STV2118B ,BUS CONTROLLED PAL/SECAM/NTSC TV PROCESSORFUNCTIONAL DESCRIPTION1 - DEFLECTION CIRCUIT chroma and video circuits. The burst gate pulseis also ..
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T7289A , DS1 LINE INTERFACE
T-7290A-EL , T7290A DS1/T1/CEPT Line Interface
T7290A-EL , T7290A DS1/T1/CEPT Line Interface
T73227 , 27 MHz VCXO Clock Generator IC
T73227 , 27 MHz VCXO Clock Generator IC
T73227 , 27 MHz VCXO Clock Generator IC
STV2118B
BUS CONTROLLED PAL/SECAM/NTSC TV PROCESSOR
STV2118BBUS CONTROLLED PAL/SECAM/NTSC TV PROCESSOR
June 1996 22
GND1
Y/CVBS
BEXT
FBOSD
ROSD
GOSD
BOSD
SWI
VOL
FTUN2
FTUN1
SCL
SDA
ACC
CLPF
CXTL1
CXTL2
GND2 VCC2
BYO
RYO
LFB/SC
HOUT
VOUT
VAMP
SLPF
SXTL
BCL
ICAT
CHR/SVHS
VCC1
CHROMA/SCANNING/BUS SUPPLY
BYI
RYI
B-Y OUTPUT
R-YOUTPUT
R-YINPUT
B-Y INPUT
LINEFLYBACKINPUT/SANDCASTLE OUTPUT
HORIZONTALOUTPUT
VERTICALOUTPUT
AMPLITUDE CONTROLVOLTAGE
SCANNINGLOOP FILTER
503kHzCERAMIC
BEAMCURRENT LIMITER
CATHODE CURRENT MEASUREMENT
RED OUTPUT
GREEN OUTPUT
BLUE OUTPUT
RED CUT-OFF CAPACITOR
BLUE CUT-OFF CAPACITOR
GREEN CUT-OFF CAPACITOR
CHROMINANCE INPUT/SVHS SELECTION
VIDEO SUPPLYBUS/VIDEO GROUND
CVBSOR LUMINANCE INPUT
EXTERNALBLUEINPUT
OSDRGB INSERTION
OSDBLUEINPUT STANDARDANDSWITCHSELECTION
VOLUME ANDMUTE CONTROL VOLTAGE
FILTER TUNING
DATAWIREI2CBUS
ACC CONTROLCAPACITOR
CHROMALOOP FILTER
3.58MHzXTAL
CHROMA/SCANNING GROUND
4.43MHzXTAL
CLOCKWIREI2CBUS
CLOCHE FILTER TUNING
OSD GREEN INPUT
OSDRED INPUT
GEXT
REXT
FBEXT
EXTERNAL GREEN INPUT
EXTERNALRED INPUT
EXTERNALRGB INSERTION
2118B-01.EPS
PIN CONNECTIONS
SHRINK42(Plastic Package)
ORDER CODE: STV2118B2C BUS CONTROLOF ALL FUNCTIONS. INTEGRATED FILTERS
(TRAP, BANDPASS, CLOCHE).INTEGRATED LUMINANCE DELAY LINE.PAL/SECAM/NTSCCHROMA DEMODULATORS.AUTOMATIC CUT-OFF CURRENT LOOP.TWO RGB INPUTS.SVHS SWITCH.TWO PLLs HORIZONTAL DEFLECTION.VERTICAL COUNT DOWN.VERY FEW EXTERNAL COMPONENTS
DESCRIPTIONThe STV2118Bisa fully bus controlledICforTV
luma, chroma and deflection processing.
Used with STV8224 (PIF/SIF/switches), TDA1771 TDA8174 (frame booster), STV2180(delay line), allowsto designa PAL/ SECAM/ NTSC
(BGDKILMN)set with very few external compo-
nents andno adjustment.
1/25
CHR RG BFB RGB
Y/CVBS
CHR
ACC
CXTAL2
CXTAL1
ICAT
BCL
VOUT
HOUT
SXTALSLPF LFB/SCGND2 SWIVOLCLPF R-Y B-Y
FILTER
TUNING VCC1
SDA SCL
CLOCHE
TUNING
SHARP
VCC2
GND1
FILTER TUNING
TRAP BANDPASS
CLOCHE
SVHS SWITCH
DELAY
LINE
SHARPNESS
MATRIX
SATURATION
BRIGHTNESS
CONTRAST
RGB SWITCHES
Contrast BLANKING
AUTOCUT-OFF
BLACK&WHITE
CONTROL 42 1918171639 38
R-Y B-Y
EXTERNAL OSD141312
VAMP34
FRAME
SCANNING
LINE
SCANNING 36 1 373332
SYNC
SEPARATOR
STANDARD
IDENTIFICATIONACC5
PAL/
NTSC
KILLER
SECAM
KILLER
SECAM
DEMODULATORS
PAL/NTSC
DEMODULATORS
DELAYLINE INTERFACE
440 41
BUS
DECODER 7 11 10
HUE BRIGSATCONT STDDRIVE
VIDEO
IDENTIFICATION
CUT-OFF
STV2118B
PLL
2118B-02.EPS
BLOCK DIAGRAM
STV2118B2/25
FUNCTIONAL DESCRIPTION- DEFLECTION CIRCUIT
Note: [X,Y]: line number referredtothe internal
line counter numbering Fully integrated synch. separator, withalow pass
filter,a black level alignmentof theY/CVBS input, slicing levelat 2/3,1/3ofthe sync. pulse ampli-
tude. Frame sync. pulse lockedon2fH frequencyto
perfect interlace. 500kHzVCO withan external ceramic resonator. Two phase locked loopsthe first PLL locksthe VCOonthe video signal
frequency,the secondPLL compensates theline transistor
storage time. Three time constantsforthe first PLL.the long time constantisusedfor normalopera-
tionthe short time constantis automatically used
duringthe frame retrace andin search modeof
VCR whenthe framepulseis outside [258,264]
and [309,314]. very long time constant whenno video recogni-
tion
Time constantsin normal operation
(automatic selectionof time constants):
50Hz input signal: short time constant: [306,21] long time constant: the restofthe field
60Hz input signal: short time constant: [0,16] long time constant: the restofthe field inhibitionof thefirst PLL:
the first locked loopis opened fromline 309to
line 4.5(or314)in 50Hz mode.Itis openedfrom
line 258toline5.5(or 264)in 60Hz mode.the time constants valuesare chosen bymeans external components. possibilityto force the short time constant
throughthe bus. possibilityto forcethe very long time constant
throughthe bus. Video identification: coincidence detector be-
tweenthe line synchrotop anda line frequency
windowfrom thefirstPLL.The videoidentification
statusis availableinthe output registeroftheI2C
bus decoder. Generationof burst gate pulses and line fre-
quency signals fromthe first PLLto drivethe
chroma and video circuits. The burst gate pulse alsosenttothe sandcastle generator. Frame synchro window:
[248, 352] catching Field frequency selection windows:
[248, 288] 60Hz mode selectionif two
consecutive frame pulses occur
insidethis window,otherwise 50Hz
mode selection.
[288, 352] 50Hz mode selection window frame blanking pulse:
fromline0to21in 50Hz mode
fromline0to16in 60Hz mode Vertical output pulseis 10.5 lines long. Horizontal output pulse: 28μs line pulseonan
open collector output; Startup circuit:the horizontal outputisata high
level when VCC increases from0to 6.8V.On
shutting down, horizontal pulses are disabled
when VCCis below 6.2V. Soft-start circuit:the duty cycleofthe horizontal
outputis78% (Thigh/(Thigh+ TLow)) whenVCC1 lower than (0.75x VCC2), during the rising
time.
Duringthe falling time,a 78% duty cycle HOUT
pulseis provided when VCC1is lower than
(0.60x VCC2). Possibilityto disablethe horizontal output pulse
throughthebus (forcea high levelon HOUT). Horizontal position adjustment controlledby bus. Buscontrolled outputvoltageto adjustthe vertical
amplitude;this voltagepermitsto adjust theslope thevertical sawtooth generatedbythe external
frame booster. Buscontrolled vertical position;the high levelof
the vertical pulse permitsto adjustthe vertical
position. Bus controlled 4/3-16/9 selection:thelow levelthe verticalpulseis 0.1Vwhen 16/9is selected, when4/3is selected. Combined flyback input and sandcastle output
(Pin 37).
Two thresholdson LFB/SCOPin: The lowest
threshold (0.7V) permitsto extracttheline blank-
ing pulse;the highest threshold (2V) permitsto
extracttheline pulsefor PLL2.
The sandcastlesignalatPin37is usedto control
the externalbaseband chroma delay line.
STV2118B3/25
FUNCTIONAL DESCRIPTION (continued)
- FILTERS Integrated trap filter:= 1
f−3dB− f−3dB=1.7at sharp.min=3.0at sharp. max
Center frequency:- 4.43MHz,
3.58MHzfor PAL, NTSC 4.25MHz,for SECAM
(f-3dB= 3MHz; -20dB
rejection between 4.1MHz
and 4.4MHz) Integrated chroma bandpass:=3.5
Center frequency: 4.43MHz, 3.58MHz Integrated cloche filterfor SECAM:16
Center frequency: 4.286MHz Integrated delay line:
Bandwidth= 8MHz Integratedlow pass filterfor deflection part.All filtersare tunedwitha referencephaselocked
loop.
The PLL consistsofa lowpass filter,a phase
comparator,a loop filter(an external capacitor).
The reference signalis the continuous carrier
wave fromthe VCO (4.43MHzor 3.58MHz). The
PLL adjuststhe center frequencyofthe lowpass thatitis equalto the reference signal. The
tuningvoltageof thePLLisusedto adjustallother
filters. The cloche filterisfine tuned witha second
PLLoperating during frame retrace.
- VIDEO CIRCUIT2 RGB inputs: RGB (OSD) input has priority
againstthe RGBext. Maximum contraston RGB
(OSD). -12dB range contrast controlon RGBext.
Possibilityto disable the RGBext insertion
throughthe bus. Oversize blanking capabilityon FB(OSD)(Pin15)
input. The RGB ouputswillbe blanked whenthe
voltageonPin15will exceedthe second thresh-
oldat 1.9V (blanking threshold):the whole field blankedbutnotthe inserted cut-off pulses. The
OSD insertion thresholdis 0.7V. Automatic cut-off current loop:2V cut-off range.
Sequential cut-off current measurement during
the three lines afterthe frame blanking signal.
Leakage current measurement duringthe frame
blanking, memorizationonan internal capacitor. Possibilityto force throughthe busthe inserted
cut-off pulseson lines 23/24/25(CCIR)in 50Hz
and 60Hz mode. Warmup detector. Beam current limiterDC voltage input.
The beam current limiter control voltagewillact contrast first, thenthe brightnesswillbede-
creasedwhen contrastattenuationreaches-5dB. Bus controlofthe red, green and blue channel
gain (White point adjustment) Buscontrolofthered and greenDC levels (black
point adjustment) PAL and SECAM matrix, specific NTSC matrix
when demodulation anglesare(0o ,104o). Switch-offofthe trap filterin SVHS mode. Bus controlled contraston luminance
(20dB range) Bus controlled saturation (50dB range) Bus controlled brightness: 40% rangeat maxi-
mum contrast. Bus controlled sharpness (peaking); sharpness
activein PAL/NTSC standard only. Noise coring functionon sharpness.
STV2118B4/25
FUNCTIONAL DESCRIPTION (continued)
- CHROMACIRCUIT
4.1- PAL/SECAM/NTSC Decoders SVHS inputs; bus controlled SVHS mode. 30dB range ACC Useofan external base band delay line
(STV2180 recommended) Automatic standard identification, with possibility forcethe standard throughthe bus.
4.2- PAL/NTSC Decoders ACC doneby peak detectoron synchronousde-
modulationofthe burst Fully integrated killer functions. VCO using two standard crystals: 4.43MHz and
3.58MHz. One crystalis internally selectedde-
pendingonthe standard selection.
XTAL SPECIFICATION:
Frequency:
4.433619MHz(PAL/SECAM)
3.579545MHz(NTSCM)
3.575611MHz(PALM)
3.582056MHz(PALN)
Vibrationmode: Fondamental,series resonance
(no serial capacitor)
Motional capacity: 13fF ±3fF
Resonance resistance:< 70Ω
Shunt capacitance:< 7pF
Spuriousresponse:No resonanceat3*fo ±3kHzo and ±90o demodulationanglesfor PAL
-(0o,90o)or(0o ,104o)= demodulationanglesfor
NTSC. The selectionof90oor 104ois made
throughthe bus. Bus control Hue adjustmentin NTSC mode.
4.3- SECAM Decoder ACC Fully integrated killer Two integrated discriminators withtwo PLL Integrated deemphasis
4.4- Standard Identification Sequentialidentification.3 identification sequences: XTAL1 (4.43MHz)
modeto identify either PALor NTSC, XTAL2
(3.58MHz) modeto identify either PALor NTSC,
SECAM mode (XTAL1 selection). PAL/NTSCprioritythe SECAM modeis locked after two identified
SECAM sequencesthe SECAM mode canbe selectedin 50Hz only Blankingofthe (R-Y) and B-Y) outputs during
color search mode.
- OTHER FUNCTIONS:IF CONTROLS
5.1- Volume Control and MuteThe volumecontrol voltage rangeonPin 10is from
0.5Vto5V.Alow voltageonPin10 (below 0.2V)
will mute the FM demodulatorof theIF circuit
STV8224.Itwillputthe volumeat the minimum
level and thus therewillbeno sound eitherinTV
modeor SCART mode.
The volume control voltage andthe mute levelare
controlledbythe bus.
5.2-IF Standard and TV/SCART Mode SelectionThe selectionofIF standard (positiveor negative
visionmodulation)and theTV/SCARTmodeis con-
trolled bythe bus. The selectionis convertedin four
voltagesonPin21.
The lowest voltage selectstheTV mode andthe
NEGATIVE vision modulation.
The highest voltage (open collector output with
internal pull-up resistorto VCC) selectsthe SCART
mode andthe NEGATIVE vision modulation.
The two other intermediate voltages select either mode and POSITIVE vision modulationor
SCART mode and POSITIVE vision modulation.
STV2118B5/25
2
C BUS SPECIFICATIONGeneral CommentsSlave Address:8A (HEX) (1000101X)
WRITE MODE DATA FORMAT
Slave Address Register Address Data1000 1010
(8A)
XXS SSSS
(from00to 11HEX)
XXSS SSSS significantbits Max.)
Thenot usedbitsin data byte mustbeputto”0”.
READ MODE DATA FORMAT
Slave Address Data1000 1011
(8B)
SSSS SSSS significantbits)
MSBontheleft, LSBonthe Right.
MSB LSB XXX XX XX:not significantbit-S: significantbit
Input Signals (Write Mode)
VIDEO
Address
Dec (HEX) Description Data
(Bits) Comments(00) Contrast 5 XXX0 0000= -20dB
XXX1 1111=0dB(00) External Fast Blanking Enable 1 XXSX XXXX= RGBext insertion enable= RGBext insertion disable(01) Saturation 6 XX00 0000= -44dB
XX11 1111= +6dB(02) Brightness 5 XXX0 0000= -20%
XXX1 1111= +20%(02) RGB Outputs Blanking 1 XXSX XXXX= Normal mode= Blanking active(03) Red Drive Adjust (white pointred adjust) 6 XX00 0000= -6dB
XX11 1111=0dB(04) Red Cut-off Adjust 6 XX00 0000= +150mV
XX11 1111= -150mV(05) Green Drive Adjust (white point green adjust) 6 XX00 0000= -6dB
XX11 1111=0dB(06) Green Cut-off Adjust 6 XX00 0000= +150mV
XX11 1111= -150mV(07) Blue Drive Adjust (white pointblue adjust) 6 XX00 0000= -6dB
XX11 1111=0dB(08) Sharpness 3 XXXX X000= PeakingMin.
XXXX X111= Peaking Max.
STV2118B6/25
2
C BUS SPECIFICATION (continued)
Input Signals (Write Mode) (continued)
CHROMA
Address
Dec (HEX) Description Data
(Bits) Comments(09) Hue 6 XX00 0000=-45o
XX11 1111=+45o (0A) Standard Selection 4 XXXX SSSS
0000= PAL/XTAL1 (4.43MHz)
0001= PAL/XTAL2 (3.58MHz)
0010= NTSC/XTAL1/90o
0011= NTSC/XTAL2/90o
0100= SECAM/XTAL1
1010= NTSC/XTAL1/104o
1011= NTSC/XTAL2/104o
011X= Auto/90o
111X= Auto/104o
0101=Not allowed
1000=Not allowed
1001=Not allowed
1100=Not allowed
1101=Not allowed (0A) SVHS Selection 1 XXXS XXXX=No SVHS (CVBS mode)= SVHS mode
DEFLECTION
Address
Dec (HEX) Description Data
(Bits) Comments (0B) Horizontal Shift 6 XX00 0000= -2.5μs
XX11 1111= +2.5μs (0C) Vertical Amplitude 6 XX00 0000= 1.2V
XX11 1111= 6.2V (0D) Vertical Position 3 XXXX X000= 3.8V
XXXX X111= 6.3V (0D) 50/60Hz Selection 2 XXXS SXXX= Auto= 60Hz= 50Hz= Auto (0D) Horizontal Output (HOUT) Safety 1 XXSX XXXX= Normalmode= HOUT disabled (high level) (0E) PLL1 Time Constant 2 XXXX XXSS= Normal mode (Auto)= Short time constant= Very long time constant= PLL1 inhibition (open loop) (0E) Interlace 1 XXXX XSXX= Interlace= DE-Interlace (0E) 4/3 16/9 Selection 1 XXXX SXXX=4/3 (VOUT-Low=2V)= 16/9 (VOUT-Low= 0.1V)
STV2118B7/25
2
C BUS SPECIFICATION (continued)
Input Signals (Write Mode) (continued)
OTHERS
Address
Dec (HEX) Description Data
(Bits) Comments (0F) Volume 6 XX00 0000= 0.5V
XX11 1111=5V(10) Mute 1 XXXX XXXS= Mutenot active= Mute active(10) IF Standard /AV Switch 2 XXXX XSSX= INT/FM (negative)= INT/AM (positive)= EXT/AM (positive)= EXT/FM (negative)(10) Not Used 1 XXXX SXXX=0 default value(10) Cut-off Pulse Position 1 XXXS XXXX= lines23/24/25 in50Hz, lines 18/19/20in
60Hz= lines23/24/25 bothin 50Hzand 60Hz(11) Onlyfor Test 6 XXSS SSSS 0000= Test modenot active
Output Signals (Read Mode)
READ REGISTER
Description Data (Bits) CommentsField Frequency 1 XXXX XXXS= 50Hz= 60Hz
Video Identification 1 XXXX XXSX=No Identification= Video Identification
SVHS Status 1 XXXX XSXX=No SVHS= SVHS
Standard Status 3 XXSS SXXX
111= PAL/XTAL1 (4.43MHz)
110= NTSC/XTAL1
101= SECAM/XTAL1
011= PAL/XTAL2 (3.58MHz)
010= NTSC/XTAL2
X00= Coloroff
Circuit Identification 2 SSXX XXXX= STV2118B/2116/2112= STV2116A= STV2112A= STV2216
STV2118B8/25
2
C BUS SPECIFICATION (continued)
Bus Register Initial ConditionsNot usedbitsare presetto ”0”.
Address
Dec (HEX)
Data Initial
Value Comments(00) XX01 0000 Mid. contrast; RGBext insertion enable(01) XX10 0000 Mid. saturation(02) XX01 0000 Mid. brightness; Blanking: normal mode(03) XX10 0000 Mid. RED drive adjust(04) XX10 0000 Mid. RED cut-off adjust(05) XX10 0000 Mid. GREEN drive adjust(06) XX10 0000 Mid. GREEN cut-off adjust(07) XX10 0000 Mid. BLUE drive adjust(08) XX00 0100 Mid. sharpness(09) XX10 0000 Mid.hue(0A) XX00 0110 Auto search color standard;no SVHS(0B) XX10 0000 Mid. horizontalshift (0C) XX10 0000 Mid. vertical amplitude (0D) XX00 0100 Mid. vertical position; Auto searchfield frequency; HOUT: normal mode(0E) XX00 0000 PLL1 time constant: normal mode; Interlace;4/3 selection(0F) XX10 0000 Mid. volume(10) XX00 0000 Mutenot active; INT/FMIF mode;Not used;
Cut-off pulseson lines 23/24/25in 50Hzor lines 18/19/20in 60Hz(11) XX00 0000 Test modenot active
STV2118B9/25
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value UnitVCC Supply Voltage (Pins 22-42) (VCC1(22)≤ VCC2(42))12 V
Toper Operating Temperature 0,+70 oC
Tstg Storage Temperature -55, +150 oC
2118B-01.TBL
THERMAL DATA
Symbol Parameter Value UnitRth(j-a) Junction-ambient Thermal Resistance(PD= 1.3W) Typ. 40 oC/W
2118B-02.TBL
ELECTRICAL CHARACTERISTICS (VCC =9V, Tamb =25oC, unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. UnitSUPPLY
VCC1 Video Supply Voltage (VCC1≤ VCC2) 8.1 9 9.9 V
VCC2 Chroma& Scanning&Bus Supply Voltage 8.1 9 9.9 V
ICC1 VCC1 Current Consumption 55 75 95 mA
ICC2 VCC2 Current Consumption PAL/NTSC mode 50 70 90 mA
Ptot Power Total Dissipation 1305 1700 mW
LUMINANCE /CVBS INPUT(Pin20)
DC20 DC Operating Voltage No input signal 3.55 3.7 3.95 V
V20PP CVBSorY Input Voltage 1 1.41 VPP Luma Gain Contrast Max., Drive Max. 4.1 -
CTRY Luma Contrast Range 18 20 22 dB
-I20 Negative Clamping Current During sync. pulse -20 -25 -35 μA
I20 Clamping Current 5 10 μA
COMBINED CHROMINANCE AND SVHS SELECTION INPUT(Pin23)
V23 Chrominance Input Voltage Burst Amplitude,
100/75 colourbar
0.3 VPP
VCLIP23 Input Amplitude before Clipping 1.0 VPP
VDC23 DC Voltage SVHS mode 1.6 V
VTH23 SVHS Threshold Voltage 0.5 0.7 V
Ilow23 Output Current 0Vat Pin23 120 170 μA
Vmin23 Minimum Burst Signal Amplitude withinthe
ACC Control Range mVPP
GACC ACC Control Range Changeof Burst over whole
ACC control range<2dB dB
Killer Colour Killeron Threshold
Colour killeroff hysteresis
Burst amplitudeonPin20or
Pin23,S/N> 40dB
mVPP
RGB INPUTS (Pins 12-13-14-16-17-18)
VCLAMP Clamp Level Contrast Max., Drive Nom. 1.5 1.8 2.1 V
VRGB RGB Input Voltage 0.7 1 VPP
GRGB RGB Gain Contrast Max., Drive Max. 4.0 -
CTRRGB RGB Contrast Range On external RGB (16-17-18) 11.5 dB
ΔBlack Differenceof Black Levelof Internaland
External signals atthe Outputs
200 mV
IRGB Clamping Current 60 100 140 μA
2118B-03.TBL
STV2118B10/25
ELECTRICAL CHARACTERISTICS (VCC =9V, Tamb =25oC, unless otherwise specified) (continued)
Symbol Parameter TestConditions Min. Typ. Max. UnitOSD FAST BLANKING INPUT(Pin15)
VTHFB1-15 Insertion Threshold Voltage 0.5 0.7 0.85 V
VTHFB2-15 Blanking Threshold Voltage 1.6 2.0 2.4 V
Tswi1-15 Insertion Switching Delay 30 ns
Tswi2-15 Blanking Switching Delay 50 ns
IFB-15 Input Current 0VatPin15 50 μA
EXTERNAL FAST BLANKING INPUT(Pin19)
VTHFB-19 Threshold Voltage 0.5 0.7 0.85 V
IFB-19 Input Current 0VatPin19 50 μA
Tswi-19 Switching Delay 30 ns
CATHODE CURRENT INPUT(Pin30)
VLEAK Leakage Current Reference Voltage 1.80 2.0 V
VCoff Cut-off Current Reference Voltage
referedto Leakage Current Reference
250 mV
VSB Start Beam Current Detection
Reference Voltage
2.1 2.3 V
ILow-30 Source current 150 250 μA
AUTOMATIC CUT-OFF CAPACITORS (Pins 24-25-26)
I24-25-26 Control Current 70 100 130 μA
BEAM CURRENT LIMITER VOLTAGE(Pin31)
VTH1-31 Contrast Attenuation Starting 6.0 V
VTH2-31 Brightness Attenuation Starting 5.5 V
VTH3-31 Contrast Attenuation Ending 5.0 V
CTR-BCL Contrast Attenuationat V31=VTH3-31 14.0 dB
VTH4-31 Brightness Attenuation Ending 4.5 V
BRIG-BCL Brightness Attenuationat V31=VTH4-31 100 %
CLP31 High Clamping Voltage 6.5 V
RGB OUTPUTS (Pins 27-28-29)
VBW Output Signal Amplitude(BtoW) 0.7V B/WatPin 20,Drive Max.,
Contrast Max., Brightness Typ.,
Saturation Typ.
2.85 V
IS27-28-29 Output Sinking Current 1.5 2 mA
VM27-28-29 Maximum Peak White Level 7.8 V
VBlack27-28-29 Blanking Level No load 0.3 0.45 0.6 V
RCO Cut-off Output Range 2 2.6 V
DCCO Cut-off Adjustment Range On Redand Green ouputs
Pins29and28, Drive Max.
300 mV
DRIV Drive Adjustment Range 6.5 dB BRIG Brightness Range RelativetoB/W amplitudeon
R,G,B outputsat Contrast Max. 40 50 %
ΔVCTR Variationof Black Levelwith Contrast 100 mV
ΔVSAT Variationof Black Levelwith Saturation 50 mV
ΔVREL Relative Variationin Black Level
betweenthe three Channels during Variationof Contrast(20dB) during Variationof Brightness
(totalrange) during VariationofVcc (+/-10%)
Drive Max.
TBD
TBD
ΔVTemp Black Level ThermalDrift 1 mV/oC
2118B-04.TBL
STV2118B11/25
ELECTRICAL CHARACTERISTICS (VCC =9V, Tamb =25oC, unless otherwisespecified) (continued)
Symbol Parameter Test Conditions Min. Typ. Max. UnitRGB OUTPUTS (Pins 27-28-29) (continued)
Track Tracking between Luminanceand
Chrominance Signals
From Max. contrast (0dB) -10dB contrast
2dB
Bwidth Bandwithof Output Signalsat -3dB CVBS Input(no SVHS) PAL/NTSC CVBS Input(no SVHS) PAL/NTSC CVBS Input(no SVHS) SECAMY Input SVHS Mode RGB Inputs
fOSC= 3.58MHz, Sharp Typ.
fOSC= 4.43MHz, Sharp Typ.
fOSC= 4.43MHz,no sharptrap Filter, Sharp Typ.
MHz
MHz
MHz
MHz
MHz
S/N Signalto Noise Ratioof Output (VPP/VRMS)
4.43MHz PAL/NTSC Signal Y/CVBS Input signalon R-Y,B-Y inputs
Contrast Max., Drive Max.,
Saturation Typ., Sharp Typ.,
Bandwidth 5MHz dB
Res Residual FrequencyatfOSC2fOSCand Higher Harmonics
PAL/SECAM
PAL/SECAM
mVPP
mVPP
FILTERS
VTUN1 Tuning Voltage Range (Pin8) 3.2to4.8 V
VTUN2 Cloche Tuning Voltage Range(Pin9) 2.5to6.5 V DELAY LINE
td1p Delay TimePAL 4.43MHz SVHS mode 330 370 400 ns
td1n Delay Time NTSC 3.58MHz SVHS mode 380 410 460 ns
td2 Delay Time SECAM SVHS mode 500 540 580 ns
td3p Delay TimePAL 4.43MHz CVBS mode 390 425 460 ns
td3 Delay Time NTSC 3.58MHz CVBS mode 440 485 530 ns
td4 Delay Time SECAM CVBS mode 550 590 630 ns
SHARPNESS CIRCUIT (PAL/NTSC only)
fSharp Center Frequency SVHS mode 2.5 MHz
GSharp Gain Variation from Min.to Max. Sharp at fSharp 6dB
Overshoot Amplitude Variation comparedto B/W 2T pulse, Sharp Max. 150 %
Pre-shoot Amplitude Variation comparedto B/W 2T pulse, Sharp Max. -15 %
After-shoot Amplitude Variation comparedto B/W 2T pulse, Sharp Max. -40 %
Coring Coring Range comparedto B/W 10 % TRAP FILTER
fTrap Trap Frequency PAL/NTSC -0.2 fOSC +0.2 MHz
Trap Frequency SECAM -0.2 4.25 +0.2 MHz
QTrap Trap Quality Factor
(Q=1/(fo/f-3dB- f-3dB/fo))
SharpnessMin.
Sharpness Max.
CRejPN Color Subcarrier Rejection PAL mode, SharpnessMin.
NTSC mode, Sharpness Min.
CrejS Color Rejection SECAM Mode at 4.1MHz 4.4MHz
CHROMINANCE BANDPASS Center Frequency -0.25 fosc +0.25 MHz
QBP Bandpass Quality Factor 2.8 3.5 4.2 -
CLOCHE FILTER
fCloche Resonant Frequency 4.286 MHz
QCloche Cloche Quality factor 14 16 18 -
ACC CAPACITOR(Pin5)
IC5 Charging Current During burst gate window 250 μA
IL5 Leakage Current 0.2 1 μA
2118B-05.TBL
STV2118B12/25
ELECTRICAL CHARACTERISTICS (VCC =9V, Tamb =25oC, unless otherwise specified) (continued)
Symbol Parameter Test Conditions Min. Typ. Max. UnitCHROMAPLL (Pins2-3)
CR2-3 Catching Range Q= 4.43MHz(Pin3)= 3.58MHz(Pin2)
±600
±500
PLL LOOP FILTER(Pin4)
IC4 Control Current During burst gate window 400 μA
IL4 Leakage Current 5 μA
HUE CONTROL(in NTSC mode only)
CRHUE HUE Control Range ±25 ±45 Deg
COLOR DIFFERENCE OUTPUT SIGNALS (Pins40-41)
PAL /NTSC DEMODULATORS
VP40 R-Y Output signal Amplitude(Pin40) |RED-BLUE| axes=90o
100/75 colourbar
0.40 0.52 0.60 VPP
VP41 B-Y OutputSignal Amplitude(Pin41) |RED-BLUE| axes=90o
100/75 colourbar
0.50 0.66 0.80 VPP
GPAL Gain Ratioof both Demodulators (B-Y)/(R-Y) |RED-BLUE| axes=90o
100/75 colourbar
1.15 1.27 1.45 -
GNTSC Gain Ratioof both Demodulators (B-Y)/(R-Y) |RED-BLUE| axes=104o
100/75 colourbar
1.0 1.23 1.45 -
VPNDC Output Voltagewhen colour killed 5.6 5.8 6.0 V
SECAM DEMODULATORS
VS40 R-Y Output SignalAmplitude(Pin40) 100/75 ColourBar 0.8 1.05 1.20 VPP
VS41 B-Y OutputSignal Amplitude(Pin41) 100/75 ColourBar 1.00 1.33 1.40 VPP
GSECAM Gain Ratioof both Demodulators (B-Y)/(R-Y) 1.00 1.27 1.35 -
VSDC Output Voltagewhen colour killed 5.4 5.6 5.8 V
PAL /SECAM /NTSC(90o) MATRIX
G/R (G-Y)/(R-Y) -0.6 -0.51 -0.4 -
G/B (G-Y)/(B-Y) -0.28 -0.19 -0.15 -
NTSC (104o) MATRIX
NG/R (G-Y)/(R-Y) -0.29 -
NG/B (G-Y)/(B-Y) -0.22 -
SATURATION CONTROL
SATMax. Maximum Saturation Control(3F) 1VPP CVBSonPin20 5 +6.5 8 dB
SATNom. Nominal Saturation Control(20) 1VPPCVBS onPin20 0 dB
SATMin. Minimum SaturationControl(00) 1VPP CVBSonPin20 -44 dB
COLOUR DIFFERENCE INPUT SIGNALS (Pins 38-39)
DCRYI DC VoltagePin39 No colour 2.6 2.8 3.0 V
DCBYI DC VoltagePin38 No colour 2.6 2.8 3.0 V
VRYI Input Signal AmplitudePin39 100/75 colorbar 1.05 VPP
VBYI Input Signal AmplitudePin38 100/75 colorbar 1.33 VPP
ICL38-39 Clamping Current During burstkey 150 μA
SYNC. SEPARATOR
VSync Sync. Pulse Amplitude OnPin20 50 300 mV
HORIZONTAL OSCILLATOR
fH50 Frequency after Divider 50Hz input signal 15625 Hz
fH60 Frequency after Divider 60Hz input signal 15750 Hz
fRang Frequency Control Range Low Frequency
High Frequency
ffree Free Running Frequency when PLL1 open Value 03hex register 0Ehex
15000 15800 Hz
2118B-06.TBL
STV2118B13/25
