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RGB VIDEO OUTPUTAMPLIFIER
.
THREE INDEPENDENT VIDEO AMPLIFIERS
WITHTYPICAL SR > 1000V/µs
.
CRT-CATHODE SENSINGOUTPUT FOR SEQUENTIALSAMPLING
.
INTERNAL G1 VOLTAGEGENERATOR
.
CATHODE SHORTCIRCUITPROTECTION
.
FLASHOVER PROTECTION OF THE OUTPUTSTAGES
.
COMPENSATES POSITIVE AND NEGATIVE
TUBE LEAKAGES
DESCRIPTION
Realizedwitha highvoltagebipolartechnology,the
TDA8153is a monolithic RGB video output stage
for TV color applications. It drives the CRT cathodesdirectlyandoffersa videobandwidthcompatible with CCIR standards. In addition to three
independent video amplifiers, the device features
an internal generator for the first grid voltage,
flashover protection, cathode short circuit protection and a commoncut-off sensing output for use
in sequentialsampling applications.
The TDA8153 is supplied in a 15 lead Multiwatt
plasticpower package.
TDA8153
MULTIWATT15
(Plastic Package)
ORDER CODE : TDA8153
PINCONNECTIONS
January 1993
Tab connected to Pin 8
15
14
13
12
11
10
GREEN OUTPUT
BLUE FEEDBACK
BLUE OUTPUT
CUT-OFF
V
S
V
REF
9
8
7
6
5
4
3
2
1
BLUE INPUT
GROUND
GREEN INPUT
RED INPUT
FIRST GRIDE VOLTAGE
V
H
RED OUTPUT
RED FEEDBACK
GREEN FEEDBACK
8153-01.EPS
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TDA8153
PIN FUNCTIONS
N° Name Function
1 GREEN
FEEDBACK
2 RED FEEDBACK Feedback Output for ’Red’ Amplifier. See pin 1.
3 RED OUTPUT Output of ’Red’ Video Amplifier. See pin 15.
4V
H
5 FIRST GRID
VOLTAGE
6 RED INPUT Input of ’Red’ Video Amplifier. See pin 7.
7 GREEN INPUT Input of ”Green” Video Amplifier. The bias voltage at the inputs is equal to V
8 GROUND Ground Connection(pin 8 is also connected to the tab).
9 BLUE INPUT Input of ’Blue’ Video Amplifier. See pin 7.
10 V
11 V
ref
s
12 SAMPLING Cathode Current Sampling Output. Provides sum of cathode currents for automatic cut-off
13 BLUE OUTPUT Output of ’Blue’ Video Amplifier.See pin 15.
14 BLUE FEEDBACK Feedback Output for ’Blue’ Amplifier. See pin 1.
15 GREEN OUTPUT Output of the ’Green’Video Amplifier.The output is protected against CRT flashovers. Other
Feedback Output for ’Green’ Amplifier. The optimal value for the resistor connected here to set
gain is 68kΩ as shown in fig. 1.2. Other feedback connections are pin2 (red) and pin 14 (blue).
High VoltageSupply for Amplifier Stages, Typically 200V (see fig. 1.2).
Output providing DC voltage for first grid of CRT, typically V
inputs are pin 6 (red) and pin 9 (blue).
s+VBE
.
+2VBE. Other
ref
The reference voltage for thethree amplifiers isavailable on this pin. Typical value is1.6V. The
capacitor connectedbetweenpin 10 andgroundeliminatesAC crosstalk between the amplifiers.
Supply VoltageInput for Low Voltage Circuitry, typically 12V.
adjustment withvideo processors usingthe sequential system. The three currentgenerators I
and I3bias the inputs of this circuit which performs the cut-off adjustment, allowing also
I
2
adjustment with in flowing CRT leakages.
outputs are pin 3 (red) and pin 13 (blue).
,
1
8153-01.TBL
SCHEMATIC DIAGRAM
4
11
6
Q4
Q6
R4 R5
R1
Q1
D2 D3
2
12
Q5
R3
R2
R25
Q2
D4
Q31
7
3
Q10
R9 R10
R6
D5 D6
Q11
Q12
Q7
R26
Q32
R7
D7
15
Q8
1
R9
9
Q16
Q15
R14 R15
R11
Q13
D8 D9
14
R13
Q17
R12
R27
D11
Q14
D10
Q33
I3I2I1 I4
13
5
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10
1.6V
8
8153-02.EPS
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BLOCK DIAGRAM
TDA8153
RED IN
GREEN IN
BLUE IN
V
S
11 4
2
6
1
V
S
7
14
V
S
9
HV
OUTPUT
CUT-OFF
SENSING
HV
OUTPUT
CUT-OFF
SENSING
HV
OUTPUT
CUT-OFF
SENSING
V
H
SHORT CIRCUIT
PROTECT
3
V
H
SHORT CIRCUIT
PROTECT
15
V
H
SHORT CIRCUIT
PROTECT
13
12
RED OUT
GREEN OUT
BLUE OUT
CUT-OFF
SAMPLING
REFERENCE
VOLTAGE
10 8
TDA8153
ABSOLUTEMAXIMUM RATINGS
Symbol Parameter Value Unit
V
H
V
S
P
tot
V
T
stg,Tj
T
oper
High VoltageSupply 250 V
Low VoltageSupply 35 V
Power Dissipation at T
Input Voltage V
I
=90°C20W
case
s
Storage and Junction Temperature – 25, + 150 °C
Operating Ambient Temperature 0, + 70 °C
THERMALDATA
Symbol Parameter Value Unit
R
th (j-c)
Thermal Resistance Junction-case Max 3 °C/W
8153-03.EPS
8153-02.TBL
8153-03.TBL
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TDA8153
ELECTRICALCHARACTERISTICS (ref. to test andapplicationcircuits, VHT= 200V, VS= 12V,
=10pF *, heatsink Rth=9oC/W, T
C
L
Symbol Parameter Test Conditions Pin Min. Typ. Max. Unit Fig.
V
V
I
High Voltage Supply 4 200 220 V 1-2
HT
Low Voltage Supply 11 10.8 12 13.2 V 1-2
S
Quiescent Drain Current Vin = 0, Vodc = Vsat H 4 10 15 mA 1
HT
Quiescent Drain Current Vin = 0, Vodc = Vsat H 11 10 17 mA 1
I
S
Vref ReferenceVoltage 10 1.4 1.6 1.9 V 1
Vg1 CRT G1 Voltage Supply 5 V
Vsat H Output Saturation Vin = 0, Vdc = – 3V 3
Vsat L Output Saturation Vin = 0, Vdc = 9V 3
I1,I2,I
3
Vodc Quiescent Output Voltage Inputs Floating 3
Vo Peak-to-peakOutput Swing f = 10KHz 3
∆Vodc∆TDC Output Voltage versus
Temperature Vodc = 150V
∆Vodc∆TDC Differential Voltage
versus Temperature
GVo Open-loop Gain Vin = 50mVpp, f = 10kHz 50 56 dB 1
GVc Closed-loop Gain Vin = 1.5Vpp, f = 10kHz 20 25 dB 1
Bw Video Bandwidth (–3 dB) Vobl = 125V, 0dB at f = 100kHz
tr Rise Time Vo= 100Vpp; Vobl = 150V
tf Fall Time Vo= 100Vpp; Vobl = 150V
∆T DifferentialRise and Fall Time 20 ns 2
Overshoot Vo= 100Vpp, Vobl= 150V
Undershoot Vo = 100Vpp ;Vobl =150V
* CL = 10pF is the sum of the P.C. board capacitance (with socket) and the cathode capacitance of the CRT.
=25oCunless otherwise specified)
amb
See schematic diagr.
Vin = 0 ; Vodc = 150V
Tamb = 0 ÷ 70°C
Vodc = 150V
Tamb = 0 ÷ 70°C
Vo = 80Vpp
50Vpp
10Vpp
f = 100kHz, Duty Cycle = 0.5
f = 100kHz, Duty Cycle = 0.5
f = 100kHz, Duty Cycle = 0.5
f = 100kHz, Duty Cycle = 0.5
13
s
Vbe
V
HT
–3V
+
V1
V1
15
13
V
s
V1
15
12 7 15 20 µA1
123 V 1
13
15
170 Vpp 1
13
15
3
13
0.03 V/°C1
15
3
0.015 V/°C1
13
15
4.5
6.5
12
6.0
8.0
15
MHz 2
80 120 ns 2
80 120 ns 2
5%2
5%2
8153-04.TBL
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