SGS Thomson Microelectronics TDA8218 Datasheet

HORIZONTALAND VERTICAL DEFLECTION CIRCUIT

.

DIRECTFRAME-YOKE DRIVE (± 1A)

.

COMPOSITE VIDEO SIGNAL INPUT CAPA­BILITY

.

FRAME OUTPUT PROTECTION AGAINST
SHORTCIRCUITS

.

PLL

.

SUPERSANDCASTLE OUTPUT

.

VERYFEW EXTERNALCOMPONENTS

.

VERYLOW COST POWER PACKAGE

.

STABLE FRAME BLANKING PULSE, GEN­ERATEDBY EXTERNALRC, FOR COMPATI­BILITYWITH TEA5640

TDA8218

POWERDIP 16 + 2 + 2

(Plastic Package)

ORDER CODE : TDA8218

DESCRIPTION

The TDA8218is an horizontal and vertical deflec­tion circuit with super sandcastle generator.Used
with automatic PAL/SECAM decoder TEA5640,
this IC permits a complete low-cost solution for
PAL/SECAMapplications.

PINCONNECTIONS

CC1

FRAMEOSCILLATOR

V

CC2

FRAMEFLYBACKGENERATOR

GROUND
GROUND

POWERAMPLIFIERINPUT

FRAMEBLANKING R.C. NETWORK

FRAMEPOWER SUPPLY

FRAMEOUTPUT LINEOSCILLATOR

1
2
3
4
5
6
7
8
9
10

20
19
18
17
16
15
14
13
12
11

VIDEOINPUTV
SUPERSANDCASTLE OUTPUT
LINEFLYBACK
LINEOUTPUT
GROUND
GROUND
BURSTKEY R.C. NETWORK
LINESAWTOOTHINPUT
PHASEDETECTOR

September 1993

8218-01.EPS

1/9

TDA8218

BLOCK DIAGRAM

Vcc2

Vcc1

Video

Input

Line

Flyback

Vcc1

F.B.

RC

19

20

18

129

Frame

8

blanking

generator

Σ

Lineflyback

detector

Input

stage

Vcc1

Frame

oscillator

Frame-Synchro

generator

Burst gate pulse

generator

14

Power

stage

+

-

Phase

detector

13

12

3

4

Flyback

generator

Output

stage

Line

oscillator

11

YOKE

10

7

17

Vcc1

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

1 Supply Voltage 30 V

V

CC

2 Flyback Generator Supply Voltage 35 V

V

CC

V9 Frame Power Supply Voltage 60 V

I10

I10 Frame Output Current (continuous) ± 1A

V17 Line Output Voltage(external) 60 V

17 Line Output Peak Current 0.8 A

I

P

17 Line Output Continuous Current 0.4 A

I

C

T

STG

T

T

AMB

Frame Output Current (non repetitive) ± 1.5 A

NR

Storage Temperature -40 to + 150
Max Operating Junction Temperature + 150

J

Operating Ambient Temperature 0 to 70

o

C

o

C

o

C

8218-02.EPS

8218-01.TBL

THERMALDATA

Symbol Parameter Value Unit

Max Junction-case Thermal Resistance 10
Typical Junction-ambient Thermal Resistance

(Soldered on a 35µm thick 45cm2PC Board copper area)

Max Recommended Junction Temperature 120

J

40

2/9

R
R

TH(j-c)
TH(j-a)

T

o

C/W

o

C/W

o

C

8218-02.TBL

TDA8218

ELECTRICAL CHARACTERISTICS

=10V,T

V

CC1

Symbol Parameter Min. Typ. Max. Unit

SUPPLY(Pin 1)

Supply Current 15 22 mA
Supply Voltage 9 10 10.5 V

CC1

V

I

CC1

VIDEO INPUT (Pin 20)

V20 Reference Voltage (I20 = -1µA) 1.4 1.75 2 V

MWF Minimum Width of Frame Pulse

(when synchronized with TTL signal)

LINE OSCILLATOR(Pin 11)

LT11 Low Threshold Voltage 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

(R = 34.9kΩ Tied to V

OT11 Oscillator Threshold for Line Output

Pulse Triggering

∆F

Horizontal Frequency Drift with Temperature (see application) 2 Hz/

∆θ

LINE OUTPUT(Pin 17)

LV17 Saturation Voltage (I

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 CurrentDuring 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 (Pin 8)

External R.C. Network (Typical values : R = 100kΩ, C = 22nF)

T

Blanking Time (PIn 19, Tfb= K8 .R.C.) 1.35 ms

fb

K8 Time Blanking Coefficient 0.588 0.613 0.644
I

Output Currentduring the Frame Blanking : V8= 2V - 0.2 1 µA

O8

I

Input Current after the Frame Blanking : V8= 7V 300 450 600 µA

I8

FRAME OSCILLATOR (Pin 2)

LT2 Low Threshold Voltage 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

(R = 866kΩ Tied to V

MFP Minimum Frame Period(I20 = -100µA) with the Same RC 12.8 ms

FPR Frame Period Ratio = FFP/MFP 1.7 1.8 1.9

=25oC (unlessotherwisespecified)

AMB

, C = 2.2nF Tied to Ground)

CC1

= 200mA) 1.1 1.6 V

17

1, C = 220nFTied to Ground)

CC

50 µs

62 64 66 µs

4.6 V

20.5 23 25 ms

o

C

8218-03.TBL

3/9