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NTE7086 Integrated Circuit Sync Deflection Circuit for CRT Display
Description: The NTE7086 is a syncdeflection circuit IC in a 20-Lead DIP type package dedicated to CRT display use. This device can be connected to the NTE1773/NTE1797 (for vertical output use) to form a syncdeflection circuit that meets every requirement for CRT display use. So far, IC's for color TV use have been applied to the syncdeflection circuit for CRT display use and general-purpose IC's such as one-shot multivibrators, inverters, and a lot of transistors have been used to form the peripherals such as the sync input interface and horizontal phase shifter. The NTE7086 contains these peripherals on chip and adopts a stable circuit for horizontal oscillation from 15kHz to 100kHz aiming at improving the characteristics required for CRT display use. Features: D The Horizontal Oscillation Frequency can be Adjusted Stably from 15kHz to 100kHz. D The Horizontal Display can be Shifted Right/Left. D The Horizontal/Vertical Sync Input can be used intact Regardless of the Difference in Pulse Polarity and Pulse Width. D The AFC Feedback Sawtooth Wave can be Obtained by Simply Applying a Flyback Pulse to the IC as a Trigger Pulse. D Any Duty of the Horizontal Pulse Can be Set. D Good Linearity because DC Bias at Vertical Output Stage is Subjected to Sampling Control within Retrace Time. On-Chip Functions: Horizontal Block D AFC D Horizontal OSC D X-Ray Protector D Horizontal Phase Shifter D AFC Sawtooth Wave Generator D Horizontal Pulse Duty Setting
Vertical Block D Vertical OSC D Vertical Sawtooth Wave Generator D Sampling Type DC Voltage Control
Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Maximum Supply Voltage, V10max, V20max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V Allowable Power Dissipation (TA +65C), PDmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 780mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +85C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125C
Recommended Operating Conditions: (TA = +25C unless otherwise specified) Operating Voltage Range, V10opr, V20opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.0V to 13.5V Recommended Supply Voltage, V10, V20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Electrical Characteristics: (TA = +25C, VCC10 = VCC20 = 12V unless otherwise specified)
Parameter Current Dissipation Symbol I10 I20 Vertical Frequency Pull-In Range Vertical Free-Running Frequency with Increased/Reduced Voltage Characteristic of Vertical Frequency Middle-Point Voltage Control Threshold Level Vertical OSC Start Voltage Temperature Coefficient of Amplitude Frequency Vertical Driver Amplification Factor (VGV) with Horizontal AFC Loop Current Horizontal Free-Running Frequency Horizontal OSC Start Voltage with Increased/Reduced Voltage Characteristic od Horizontal Frequency with Temperature Characteristic of Horizontal Frequency Comparison Wave Generation Input Operating Voltage Holddown Operation Start Voltage Horizontal Drive Current V13 I12 0.5 6.0 - - 0.8 12.0 V mA V4 IAFC fH fHv fH center 15.734kHz V10 = 12V 1V 15.735kHz at 12V, TA = -10 to +60C TA = -10 to +60C - -0.028 12 1.0 -750 - -50 -2.9 - - - - - - - - 4.0 V Vp-in fv fVv Test Conditions VCC10 VCC20 Vertical Sync 60Hz fV center 55Hz V20 = 12V 1V 55Hz at 12V Min 12 5 10 50 -0.5 3.8 Typ - - - - - - Max 30 12 12 60 0.5 4.4 Unit mA mA Hz Hz Hz V
0.028 Hz/C 18 1.9 750 4 50 2.9 dB mA Hz V Hz Hz/C
0.6
-
0.9
V
Pin Connection Diagram
Horiz Trigger Input Phase Adjust Time Constant Sync Pulse Width Time Constant FBP Trigger Input Sawtooth Wave Generating Cap Comparison Voltage Generating Cap AFC Output Horiz OSC Time Constant Discharge Resistor
1 2 3 4 5 6 7 8 9
20 Vert Power Supply 19 Vert Trigger Input 18 Vert OSC Time Constant 17 Middle-Point Voltage Control Point 16 Vert Sawtooth Wave Generation 15 Vert Drive Output 14 GND 13 X-Ray Protect Input 12 Horiz Drive Output 11 Horiz Drive Pulse Width Setting
Horiz Power Supply 10
20 1
11 .280 (7.12) Max 10
.995 (25.3) Max
.300 (7.62)
.280 (7.1)
.100 (2.54)
.125 (3.17) Min
.385 (9.8)

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