EPS
STV2112B
FUNCTIONAL DESCRIPTION 1 - DEFLECTION CIRCUIT Note : [X,Y] : line number referred to the internal line counter numbering - Fully integrated synch. separator, with a low pass filter, a black level alignment of the Y/CVBS input, a slicing level at 2/3,1/3of the sync. pulse amplitude. - Frame sync. pulse locked on 2 fH frequency to perfect interlace. - 500kHz VCO with an externalceramic resonator. - Two phase locked loops * the first PLL locks the VCO on the video signal frequency, * the second PLL compensates the line transistor storage time. - Three time constants for the first PLL. * thelong timeconstantis usedfor normaloperation * the short time constant is automatically used during the frame retrace and in search mode of VCR when the frame pulse is outside [258,264] and [309,314]. * very long time constant when no video recognition Time constants in normal operation (automatic selection of time constants) : 50Hz input signal : - short time constant : [306, 21] - long time constant : the rest of the field * inhibition of the first PLL : the first locked loop is opened from line 309 to line 4.5 (or 314) in 50Hz mode. * the time constantsvalues are chosenby means of external components. * possibility to force the short time constant through the bus. * possibility to force the very long time constant through the bus. - Video identification : coincidence detector between the line synchro top and a line frequency window from the firstPLL. The video identification status is available in the output register of the I 2C bus decoder. - Generation of burst gate pulses and line frequency signals from the first PLL to drive the chroma and video circuits. The burst gate pulse is also sent to the sandcastle generator. - Frame synchro window : [248, 352] catching - Field frequency selection windows : [288, 352] 50Hz mode selection window - frame blanking pulse : from line 0 to 21 in 50Hz mode - Vertical output pulse is 10.5 lines long. - Horizontal output pulse : 28s line pulse on an open collector output; - Start up circuit : the horizontal output is at a high level when VCC increases from 0 to 6.8V. On shutting down, horizontal pulses are disabled when VCC is below 6.2V. Soft-start circuit : the duty cycle of the horizontal output is 78 % (Thigh/(Thigh + TLow))when VCC1 is lower than (0.75 x VCC2), during the rising time. During the falling time, a 78% duty cycle HOUT pulse is provided when VCC1 is lower than (0.60 x VCC2). Possibility to disable the horizontal output pulse through the bus (force a high level on HOUT). Horizontal position adjustment controlled by bus. Bus controlledoutput voltage to adjustthe vertical amplitude ; this voltagepermitsto adjustthe slope of the vertical sawtooth generated by the external frame booster. Bus controlled vertical position ; the high level of the vertical pulse permits to adjust the vertical position. Bus controlled 4/3-16/9 selection : the low level of the vertical pulse is 0.1V when 16/9 is selected, 2V when 4/3 is selected. Combined flyback input and sandcastle output (Pin 37). Two thresholds on LFB/SCO Pin : The lowest threshold (0.7V) permits to extract the line blanking pulse ; the highest threshold (2V) permits to extract the line pulse for PLL2. The sandcastle signal at Pin 37 is used to control the external baseband chroma delay line.
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-
-
2 - FILTERS - Integrated trap filter : Q = 1.7 at sharp. min 1 Q= Q = 3.0 at sharp. max f-3dB fo - f-3dB fo Center frequency : - 4.43MHz for PAL - 4.25MHz, for SECAM (f-3dB = 3MHz; -20dB rejection between 4.1MHz and 4.4MHz) - Integrated chroma bandpass : Q = 3.5, Center frequency= 4.43MHz - Integrated cloche filter for SECAM : Q = 16, Center frequency = 4.286MHz - Integrated delay line : Bandwidth = 8MHz - Integrated low pass filter for deflection part. - Allfilters aretunedwitha referencephaselockedloop. The PLL consists ofa lowpass filter, a phasecomparator,a loopfilter (with an externalcapacitor).The reference signal is the continuouscarrier wave from the VCO (4.43MHz). The PLL adjusts the center frequency of the lowpass so that it is equal to the referencesignal.ThetuningvoltageofthePLLisused to adjust all otherfilters. The cloche filter is fine tuned with a secondPLLoperatingduring frame retrace.
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STV2112B
FUNCTIONAL DESCRIPTION (continued) 3 - VIDEO CIRCUIT - 2 RGB inputs : RGB (OSD) input has priority against the RGBext. Maximum contrast on RGB (OSD). -12dB range contrast control on RGBext. Possibility to disable the RGBext insertion through the bus. - Oversize blanking capability on FB(OSD)(Pin15) input. The RGB ouputs will be blanked when the voltage on Pin 15 will exceed the second threshold at 1.9V (blanking threshold) : the whole field is blanked but not the inserted cut-off pulses. The OSD insertion threshold is 0.7V. - Automatic cut-off current loop : 2V cut-off range. Sequential cut-off current measurement during the three lines after the frame blanking signal. Leakage current measurement during the frame blanking, memorization on an internal capacitor. - Warm up detector. - Beam current limiter DC voltage input. The beam current limiter control voltage will act on contrast first, then the brightness will be decreased when contrast attenuationreaches -5dB. - Bus control of the red, green and blue channel gain (White point adjustment) - Bus control of the red and green DC levels (black point adjustment) - PAL and SECAM matrix). - Switch-off of the trap filter in SVHS mode. - Bus controlled contrast on luminance (20dB range) - Bus controlled saturation (50dB range) - Bus controlled brightness : 40% range at maximum contrast. - Bus controlled sharpness (peaking) ; sharpness active in PAL standard only. - Noise coring function on sharpness. 4 - CHROMA CIRCUIT 4.1 - PAL/SECAM Decoders - SVHS inputs ; bus controlled SVHS mode. - 30dB range ACC - Use of an external base band delay line (STV2180 recommended) - Automatic standard identification, with possibility to force the standard through the bus. 4.2 - PAL Decoder - ACC done by peak detector on synchronous demodulation of the burst - Fully integrated killer functions. - VCO using crystal 4.43MHz XTAL SPECIFICATION : Frequency : 4.433619MHz(PAL/SECAM)
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Vibration mode : Fondamental,series resonance (no serial capacitor) Motional capacity : 13fF 3fF Resonance resistance : < 70 Shunt capacitance : < 7pF Spurious response : No resonance at 3*fo 3kHz - 0o and 90o demodulation angles for PAL 4.3 - SECAM Decoder - ACC - Fully integrated killer - Two integrated discriminators with two PLL - Integrated deemphasis 4.4 - Standard Identification - Sequential identification. - 2 identification sequences : PAL mode, SECAM mode - PAL priority - the SECAM mode is locked after two identified SECAM sequences - the SECAM mode can be selected in 50Hz only - Blanking of the (R-Y) and B-Y) outputs during color search mode. 5 - OTHER FUNCTIONS : IF CONTROLS 5.1 - Volume Control and Mute The volume control voltage range on Pin 10 is from 0.5V to 5V. A low voltage on Pin 10 (below 0.2V) will mute the FM demodulator of the IF circuit STV8224. It will put the volume at the minimum level and thus there will be no soundeither in TV mode or SCART mode. The volume control voltage and the mute level are controlled by the bus. 5.2 - IF Standard and TV/SCART Mode Selection The selection of IF standard (positive or negative vision modulation)and theTV/SCARTmode is controlled by the bus. The selection is convertedin four voltages on Pin 21. The lowest voltage selects the TV mode and the NEGATIVE vision modulation. The highest voltage (open collector output with internal pull-up resistor to VCC) selects the SCART mode and the NEGATIVE vision modulation. The two other intermediate voltages select either TV mode and POSITIVE vision modulation or SCART mode and POSITIVE vision modulation.
STV2112B
I2C BUS SPECIFICATION General Comments Slave Address : 8A (HEX) (1000101X) WRITE MODE DATA FORMAT
Slave Address 1000 1010 (8A) Register Address XXXS SSSS (from 00 to 11HEX) Data XXSS SSSS (6 significant bits Max.)
The not used bits in data byte must be put to "0".
READ MODE DATA FORMAT
Slave Address 1000 1011 (8B)
MSB on the left, LSB on the Right.
Data SSSS SSSS (8 significant bits)
MSB X X X X X X X X
LSB
X : not significant bit - S : significant bit
Input Signals (Write Mode) VIDEO
Address Dec (HEX) 0 (00) 0 (00) Contrast External Fast Blanking Enable Description Data (Bits) 5 1 Comments XXX0 0000 = -20dB XXX1 1111 = 0dB XXSX XXXX 0 = RGBext insertion enable 1 = RGBext insertion disable XX00 0000 = -44dB XX11 1111 = +6dB XXX0 0000 = -20% XXX1 1111 = +20% XXSX XXXX 0 = Normal mode 1 = Blanking active XX00 0000 = -6dB XX11 1111 = 0dB XX00 0000 = +150mV XX11 1111 = -150mV XX00 0000 = -6dB XX11 1111 = 0dB XX00 0000 = +150mV XX11 1111 = -150mV XX00 0000 = -6dB XX11 1111 = 0dB XXXX X000 = Peaking Min. XXXX X111 = Peaking Max.
1 (01) 2 (02) 2 (02)
Saturation Brightness RGB Outputs Blanking
6 5 1
3 (03) 4 (04) 5 (05) 6 (06) 7 (07) 8 (08)
Red Drive Adjust (white point red adjust) Red Cut-off Adjust Green Drive Adjust (white point green adjust) Green Cut-off Adjust Blue Drive Adjust (white point blue adjust) Sharpness
6 6 6 6 6 3
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STV2112B
I2C BUS SPECIFICATION (continued) Input Signals (Write Mode) (continued) CHROMA
Address Dec (HEX) 9 (09) 10 (0A) Not used Standard Selection 4 XXXX SSSS 0000 = PAL/XTAL1 (4.43MHz) 0100 = SECAM/XTAL1 011X = Auto/90o 0001 = Not allowed 0010 = Not allowed 0011 = Not allowed 0101 = Not allowed 1000 = Not allowed 1001 = Not allowed 1010 = Not allowed 1011 = Not allowed 111X = Not allowed 1100 = Not allowed 1101 = Not allowed 10 (0A) SVHS Selection 1 XXXS XXXX 0 = No SVHS (CVBS mode) 1 = SVHS mode Description Data (Bits) Comments
DEFLECTION
Address Dec (HEX) 11 (0B) 12 (0C) 13 (0D) 13 (0D) Description Horizontal Shift Vertical Amplitude Vertical Position 50/60Hz Selection Data (Bits) 6 6 3 2 Comments XX00 0000 = -2.5s XX11 1111 = +2.5s XX00 0000 = 1.2V XX11 1111 = 6.2V XXXX X000 = 3.8V XXXX X111 = 6.3V XXXS SXXX 00 = Automode 01 = Not allowed 10 = 50Hz 11 = Not allowed XXSX XXXX 0 = Normal mode 1 = HOUT disabled (high level) XXXX XXSS 00 = Normal mode (Auto) 01 = Short time constant 10 = Very long time constant 11 = PLL1 inhibition (open loop) XXXX XSXX 0 = Interlace 1 = DE-Interlace XXXX SXXX 0 = 4/3 (VOUT-Low = 2V) 1 = 16/9 (VOUT-Low = 0.1V)
13 (0D)
Horizontal Output (HOUT) Safety
1
14 (0E)
PLL1 Time Constant
2
14 (0E)
Interlace
1
14 (0E)
4/3 16/9 Selection
1
6/24
STV2112B
I2C BUS SPECIFICATION (continued) Input Signals (Write Mode) (continued) OTHERS
Address Dec (HEX) 15 (0F) 16 (10) Volume Mute Description Data (Bits) 6 1 Comments XX00 0000 = 0.5V XX11 1111 = 5V XXXX XXXS 0 = Mute not active 1 = Mute active XXXX XSSX 00 = INT/FM (negative) 01 = INT/AM (positive) 10 = EXT/AM (positive) 11 = EXT/FM (negative) XXXX SXXX S = 0 default value XXXS XXXX 0 = lines 23/24/25 in50Hz, 1 = Not allowed XXSS SSSS 00 0000 = Test mode not active
16 (10)
IF Standard / AV Switch
2
16 (10) 16 (10) 17 (11)
Not Used Cut-off Pulse Position Only for Test
1 1 6
Output Signals (Read Mode) READ REGISTER
Description Field Frequency Data (Bits) 1 XXXX XXXS 1 = 50Hz 0 = not 50Hz XXXX XXSX 1 = No Identification 0 = Video Identification XXXX XSXX 1 = No SVHS 0 = SVHS XXSS SXXX 111 = PAL/XTAL1 (4.43MHz) 110 = not to be used 101 = SECAM/XTAL1 011 = not to be used 010 = not to be used X00 = Color off SSXX XXXX 11 = STV2118A/2116/2112 10 = STV2116A 01 = STV2112B 00 = STV2216 Comments
Video Identification
1
SVHS Status
1
Standard Status
3
Circuit Identification
2
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STV2112B
I2C BUS SPECIFICATION (continued) Bus Register Initial Conditions Not used bits are preset to "0".
Address Dec (HEX) 0 (00) 1 (01) 2 (02) 3 (03) 4 (04) 5 (05) 6 (06) 7 (07) 8 (08) 9 (09) 10 (0A) 11 (0B) 12 (0C) 13 (0D) 14 (0E) 15 (0F) 16 (10) 17 (11) Data Initial Value XX01 0000 XX10 0000 XX01 0000 XX10 0000 XX10 0000 XX10 0000 XX10 0000 XX10 0000 XX00 0100 XX10 0000 XX00 0110 XX10 0000 XX10 0000 XX00 0100 XX00 0000 XX10 0000 XX00 0000 XX00 0000 Mid. saturation Mid. brightness ; Blanking : normal mode Mid. RED drive adjust Mid. RED cut-off adjust Mid. GREEN drive adjust Mid. GREEN cut-off adjust Mid. BLUE drive adjust Mid. sharpness Not used Auto search color standard ; no SVHS Mid. horizontal shift Mid. vertical amplitude Mid. vertical position ; Auto search field frequency ; HOUT : normal mode PLL1 time constant : normal mode ; Interlace ; 4/3 selection Mid. volume Mute not active ; INT/FM IF mode ; Not used ; Cut-off pulses on lines 23/24/25 in 50Hz Test mode not active Comments Mid. contrast ; RGBext insertion enable
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STV2112B
ABSOLUTE MAXIMUM RATINGS
Symbol V CC Toper Tstg Operating Temperature Storage Temperature Parameter Supply Voltage (Pins 22-42) (VCC1(22) VCC2(42)) Value 12 0, +70 -55, +150 Unit
o o
C C
Symbol R th (j-a)
Parameter Junction-ambient Thermal Resistance (PD = 1.3W) Typ.
Value 40
Unit
o
C/W
ELECTRICAL CHARACTERISTICS (VCC = 9V, T amb = 25oC, unless otherwise specified)
Symbol SUPPLY VCC1 VCC2 ICC1 ICC2 Ptot DC20 V20PP GY CTRY -I20 I20 V23 VCLIP23 VDC23 VTH23 Ilow23 Vmin23 GACC Killer Video Supply Voltage (VCC1 VCC2) Chroma & Scanning & Bus Supply Voltage VCC1 Current Consumption VCC2 Current Consumption Power Total Dissipation PAL mode 8.1 8.1 55 50 9 9 75 70 1305 9.9 9.9 95 90 1700 V V mA mA mW Parameter Test Conditions Min. Typ. Max. Unit
LUMINANCE /CVBS INPUT (Pin 20) DC Operating Voltage CVBS or Y Input Voltage Luma Gain Luma Contrast Range Negative Clamping Current Clamping Current During sync. pulse Contrast Max., Drive Max. 18 -20 No input signal 3.55 3.7 1 4.1 20 -25 5 22 -35 10 3.95 1.41 V VPP dB A A VPP VPP 1.6 0.5 0V at Pin 23 0.7 120 30 Change of Burst over whole ACC control range < 2dB Burst amplitude on Pin 20 or Pin 23, S/N > 40dB 30 5 +3 170 V V A mVPP dB mVPP dB
COMBINED CHROMINANCE AND SVHS SELECTION INPUT (Pin 23) Chrominance Input Voltage Input Amplitude before Clipping DC Voltage SVHS Threshold Voltage Output Current Minimum Burst Signal Amplitude within the ACC Control Range ACC Control Range Colour Killer on Threshold Colour killer off hysteresis RGB INPUTS (Pins 12-13-14-16-17-18) VCLAMP VRGB GRGB CTR RGB Black IRGB Clamp Level RGB Input Voltage RGB Gain RGB Contrast Range Difference of Black Level of Internal and External signals at the Outputs Clamping Current 60 100 Contrast Max., Drive Max. On external RGB (16-17-18) Contrast Max., Drive Nom. 1.5 1.8 0.7 4.0 11.5 200 140 2.1 1 V VPP dB mV A
2112B-03.TBL
Burst Amplitude, 100/75 colour bar 1.0 SVHS mode
0.3
9/24
2112B-02.TBL
THERMAL DATA
2112B-01.TBL
V
STV2112B
ELECTRICAL CHARACTERISTICS (VCC = 9V, T amb = 25oC, unless otherwise specified) (continued)
Symbol VTHFB1-15 VTHFB2-15 Tswi1-15 Tswi2-15 IFB-15 VTHFB-19 IFB-19 Tswi-19 VLEAK VCoff VSB ILow-30 I24-25-26 VTH1-31 VTH2-31 VTH3-31 CTR-BCL VTH4-31 BRIG-BCL CLP31 VBW IS27-28-29 VM27-28-29 VBlack27-28 -29 RCO DCCO DRIV R BRIG V CTR VSAT VREL Parameter Insertion Threshold Voltage Blanking Threshold Voltage Insertion Switching Delay Blanking Switching Delay Input Current Threshold Voltage Input Current Switching Delay Leakage Current Reference Voltage Cut-off Current Reference Voltage refered to Leakage Current Reference Start Beam Current Detection Reference Voltage Source current Control Current Contrast Attenuation Starting Brightness Attenuation Starting Contrast Attenuation Ending Contrast Attenuation at V 31=VTH3-31 Brightness Attenuation Ending Brightness Attenuation at V31=VTH4-31 High Clamping Voltage Output Signal Amplitude (B to W) 0.7V B/W at Pin 20, Drive Max., Contrast Max., Brightness Typ., Saturation Typ. 1.5 No load On Red and Green ouputs Pins 29 and 28, Drive Max. Relative to B/W amplitude on R,G,B outputs at Contrast Max. 30 0.3 2 Test Conditions Min. 0.5 1.6 Typ. 0.7 2.0 30 50 Max. 0.85 2.4 Unit V V ns ns A V A ns V mV V A 130 A V V V dB V % V V OSD FAST BLANKING INPUT (Pin 15)
0V at Pin 15 0.5 0V at Pin 19 30 1.80 250 2.1 150 70 2.3 250 100 6.0 5.5 5.0 14.0 4.5 100 6.5 2.85 0.7
50 0.85 50
EXTERNAL FAST BLANKING INPUT (Pin 19)
CATHODE CURRENT INPUT (Pin 30) 2.0
AUTOMATIC CUT-OFF CAPACITORS (Pins 24-25-26) BEAM CURRENT LIMITER VOLTAGE (Pin 31)
RGB OUTPUTS (Pins 27-28-29)
Output Sinking Current Maximum Peak White Level Blanking Level Cut-off Output Range Cut-off Adjustment Range Drive Adjustment Range Brightness Range Variation of Black Level with Contrast Variation of Black Level with Saturation Relative Variation in Black Level between the three Channels - during Variation of Contrast(20dB) - during Variation of Brightness (total range) - during Variation of Vcc (+/-10%) Black Level Thermal Drift
2 7.8 0.45 2.6 300 6.5 40
0.6
mA V V V mV dB % mV mV
50 100 50
VTemp
1
mV/oC
10/24
2112B-04.TBL
Drive Max.
0 10 5
20 40
mV mV mV
STV2112B
ELECTRICAL CHARACTERISTICS (VCC = 9V, Tamb = 25oC, unless otherwise specified) (continued)
Symbol Track Bwidth Parameter Tracking between Luminance and Chrominance Signals Bandwith of Output Signals at -3dB - CVBS Input (no SVHS) PAL - CVBS Input(no SVHS) SECAM - Y Input SVHS Mode - RGB Inputs Signal to Noise Ratio of Output (VPP/VRMS) 4.43MHz PAL Signal on Y/CVBS Input Residual Frequency at fOSC at 2 fOSC and Higher Harmonics Tuning Voltage Range (Pin 8) Cloche Tuning Voltage Range (Pin 9) Delay Time PAL Delay Time SECAM Delay Time PAL Delay Time SECAM Center Frequency Gain Variation from Min. to Max. Sharp Amplitude Variation compared to B/W Amplitude Variation compared to B/W Amplitude Variation compared to B/W Coring Range compared to B/W Trap Frequency PAL Trap Frequency SECAM Trap Quality Factor (Q=1/(fo/f-3dB - f-3dB/fo)) Color Subcarrier Rejection Color Rejection SECAM Mode SVHS mode SVHS mode CVBS mode CVBS mode SVHS mode at fSharp 2T pulse, Sharp Max. 2T pulse, Sharp Max. 2T pulse, Sharp Max. 330 500 390 550 Test Conditions From Max. contrast (0dB) to -10dB contrast fOSC = 4.43MHz, Sharp Typ. fOSC = 4.43MHz, no sharp No trap Filter, Sharp Typ. 8 No signal on R-Y, B-Y inputs Contrast Max., Drive Max., Saturation Typ., Sharp Typ., Bandwidth 5MHz PAL/SECAM PAL/SECAM 50 3.6 3.0 8 Min. Typ. Max. Unit 2 dB RGB OUTPUTS (Pins 27-28-29) (continued)
S/N
MHz MHz MHz MHz dB
Res FILTERS VTUN1 VTUN2 td1p td2 td3p td4 fSharp GSharp Overshoot Pre-shoot After-shoot Coring fTrap QTrap CRejPN CrejS
25 10 3.2 to 4.8 2.5 to 6.5 370 540 425 590 2.5 6 150 -15 -40 10 -0.2 -0.2 fOSC 4.25 1.7 3
100 50
mVPP mVPP V V
Y DELAY LINE 400 580 460 630 ns ns ns ns MHz dB % % % % +0.2 +0.2 MHz MHz dB dB dB
SHARPNESS CIRCUIT (PAL only)
Y TRAP FILTER
Sharpness Min. Sharpness Max. PAL mode, Sharpness Min. at 4.1MHz at 4.4MHz
20 18 18 -0.25 2.8 fosc 3.5 4.286 16 250 0.2 600
CHROMINANCE BANDPASS fC QBP fCloche QCloche IC5 IL5 CR2-3 Center Frequency Bandpass Quality Factor Resonant Frequency Cloche Quality factor Charging Current Leakage Current Catching Range During burst gate window +0.25 MHz 4.2 MHz A A Hz
CLOCHE FILTER 14 18
ACC CAPACITOR (Pin 5) 1
CHROMA PLL (Pins 2-3) Q = 4.43MHz (Pin 3)
11/24
2112B-05.TBL
STV2112B
ELECTRICAL CHARACTERISTICS (VCC = 9V, T amb = 25oC, unless otherwise specified) (continued)
Symbol PLL LOOP FILTER (Pin 4) IC4 IL4 Control Current Leakage Current During burst gate window 400 5 A A Parameter Test Conditions Min. Typ. Max. Unit
COLOR DIFFERENCE OUTPUT SIGNALS (Pins 40-41) PAL DEMODULATOR R-Y Output signal Amplitude (Pin 40) VP40 |RED-BLUE| axes = 90o 100/75 colour bar VP41 B-Y Output Signal Amplitude (Pin 41) |RED-BLUE| axes = 90o 100/75 colour bar GPAL Gain Ratio of both Demodulators (B-Y)/(R-Y) |RED-BLUE| axes = 90o 100/75 colour bar VPNDC Output Voltage when colour killed SECAM DEMODULATORS VS40 R-Y Output Signal Amplitude (Pin 40) 100/75 Colour Bar VS41 B-Y Output Signal Amplitude (Pin 41) 100/75 Colour Bar GSECAM Gain Ratio of both Demodulators (B-Y)/(R-Y) VSDC Output Voltage when colour killed PAL /SECAM MATRIX G/R (G-Y)/(R-Y) G/B (G-Y)/(B-Y) SATURATION CONTROL SATMax. SATNom. SATMin. DCRYI DCBYI VRYI VBYI ICL38-39 VSync fH50 fRang ffree Maximum Saturation Control (3F) Nominal Saturation Control (20) Minimum Saturation Control(00) DC Voltage Pin 39 DC Voltage Pin 38 Input Signal Amplitude Pin 39 Input Signal Amplitude Pin 38 Clamping Current Sync. Pulse Amplitude Frequency after Divider Frequency Control Range Free Running Frequency when PLL1 open 1VPP CVBS on Pin 20 1VPP CVBS on Pin 20 1VPP CVBS on Pin 20 No colour No colour 100/75 color bar 100/75 color bar During burst key On Pin 20 50Hz input signal Low Frequency High Frequency Value 03hex in register 0Ehex 5 +6.5 0 -44 2.8 2.8 1.05 1.33 150 300 15625 14850 16300 15800 8 dB dB dB V V VPP VPP A mV Hz Hz Hz Hz 0.40 0.50 1.15 5.6 0.8 1.00 1.00 5.4 -0.6 -0.28 0.52 0.66 1.27 5.8 1.05 1.33 1.27 5.6 -0.51 -0.19 0.60 0.80 1.45 6.0 1.20 1.40 1.35 5.8 -0.4 -0.15 VPP VPP V VPP VPP V -
COLOUR DIFFERENCE INPUT SIGNALS (Pins 38-39) 2.6 2.6 3.0 3.0
SYNC. SEPARATOR 50 HORIZONTAL OSCILLATOR 14500 16100 15000 15200 16500
FIRST LOOP FILTER (Pin 33) ILOW-33 IHIGH I V LOW CRQ 2 tshift Long Time Constant Output Current Short Time Constant Output Current Very Long Time Constant Control Range from Start of Horizontal Output to Flyback Horizontal Shift Range Horizontal position centered 4 0.12 0.35 0.02 0.15 0.45 0.03 2 to 14 0.18 0.55 0.05 mA mA mA
2112B-06.TBL
SECOND CONTROL LOOP s s
12/24
STV2112B
ELECTRICAL CHARACTERISTICS (VCC = 9V, T amb = 25oC, unless otherwise specified) (continued)
Symbol Parameter Test Conditions Min. Typ. Max. Unit LINE FLYBACK INPUT/SANDCASTLE OUTPUT (Pin 37) VSCO VCL37 tWBG tdBG VTH1-37 VTH2-37 I37 Output Voltage during Burst Key Clamped Input Voltage during Flyback Burst Key Pulse Width Delay of Start of Burst Key to Start of Sync. Blanking Threshold Voltage PLL2 Threshold Voltage referred to Line Level VCL37 Input Current PLL2VTH/VCL37 During flyback pulse 0.1 0.5 3.7 4.0 5.0 2.5 3.8 5.2 0.7 80 1 0.9 3.1 3.9 V V s s V % mA s V V V 10 12 VCC2 = 9V, VCC1 < 6.0V (VCC1 rising) 78 mA V %
HORIZONTAL OUTPUT (Pin 36) TW36 V Low36 VCC Start VCC Stop I36 Max. V36 Max. Tss Output Pulse Width Voltage Output Low VCC Start Level VCC Stop Level : hysteresis Maximum Allowed Output Current Maximum Allowed Output Voltage (open collector) Output Pulse Duty Cycle in soft-start mode (Thigh/(Thigh + Tlow)) Normal operation R pull-up = 1k Voltage on Pin 42 Voltage on Pin 42, VCCstart - VCCstop 26 28 1.1 6.7 0.60 30
VERTICAL OUTPUT (Pin 35) TW35 VLow35 FR35 fFR-50 VHIGH35 Isink Output Pulse Width Low Level Output Voltage 4/3 Low Level Ouput Voltage 16/9 Locking Range Free Frequency (no Video Signal) High Level Range (vertical position control) Output Sinking Current 50Hz XXXXX000(bin) in Reg. 0Dhex XXXXX111(bin) in Reg. 0Dhex 4/3 16/9 3.5 5.7 XXXX0XXX (bin) in Reg. 0Ehex XXXX1XXX (bin) in Reg. 0Ehex 1.5 248 314 3.8 6.3 0.2 0.5 4.2 7.0 10.5 2 0.1 2.5 0.5 352 Lines V V Lines Lines V V mA mA
VERTICAL AMPLITUDE CONTROL (Pin 34) V34R Output Voltage Range XX000000(bin) in Reg. 0Chex XX111111(bin) in Reg. 0Chex 1.0 5.6 1.2 6.2 1.5 6.7 V V
VOLUME CONTROL AND MUTE (Pin 10) VR10 MUT Output Voltage Range (volume control) Output Voltage when MUTE XX000000(bin) in Reg. 0Fhex XX111111(bin) in Reg. 0Fhex 0.35 4.2 0.5 4.7 0.02 0.7 5.2 0.1 V V V
2112B-07.TBL
13/24
STV2112B
ELECTRICAL CHARACTERISTICS (VCC = 9V, Tamb = 25oC unless otherwise specified) (continued)
Symbol VTV/NEG VTV/POS VStart/Pos VStart/Neg R TV/Neg RTV/Pos R Scart/Pos RScart/Neg
2
Parameter Output Voltage in TV Mode and Negative Vision Modulation Output Voltage in TV Mode and Positive Vision Modulation Output Voltage in SCART Mode and Positive Vision Modulation Output Voltage in SCART Mode and Negative Vision Modulation (open collector mode) Output Resistance in TV Mode and Negative Vision Modulation Output Resistance in TV Mode and Positive Vision Modulation Output Resistance in Scart Mode and Positive Vision Modulation Output Resistance in Scart Mode and Negative Vision Modulation (pull-up resistor to VCC) Threshold Voltage Capacitance of each Pin Leakage Current
Test Conditions VCC = 9V VCC = 9V VCC = 9V VCC = 9V
Min.
Typ. Max. Unit 0.1 0.7 3.80 6.10 V V V V k k k
IF STANDARD CONTROL & SWITCH SELECTION (Pin 11)
2.90 5.20 7.88
3.37 5.62 9 200 6.7 11 18
I C BUS INPUTS (Pins 6-7)
2112B-08.TBL
VTH6-7 C L6-7 ILe ak6-7
1.5 Write Mode, 0 level on SDA or SCL
2.25 5
3 10 50
V pF A
14/24
STV2112B
USER CONTROLS Figure 1 : Contrast Control Curve
% 1 20 1 00 80 60 10 0 40 20
2112B-03.EPS
Figure 2 : Saturation Control Curve
% 25 0 20 0 15 0
50
2112B-04.EPS 2112B-06.EPS
0 00 10 Co de (HEX) 1F
0 00 10 20 Code (HEX) 30 3F
Figure 3 : Brightness Control Curve
% 30 20 10
Figure 4 : Peaking Control (2T overshoot)
% 160 150 140 130
0 120 (10) (20)
2112B-05.EPS
110 100 90 0 1 2 3 4 5 6 7 Code (HEX)
(30) 00 10 Co de (HEX) 1F
Figure 5 : Volume Control Curve
Ou tput Voltage (P in 10) 6 5 4 3 2 1 00 10 20 Code (HEX) 30 3F
2112B-07.EPS
0
15/24
STV2112B
INPUT/OUTPUT PIN CONFIGURATION Figure 6 : Pins 2, 3 - CXTL1, SELECT Figure 7 : Pin 4 - CLPF
VCC2
VCC2
Pins 2-3
4
2112B-08.EPS
GND2
Figure 8 : Pin 5 - ACC
VCC2
Figure 9 : Pin 6 - SDA
VCC2
6
5
2112B-10.EPS 2112B-11.EPS
GND2
GND2
Figure 10 : Pin 7 - SCL
VCC2
Figure 11 : Pin 8 - FTUN1
VCC2 VCC1
8
7
2112B-12.EPS
GND2
GND2
16/24
2112B-13.EPS
2112B-09.EPS
G ND2
STV2112B
INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 12 : Pin 9 - FTUN2
VCC2
Figure 13 : Pin 10 - Volume
VCC2
9
10
2112B-14.EPS
GND2
GND2
Figure 14 : Pin 11 - SWI
VCC2
Figure 15 : Pins 12,13,14,16,17,18- RGB Inputs
VCC1
Pins 12-13-14 16-17-18
11
2112B-16.EPS
GND2
GND1
Figure 16 : Pins 15,19 - FBOSD, FBEXT
VCC1
Figure 17 : Pin 20 - Y/CVBS
VCC 1 VCC 2
20
P ins 15-19
2112B-18.EPS
GND1
GND1
17/24
2112B-19.EPS
2112B-17.EPS
2112B-15.EPS
STV2112B
INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 18 : Pin 23 - CHR/SVHS
VC C 2 VCC 1
Figure 19 : Pins 24, 25, 26 - CG, CR, CB
VCC1
P ins 24-25-2 6
23
30
2112B-20.EPS
GND2
GND1
Figure 20 : Pins 27, 28, 29 - BO, GO, RO
VCC1
Figure 21 : Pin 30 - ICAT
VCC1
Pins 27-28-29
30
2112B-22.EPS
GND1
GND1
Figure 22 : Pin 31 - BCL
VCC1
Figure 23 : Pin 32 - SXTL
VCC2
VCC1
31
32
2112B-24.EPS
GND1
GND2
18/24
2112B-25.EPS
2112B-23.EPS
2112B-21.EPS
STV2112B
INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 24 : Pin 33 - SLPF
VC C 2
Figure 25 : Pin 34 - VAMP
VCC2
33
34
2112B-26.EPS
GND2
GND2
Figure 26 : Pin 35 - VOUT
VCC2
Figure 27 : Pin 36 - HOUT
VCC2
35
36
2112B-28.EPS
GND2
GND2
Figure 28 : Pin 37 - LFB/SC
VCC2
Figure 29 : Pins 38, 39 - BYI, RYI
VCC 2 VCC 1
37
P ins 38-39
2112B-30.EPS
GND2
GND2
19/24
2112B-31.EPS
2112B-29.EPS
2112B-27.EPS
STV2112B
INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 30 : Pins 40, 41 - RYO, BYO
VCC2
Figure 31 : Pins 42, 22 - VCC2, VCC1
VCC2 42
P ins 40-41
VCC1 22
1 G ND2
2112B-32.EPS
21 GND1
2112B-33.EPS
GND2
20/24
STV2112B
APPLICATION DIAGRAM
470F 16V 9V 1 100nF 2 3.58MHz 1 GND2 VCC 2 42 3 10nF 100nF 330k 18k 4.43MHz TO P in 42 270k 100 S DA I2 C BUS 100 S CL 47pF VOL TO STV8224 SWI 100nF 3.9k 390 11 S WI 22nF FROM OS D + TXT 3.9k 390 22nF 13 GOS D 22nF 14 ROS D 3.9k 390 22nF 16 BEXT 2.2k 1k OBLK (ove rs ize blanking) 22nF 18 REXT CB 25 100nF 19 FBEXT 75 220nF Y/CVBS Input 1VP P 75 20 Y/CVBS CHR/S VHS 23 1k 75 CG 24 10nF CHROMA INPUT (S-VHS) 22nF 17 GEXT CR 26 100nF BO 27 100nF 15 FBOS D GO 28 470 12 BOS D 10 VOL 100nF 9 FTUN2 8 FTUN1 VOUT 35 7 S CL HOUT 36 47pF 6 S DA LFB/S C 37 9V 1k TO DEFLECTION S TAGES 1F 50V 4.7k 4. 7k 680 LFB (He a ter) 1N4148 18k P in 42 503kHz S XTL 32 3.3nF 22k 100nF BCL 31 P in 22 ICAT 30 47k 470 RO 29 470 TO CRT AMPLIFIERS 220k 1N4148 FROM HORIZONTAL STAGE 1N4148 9V 4.7nF 33nF 5 ACC BYI 38 4 CLP F RYI 39 10nF 1F 7 8 3.3pF 2 S ELECT BYO 41 4 10nF 3 CXTL1 RYO 40 5 10nF 15k 4.7nF 6 13 9V 14
S T V 2 1 8 0
12 100nF 11 100nF 10
10
47F 16V
9 1nF 4.02k 1%
S T V 2 1 1 2 B
VAMP 34
S LP F 33
21 GND1
VCC 1 22
FROM EXTERNAL RGB
75 100nF
470F 16V 75
9V
75
Notes : - STV2112B requires only 1 XTAL (4.43MHz). - Recommended 4.43MHz XTAL is JAUCH Number 10080082. - XTAL2 selection pin (Pin 2) : we recommend the connection to VCC2 (Pin 42). In the case of STV2112B version, this pin can be left open.
21/24
2112B-34.EPS
STV2112B
90o CRT APPLICATIONS VERTICAL STAGE
22 2W +12V 1000F 25V 47F 25V 3.9k Vertical Yoke 470
270
1000F 25V 2.2 220nF 1 OUT
VOUT (From STV2112B Pin 35) 15k
1.8k
1.2 2 V+ 4.7k 3 V.SYNC
VAMP (From STV2112B Pin 34)
620k 4 V.SIZE 1k 100k 1N4148 BC547 47nF 330k 15k 15k 10k 8 FEEDB +9V 56k 560k 470k 100k BC547 BC557 4.7F 100k
2112B-35.EPS
100nF
+9V 27k 160k 1.3k 47nF 6 SAW 5 GND
7 BUFF
T D A 1 7 7 1
1N4004 +24V 1000F 25V
100F 35V
9 VCC 10 FLYB
OPTIONAL 4/3 - 16/9 SWITCHING
22/24
STV2112B
110o CRT APPLICATIONS : Vertical System with East-West
1 INC43 22pF +24V 2 VCC
C9 1000 F 35V C23 100F
3 FLYBACK
4 GND
+12V R3 330 Vertical Yoke R19 1.2 R2 10 3W C5 2200 F C4 1000 F 25V R12 1.5 C10 220nF +24V D2 1N4148 R26 10k D1 1N4004
5 OUT
T D A 8 1 7 2
6 OUT VCC
R18 330 SCL R17 330 SDA R30 470 3 VRE T C34 100pFF 4 REG R81 2.4k +9V C20 47 F T5 BC547 VCC 5 VC C 2 S DA 1 S CL
R31 100
R20 3.6
R28 100
7 IN+
S ENS M 16 C36 10nF SENS P 15 C39 10nF FROUT 14 R43 1k VCC EWO UT 13 C37 1nF EWIN 12 R50 1.5k OBLK 11 R57 22k VCC OBLK HFLY VC C D8 1N4148 R45 6.2k C46 3.3nF
D4 1N4148
+12V
C31 1.5nF
R36 3.3k
From S TV2112B VOUT Pin35
+12V
C44 220nF
S T V 2 1 4 5
T6 TIP122
R47 39k R41 3.3k
E/W MODULATOR C68 4.7 F 160V
6 LPF R52 4.7k C56 220nF C48 4.7nF 7 CVER T C51 33nF 8 GND
To S TV2112B Pin15
HFLY 10
BREATH 9
R55 100k
R56 220k
R46 100k BCL
2112B-36.EPS
C54 1nF
R54 680k
23/24
STV2112B
PACKAGE MECHANICAL DATA 42 PINS - PLASTIC SHRINK DIP
E E1
A1
A2
B
B1
e
L
A
e1 e2
D c E 42 22
.015 0,38 Gage Plane
1
21
SDIP42
e3 e2
Dimensions A A1 A2 B B1 c D E E1 e e1 e2 e3 L
Min. 0.51 3.05 0.36 0.76 0.23 37.85 15.24 12.70
Millimeters Typ.
Max. 5.08 4.57 0.56 1.14 0.38 38.35 16.00 14.48
Min. 0.020 0.120 0.0142 0.030 0.0090 1.490 0.60 0.50
Inches Typ.
Max. 0.200 0.180 0.0220 0.045 0.0150 1.510 0.629 0.570
3.81 0.46 1.02 0.25 38.10 13.72 1.778 15.24
0.150 0.0181 0.040 0.0098 1.5 0.540 0.070 0.60
2.54
3.30
0.10
0.130
Information furnished is believed to be accurate and reliable. However, STMicroelectronics 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 STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical comp onents in lifesupport devicesor systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics (c) 1998 STMicroelectronics - All Rights Reserved Purchase of I2C Components of STMicroelectronics, conveys a license under the Philips I 2C Patent. Rights to use these components in a I 2C system, is granted provided that the system conforms to the I2C Standard Specifications as defined by Philips. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
24/24
SDIP42.TBL
18.54 1.52 3.56
0.730 0.060 0.140
PMSDIP42.EPS

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