NTE7083
Integrated Circuit
Vertical Deflection Circuit for
Monitor Applications
Description:
The NTE7083 is an integrated circuit in a 13Lead Staggered SIP type package designed for vertical
deflection primarily in monitors and TV receivers.
Features:
D
Fully Integrated, Few External Components
D
RC Oscillator with Wide Sync Range
D
Guard Circuit for Screen Protection
D
Synchronization by Positive or Negative
Going Sync Pulse
D
Preamplifier
D
Flyback Generator
D
Internal Voltage Stabilizer
D
Dual Frequency Criterion for Automatic
Amplitude SwitchOver
Absolute Maximum Ratings:
Parameter
Symbol
Test Conditions
Min
Max
Unit
Voltages
V
2
0
6
V
V
11
0
24
V
V
12
0
6
V
V
13
0
50
V
Supply Voltages (V
P
)
V
10
0
50
V
V
9
0
50
V
V
7
0
60
V
V
6
0
60
V
V
5
0
6
V
V
4
0
24
V
V
3
0.7
6
V
Currents
I
1
0
1
mA
I
3
+3
10
mA
I
4
0
5
mA
I
6
, I
7
, I
8
Note 1
I
9
1.5
+1.5
A
I
11
0.1
+3.0
mA
Note 1. I
6
, I
7
, and I
8
are limited by SOAR protection circuit that ensures that a shortcircuit between
the output Pin7 and supply voltage or GND does not destroy the output stage. A short circuit
may be soldered into the printed circuit board or may sometimes (nonperiodically) occur
in the applied circuit.
Absolute Maximum Ratings (Cont'd):
Parameter
Symbol
Test Conditions
Min
Max
Unit
Storage Temperature Range
T
stg
25
+150
C
Operating Ambient Temperature Range
T
A
Note 2
20
+70
C
Maximum Junction Temperature
T
J
max
Note 3
+150
C
Total Power Dissipation
P
tot
Note 2
W
ESO Stability
V
ESO
Note 4
2000
+2000
V
Thermal Resistance, JunctiontoAmbient
R
thJA
20
K/W
Thermal Resistance, JunctiontoMounting
Base
R
thJMB
5
K/W
Note 2. The maximum value to the operating ambient temperature range and the power dissipation
depends on the heatsink.
Note 3. Internally liminted by thermal protection: switching temperature point at T
J
= +150
C
8
C.
Note 4. Human body model: 1.5k
, 100pF, 5 pulses.
Electrical Characteristics: (All voltages are measured to V
GND
(Pin8), T
A
= +25
C, V
P
= +23V
unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Voltage Range (Pin10)
V
P
10
45
V
Supply Voltage Range (Pin6)
V
P
10
30
V
Supply Current
I
10
V
10
= 25V, V
5
= 3V without load
12
mA
Supply Current
I
6
V
6
= 25V, V
5
= 1V without load
20
mA
Supply Current
I
6
V
6
= 25V, V
5
= 3V withput load
5
mA
Minimum Output Voltage
V
7
I
7
= 1A
1.40
1.65
V
Maximum Output Voltage
V
7
I
7
= 1A
V
6
2.3
V
6
2.0
V
Output Voltage During Flyback
V
9
I
9
= 1A
V
10
2.2
V
Output Current
I
7
1.3
A
Output Current
I
8
1.3
A
Preamplifier Input Current
I
5
0.1
A
Stabilized Voltage
V
1
6.1
6.8
7.3
V
Blanking Pulse Output Voltage
V
3
5.7
V
Blanking Pulse Output Resistance
R
3
300
Blanking Pulse Output Current
I
3
0
3
mA
Blanking Pulse Duration
t
bl
R = 100
, C = 10pF (Pin12)
640
680
730
s
Output Voltage Ramp Generator
V
11
0.3
20
V
Output Current Ramp Generator
I
11
2
15 x 10
3
A
Output Voltage Frequency Detec-
tor
V
13
Lower Frequency I
13
= 1mA
1.0
V
Leakage Current Frequency
Detector
I
13
Higher Frequency V
13
= 50V
1.0
A
Output Voltage Buffer Stage
V
4
0
20
V
Output Current Buffer Stage
I
4
4.0
mA
Synchronizing Input Voltage
V
3
Positive Sync
1.0
6.0
V
Synchronizing Input Voltage
V
3
Negative Sync
0.5
0.7
V
Electrical Characteristics (Cont'd): (All voltages are measured to V
GND
(Pin8), T
A
= +25
C,
V
P
= +23V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Tolerance of Free Running
Oscillator
Without Sync
3.0
+3.0
%
Oscillator Temperature
Dependency
f/f /
T
C
T
A
= +20
to +100
C
10
4
K
1
Oscillator Voltage Dependency
f/f /
V
P
V
P
= 10V to 30V
4 x 10
4
K
1
Synchronizing Ratio
f
O
/ f
sync
1:2.9
1:3
Pin Connection Diagram
(Front View)
FRQ
C
BP
DU
S
GEN
V
P
C
FLY
OUTPUT
P
P
SUP
PRE
I
S
OUT
SYB
O
OSC
C
OSC
R
GND
13
12
11
10
9
8
7
6
5
4
3
2
1
1
13
.961 (24.4)
.185 (4.7)
.128
(3.28)
.488
(12.4)
.630
(16.0)
.669
(17.0)
.170 (4.32)
.067 (1.7)
.200 (5.08)
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