NTE1888 Integrated Circuit Horizontal and Vertical Deflection Monitor Features: D Direct Line Darlington Drive D Direct Frame Yoke Drive (± 1A) D Composite Video Signal Input Capability D Frame Output Protection Against Short Circuits D PLL Description: The NTE1888 is both a horizontal and a vertical deflection circuit in one 16–Lead DIP package. Absolute Maximum Ratings: Supply Voltage VCC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V Flyback Generator Supply Voltage V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V Frame Power Supply Voltage V7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60V Frame Output Current, I8 Non–Repetitive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1.5A Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1.0A Line Output Voltage (External), V14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60V Line Output Peak Current, IP14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8A Line Output Continuous Current, IC14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.4A Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C Maximum Operating Junction Temperature, Tj . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Maximum Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15°C/W Typical Thermal Resistance, Junction–to–Ambient, RthJA (soldered on a 35µm thick 45cm2 PC board copper area) . . . . . . . . . . . . . . . . . . . . . . 45°C/W Maximum Recommended Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +120°C Electrical Characteristics: (TA = +25°C unless otherwise specified) Parameter Symbol Supply Current ICC1 Supply Voltage VCC1 Voltage Variation Starting Threshold for Line Output Pulses ∆VCC1 LPS Test Conditions @ Pin16 ICC1 = 15mA ICC1 = 10mA→20mA Min Typ Max Unit 10 – 20 mA 9.0 9.8 10.5 V –280 50 +280 mV – – 5 V Electrical Characteristics (Cont’d): (TA = +25°C unless otherwise specified) Parameter Reference Voltage Minimum Width of Frame Pulse (when synchronized with TTL signal) Symbol V15 Test Conditions Min Typ Max Unit I15 = –1µA 1.4 1.75 2.0 V 50 – – µs 2.8 3.2 3.6 V @ Pin15 MWF Low Threshold Voltage LT9 High Threshold Voltage HT9 6.4 6.6 7.8 V Bias Current BI9 – 100 – nA Discharge Impedance DR9 1.0 1.4 1.8 kΩ Free Running Line Period FLP1 R = 34.9kΩ to Vcc1, C = 2.2nF to GND 62 64 66 µs FLP2 R = 13.7kΩ, C = 2.2nF – 27 – µs @ Pin9 Oscilator Threshold for Line Output Pulse Triggering OT9 – 4.6 – V Horizontal Frequency Drift w/Temperature DF ∆Θ – 2 – Hz/°C I14 = 200mA – 1.1 1.6 V Line Period = 64µs 20 22 24 µs 1.8 2.4 3.2 V 4.5 5.8 8.0 kΩ 250 450 800 µA 0.95 1.0 1.05 Saturation Voltage LV14 Output Pulse Width OPW Bias Voltage V11 Input Impedance Z11 Output Current During Synchro Pulse I10 @ Pin14 @ Pin11 @ Pin10 Current Ratio RI10 Positive/Negative Leakage Current LI10 –2 – +2 µA Control Range Voltage CV10 2.6 – 7.1 V Low Threshold Voltage LT1 1.6 2.0 2.3 V High Threshold Voltage HT1 2.6 3.1 3.6 V Bias Current BI1 – 30 – nA Discharge Impedance DR1 300 470 700 W Free Running Frame Period FFP1 R = 845kΩ to Vcc1, C = 180nF to GND 20.5 23.0 25.0 ms Minimum Frame Period MFP I15 = –100µA, R = 845kΩ to Vcc1, C = 180nF to GND – 12.8 – ms Free Running Frame Period FFP2 R = 408kΩ, C = 220nF – 14.3 – ms Frame Period Ratio FPR Note 1 1.7 1.8 1.9 – –0.4 – – 4.1–3 – Hz/°C 10 – 58 V @ Pin1 @ Pin1 Frame Sawtooth Gain FG Vertical Frequency Drift w/Temperature DF ∆Θ @ Pin1 Operating Voltage V7 @ Pin7 Note 1. Frame Period Ratio = FFP MFP Between Pin1 and Non–Inverting input of the Frame Amplifier w/Flyback Generator Electrical Characteristics (Cont’d): (TA = +25°C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit – – 22 mA 10 – 30 V V7 = 80V, I8 = 0.1A – 0.06 0.6 V LV8B V7 = 80V, I8 = 1A – 0.37 1.0 V HV8A V7 = 30V, I8 = –0.1A – 1.3 1.6 V HV8B V7 = 30V, I8 = –1A – 1.7 2.4 V Saturation Voltage to V7 in Flyback Mode FV8A V8 > V7, I8 = 0.1A – 1.6 2.1 V FV8B V8 > V7, I8 = 1A – 2.5 4.5 V Flyback Transistor ON (Output = High State) F2DA V2/3 with I3 →2 = 0.1A – 1.5 2.1 V V2/3 with I3 →2 = 1A – 3.0 4.5 V FSVA V3/2 with I2 →3 = 0.1A – 0.8 1.1 V FSVB V3/2 with I2 →3 = 0.1A – 2.2 4.5 V V7 = V2 = 30V, Leakage Current Pin2 – – 170 µA Supply Current I7 @ Pin7 Operating Voltage V2 @ Pin2 LV8A @ Pin8 Saturation Voltage to GND Saturation Voltage to V7 Flyback Transistor OFF (Output = V7 – V8) Note 1. Frame Period Ratio = F2DB FCI @ Pin2 & Pin3, V2 = 30V @ Pin2 & Pin3 V7 = 30V FFP MFP Application Notes: The NTE1888 performs all the video and power functions required to provide signals for the direct drive of the line darlington and frame yoke. It contains: D A shunt regulator D A synchronization separator D An integrated frame separator without external components D A saw–tooth generator for the frame D A power amplifier for direct drive of frame yoke (short circuit protected) D An open collector output for the line darlington drive D A line phase detector and a voltage control oscillator Synchronization Separator The slice level of sync separation is fixed by the value of external resistors controlled by an internally fixed voltage. Frame Separator The sync–pulse allows the discharge of the external capacitor by a 2 x I current. Capacitor discharge is held by VZ/2, and a frame sync pulse permits the complete discharge of the capcitor to provide current for the other parts of the circuit. Line Oscillator The oscillator thresholds are internally fixed by resistors. The discharge of the capacitor depends on a internal resistor. Phase Comparator The sync–pulse drives the current in the comparator. The line flyback integrated by the external network gives a sawtooth on Pin11. The comparator output provides a positive current for the part of the signal on Pin11 greater than VCC and a negative current for the other part. When the line flyback and the video signal are synchronized, the output of the comparator is an alternatively negative and positive current. The frame sync–pulse inhibits the comparator to prevent frequency drift of the line oscillator on the frame beginning. Application Notes (Cont’d): Line Output (Pin14) It is an open collector output which is able to drive a pulse current of 800mA for a rapid discharging of the darlington base. The output pulse time is 22µs for a 64µs period. Frame Oscillator The oscillator thresholds are internally fixed by resistors. The oscillator is synchronized during the last half free run period. The input current during the charge of the capacitor is less than 100nA. Frame Output Amplifier This amplifier is able to directly drive the frame yoke. Its output is short circuit and overload protected; it contains also thermal protection Pin Connection Diagram 16 VCC1 Frame OSC 1 Flyback Generator Supply 2 15 Video Input Frame Flyback 3 14 Line Output GND 4 13 GND GND 5 12 GND INV Input 6 11 Line Flyback Frame Power Supply 7 10 Phase Detector Frame Output 8 9 Line OSC 16 9 1 8 .870 (22.0) Max .260 (6.6) Max .200 (5.08) Max .100 (2.54) .700 (17.78) .099 (2.5) Min