NTE NTE1727 Datasheet
NTE1727
Integrated Circuit
TV Signal Processor
Description:
The NTE1727 is an integrated circuit designed for color TV deflection signal processing circuits. It
can be operated with a 12V power supply and is suitable for compact and medium–sized color TV
sets.
Features:
D Built–In Vertical Deflection Driver Circuit
D Incorporating Vertical and Horizontal Oscillator Circuit, Operations Highly Stable Against
Changes in sSupply Voltage and Temperature.
D Highly Stable Synchronous Separation Circuit Against Noise
D Built–In High Tension Protector Circuit (X–Ray Protection)
D 12V Supply Voltage Operation
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage
V
10.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7–9
V
14.4V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15–9
Circuit Voltage
V
, V
V
V
V
1–9
10–9
17–9
18–9
12–9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply Current
I7 16mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I15 23mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Current
I2, I
4
I
3
I
5
I6, I
8
I
12
I
13
Power Dissipation, P
D
Operating Ambient Temperature Range, T
Storage Temperature Range, T
stg
opr
–30mA to 0mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–20° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–3mA to 3mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–5mA to 0mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–1mA to 1mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–2mA to 1mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0mA to 30mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0 to 10V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0 to V
0 to 6V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–3V to 2V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
500mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15–9
Note 1. + and – are flow–in and flow–out currents to/from the circuit, respectively.
Electrical Characteristics: (TA = +25°C unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Circuit Current I
Protector Operating Voltage V
Oscillation Starting Voltage
(V • Osc)
Vertical Oscillation Frequency f
fVO Change with Supply
Voltage
Pulse Width (V • Osc) t VCC 1 = 12V, R
Vertical Pull–In Range f
Vertical Sawtooth Wave
Amplification
fVO Change with Ambient
T emperature
V
Change with Ambient
(saw)
T emperature
Oscillation Starting Voltage V
Horizontal Oscillation
Frequency
fHO Change with Supply
Voltage
7
I
15
5–9
V
OSC–s(1)fVO
VO
DfVO/V
VP
V
(saw)
DfVO/TATA = –20° to +70°C – 0.8 – Hz/°C
DV
(saw)/TATA
OSC–s(2)fVO
f
HO
DfHO/V
Apply 12V with 200 to Pin7 7.5 12.0 15.5 mA
V
= 12V 18 25 33 mA
15–9
Apply 12V with 200 to pin7 0.73 – 0.86 V
= 40Hz to 60Hz, 0.7V
VCC 1 = 12V, R
CCfVO
CCfHO
|9.6V to fVO| 14.4V 0 1.0 1.3 Hz
VCC 1 = 12V, R
VCC 1= 12V, R
= –20° to +70°C – – 30 mV
= 10kHz to 20kHz, 1V
V
= 12V, R
CC2
|9.6V to fHO| 14.4V 0 100 200 Hz
or more – – 6 V
P–P
= 9.5kΩ 47 50 53 Hz
OSC(V)
= 9.5kΩ 420 600 780 µs
OSC(V)
= 9.5kΩ – 43 47 Hz
OSC(V)
= 9.5kΩ 0.9 1.2 1.5 V
OSC(V)
or more – – 6 V
P–P
= 2.95kΩ 15.0 15.75 16.25 kHz
OSC(H)
P–P
P–P
/°C
Pulse Width Duty Ratio
(H • Osc)
fHO Control Sensitivity b IO = ±100µA 19 21 23 Hz/µA
fHO Change with Ambient
Temperature
AFC Loop Gain f
AFC Reference Signal Input
Horizontal AFC Output
Horizontal Hold Volume
Horizontal OSC Capacitor
t VCC 2 = 12V 31.5 35.4 38.9 &
DfHO/TATA = –20° to +70°C –1.67 – +1.67 Hz/°C
AFC
µ x b 5800 7700 9600 Hz/rad
Pin Connection Diagram
VCC 2
GND
1
2
3
4
5X–Ray Protect Input
6Horizontal Output
7
8Vertical Output
9 10
18
Video Signal Input
Noise Detector Input
17
16
Sync Separator Output
15
VCC 1
Vertical Integral Capacitor
14
13
Vertical Hold Volume
Vertical Pulse Output
12
Vertical Sawtooth Capacitor
11
DC/AC Feedback Input
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