SGS Thomson Microelectronics TEA2037A Datasheet
HORIZONTALAND VERTICALDEFLECTIONMONITOR
.
DIRECTLINE DARLINGTON DRIVE
.
DIRECTFRAME-YOKEDRIVE (± 1A)
.
COMPOSITE VIDEO SIGNAL INPUT CAPABILITY
.
FRAME OUTPUT PROTECTION AGAINST
SHORT CIRCUITS
.
PLL
.
HORIZONTAL OSCILLATOR FREQUENCY
RANGEFROM 15kHz TO 100kHz
.
VERTICAL OSCILLATOR FREQUENCY
RANGEFROM 30Hz TO 120Hz
.
VERYFEWEXTERNALCOMPONENT
.
VERYLOWCOST POWERPACKAGE
TEA2037A
POWERDIP (8+8)
(Plastic Package)
ORDER CODE : TEA2037A
DESCRIPTION
The TEA2037Aisanhorizontaland verticaldeflection circuit.It uses the same concept as TEA2117
but optimisedfor small screens,for a verylow cost
solution.
PINCONNECTIONS
FRAME OSCILLATOR
FLYBACK GENERATORSUPPLY
FRAMEFLYBACK
GROUND
GROUND
INVERTING INPUT
FRAMEPOWER SUPPLY
FRAME OUTPUT
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC1
VIDEO INPUT
LINE OUTPUT
GROUND
GROUND
LINE FLYBACK
PHASEDETECTOR
LINE OSCILLATOR
September 1996
2037A-01.EPS
1/9
TEA2037A
BLOCK DIAGRAM
16
4
5
12
13
INPUT
15
STAGE
123
FRAME
OSCILLATOR
FRAME
FRAME-SYNC.
OSCILLATOR
SEPARATOR
PHASE
DETECTOR
7
+
POWER
STAGE
-
LINE
OSCILLATOR
FLYBACK
GENERATOR
OUTPUT
STAGE
8
6
14
Yoke
TEA2037A
91011
V
CC1
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
V
I
V
I
p14
I
C14
T
SupplyVoltage 30 V
CC1
Flybcak Generator SupplyVoltage 35 V
2
Frame Power Supply Voltage 60 V
7
Frame Output Current (non repetitive) ± 1.5 A
8nr
I
Frame Output Current (continuous) ± 1A
8
LineOutput Voltage(external) 60 V
14
LineOutput Peak Current 0.8 A
LineOutput Continuous Current 0.4 A
Storage Temperature -40, +150
stg
T
Max. Operating Junction Temperature +150
j
2037A-02.EPS
o
C
o
C
2037A-01.TBL
THERMALDATA
Symbol Parameter Value Unit
R
th (j-c)
R
th (j-a)
ELECTRICALCHARACTERISTICS (T
Symbol Parameter Min. Typ. Max. Unit
SUPPLY (shunt regulator) (Pin 16)
I
CC1
V
∆V
LPS Starting Threshold for Line Output Pulses 5 V
2/9
Junction-case Thermal Resistance Max. 15
Junction-ambient Thermal Resistance
(soldered on a 35µm thick 45cm
Recommended Junction Temperature Max. 120
T
j
2
PC board copper area)
=25oC)
amb
Typ. 45
SupplyCurrent 10 20 mA
SupplyVoltage (I
CC1
VoltageVariation (I
CC1
= 15mA)
CC1
: 10mA to20mA)
CC1
9
-280
9.8
50
10.5
+280VmV
o
C/W
o
C/W
o
C
2037A-02.TBL
2037A-03.TBL
TEA2037A
ELECTRICALCHARACTERISTICS (T
=25oC) (continued)
amb
Symbol Parameter Min. Typ. Max. Unit
VIDEO INPUT (Pin 15)
V
Reference Voltage (I15=-1µA) 1.4 1.75 2 V
15
MWF Minimum Width of Frame Pulse (when synchronized with TTL Signal) 50 µs
V
Sync Bottom to Black Level (R
IN
= 560kΩ) 0.2 0.3 V
SYNC 15
LINE OSCILLATOR (Pin 9)
LT9 Low Threshold Voltage 2.8 3.2 3.6 V
HT9 High ThresholdVoltage 5.4 6.6 7.8 V
BI9 Bias Current 100 nA
DR9 Discharge Impedance 1.0 1.4 1.8 kΩ
FLP1 Free Running Line Period
(R = 34.9kΩ Tied to V
CC1
, C= 2.2nF Tied to Ground)
62 64 66 µs
FLP2 Free Running Line Period (R = 13.7kΩ, C= 2.2nF) 27 µs
OT9 Oscillator Threshold for Line OutputPulse Triggering 4.6 V
∆F
∆θ
Horizontal Frequency Driftwith Temperature (see application Fig. 8) 2 Hz/
LINE OUTPUT (Pin 14)
LV14 Saturation Voltage (I
= 200mA) 1.1 1.6 V
14
OPW Output Pulse Width (line period = 64µs) 20 22 24 µs
LINE FLYBACK INPUT (Pin11)
V
Bias Voltage 1.8 2.4 3.2 V
11
Z11 InputImpedance 4.5 5.8 8 kΩ
PHASE DETECTOR
I
Output Current during Synchro Pulse 250 450 800 µA
10
RI10 Current Ratio (positive/negative) 0.95 1 1.05
LI10 Leakage Current -2 +2 µA
CV10 ControlRange Voltage 2.60 7.10 V
FRAME OSCILLATOR (PIn 1)
LT1 Low Threshold Voltage 1.6 2.0 2.3 V
HT1 High ThresholdVoltage 2.6 3.1 3.6 V
BI1 Bias Current 30 nA
DR1 Discharge Impedance 300 470 700 kΩ
FFP1 Free Running Line Period
(R = 845kΩ Tied to V
CC1
MFP Minimum Frame Period (I
, C = 180nF Tiedto Ground)
= -100µA) (with the same RC) 12.8 ms
15
20.5 23 25 ms
FFP2 Free Running Line Period (R = 408kΩ, C = 220nF) 14.3 ms
FPR Frame PeriodRatio = 1.7 1.8 1.9
FG Frame Saw-tooth Gain between Pin 1 and non-inverting Input of the
-0.4
Frame Amplifier
∆F
∆θ
Vertical Frequency Driftwith Temperature (see application Fig. 8) 4 ⋅ 10
-3
FRAME POWER SUPPLY (Pin 7)
V
Operating Voltage (with flyback generator) 10 58 V
7
I
SupplyCurrent (V7= 30V) 22 mA
7
FLYBACK GENERATOR SUPPLY (PIn 2)
V
Operating Voltage 10 30 V
2
PP
o
Hz/oC
C
2037A-04.TBL
3/9
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