NTE1632 Integrated Circuit Vertical/Horizontal Sync Separator Description: The NTE1632 separates the horizontal and vertical sync pulses from the composite TV video signal and uses them to synchronize vertical and horizontal oscillators. The NTE1632 is supplied in a 18−Lead DIP type package. Features: D Horizontal sync separator & noise inverter D Horizontal oscillator D Horizontal phase detector (sync to oscillator) D Horizontal output stage D Inhibit of horizontal phase detector & video transmitter identification circuit during vertical oscillator flyback D Stabilizer & supply circuit for staring the horizontal oscillator & output stage directly from the mains rectifier D Duty factor of horizontal output pulse is 50% when flyback pulse is absent D Vertical sync separator D Vertical comparator with internal 3% precorrection circuit for vertical oscillator/sawtooth generator D Vertical driver stage D Vertical blanking pulse generator with external adjustment of pulse duration (50Hz: 21 lines: 60Hz: 17 lines) D Vertical guard circuit D Bandgap 6.5V reference voltage for vertical oscillator & comparator D Synchronized vertical oscillator/sawtooth generator (synchronization inhibited when no video transmitter is detected) D Time constant switch for phase detector (fast time constant during catching) D Slow time constant for noise only conditions D Time constant externally switchable (e.g. fast for VCR) D Second phase detector for storage compensation of horizontal deflection stage D Sandcastle pulse generator (3 levels) D Video transmitter identification circuit D Internal circuit for 3% parabolic precorrection of the oscillator/sawtooth generator. Comparator supplied with precorrected sawtooth & external feedback input Parameter Symbol Min Typ Max Unit I16 − >4 − mA Supply: Minimum Current Required to Start Horizontal Oscillator & Output Stage (Pin 16) Parameter Main Supply Voltage (Pin 10) Supply Current Symbol Min Typ Max Unit VP = V10−9 − 12 − V IP = I10 − 55 − mA Input Signals: Sync Pulse Input Voltage (Peak−to−Peak Value; Negative Going) V5−9(p−p) 0.15 to 1V Output Signals: Horizontal Output Pulse (Open Collector) at I11 = 40mA V11−9 − <0.5 − V Vertical Output Pulse (Emitter−Follower) at I1 = 10mA V1−9 − >4 − V I16 − − 8 mA Supply Voltage (Pin 10) VP = V10−9 − − 13.2 V Total Power Dissipation Ttot − − 1.1 W Storage Temperature Range Tstg −55 to +150°C Operating Ambient Temperature Range Tamb −25 to +65°C Ratings: Start Current (Pin 16) Thermal Resistance: From Junction to Ambient in Free Air Rth J−A − 50 − kW Characteristics: I16 = 5mA: Vp = 12V: Tamb = 25°C (unless otherwise indicated) Supply: Supply Current at Pin 16 Stabilized Supply Voltage (Pin 16) I16 V16−9 Supply Current (Pin 10) I10 Supply Voltage (Pin 10) Vp = V10−9 10 9 4 to 8 mA − 8.7 − V − 55 − mA − <70 − mA − 12 − V 10 to 13.2 V Video Input (Pin 5): Top Sync Level Top−Sync Sync Pulse Amplitude (Peak (Peak−to−Peak to Peak Value) (Note 1) V5−9 5 9 V5−9(p−p) 5 9( ) Slicing Level − Delay Between Video Input & Detector Output t1 − 3.1 − 1.5 to 3.75 − 0.6 V − 0.15 to 1 − 50 V V V − 35 to 65 % % − 0.35 − µs − 0.7 − V − <1 − V − ±800 − Hz Noise Gate (Pin 5): Switching Level V5−9 5 9 First Control Loop (Sync to Oscillator: Pin 8) Holding Range ∆f Catching Range ∆f Control Sensitivity Video with Respect to Oscillator, Burst Key & Flyback Pulse (For Slow Time Constant) − (For Fast Time Constant) ±600 to 1100 Hz − 1 − kHz/µs − 275 − kHz/µs Parameter Symbol Min Typ Max Unit ∆td/∆to − 400 − µs/µs Second Control Loop: p (Horizontal Output to Flyback: Pin 14) Control Sensitivity; Static (Note 2) Control Range Controlled Edge td µs 1 to 50 Negative Phase Adjustment (Via 2nd Control Loop; Pin 14) − 25 − µA/µs ±I14 − <50 − µA Frequency (No Sync) fOSC − 15625 − Hz Frequency Spread (Cosc = 2.2nF; Rosc = 40kΩ) ∆fosc − <4 − % Frequency Deviation Between Starting Point of Output Signal & Stabilized Condition ∆fosc − 6 <8 − % TC − 1.10 −4k−1 − − Output Voltage; High Level V11−9 − <13.2 − V Voltage at which Protection Starts V11−9 11 9 − 0.3 − − 0.5 − Output Voltage; Low Level Start Condition at I11 = 10mA − 0.3 − V11−9 11 9 − 0.5 − − 65 − % − 50 − % Control Sensitivity Maximum Permissible Control Current Horizontal Oscillator (Pin 15): Temperature Coefficient Horizontal Output (Pin 11) Normal Condition at I11 = 40mA Duty Factor of Output Signal During Starting (No phase shift; voltage at pin 11 low) − Duty Factor of Output Signal without Flyback Pulse − Controlled Edge g Duration of Output Pulse (Fig 3) 45 to 55 Negative V V % µs td +to + 2.5 Sandcastle Output Pulse (Pin 17): Output Voltage During: Burst Key V18−9 Horizontal Blanking V17−9 17 9 Vertical Blanking V17−9 17 9 Pulse Duration Burst Key − >10 − − 4.6 − 4.2 to 5 − 2.5 − 2 to 3 V V V tp − 4 − µs Flyback Pulse (note 3) − − − − Vertical Blanking for 50Hz application (−I12: 0 to 0.1mA) for 60Hz application (−I12: typ −.2mA) − − 21 17 −lines Delay Between the Start of the Sync at the Video Input & the Rising Edge of the Burst Key Pulse t2 − 4.9 − Horizontal Blanking 4.5 to 5.3 µs Parameter Symbol Min Typ Max Unit Coincidence Detector: Video Transmitter ID Circuit; Time Constant Switches (Pin 18) (See Fig 2) ±I18 − 300 − µA Voltage During Noise (Note 4) V18−9 − 0.3 − V Voltage Level for In−Sync Condition V18−9 − 7.5 − V Switching Level Slow to Fast V18−9 18 9 − 3.5 − Switching Level Must Function Active; φ1 Fast to Slow V± 8−9 8 9 Vertical Period Counter 3 periods fast V18−9 18 9 Switching Level Slow to Fast (Locking) Mute Function Inactive V18−9 18 9 Switching Level Fast to Slow (Locking) V18−9 18 9 Switching Level for VCR (Fast Time Constant) Without Mute Function V18−9 18 9 Detector Output Current 3.2 to 3.8 − 1.2 − 1.0 to 1.4 − 0.12 − 0.08 to 0.16 − 1.7 − 1.5 to 1.9 − 5.0 − 4.7 to 5.3 − 8.6 − 8.2 to 9.0 V V V V V V Video Transmitter ID Output (Pin 13) Output Voltage Active (No Sync) at I13 = 1mA V13−9 13 9 Output Voltage Active (No Sync) at I13 = 5mA V13−9 Output Voltage Inactive V13−9 13 9 − >10 − − 11 − − >7 − − <0.5 − − 0.1 − − 0.6 − mA V V V VCR Switching (Pin 13): Input Current for Fast Time Constant Phase Detector φ1, with Mute Function Active Input Pulse Amplitude (Peak−to−Peak Value) Input Resistance Delay Time of Sync Pulse (Measured in φ1) I13 0.4 to 0.8 V12−9 (p−p) − <12 − V R12−9 − 2.7 − kΩ to − 1.3 − µs − 0.2 − Duration of Vertical Blanking Pulse (Pin 12) for 50Hz application; 21 lines blanking f 60Hz for 60H application; li ti 17 lines li blanking bl ki >0.15 to <0.3 −I12 mA − <0.1 − −I12 − <0.4 − mA fs − 46 − Hz ∆fS − <4 − % Sychronization Range − − 22 − % Input Current at V3−9 = 6V I3 − <2 − µA Frequency Shift for Vp = 10 to 13V ∆fS − <0.2 − % Temperature Coefficient TC − 1.10−4k −1 − − Maximum Allowed Input Current Vertical Sawtooth Generator (Pin 3): Vertical Frequency (No Sync) Frequency Spread (Cosc = 680nF, Rosc = 180k’ at >26V) Comparator (Pin 2): Parameter Symbol Input Voltage; DC Level Min Typ Max − 4.4 − V2−9 2 9 Unit V 4.0 to 4.8 AC level (Peak−to−Peak) V2−9(p−p) − 1.6 − V Input Current at V2−9 = 6V I2 − <2 − µA Sawtooth Internal Precorrection (Parabolic Convex) − − 3 − % − 3.6 − Vertical Output Stage: Emitter Follower (Pin 1) Output Voltage at I1 = 10mA V1−9 1 9 Output Current V 3.2 to 5 I1 − <20 − mA V2−9 2 9 − 3 − V − 5.7 − Vertical Guard Circuit: Activating Voltage Levels 5V) (Vertical Blanking Level is 2 2.5V) Switching Level Low Switching Level High V2−9 2 9 V 5.3 to 6.1 Note 1 Up to 1V peak−to−Peak the slicing level is constant; at amplitudes exceeding 1V Peak−to− Peak, the slicing level will increase. Note 2 td = delay between negative transient of horizontal output pulse and the rising edge of the flyback pulse. to = delay between the rising edge of the flyback pulse and the start of the current in φ1 (pin 8). Note 3 The duration of the flyback pulse is measured at the input switching level which is about 1V (tf1). Note 4 Depends on DC level at pin 5; value given applicable for V5−9 ∼ 5V. Pin Connection Diagram Vertical Drive 1 18 Coincidence Detector Vertical Feedback 2 17 Sandcastle Output Vertical Frequency Adjust Vertical Sync Separator 3 16 Start Circuit Stabilizer 4 15 Horizontal Frequency Adjust 14 Phase Detector Video Input 5 NTE1632 Horizontal Sync Separator 6 13 Video Transmitter ID & Mute Output Sync Slicer 7 12 Horizontal Flyback Slow Phase Detector 8 11 Horizontal Drive 18 10 1 9 .150 (3.8) .100 (2.54) GND 9 10 VCC .250 (6.35) .870 (22.1) Max .800 (20.3) .125 (3.17) Min