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TIBPAL16L8--10MJB ,High-Performance Impact-X<TM> PAL<R> Circuits 20-CDIP -55 to 125
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TIBPAL16L8--15MJB ,High-Performance Impact<TM> PAL<R> Circuits 20-CDIP -55 to 125block diagrams (positive logic)TIBPAL16L8’& ≥1ENO732 X 64O716 x I/O710 16I7 I/OI/O76 16I/O7I/O7I/O7 ..
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TIBPAL16L8-25CFN , LOW-POWER HIGH-PERFORMANCE IMPACT E PAL CIRCUITS
TDA8218
HORIZONTAL AND VERTICAL DEFLECTION CIRCUIT
TDA8218HORIZONTAL AND VERTICAL DEFLECTION CIRCUIT
POWERDIP16+2+2(Plastic Package)
ORDER CODE: TDA8218 DIRECT FRAME-YOKE DRIVE(± 1A). COMPOSITE VIDEO SIGNAL INPUT CAPA-
BILITY. FRAME OUTPUT PROTECTION AGAINST
SHORT CIRCUITS. PLL. SUPER SANDCASTLE OUTPUT. VERY FEW EXTERNAL COMPONENTS. VERYLOW COST POWER PACKAGE. STABLE FRAME BLANKING PULSE, GEN-
ERATED BY EXTERNAL RC, FOR COMPATI-
BILITY WITH TEA 5640
FRAMEOSCILLATOR
FRAMEFLYBACKGENERATOR
GROUND
GROUND
POWERAMPLIFIERINPUT
FRAMEPOWER SUPPLY
FRAMEOUTPUT LINE OSCILLATOR
PHASEDETECTOR
LINE SAWTOOTH INPUT
GROUND
GROUND
LINE OUTPUT
LINE FLYBACK
SUPER SANDCASTLE OUTPUT
VIDEOINPUTVCC1
VCC2
FRAMEBLANKINGR.C. NETWORK
BURSTKEY R.C. NETWORK
PIN CONNECTIONS
DESCRIPTIONThe TDA8218isan horizontal and vertical deflec-
tion circuit with super sandcastle generator. Used
with automatic PAL/SECAM decoder TEA5640,
this IC permitsa complete low-cost solution for
PAL/SECAM applications.
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value UnitVCC1 Supply Voltage 30 V
VCC2 Flyback Generator Supply Voltage 35 V Frame Power Supply Voltage 60 V
I10NR Frame Output Current (non repetitive) ±1.5 A
I10 Frame Output Current (continuous) ± 1A
V17 Line Output Voltage (external) 60 V
IP17 Line Output Peak Current 0.8 A
IC17 Line Output Continuous Current 0.4 A
TSTG Storage Temperature -40to+ 150 oC Max Operating Junction Temperature + 150 oC
TAMB Operating Ambient Temperature 0to70 oC
8218-01.TBL
THERMAL DATA
Symbol Parameter Value UnitRTH(j-c) Max Junction-case Thermal Resistance 10 o C/W
RTH(j-a) Typical Junction-ambient Thermal Resistance
(Solderedona 35μm thick 45cm2PC Board copper area) o C/W Max Recommended Junction Temperature 120 oC
8218-02.TBL
Vcc2
Vcc1
YOKE
Vcc1
Vcc1
detector
Frame-Synchro
generator
Burstgate pulse
generator
Line
oscillator
Output
stage
generator
Power
stage8 9 3 414
Video
Input
Line
Flyback
Input
stage
Frame
blanking
generator
Frame
oscillator
Vcc1
Phase
detector
F.B. RC
Lineflyback
Flyback
8218-02.EPS
BLOCK DIAGRAM
TDA8218
ELECTRICAL CHARACTERISTICSVCC1 =10V, TAMB =25oC (unless otherwise specified)
Symbol Parameter Min. Typ. Max. UnitSUPPLY(Pin1)
ICC1 Supply Current 15 22 mA
VCC1 Supply Voltage 9 10 10.5 V
VIDEO INPUT (Pin 20)
V20 Reference Voltage (I20= -1μA) 1.4 1.75 2 V
MWF Minimum Widthof Frame Pulse
(when synchronizedwith TTL signal) μs
LINE OSCILLATOR (Pin11)
LT11 Low ThresholdVoltage 2.8 3.2 3.6 V
HT11 High Threshold Voltage 5.4 6.6 7.8 V
BI11 Bias Current 100 nA
DR11 Discharge Impedance 1.0 1.4 1.8 kΩ
FLP1 Free Running Line Period= 34.9kΩ Tiedto VCC1,C= 2.2nF Tiedto Ground) 64 66 μs
OT11 Oscillator Thresholdfor Line Output
Pulse Triggering
4.6 V
Horizontal Frequency Drift with Temperature (see application) 2 Hz/oC
LINE OUTPUT(Pin 17)
LV17 Saturation Voltage (I17= 200mA) 1.1 1.6 V
OPW Output Pulsewidth (line period= 64μs) 26 28 30 μs
LINE SAWTOOTH INPUT (Pin 13)
V13 Bias Voltage 1.8 2.4 3.2 V
Z13 Input Impedance 4.5 5.8 8 kΩ
PHASE DETECTOR (Pin 12)
I12 Output Current During Synchro Pulse 250 350 500 μA
RI12 Current Ratio (positive/negative) 0.95 1 1.05
LI12 Leakage Current -2 +2 μA
CV12 Control RangeVoltage 2.60 7.10 V
FRAME BLANKING GENERATOR (Pin8)
External R.C. Network (Typical values:R= 100kΩ,C= 22nF)
Tfb Blanking Time (PIn19,Tfb=K8 .R.C.) 1.35 ms Time Blanking Coefficient 0.588 0.613 0.644
IO8 Output Current duringthe Frame Blanking:V8=2V - 0.2 1 μA
II8 Input Current after the Frame Blanking:V8=7V 300 450 600 μA
FRAME OSCILLATOR (Pin2)
LT2 Low ThresholdVoltage 1.6 2.0 2.3 V
HT2 High Threshold Voltage 2.6 3.1 3.6 V
DIF2 LT2- HT2 1.0 V
BI2 Bias Current 30 nA
DR2 Discharge Impedance 300 470 700 Ω
FFP1 Free Running Frame Period= 866kΩ Tiedto VCC1,C= 220nFTiedto Ground)
20.5 23 25 ms
MFP Minimum Frame Period(I20= -100μA) withthe Same RC 12.8 ms
FPR Frame Period Ratio= FFP/MFP 1.7 1.8 1.9
8218-03.TBL
TDA8218
ELECTRICAL CHARACTERISTICSVCC1 =10 V,TAMB =25oC (unless otherwise specified)
Symbol Parameter Min. Typ. Max. UnitFRAME OSCILLATOR (Pin2) (continued) Frame Saw-tooth Gain Between Pin1 and non Inverting Inputofthe
Frame Amplifier
Vertical Frequency Drift with Temperature (see application) 4.10-3 Hz/oC
FRAME POWER SUPPLY (Pin9) Operating Voltage (with flyback Generator) 10 58 V Supply Current (V9= 30V) 9 15 mA
FLYBACK GENERATOR SUPPLY (Pin3)
VCC2 Operating Voltage 10 30 V
FRAME OUTPUT (Pin 10)
Saturation Voltageto Ground (V9= 30V)
LV10A I10= 0.1A 0.06 0.6 V
LV10B I10=1A 0.37 1 V
Saturation VoltagetoV9 (V9= 30V)
HV10A I10= -0.1A 1.3 1.6 V
HV10B I10= -1A 1.7 2.4 V
Saturation VoltagetoV9in FlybackMode (V10> V9)
FV10A I10= 0.1A 1.6 2.1 V
FV10B I10=1A 2.5 4.5 V
FLYBACK GENERATOR (Pin3 and Pin4)
Flyback Transistoron (output= high state), VCC2= 30V, V4/3 with
F2DA
F2DB→3= 0.1A→ 3=1A
Flyback Transistoron (output= high state), VCC2= 30V, V3/4 with
FSVA
FSVB→ 4= 0.1A
I3 → 4 =1A
Flyback Transistoroff (output=V9- 8V),V9- VCC2= 30V
FCI Leakage Current Pin3 170 μA
SUPER SANDCASTLE OUTPUT (Pin 19)
Output Voltages(R load= 2.2kΩ)
SANDT2 Frame blanking pulse level 2 2.5 3 V
SANDL2 Line blanking pulse level 4 4.5 5 V
BG2 Burst key pulse level 8 9 V
Pulses width and timing
SC3 Delay between middleof sync pulse and leading edgeof burst key pulse 2.3 2.7 3.1 μs
SC2 Durationof burst key pulse
Vertical blanking pulse width: Definedby external R.C. Pin8
3.7 4 5 μs
LINE FLYBACK INPUT (Pin 18)
Switching level 2 V
Maximum imput currentat VPEAK= 800V 8 mA
Limiting voltageat maximum current 4.3 V RC network time constant (Note1) forthe burst key pulse 6 μS
Note: 1.AnRC networkis connectedtothis input.Typical value forthe resistoris 27kΩand 220pFfor thecapacitor.A different time
constantforRC changesthe delay betweenthe middleof theline synchro pulse andthe leading edgeofthe burstkey pulse
8218-04.TBL
TDA8218
The TDA8218 performsall the video and power
functions requiredto provide signals for the line
driver and frame yoke. contains:A synchronization separator An integrated frame separator without external
componentsA saw-tooth generatorfor the frameA power amplifierfor direct driveof frame yoke
(short circuit protected) An open collector outputfor the line driverA line phase detector anda voltage control os-
cillatorA super sandcastle generator.
GENERAL DESCRIPTIONSL2SL1
Video
8218-03.EPS
Figure1: Synchronization SeparatorCircuit
ST2ST1I
SL1
Vz/2
8218-04.EPS
Figure2: Frame Separator
The slice levelof sync-separationis fixedby valueof the external resistors R1 and R2. VRisan internally
fixed voltage.
The sync-pulse allows the dischargeof the capaci-
torbya2xI current.A line sync-pulseis not able discharge the capacitor under VZ/2.A frame
sync-pulse permits the complete dischargeof the
capacitor,so during the frame sync-pulse Q3 and providecurrentfor the other partsof the circuit.
TDA8218
Phase
comparator
output
Vcc1
8218-05.EPS
Figure3: Line Oscillator
Line
Flyback
Sync pulse
Output
CurrentIntegrated
Flyback
8218-06.EPS
Figure4: Phase Comparator
Vcc1SL2
ST1
8218-07.EPS
Figure5The oscillator thresholds are internally fixed by
resistors. The dischargeof the capacitor depends the internal resistor R4. The control voltageis
appliedon resistor R5.
The sync-pulse drives the currentin the compara-
tor. The line flyback integratedby the external net
work giveson pin13a saw tooth, the DC offsetof
this saw toothis fixed by VC. The comparator
output providesa positive currentfor the partof the
signalon pin13 greater thanto VC anda negative
current forthe other part. When theline flyback and
the video signal are synchronized,the outputof the
comparatoris analternativelynegativeand positive
current. The frame sync-pulse inhibits the compa-
ratorto preventfrequency driftof the line oscillator the frame beginning.
TDA8218
