STV6888 STMicroelectronics, STV6888 Datasheet
STV6888
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STV6888 Summary of contents
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... Bus-controlled output voltage Synchronization on hor. frequency with phase selection Selectable polarity of drive signal DESCRIPTION The STV6888 is a monolithic integrated circuit as- sembled in a 32-pin shrink dual-in-line plastic package. This IC controls all the functions related to horizontal and vertical deflection in multimode or multi-frequency computer display monitors. ...
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GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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... STV6888 1 - GLOSSARY AC Alternate Current ACK ACKnowledge bit of I AGC Automatic Gain Control COMP COMParator CRT Cathode Ray Tube DC Direct Current EHT Extra High Voltage EW East-West H/W HardWare HOT Horizontal Output Transistor Inter-Integrated Circuit IIC Inter-Integrated Circuit MCU Micro-Controller Unit NAND Negated AND (logic operation) ...
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... VSyn 2 31 SDA HLckVBk 3 30 SCL HOscF 4 29 Vcc HPLL2C 5 28 BOut GND HGND 7 26 HOut XRay HPLL1F 24 EWOut 9 HPosF 10 23 VOut HMoiré VCap HFly 12 21 VGND RefOut 13 20 VAGCCap BComp 14 19 VOscF BRegIn 18 VEHTIn 15 BISense 16 17 HEHTIn STV6888 5/47 ...
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... Vertical position S-correction Vertical moiré C-correction VDyCor VOut VEHTIn VCap HPLL2C 5 H-drive HOut 26 buffer Safety XRay 25 processor 28 BOut B+ PLL2 BISense 16 DC/DC converter BRegIn 15 controller B+ ref. BComp 14 HMoiré generator H size Pin cushion EWOut 24 Keystone Top corners Bottom corners STV6888 17 HEHTIn ...
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... XRay X-Ray protection input 26 HOut Horizontal drive Output 27 GND Main GrouND 28 BOut B+ DC/DC converter controller Output 29 Vcc Supply voltage 2 30 SCL I C bus Serial CLock Input 2 31 SDA I C bus Serial DAta input/output 32 VDyCor Vertical Dynamic Correction output Function STV6888 7/47 ...
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... STV6888 5 - QUICK REFERENCE DATA General Package Supply voltage Supply current Application category Means of control/Maximum clock frequency EW drive DC/DC converter controller Adjustable DC level output Horizontal section Frequency range Autosync frequency ratio (can be enlarged in application) Positive/Negative polarity of horizontal sync signal/Automatic adaptation Duty cycle range of the drive signal ...
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... PinsHLckVBk, CO, RO, HPLL1F, HPosF, HMoiré, BRegIn, BI- V (pin) Sense, VAGCCap, VCap, VDyCor, HOscF, VOscF Pin HPLL2C Pin HFly ESD susceptibility V ESD (human body model: discharge of 100pF through 1. Storage temperature stg T Junction temperature j Parameter STV6888 Value Unit Min Max -0.4 13 -0.4 5.5 V -0.4 V ...
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... STV6888 7 - ELECTRICAL PARAMETERS AND OPERATING CONDITIONS The medium (middle) value adjustment register composed of bits D0, D1,...,Dn is the one having Dn at "1" and all other bits at "0". The minimum value is the one with all bits at 0, maximum value is the one with all at "1". ...
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... At top of H flyback pulse No PLL2 phase modula- (6) tion (5) (5) Null asym. correction Null asym. correction Output driven LOW HDUTY (Sad00): x1111111b x0000000b Soft-start/Soft-stop value HPOS (Sad01): 1111111xb 0000000xb STV6888 Value Units Min. Typ. Max. 1.5 mA 390 pF 100 kHz 27 28.5 29.9 kHz 29 122 ...
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... STV6888 Symbol Parameter Contribution of pin cushion asymmetry t /T correction to phase of H-drive vs. static PCAC H phase (via PLL2), measured in corners Contribution of parallelogram correction phase of H-drive vs. static phase (via ParalC H PLL2), measured in corners Note 1: Frequency at no sync signal condition. For correct operation, the frequency of the sync signal applied must always be higher than the free-running frequency ...
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... VO VOCapt = 8V RefO VPOS (Sad08): x0000000b x1000000b x1111111b VSIZE (Sad07): x0000000b x1000000b x1111111b 2 VOutEn Cbit at 0 VEHT VRefO (min) VEHT VEHT VRefO SCOR (Sad09 at x0000000b) and null CCOR (Sad0A at x1000000b). STV6888 Value Units Min. Typ. Max 100 Hz 50 185 Hz 0 ppm/ 200 Hz 3 ...
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... STV6888 7 DRIVE SECTION V = 12V 25°C CC amb Symbol Parameter V Output voltage on EWOut pin EW Current sourced by EWOut out- I EWOut put Control voltage range on HEH- V HEHT TIn pin DC component of the EW-drive V EW-DC signal on EWOut pin V Breathing compensation – ---------------------------- - V V EW-DC HEHT Temperature drift of DC compo- ...
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... V EW Test Conditions R =10k L(VDyCor) (23) at medium VSIZE VDC-AMP (Sad15h): x0000000b x1000000b x1111111b VDC-AMP at maximum VSIZE (Sad07): x0000000b x1111111b VDC-AMP at maximum VPOS (Sad08): (33) x0000000b x1111111b STV6888 Value Units Min. Typ. Max. 0 %/V 20 %/V 0 %/V 1.75 %/ > HOThrfr Value Units Min ...
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... STV6888 Note 33: Ratio "A/B"of vertical parabola component voltage Note 34: Unsigned value. Polarity selection by 7.8 - DC/DC CONTROLLER SECTION V = 12V 25°C CC amb Symbol Parameter Ext. resistance applied between R B+FB output and BComp Open loop gain of error amplifier A OLG on input BRegIn Unity gain bandwidth of error am- ...
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... Rext=10k HMOIRE (Sad02): x0000000b x1111111b VMOIRE (Sad0Bh): x0000000b x1111111b XRay (40) input CC CC (18)(42) Normal operation HPOS (Sad01) 0000000xb 1111111xb . RefO 2 C Bus does not accept any data and the STV6888 Value Units Min. Typ. Max. 100 H.lock V 0.1 Yes Yes 1 0. ...
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... STV6888 8 - TYPICAL OUTPUT WAVEFORMS 43 Note ( ) Function Sad Pin Vertical Size 07 VOut Vertical Position 08 VOut S-correction 09 VOut C-correction 0A VOut 18/47 Byte Waveform V x0000000 amp(min) V mid(VOut) V x1111111 amp(max) V mid(VOut) x0000000 V mid(VOut) x1000000 V mid(VOut) V mid(VOut) x1111111 x0000000: V VOamp Null V VOS-cor V x1111111: VOamp Max. 0 ¼T ¾ ...
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... V-moiré V x1111111: amp Max. (n-1)T nT (n+1 0000000x EW-DC(min) 0 ½ 1111111x EW-DC(max) 0 ½ x0000000 EW-DC EW-key V x1111111 EW-key V EW-DC V EW-PCC(min) x0000000 0 ½ EW-PCC(max) x1111111 0 ½ EW-TCor(max) x1111111 0 ½ EW-TCor(min) x0000000 0 ½ EW-TBot(max) x1111111 0 ½ EW-TBot(min) x0000000 0 ½T VR STV6888 Effect on Screen 19/47 ...
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... STV6888 Function Sad Pin Parallelogram 12h correction Pin cushion asymmetry 11h correction Vertical dynamic 15h VDyCor correction amplitude Note 43: For any H and V correction component of the waveforms onEWOut and VOut pins and for internal waveform for corrections of H asymmetry, displayed in the table, weight of the other relevant components is nullified (minimum for parabola, S-correction, medium for keystone, all corner corrections, C-correction, parallelogram, parabola asymmetry correction, written in corresponding registers) ...
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... VPOS (Vertical position SCOR (S-correction CCOR (C-correction VMOIRE (Vertical moiré amplitude PCC (Pin cushion correction KEYST (Keystone correction TCC (Top corner correction BCC (Bottom corner correction HSIZE (Horizontal size PCAC (Pin cushion asymmetry correction STV6888 Reserved Reserved 21/47 ...
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... STV6888 Sad Reserved VDyCorPol 15 0: ” " 1 XRayReset VSyncAuto effect Reset (46) (46) 0: Off 0: Off READ MODE (SLAVE ADDRESS = 8D) XX HLock VLock 0: Locked 0: Locked (45) 1: Not locked 1: Not lock. Note 44: With exception of HDUTY and HDutySyncV B+SyncV and Note 45: In Read Mode, the device always outputs data of the status register, regardless of sub address previously selected ...
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... B+ DC/DC convertor if this is in ex- ternal sawtooth configuration. Sad17/D3 - Selection of Edge of Horizontal drive signal to phase B+ drive Output signal on BOut pin. Only applies if the bit BOHEdge 0: Falling edge 1: Rising edge STV6888 VSyncSel has no effect XRayReset 2 C Bus data transfer into reg- XRayReset bit. Also see de- BlankMode VOutEn on VOut pin (see 7 ...
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... STV6888 Sad17/D4,D5,D6,D7 - THM, TVM, TH, Test bits. They must be kept at 0 level by appli- cation S/W. Read-out flags (47) SadXX/D0 - VDet Flag indicating Detection of V synchronization pulses on VSyn pin. 0: Not detected 1: Detected (47) SadXX/D1 - HVDet Flag indicating Detection synchroni- zation pulses applied on H/HVSyn sync pulses are detected, the flag is set and latched ...
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... The information from all detectors is provided in the I VDet, HVDet, VExtrDet, VPol, HVPol). The device is equipped with an automatic mode (switched on or off by VSyncAuto I detection information. STV6888 . The filtering is RefO 2 C bus 2 C bus slave, compatible with ...
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... STV6888 Figure 2. Horizontal sync signal Positive T H Negative 10.2.2 - Sync. presence detection flags The sync. signal presence detection flags in the status register (VDet, HVDet, VExtrDet) do not show in real time the presence or absence of the corresponding sync. signal. They are latched soon as a single sync. pulse is detected. In or- Figure 3 ...
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... VCO ramp signal in relation to input sync. pulse for three different positions of adjustment of horizontal position control PLL1InhEn Lock Status 2 (pin & LOCK DETECTOR High CHARGE COMP PUMP Low PLL1Pump STV6888 Figure 4 on HPLL1F can be disabled through 2 C bus bit. HPOS . 2 V-sync (extracted) ...
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... STV6888 Figure 6. Horizontal oscillator (VCO) schematic diagram (PLL1 filter HPLL1F + from charge pump 10.3.3 - Voltage controlled oscillator The VCO makes part of both PLL1 and PLL2 loops, being an “output” to PLL1 and “input” to PLL2. It delivers a linear sawtooth. Figure 6 ex- plains its principle of operation. The linears are ob- ...
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... Their amplitude is adjustable 2 C bus through HMOIRE Only one H-moiré, internal or external, is generat time. STV6888 HDUTY . This is overruled dur- 26 HOut ext. int bus bit or after re- 2 ...
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... STV6888 The behaviour of horizontal moiré opti- mised for different deflection design configurations 2 using HMoiré bus bit. This bit kept at 0 Figure 10. Control of HOut and BOut at start/stop at nominal V V (HPosF HBNorm V BOn V Soft start HOn Start Start HOut BOut HOut ...
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... VMOIRE Charge current OSC VCap Cap. 22 Sampling Discharge Controller Q1 sawtooth discharge V VOB VSIZE ( VMOIRE (I C) VOscF 2 VPOS (I C) STV6888 RefO value (and so RefO bus control,. Transconductance amplifier REF 20 VAGCCap Sampling Capacitance S-correction 2 SCOR ( CCOR CCOR (I C) C-correction 18 VEHTIn VOut ...
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... STV6888 10 DRIVE SECTION The goal of the EW drive section is to provide, on pin EWOut, a waveform which, used by an exter- nal DC-coupled power stage, serves to compen- sate for those geometry errors of the picture that are symmetric versus vertical axis across the mid- dle of the picture. ...
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... VOut 23 Top parabola generator Vertical ramp 2 2 Bottom parabola generator 2 VDC-AMP (I C) VDyCorPol ( PCC (I C) TCC (I C) Tracking HEHTIn/HSize 2 BCC ( Tracking KEYST (I C) with Hor Frequency 2 PCAC ( horizontal dyn. phase control 2 PARAL (I C) STV6888 2 C) VDyCor 32 HSize 17 HEHTIn 24 EWOut 33/47 ...
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... STV6888 Figure 13. EWOut output waveforms V (EWOut) V EW-Key Keystone alone V V (VCap) (VCap 10.6 - DYNAMIC CORRECTION OUTPUT SECTION 10.6.1 - Vertical dynamic correction output VDyCor A parabola at vertical deflection frequency is avail- able on pin VDyCor. Its amplitude is adjustable via 2 VDC-AMP I C bus control and polarity controlled ...
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... BOutPh BOHEdge (Sad07/ (Sad17/ D7) 0 don’t care Middle of H-flyback plus which C1 Monostable ~500ns HBOutEn XRayAlarm STV6888 2 C bus adjustable by means of Timing of Off-to-On transition on BOut output D3) BTrigDel 0 Falling edge of H-drive signal 1 Rising edge of H-drive signal type BOut I3 P type BOutPol 35/47 ...
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... STV6888 10.8 - MISCELLANEOUS 10.8.1 - Safety functions The safety functions comprise supply voltage monitoring with appropriate actions, soft start and soft stop features on H-drive and B-drive signals on HOut and BOut outputs and X-ray protection. For supply voltage supervision, refer to paragraph Power supply and voltage references on page 25 and Figure 1 ...
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... I C HlockEn H-lock detector R Q V-sawtooth discharge S V-sync Out L1=No blank/blank level L2=H-lock/unlock level bit/flag STV6888 HPosF 10 (timing) SOFT START & STOP XRayAlarm B-drive inhibit H-drive inhibit H-drive inhibition (overrule) V-drive inhibition B-drive inhibition HLckVbk 3 L3=L1+L2 HLock Int. signal 3 Pin 37/47 ...
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... STV6888 10.8.4 - Composite output HLckVBk The composite output HLckVBk provides, at the same time, information about lock state of PLL1 and early vertical blanking pulse. As both signals have two logical levels, a four level signal is used to define the combination of the two. Schematic di- agram putting together all safety functions and ...
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... Figure 17. Ground layout recommendations STV6888 STV6888 General Ground 39/47 ...
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... INTERNAL SCHEMATICS Figure 18. 5V Pins 1-2 200 H/HVSyn VSyn Figure 19. 12V 13 RefOut HLckVBk l 3 Figure 20. 12V Pin 13 HOSCF Pin 4 Figure 21. RefOut 12V 5 HPLL2C Figure 22. 12V RefOut Figure 23. 12V RefOut STV6888 13 41/47 ...
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... STV6888 Figure 24. HPLL1F 9 Figure 25. RefOut 12V HPosF 10 Figure 26. 12V 5V HMoiré 11 42/47 Figure 27. HFly 12 Figure 28. BComp 14 Figure 29. 5V BRegIn 12V 12V 15 ...
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... Figure 30. 12V BISense 16 Figure 31. 12V 18 VEHTIn 17 HEHTIn Figure 32. 12V Pin 13 VOSCF 19 Figure 33. 12V VAGCCap 20 Figure 34. 12V 22 VCap Figure 35. 12V VOut 23 STV6888 43/47 ...
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... STV6888 Figure 36. 12V 24 EWOut 32 VDyCor Figure 37. 12V XRay 25 Figure 38. 12V 26 HOut 28 BOut 44/47 Figure 39. 30 SCL 31SDA ...
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... STV6888 Inches Min. Typ. Max. 0.148 0.200 0.140 0.180 0.018 0.023 0.040 0.055 0.010 0.014 1.100 1.120 0.410 0.435 ...
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... STV6888 DATASHEET December 2001 version 4.0 Document created from last version 4.0 of TDA9116 February 2002 Created new version from existing version 4.0 of TDA9116 as the previous was not compliant with the customer’s request. The vertical frequency is kept the same as for the TDA9116 The satus registers are kept as for TDA9116 correction in Block diagram: double arrow between I² ...
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... Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. by Philips. STMicroelectronics Group of Companies http://www.st.com STV6888 2 C Patent. Rights to use these 2 C Standard Specification as defined 47/47 ...