STV6889 STMicroelectronics, STV6889 Datasheet
STV6889
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STV6889 Summary of contents
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... Synchronized on hor. frequency with phase selection • Selectable polarity of drive signal • Protection at H unlock condition DESCRIPTION The STV6889 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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PIN CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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... Dynamic correction outputs section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 9.6.1 Vertical dynamic correction output 9.7 DC/DC controller section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 9.7.1 Synchronization of DC/DC controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 9.7.2 Soft-start and soft-stop on B-drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 9.8 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 9.8.1 Safety functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 9.8.2 Composite output 10 INTERNAL SCHEMATICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 11 PACKAGE MECHANICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 12 GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 VDyCor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 HLckVBk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 STV6889 3/56 1 ...
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... STV6889 1 PIN CONFIGURATION 4/56 2 H/HVSyn 32 VDyCor 1 VSyn 2 31 SDA HLckVBk 3 30 SCL HOscF 4 29 Vcc HPLL2C BOut GND 6 HGND 7 26 HOut XRay HPLL1F EWOut 9 24 HPosF 23 VOut VCap 21 HFly 12 VGND RefOut VAGCCap 13 20 BComp 19 VOscF 14 BRegIn 18 VEHTIn 15 BISense 16 17 HEHTIn ...
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... BLOCK DIAGRAM STV6889 5/56 ...
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... STV6889 3 PIN FUNCTION REFERENCE Pin Name 1 H/HVSyn TTL compatible Horizontal / Horizontal and Vertical Sync. input 2 VSyn TTL compatible Vertical Sync. input 3 HLckVBk Horizontal PLL1 Lock detection and Vertical early Blanking composite output 4 HOscF High Horizontal Oscillator sawtooth threshold level Filter input ...
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... Internal • External sawtooth configuration Bus-controlled output voltage • Inhibition at H unlock Mute • Soft start • Soft stop feature Positive (N-MOS) • Negative(P-MOS) polarity of BOut signal Phase selection • Max current selection • Frequency selection Characteristic STV6889 Value Unit SDIP ...
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... STV6889 5 ABSOLUTE MAXIMUM RATINGS All voltages are given with respect to ground. Currents flowing from the device (sourced) are signed negative. Currents flowing to the device are signed positive. Symbol V Supply voltage (pin Vcc) CC Pins HEHTIn, VEHTIn, XRay, HOut, Pins H/HVSyn, VSyn, SCL, ...
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... I CC RefO RefOut output Test Conditions H/HVSyn H/HVSyn VSyn VSyn VSyn H/HVSyn pin Pin H/HVSyn Pins H/HVSyn, Pins H/HVSyn, Pin H/HVSyn, cap. on pin CO Pin H/HVSyn STV6889 Value Min. Typ. Max °C/W Value Min. Typ. Max. 10 -2mA 7.65 7.9 8.2 -5 ...
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... STV6889 6.4 Horizontal section Table 1. Horizontal section Symbol Parameter PLL1 I Current load Capacitance Frequency of hor. oscillator HO f Free-running frequency of hor. oscill. HO(0) f Hor. PLL1 capture frequency HOCapt ------------------------- - Temperature drift of free-running freq. × /DV Average horizontal oscillator sensitivity oscill. control voltage on pin HO Threshold on H. oscill. control voltage on ...
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... VSIZE at maximum BCAC (Sad14h) full span (9) VPOS at medium VSIZE at minimum VSIZE at medium VSIZE at maximum and C positions always meet this condition. The formula to calculate CO f =0.122/( HO( Note 5 STV6889 = 25°C) amb Value Units Min. Typ. Max. + -11 % ±0.9 % ±1.6 % ±2.6 % ±1.4 % ±1.9 % ±2.4 % ± ...
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... STV6889 Notes about horizontal section (continued) Note 8: The t (max) parameter is fixed by the application. For correct operation of asymmetry corrections through ph dynamic phase modulation, this maximum must be reduced by maximum of the total dynamic phase required in the direction leading to bending of corners to the right. Marginal situation is indicated by reach of low clamping level by waveform on pin HPLL2C ...
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... V V RefO VEHT £ VEHT VEHT (min) HT (max): VEHTG (Sad1Ch): x0000000b x1000000b x1111111b VOscF . at x1111111b), null C-correction Figure 17 respectively, the influence of HEHTnull STV6889 Value Min. Typ. Max. -5 0.25 -4.5 +4.5 -2 £ pin. Any DC current on this pin will (SCOR ...
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... STV6889 6.6 EW drive section Table 3. EW drive section (V Symbol Parameter V Output voltage on EW Current delivered by I EWOut put Control voltage range on V HEHT TIn pin Neutral point on breathing char- V HEHTnull acteristics. See DC component of the EW-drive V EW-DC signal on EWOut DC reference for the EW-drive ...
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... HOThrfr £V V (min)£ HOThrfr I²C bit EWTrHSize=1 HSIZE (Sad10h): 00000000b 10000000b 11111111b < < RefO HEHT £ (min)£ HEHT HEHT HE- (max): HT HEHTG (Sad1Bh): 0000000b 1000000b 1111111b STV6889 Value Units Typ. Max. -1 +1 +1 0 %/V 20 %/V 0 %/V 20 ...
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... STV6889 Notes about EW drive section Note 24: KEYST at medium (neutral) value. Note 25: TCC at medium (neutral) value. Note 26: BCC at medium (neutral) value. Note 27: PCC at minimum value. Note 28: VPOS at medium (neutral) value. Note 29: HSIZE I²C field at maximum value. Note 30 defined as voltage at t EW-DC Note 31: Defined as difference of (voltage at t ...
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... VDC-AMP (Sad15h): x0000000b VDyCor x1000000b x1111111b VDC-AMP at maximum VSIZE (Sad07h): x0000000b x1111111b VDC-AMP at maximum VDyCor VPOS (Sad08h): (45) x0000000b x1111111b =0 versus vertical parabola component voltage at VR STV6889 = 12V 25°C) CC amb Value Min. Typ. Max. -1.5 0 0.5 1 0.6 1.6 0.5 2.0 Units ...
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... STV6889 6.8 DC/DC controller section Table 5. DC/DC controller section Symbol Parameter Ext. resistance applied between R B+FB BComp output and Open loop gain of error amplifier on A OLG BRegIn input Unity gain bandwidth of error amplifier f UGBW on BRegIn input I Bias current delivered by RI Output current capability of ...
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... HMOIRE (Sad02h): x0000000b x1111111b by H. moiré function HMoiréMode HMOIRE (Sad02h): x0000000b x1111111b VMOIRE (Sad0Bh): x0000000b x1111111b (50) XRay input (53 for Soft start/stop operation CC V thresh- HOn STV6889 = 25°C) amb Value Min. Typ. Max. 100 H. lock Yes 0.1 Yes RefO ...
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... STV6889 Notes about Miscellaneous section Note 49: Current sunk by the pin if the external voltage is higher than one the circuit tries to force. Note 50: See V in Section 6.2. RefO Note 51: In the regions of V where the device's operation is disabled, the H-drive, V-drive and B+-drive signals on ...
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... V mid(VOut) V x0000000 amp V mid(VOut) V x1111111 amp V mid(VOut) x0000000 V mid(VOut) x1000000 V mid(VOut) V mid(VOut) x1111111 x0000000 V mid(VOut) x1000000 V mid(VOut) V mid(VOut) x1111111 V amp x0000000: Null 0 ½ SCor V x1111111: amp Max. 0 ¼T ¾ STV6889 Note 55 Effect on Screen V midref V midref V midref V midref V midref V midref 21/56 ...
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... STV6889 Table 7. Typical output waveforms - Function Sad Pin VOut C-correction 0A (23) Vertical moiré VOut 0B amplitude (23) EWOut Horizontal size 10h (24) Keystone EWOut 0D correction (24) Pin cushion EWOut 0C correction (24) 22/56 Byte Waveform V amp V x0000000 CCor 0 ½ amp x1000000 : Null 0 ½ amp V x1111111 CCor 0 ½ ...
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... VR V EW-BCor x0000000 0 ½ EW-S x1111111 0 ½ EW-S x0000000 ½ EW-W x1111111 0 ½ EW-W x0000000 ½ static H-phase ParalC x0000000 ½ ParalC static H-phase x1111111 ½ PCAC x0000000 ½ PCAC x1111111 ½ STV6889 Note 55 Effect on Screen static H-phase static H-phase 23/56 ...
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... STV6889 Table 7. Typical output waveforms - Function Sad Pin Top corner asymmetry 13h correction Bottom corner asymmetry 14h correction Vertical dynamic VDyCor 15h correction (32) amplitude Note 55: For any H and V correction component of the waveforms on corrections of H asymmetry, displayed in the table, the weight of the other relevant components is nullified (minimum for parabola, S-correction, medium for keystone, all corner corrections, C-correction, S- and W-pin cushion corrections, parallelogram, pin cushion asymmetry correction, written in corresponding registers) ...
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... BREF B+reference Reserved Reserved Reserved VSIZE Vertical size 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 STV6889 25/56 ...
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... STV6889 Sad Reserved 1 12 Reserved 1 13 Reserved 1 14 Reserved 1 VDyCorPol 15 0: ”È" 1 XRayReset VSyncAuto effect Reset (58) (58) 0: Off 0: Off 18 Reserved Reserved Reserved Reserved Reserved Reserved BMute ThrBlsense 1F 0: High 0: Off READ MODE (SLAVE ADDRESS = 8D) HLock VLock Locked 0: Locked ) 1: Not locked 1: Not lock ...
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... If enabled, the device automatically selects between the vertical sync extracted from composite HV signal on pin on pin VSyn both are present, the one coming first is kept. 0: Disabled, selection done according to bit VSyncSel 1: Enabled, the bit STV6889 HLockEn HLckVBk PLL1InhEn PLL1Pump D2 Time Constant 0 Slowest PLL1, lowest current ...
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... STV6889 Sad16h/D7 - XRayReset Reset XRay flag of status register effect- ed with ACK bit of I²C-bus data transfer into reg- ister containing the XRayReset scription of the flag effect 1: Reset with automatic return of the bit to 0 Sad17h/D0 - BlankMode Blanking operation Mode. 0: Blanking pulse starting with detection of ...
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... Lock status of Horizontal PLL1. 0: Locked 1: Not locked See also bit I²C-bus bit). This taken into account by application S way that SDetReset bit and validation of information provided in the flag after read-out STV6889 pin with respect H/HVSyn pin. Can only be reset XRay XRayReset or by power- ...
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... STV6889 9 OPERATING DESCRIPTION 9.1 Supply and control 9.1.1 Power supply and voltage references The device is designed for a typical value of power supply voltage order to avoid erratic operation of the circuit at power supply ramp-up or ramp-down, the value of is monitored. See and electrical spec- V Figure 1 CC ifications. At switch-on, the device enters a “ ...
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... If both extracted and pure vertical sync. signals are present, the one already selected is maintained. No intervention of the MCU is necessary. . STV6889 I²C-bus bit, the reset action taking SDetReset bit. The detection is set this mode, the 31/56 ...
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... STV6889 9.3 Horizontal section 9.3.1 General The horizontal section consists of two PLLs with various adjustments and corrections, working on horizontal deflection frequency, then phase shift- ing and output driving circuitry providing H-drive signal on pin. Input signal to the horizontal HOut section is output of the polarity inverter on input ...
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... This range can easily be in- creased in the application. The PLL1 can only lock to input frequencies falling inside these two limits. and V V HOThrLo HO- pin. STV6889 V-sync (extracted) (I²C) HPLL1F RO CO HOscF PLL INHIBITION VCO HPosF ...
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... STV6889 9.3.4 PLL2 The goal of the PLL2 is, by means of phasing the signal driving the power deflection transistor, to lock the middle of the horizontal flyback to a cer- tain threshold of the VCO sawtooth. This internal threshold is affected by geometry phase correc- tions, like e.g., parallelogram. The PLL2 is fast ...
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... I²C-bus control is optimized according to selec- tion by HMoiréMode and EHT are each regulated separately, smaller HOut when B+ and EHT are common regulation. for soft t Hoff . In case HPosF HOut . STV6889 HMOIRE I²C-bus I²C-bus bit. This bit HMOI- I²C-bus bit: larger when B+ 35/56 ...
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... STV6889 Figure 10. Control of and HOut V (HPosF) V HBNorm V BOn Soft start V HOn Start Start H-drv B-drv HOut H-duty cycle BOut (positive) B-duty cycle Figure 11. Events triggering Soft start and Soft stop V[HPosF] Soft start Soft stop event event V (HPosF HOut duty cycle ...
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... Vertical after-gain and offset control Another gain control is applied via register. Then an offset is added, its amount corre- sponding to two controls result in size and position changes with no effect on shape of output vertical sawtooth . It can be rough- or any geometry correction signal. STV6889 150nF . 100Hz C (VCap) level, which, under V VOB VPOS I² ...
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... STV6889 9.4.5 Vertical moiré To blur potential moiré patterns due to interaction of deflection lines with CRT mask grid, the picture position slightly alternated at frame fre- quency. For this purpose, a square waveform at half-frame frequency is superimposed on the out- put waveform. Its amplitude is adjustable through VMOIRE I² ...
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... HEHTG The EW waveform signal is buffered by an NPN emitter follower, the emitter of which is directly VSIZE and routed to EWOut electrical specifications for current value). STV6889 (VSAG and can be switched off by HPLL1F EWTrHFr I²C- . The upper part gives the influ- input and whole range of adjust- register ...
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... STV6889 Figure 13. Tracking of EWOut HSIZE=max breathing breathing HSIZE=min V EW-base min EWTrHFr=0 min V HO HSIZE=min breathing HSIZE=max breathing EWTrHSize=1 EWTrHFr=0 0 min V HO 40/56 signal with frequency V EW-base min V max HOThrfr 0 V max HOThrfr breathing breathing HSIZE=min EWTrHFr=1 V min max HOThrfr V HO breathing ...
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... VDC-AMP VDyCorPol HSIZE KEYST tracking PCC TCC BCC EWWC “W” EWSC “S” Tracking with hor. frequency PARAL PCAC To HPLL2 TCAC Internal dynamic phase waveform BCAC STV6889 V VD-DC VDyCor -1 32 H-size control DC Breathing 0...2.5V HEHTG V HEHTnull 17 HEHTIn V (max EWOut 24 0V ...
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... STV6889 Figure 15. output waveforms EWOut max V EW-Key V EW-PCC min Keystone PCC alone alone 42/56 Tracking with frequency off. V EW-TCor V EW-S V EW-BCor Top Bottom Corners S alone alone Vertical sawtooth (EWTrHFr = 0) HEHTG (I²C) 00h V EW-W max. 7Fh 00h mid. 7Fh 00h min. 7Fh ...
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... When BSafeEn signal on BOut zontal PLL1 indicates unlocked state, without the soft-stop. Resuming of locked state will initiate the soft-start mechanism of the DC/DC controller, timed by an internal timing circuit. STV6889 Vertical size after-gain nor with Vertical position . Another condition for reset Figure 10 ...
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... STV6889 Table 9. IDC/DC controller Off-to-On edge timing BOutPh BOHEdge (Sad07h/D7) (Sad17h/D3 Figure 16. DC/DC converter controller block diagram 0 H-drive edge 1 BOHEdge (I²C) H-fly-back (+delay) 0 VCO 1 ¸2 V BReg Feedback + BRegIn 14 BComp V ThrBIsCurr Safety block Soft start 10 HPosF BISense 44/56 Timing of Off-to-On transition on VCO ramp top at Horizontal frequency divided by two ...
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... X-ray condition de- tection at short parasitic spikes. The I²C-bus flag is set inform the MCU. This protection is latched; it may be reset either by drop or by I²C-bus bit V CC (see Chapter 8 - page 25 STV6889 , and depend on the V V HOn BOn HBNorm ’ in ...
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... STV6889 Figure 17. Safety functions - block diagram BSafeEn I²C H-lock detector HBOutEn I²C V supervision CCEn _ V CCDis XRayReset I²C XRay ThrXRay CCXRayEn HFly ThrHFly VOutEn I²C BlankMode I²C HLockEn I²C H-lock detector R V-sawtooth discharge S V-sync 46/56 BMute I² Off H-VCO discharge control ...
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... X-ray protection is ac- V CCDis tive or if the V-drive signal is disabled by I²C-bus bit. L1 +L2 (L) L1 +L2 (H) (L) (L) Yes No Yes No STV6889 BlankMode I²C-bus bit, when BlankMode I²C-bus bit, is also VOutEn blank/blank level L2 - H-lock/unlock level L1 +L2 (H) (H) (H) Yes No V CCEn 47/56 ...
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... STV6889 Figure 19. Ground layout recommendations 48/56 STV6889 General Ground ...
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... STV6889 49/56 ...
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... STV6889 10 INTERNAL SCHEMATICS Figure 20. 5V H/HVSyn 200W 1 Applies also for pin 2 (VSyn) Figure 21 RefO HLckVBk 3 Figure 22. 12V V RefO HOscF 4 50/56 3 Figure 23 HPLL2C Figure 24 RefO CO 6 Figure 25 RefO RefO ...
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... Figure 26. HPLL1F 9 Figure 27. V 12V RefO HPosF 10 Figure 28 HFly 12 Figure 29 BComp 14 Figure 30 BRegIn 15 Figure 31 BISense 16 STV6889 51/56 3 ...
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... STV6889 Figure 32 HEHTIn 17 Applies also for pin 18 (VEHTIn) Figure 33 RefO CC VOscF 19 Figure 34 VAGCCap 20 52/56 3 Figure 35 VCap Figure 36 VOut 23 Figure 37 EWOut 24 Applies also for pin 32 (VDyCor) ...
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... Figure 38 XRay 25 Figure 39 HOut 26 Applies also for pin 28 (BOut) Figure 40. SCL 30 Applies also for pin 31 (SDA STV6889 53/56 3 ...
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... STV6889 11 PACKAGE MECHANICAL DATA 32 PINS - PLASTIC SHRINK 32 1 Dimensions Min. A 3.556 A1 0.508 A2 3.048 B 0.356 B1 0.762 C .203 D 27.43 E 9.906 E1 7.620 2.540 54/56 4 Stand-off Millimeters Typ. Max. 3.759 5.080 3.556 4.572 0.457 0.584 1.016 1.397 0.254 0.356 27.94 28.45 10.41 11.05 8.890 9.398 1 ...
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... HOT Horizontal Output Transistor Inter-Integrated Circuit IIC Inter-Integrated Circuit MCU Micro-Controller Unit NAND Negated AND (logic operation) NPN Negative-Positive-Negative OSC OSCillator PLL Phase-Locked Loop PNP Positive-Negative-Positive REF REFerence RS, R-S Reset-Set S/W SoftWare TTL Transistor Transistor Logic VCO Voltage-Controlled Oscillator STV6889 55/56 5 ...
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... STV6889 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 license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics ...