SGS Thomson Microelectronics TDA9102T Datasheet
HORIZO NTAL SECTION
.
SYNCHRONIZATION INPUT : TTL COMPATIBLE, NEGA TIVE EDGE TRIGGERED
.
SYNCHRONIZATION INDEPENDENT FROM
DUTY CYCLE TIME
.
OSCILLATOR : FREQUENCY RANGE FROM
15kHz to 100kHz
.
HORIZONTAL OUTPUT PULSE SHAPER
AND SHIFTER
.
PHASE COMPARATOR BETWEEN SYNCHRO AND OSC ILLAT OR ( PLL1)
.
PHASE C OMPARATOR BETWEEN FLYBACK
AND OSCILLATOR (PLL2)
.
INTERNAL VOLTAGE REGULAT O R
.
DC COMPATIBLE CONTROLS FOR PHASE
AND FREQUENCY
.HORIZONT AL OUTP UT DUTY CYCLE : 41%
TDA9102C/T
H/V PROCESSOR FOR TTL V.D.U
DIP20 (0.25)
(Plastic package)
ORDER CODES : TDA9102C/T
VERTICAL SECTION
.
SYNCHRONIZATION INPUT : TTL COMPATIBLE, NEGA TIVE EDGE TRIGGERED
.
SYNCHRONIZATION INDEPENDENT FROM
DUTY CYCLE TIME
.
OSCILLATOR : FREQUENCY RANGE FROM
30Hz to 120Hz
.
RAMP GENERATOR WITH VARIABLE GAIN
STAGE
.
VERTICAL RAMP VOLTAGE REFERENCE
.
INTERNAL VOLTAGE REGULAT O R
.
DC COMPATIBLE CONTROLS FOR FREQUENCY, AMPLITUDE AND LINEARITY
DESCRIPTIO N
The TDA9102C/T is a monolithic integrated circuit
for horizontal and vertical sync processing in mon ochrome and color video displays driven by input
TTL compatible signals.
The TDA9102C/T is supplied in a 20 pin dual in line
package with pin 1 1 connected to ground and used
for heatsinking.
PIN CONNECTIONS
Substrate Ground
Vertical Frequency Preset
Vertical TTL Input
Vertical Ramp Output
Vertical Amplitude Adjust
Vertical Linearity Adjust
Linearity Output
Vertical Reference Voltage
C13
11
12
13
14
15
16
17
18
19
V
20
S
Horizontal Phase Adjust
10
Phase Comparator 2 Output
9
Horizontal Flyback Input
8
Horizontal Output
7
Horizontal Power Ground
6
C5
5
Horizontal TTL Input
4
Phase Comparator 1 Output
3
C2
2
R1
1
9102T-01.EPS
May 1994
1/7
TDA9102C/T
BLOCK DIAGRAM
DC FREQUE NCY
PRESET
R12
C13
REF
V
19
DC VERTICAL
AMPLITUDE
ADJUSTEMENT
16
13
R18
12
C18
VOLTAGE
S
V
REGULATOR
C2
R1
OSCILLATOR
HORIZONTAL
VOLTAGE
LOW SUPPLY
PROTECTION
VERTICAL
OSCILLATOR
DC VERTICAL
LINEARITY
ADJUSTEMENT
+ 5V
R14
INPUT
SYNC.
VERTICAL
R8
VERTICAL
TTL INTERFAC E
2
ϕ
PHASE
COMPARATOR
C9
INPUT
FLYBACK
HORIZONTAL
R2
DC FREQUENCY
ADJUSTEMENT
R3
C3
HOR.
PULSE
1
ϕ
C1
DC HORIZONTAL
PHASE
ADJUSTEMENT
PHASE
10 3 1 2 1120
COMPARATOR
TDA9102C/T
HORIZONTAL
TTL INTERFACE
4 15
5
S
V
SHAPER
6981417 18
7
+ 5V
R4
2/7
C5
HORIZONTAL
SYNC.
INPUT
9102T-02.EPS
TDA9102C/T
ABSOL UTE MAX IM UM R ATING S
Symbol Parameter Value Unit
V
V
SYNC
I
OH
I
I
P
T
stg
THERMAL DATA
Supply Voltage 18 V
S
Sync Input Peak Voltage + V
S
Output Sinking Peak Current (Pin 7 ; t < 3µs) 2 A
Output Current (Pin 15) - 10 mA
15
Output Current (Pin 19) - 10 mA
19
Total power dissipation (T
tot
< 70oC) 1 W
amb
, TjStorage and Junction Temperature - 40, + 150
V
o
C
9102T-01.TBL
Symbol Parameter Value Unit
R
th(j-a)
Junction-ambient Thermal Resistance 80
ELECTRICAL CHARACT E RIS TICS
(T
= 25oC, VS = 12V, refer to the test circ uits, unles s otherwise sp ecified)
amb
Symbol Parameter Test conditions Min. Typ. Max. Unit
HORIZONTAL SECTION
V
I
V
I
V
K
V
- V1 Control Voltage Range (See technical note 1) 1.6 2.5 V
3
I
K
V
I
T
V
t
t
V
7
t
I
FLY
V
I
I
Supply Voltage Range 10.5 12 15.5 V
S
Supply Current 40 70 mA
S
Voltage Reference at Pin 1 I1 = 0.5mA 3.2 3.5 3.8 V
1
Current at Pin 1 - 1 mA
1
Voltage Swing at Pin 2 3.7 4 4.3 V
2
Free Running Frequency Constant fo = 1/(K0 x R1 x C2) 2.8 3.04 3.2
0
Peak Control Current 3 mA
3
Gain Phase Comparator φ1
3
K3 = 2 x I3 / 360
Sync Threshold Input (neg. edge) ● Sync high
4
Current at Pin 4 ● Input high
4
Input Pulse Duration T = 1/f
4
Monostable Threshold 5.6 6 6.4 V
5
Internal Pulse Width (t5 = C5 x V5 /I5) C5 = 220 pF
5
Output Pulse Duration (low) - T = 1/f
7
H
H
● Sync low
● Input low - 10
@ fH = 27.64kHz 1 0.9T µs
(see technical note 2)
fH = 27kHz
fH = 70kHz
0.38T
0.35T
17
degree
28
0.8
10 µA
3.6 µs
0.41T
0.44T
0.39T
0.43Tµsµs
sat Output Saturation Voltage I7 = 600 mA 1.2 2.5 V
Permissible delay between output pulse
D
leading edge and flyback pulse leading edge
(for keeping a constant duty cycle) ; T =
Flyback Input Current at Pin 8 ● Flyback On
Clamp voltage at Pin 8 ● I
8
Current for switching low the output pulse 0.7 2 mA
8
Peak control current 0.9 mA
9
See technical note 4
@ fH = 27kHz
1
f
H
● Flyback Off
8 =
● I
= - 1mA
8
1mA
0.41 T - t
0.7
-1
0.6
FLY
2mA
- 0.6
o
C/W
µA
µA
mA
9102T-02.TBL
PP
V
V
s
V
V
9102T-03.TBL
3/7
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