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| NTE738 Integrated Circuit Color TV Processing Circuit Description: The NTE738 is a chroma IF amplifier with automatic chroma control, color killer, dc chroma control, and injection lock reference system followed by dc hue control. Features: D Minimum Number of External Components required D DC Control of both Chroma Amplitude and Hue Shift D Crystal-Controlled Internal Feedback Oscillator D Built-in Noise Immunity D Schmitt Trigger Color Killer D Automatic Chroma Control D Internal Burst Gate and Gate Pulse Shaping Circuit D High Oscillator Lock-in Sensitivity D Built-in Supply Regulation Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Power Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35mA Horizontal Pulse Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250A Peak Power Dissipation (Package Limitation), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625mW Derate above TA = +25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0mW/C Operating Temperature Range (Ambient), Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +75C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Electrical Characteristics: (VCC = +20V, RS = 390, TA = +25C unless otherwise specified) Parameter Regulated Voltage IS = 35mA IS = 27mA Maximum Undistorted Chroma Output Maximum Chroma Gain Automatic Chroma Control Range (ACC) Chroma Burst Level to Kill Manual Chroma Gain Control Range E(Pin3) = E(Pin14), Note 1 E(Pin3) = E(Pin14), Note 1 -3dB Down from Maximum Undistorted Output, Note 1 Note 1 V(Pin3) V(Pin14) to 0V Test Conditions Min 9.0 - 34 34 - - 50 Typ 9.6 9.2 40 40 19 1.4 60 Max 11.5 - - - - - - Unit V V dB dB dB mVP-P dB Note 1. With 5.0mV(p-p) burst input at pin 5 set E(pin 10) to just "unkill". Electrical Characteristics (Cont'd): (VCC = +20V, RS = 390, TA = +25C unless otherwise specified) Parameter Chroma Input Resistance Chroma Input Capacitance Chroma Output Impedance Horizontal Input Pulse Oscillator Output Oscillator Output Impedance Hue Control Range Oscillator Pull-In Range Oscillator Noise Bandwidth (fN) Static Phase Error with Oscillator Detuning 25mVP-P Burst Amplitude 2.0mVP-P Burst Amplitude Pin Connection Diagram OSC Peak Chroma Output Chroma Control Burst Gate Chroma Input Chroma Bypass GND 1 2 3 4 5 6 7 14 Voltage Regulator 13 OSC Output 12 Hue Control 11 Phase Shift st 10 1 ACC Filter/ Killer Control 9 2nd ACC Filter Test Conditions Min - - - 2.2 100 - Typ 2.3 13 15 3.0 - 15 126 - 900 0.20 0.25 Max - - - 4.0 - - - - - - - Unit k pF VP mV(RMS) degrees Hz Hz deg/Hz deg/Hz V(Pin12) V(Pin14) to 4.3V 100 1200 - - - 8 Crystal 14 8 1 7 .785 (19.95) Max .200 (5.08) Max .300 (7.62) .100 (2.45) .600 (15.24) .099 (2.5) Min |
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