TEA2017

TEA2017 STMICROELECTRONICS | Alldatasheet

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7 Tj SGS-THOMSON

HORIZONTAL AND VERTICAL DEFLECTION MONITOR = DIRECT FRAME YOKE DRIVE +1.5A DRIVING CURRENT = LINE DARLINGTON DRIVING CAPABILITY » BUILT-IN FRAME SEPARATOR WITHOUT EX- TERNAL COMPONENTS ; = MUTING OUTPUT Og = INTEGRATED FLYBACK GENERATOR (gee = FRAME OUTPUT PROTECTION AGAINST HPN SHORT CIRCUITS EAS » VERY FEW EXTERNAL COMPONENTS XX = HIGH DISSIPATION POWER PACKAGE DESCRIPTION rs. The TEA2017 is an horizontal and vertical deflec- (Plastic Package) tion circuit. It is particulary intended for black and white TV and display video units but it can also be used in low cost color TV applications. The TEA2017 provides a low cost deflection system. PIN CONNECTIONS

1 Line Output a) 9 Frame Oscillator

| 2 Muting Output —=—$—— 10 Power Amplifier Negative input

3 Line Flyback Input " — > Veer

4 Phase Detector : <=, 12 Flyback Generator Supply

5 Line Oscillator 7 _———> 13 Flyback Generator:

6 — Synchro Separator | ———_ 14 Frame Power Supply

7 Video Input + => 15 Frame Output

8 Ground —

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Ped tal [ve i ~~ ~ rT [ Flyback | frame | | Generat (] oscillator | Frame 15 4 | Power 7 _ ‘stage Synchro Muting 7| | separat. 10 ‘Video ] a f —— | Line ae Phase Line Line 1 | YT cetector | veo arver —Tf — Flyback input 3 I s ri 1 = SAWVeo1 Voc1 E8BTEA2017-01 ABSOLUTE MAXIMUM RATNGS [Symbol[ Parameter | Value nit Supply Voltage ee Flyback Generator Supply Voliage a ee Frame Power Supply Votage ee [cis | Frame Output Gurent——SSSSdA Line Output Vottage (external) po [Cpt [tine output Poak Curent Max Operating Junction Temperature THERMAL DATA [Rth (-¢)| Max Junction-case Thermal Resistance a oe | __ [th (ia) | Typical Junction-ambient Thermal Ress. a ee Max Recommended Junction Temperature | oe ane yy S6S:THOMSON __ SY/ mcromacraowics 974

ELECTRICAL CHARACTERISTICS

(Tamb = 25°C ; VCC1 = 10V) [Symbol[ Parameter | Min. | Typ. | Max. | Unit | [|__| Supply ca tcc1 | Supply Current mA vcc1 | Supply Voltage v [| Wieo imput in PT V7__ | Input Threshold Voltage (I7 = - 1A) Vv Video Input Signal Vpp (see figure application n°1) |__| Line Fiyback input pins | | TT v3 | Bias Voltage 27 Vv 23 _| Input Impedance 6 Ka | [Phase Comparator in | PT 14 | Output Current During Synchro Pulse © 600 WA 14R | Current Ratio (positive/negative) 1.0 Ww U4 | Leakage Current +1] pA Control Range Voltage 7 v Control Sensibility (see figure application n°1) 750 Hzhs Pull in Range (see figure application n°1) +800 Hz LTS Low Threshold Voltage 32 v HTS High Threshold Voltage 66 v BIS Bias Current 50 nA DRS | Discharge Impedance 800 a FLP1 | Free Running Line Period 64 ys R = 12KQ Tied to VOC1 C = 6.8nF Tied to Ground FLP2 Free Running Line Period 27 BS | R = 12.3KQ | C =2.2nF 0TS | Oscillator Threshold for Line Output Pulse Triggering 5 Vv AT | Supply Voltage Influence on Free-running Period 0.051 us av | G77 S&S:THOMSON wie | SY imcromacrnomcs 975

(Tamb = 25°C ; VCC1 = 10V ; V14 = 30V) [Symbol[ Parameter | Min. | Typ. | Max. | Unit | [| Line Output png [ot Lv1 Saturation Voltage to Ground (1 = 200mA) 15 v CPW_ | Output Pulse Width (line period = 64us) 24 us (see figure application n°1) Output Voltage : Without Video Signal 8 v With Video Signal 07 12 v [Frame Osattator in PT LT9 Low Threshold Voltage 18 2 v HT9 High Threshold Voltage 26 34 Vv BIg Bias Current 100 oA DRO Discharge Impedance 500 a2 FFP1 | Free Running Frame Period 214 22.5 ms R = 845KQ Tied to VCC1 C = 180nF Tied to Ground FFP2 | Free Running Frame Period 14.3 ms R = 425KQ. C =220nF MFP Minimum Frame Period 146 17 ms (I7 =~ 100A) with the Same RC FG Frame Sawtooth Gain between Pin 9 and non-inverting -04 Input of the Frame Amplifier (internal) [Frame Power Suply SSCSCSCt ||| 14 | Operating Voltage (with flyback generator) 58 Vv 4 ‘Supply Current (V14 = 30V) 25 mA |__| Flyback Generator Supply envz] ft Operating Votage [wo [fa fv | a Saturation Voltage to Ground LVI5SA 115 =O01A 60 mv LV15B HS =1A 04 Vv ‘Saturation Voltage to VCC2 HVISA 115 =-0.1A 13 v HV15B WS =-1A 17 v Saturation Voltage to VCC2 in Flyback Mode (V15 > V14) FV15A. 115 =01A 17 v FV15B 115 =1A 26 Vv Flyback Generator Pin 12 And 13 * Flyback Transistor on (output = high state) F2DA | V3/2 With Is > 2 =O0.1A 16 v F2DB Ig > aetA 3 v FSVA | V2/3 With lz — 3 =0.1A 0.9 Vv FSVB lea =1A 2 Vv ' * Flyback Transistor off (output = V14 - 8V) | V12 =V14 =30V | FCI | Leakage Current Pin 12 yA ane fy sGs-tHomson | SY/ wwcromscraomce 976

GENERAL DESCRIPTION = Asawtooth generator for the frame with synchro- ion all f ft The TEA2017 performs all of the video and power end ne curing the last fourth ofthe free functions required to provide signals for the direct’ A power amplifier for direct drive of the frame drive of a line darlington and the frame yoke. ‘yoke with overload, short circuit and thermal pro- It contains : tections. ; = Asynchronizing separator with the slice level of Aline phase detector and a voltage control oscil- synchro separation determined by the external lator. components. = An open collector output for the direct drive of a = An integrated frame synchronizing separator wi- line darlington. thout external components. = A muting output. SYNCHRONIZATION SEPARATOR CIRCUIT Veer a 2 cr io Input (] Pas compensation I J 8 sth si ] J) | : [J] ™ ST/ imcromscrnowce 977

The sync-tip DC level on pin 7 is clamped to 3.8V. When the video signal on pin 7 decreases under the The slice level of sync-separation present oncapa- _ capacitor voltage the transistors Q1 and Q2 provide citor C1 depends on the value of resistorR1 and R2. current for the other parts of the circuit. FRAME SEPARATOR vz Co a4 rc] | Q st st2 wis

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O | 7, ar il ] E88 TEAZ017-04 The sync-pulse allows the discharge of the capaci- _ pulse permits the complete discharge of the capa- tor by a2x I current. Aline sync-pulse is notable to _citor, so during the frame sync-pulse Q3 and Q4 pro- discharge the capacitor under Vz/2. A frame sync __vide current for the other parts of the circuit. _ one jy SSS:THOMSON STF icnomacraomcs: 978

LJ LJ . a Nh od Y compartor <> db | ! E86 TEAZ017-05 The oscillator thresholds are internally fixed by re- the internal resistor R4. The voltage control is ap- sistors. The discharge of the capacitor depends on _ plied on resistor R5. PHASE COMPARATOR | 1 | ne | | Flyback | Ategrated 1 met YO ‘Sync pulse ' Output arene | 88 TEA2017-06 THOMSON we | GT Scam 979

The sync-pulse drives the current in the compara- _other part. When the line flyback and the video si- tor. The line flyback integrated by the extemal net- _ gnal are synchronized, the output of the compara- work gives on pin 3 a saw tooth, the DC offsetof this _tor is an altemately negative and positive current. saw tooth is fixed by VC. The comparator outputpro- The frame sync-pulse inhibits the comparator to pre- vides a positive current for the part of the signalon _vent frequency drift of the line oscillator on the frame pin 3 superior to VC and a negative current for the beginning. Veer [I~ ve SL2 sn 68TEA2017-07 LINE OUTPUT (PIN 1) the darlington base. The output pulse time is 22us It is an open collector output which is able to drive fr 4 64ys period. pulse current of 500mA for a rapid discharging of ane . | 980

8 () INPUT CURRENT f (] COMPENSATION Frame i sync pulse I BS Bl | g NF i | To frome amolitioe E88TEA2017-08 |__ The oscillator thresholds are internally fixed by re- Its positive input is directy connected to the invert sistors. The oscillators synchronized during the last _ of the frame saw tooth. fourth of the free run period. The input current du- ring the charge of the capacitors less than 1007A. MUTING OUTPUT It delivers voltage pulse during the line fly-back if _ FRAME OUTPUT AMPLIFIER there is no video signal on the input. The output im- This amplifiers able to drive directly the frame yoke. _pedance is 1k2. Its output is short circuit and overload protected ; it contains also a thermal protection. iGROnLECTROeCs 981

APPLICATION N’‘1 (without internal flyback generator) TYPICAL BLACK-WHITE TV APPLICATION FOR 14” - 110° SCREEN (with yoke L = 27 mH, R = 15, Ipp = 0.5A) é iif bos gy 1 43 H al i ' i tHE 3 * sf) al = . 3 a o

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APPLICATION N°2 (with internal flyback generator) TYPICAL BLACK-WHITE TV APPLICATION FOR 14” — 110° SCREEN (with yoke L = 27 mH, R = 152, Ipp = 0.5A) a <2 ; i: 8 « 233 ce Sti = is & 8 eo, gh oe 1 53 5 Al g ' = Hi sh ods Fl « all Us 3 . g Bh --co- % : : le g = z 8 [a “ i g 7 i. ot HH E a o ° att Bs 5 . 5 ad ' if Bee? é ga | e88TEA2017-10 — a 11/12 983

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