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TDA8185ISTN/a20avaiHORIZONTALAND VERTICAL PROCESSOR


TDA8185I ,HORIZONTALAND VERTICAL PROCESSORTDA8185IHORIZONTAL AND VERTICAL PROCESSOR.503kHz REFERENCE OSCILLATOR.5.5V SUPPLY VOLTAGE INTERNALL ..
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TIBPAL16L8-15MJB ,High-Performance Impact<TM> PAL<R> Circuits 20-CDIP -55 to 125TIBPAL16L8-15M is Not Recommended for New DesignsTIBPAL16L8-15M, TIBPAL16R4-15M®HIGH-PERFORMANCE IM ..
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TIBPAL16L8-25CFN , LOW-POWER HIGH-PERFORMANCE IMPACT E PAL CIRCUITS


TDA8185I
HORIZONTALAND VERTICAL PROCESSOR
TDA8185I
HORIZONTAL AND VERTICAL PROCESSOR
PEAKDETECTOR
SYNC LEVEL
VIDEO INPUT
VIDEODETECTOR
HORIZONTALFLYBACK
PHASE SHIFT FILTER
HORIZONTAL OUTPUT
GROUND
HORIZONTAL SAWTOOTH
PHASECOMP1 FILTER
TIME CONSTANTSWITCH
OSC3
SUPER SANDCASTLE
PROTECTIONFLIP-FLOP
VERTICALSAWTOOTH
REFERENCE
GROUND
VERTICALSAWTOOTH OUTPUT
SYNC STATUS
VERTICALBLANKING
VCR SWITCH
SUPPLYVOLTAGE
PIN CONNECTIONS
DIP24

(Plastic Package)
ORDER CODE:
TDA8185I
.503kHz REFERENCE OSCILLATOR.5.5V SUPPLY VOLTAGE INTERNALLY
REGULATED.VERY SOPHISTICATED SYNC. SEPARATOR. COUNT DOWN TIMING LOGIC.ADAPTS AUTOMATICALLY TO 625
LINE/50Hz AND 525 LINE/60Hz STANDARDS.50/60Hz IDENTIFICATION OUTPUT.AUTOMATIC VERTICAL AMPLITUDE COR-
RECTION 50/60Hz.CRT PROTECTION CIRCUIT.PHASE-CORRECTED HORIZONTAL OUT-
PUT WITH CONSTANT DUTY CYCLE
DESCRIPTION

The TDA8185Iisa monolithic integrated circuitin pins dualin line plastic packageintendedfor TV
signal processing and driving Horizontal and Verti-
cal output stages.It was specially designed for
VCR working conditions.
BIT
COUNTER
VERTICAL
TIMING
LOGIC
50/60
IDENTIFICATION
OUTPUT
SYNC.
AMPLIFIER
BLACK
LEVEL
CLAMP
SYNC.
SEP
SYNC.
LEVEL
DETECTOR
VERTICAL
SYNC.
INTEGRATOR
PEAK
DETECTOR
NOISE
GATE
HORIZONTAL
LOCK
DETECTOR
TIME
CONSTANT
CONTROL
CURRENT
SWITCH
SHUNT
REGULATION
VCO
PHASE
COMPARATOR
FLYBACK
DETECTOR
SAWTOOTH
GENERATOR
PHASE
SHIFTER
HORIZONTAL
FLYBACK/
BLANKING
COINCIDENCE
VERTICALFLYBACK/
BLANKING
COINCIDENCE
VERTICAL
SAWTOOTH
GENERATOR
VERTICAL
GAIN
ADJUSTMENT
BLANKING
SUPER
SANDCASTLE
LOGIC
HORIZONTAL
OUTPUT
PROTECTION
FLIP-FLOP 15 23 20
VCRSWITCH
SYNC.
STATUS
OUTPUT
VERTICAL
RAMP
VERTICAL
RAMP
OUTPUT
VERTICALFLYBACKINPUTVERTICALBANKOUTPUT
PROTECTIONINPUT
SUPER
SAND
CASTLE
OUTPUT
HORIZONTAL
RAMP
HORIZONTAL
FLYBACK
INPUT
BIT
COUNTER
HORIZONTAL
TIMING
LOGIC
VIDEOINPUT
HORIZONTALOUTPUT
PHASE
COMPARATOR
BLOCK DIAGRAM
TDA8185I
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
Supply Voltageat Pin24 (low impedance) 5.25 V
VCC Voltageat Pins,7, 15, 21 20 V Input Signals 5 V
Ptot Total Power Dissipation (Tamb =70 °C) 1 W
Tj,Tstg Storage and Junction Temperature –40to 150 °C
8185I-01.TBL
THERMAL DATA
Symbol Parameter Value Unit

Rth j–pins Thermal Resistance Junction-pins Max 80 °C
8185I-02.TBL
ELECTRICAL CHARACTERISTICS

(VS =5V, VCC =12V, Tamb =25 °C, unless otherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Supply Voltage (pin 24) 4.75 5 5.25 V Supply Current (pin 24) 30 60 85 mA
V24 Stabilized Voltageat Pin24 5.6 V
SYNC. SEPARATOR Peakto Peak Input Signal (negative video signal) 0.3 1 4 V
VIDEO IDENTIFICATION AND VCR SWITCH
V23 VCR Switch Voltage 1.6 2.1 2.4 V Threshold Voltagefor Time Constant Switching 2.3 V Peak Output Current Lock 1 mA
–I4 Output Current 20 μA
OSCILLATOR Free Running Frequency 500 kHz Frequency Control Sensitivity 1.0 kHz/V
V10 Control Voltage Range 2.6to4 V
SYNC–OSCILLATOR PHASE COMPARATOR
I10 Control Peak Curent ± 0.3 mA
I10 VCR Control Peak Current ± 0.6 mA Catching and Holding Range ± 400 Hz
FLYBACK– OSCILLATOR PHASE COMPARATOR Control Voltage Range 2.8 to3.7 V Flyback InputCurrent 0.1
Flyback InputThreshold 5 mA Peak Control Current ± 0.5 mA
Static Control Error 1 % Permissible Delay between Output Pulse and
Flyback Pulse
tflyback =12 μs17 μs
8185I-03.TBL
TDA8185I
ELECTRICAL CHARACTERISTICS (continued)
(VS =5V, VCC =12V, Tamb =25 °C, unless otherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit

COMPOSITE BLANKING AND KEY PULSE (supersandcastle) Key Pulse Output Peak Voltage 10 V Line Blanking Voltage 4.25 4.5 4.75 V Frame Blanking Voltage 2.38 2.5 2.63 V
tKS Phase Relationship between Leading Edgeof Key
Pulse and Middleof Sync. Pulse
2.5 μs Key Pulse Duration 4 μs Vertical Blanking Duration 1.4 ms
FRAME
V20 Output p.p. Sawtooth Voltage 50Hz and 60Hz 2.7 V
V20 Pedestal Voltage 0.3 V
LINE Output Current 50 mA Saturation Voltage I7= 50mA 0.4 V Output Pulse Duration 29 μs
SYNC. STATUS OUTPUT
V21 Output Voltage 50Hz
60Hz
Unlock
6.25 7.45
OVERALL PHASE RELATION SHIP Phase Difference between Middleof Flyback and
Middleof Sync. Pulses μs
VERTICAL BLANKING OUT AND FLY. INPUT
V22 Blanking Output Voltage 4 V
V22 Flyback ThresholdInput 5.7 V
I22 Flyback Current Input 0.1 mA
8185I-04.TBL
Notes:
1. Withtfly =12μsandtI =29μs. The TDA8185Imaybe operatedona5V supply directly. A5.5 Vshunt regulatoris available internallyfor operationon higher
supply voltage; inthis casean external limiting resistoris required.
Withoutthe external limiting resistor care mustbe takento ensure thatthe supply voltage does notexceed 5.5Vor theregulator
will intervene andthe device couldbe damaged.
TDA8185I
1.2nF
C12
C19
C20
1.5nF
150pF10k
VCR
SWITCH
1N4148
R10
4.7k
R13100k
TDA
C16
25V
C17
C1847nF
C22
R25
BU508A
RIZONTA
OUTPUT
R26
0.151N4148R1612K
TDA
C10
35V
1N4001
R121.5
C15
C14
35V
VERTICAL
YOKE
12k
R18
R20
C11
C13
16V
10k
R19
R23
10k
VERT.
ADJ.
12k
R17
100k
LIN.
ADJ.0.18
820k
10nF
4.7nF
R113.6k
C24
22nF
5.6kR7
220k
HORIZONT
PHASE
ADJUSTMENT
C21
47k
VIDEO
SYNC.
STATUS
OUT
PROT.
S.S.C.
OUT
+12V
24k
TDA
8185I

8/19
R22
R14
3.3k
C23
8185I-03.EPS
Figure1:
Horizontal and Vertical Deflectionsfor 30AXC.R.T.
TDA8185I
1.2nF
C12
C19
C20
1.5nF
150pF10k
VCR
SWITCH
1N4148
R10
4.7k
R13100k
TDA
C16
25V
C17
C1847nF
C22
R25
BU508A
RIZONTA
OUTPUT
R26
0.151N4148R1612K
TDA
C10
35V
1N4001
R121.5
C15
C14
35V
VERTICAL
YOKE
6.2k
R18
R20
C11
C13
16V
10k
R19
R23
4.7k
VERT.
ADJ.
10k
R17
100k
LIN.
ADJ.0.18
820k
10nF
4.7nF
R113.6k
C24
22nF
5.6kR7
220k
HORIZONT
PHASE
ADJUSTMENT
C21
47k
VIDEO
SYNC.
STATUS
OUT
PROT.
S.S.C.
OUT
+12V
12k
TDA
8185I

8/19
R22
R14
3.3k
C23
8185I-04.EPS
Figure2:
Horizontal and Vertical Deflectionsfor S4 C.R.T.
TDA8185I
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