NTE705A Integrated Circuit Chroma Demodulator Description: The NTE705A is a monolithic chroma demodulator constructed using the planar epitaxial process. This device demodulates the chroma subcarrier information contained in a color television video signal and provides color−difference signals at the outputs. The low voltage drift of the DC output insures excellent performance in direct−coupled chrominance output circuitry. Features: D Low Output Voltage Drift with Temperature D Doubly Balanced Demodulation D Internal Color−Difference Matrix for NTSC Color TV D 10V Peak−to−Peak EB−EY Output Absolute Maximum Ratings: Supply Voltage, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V Minimum Load Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3kΩ Peak−to−Peak Reference Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V Peak−to−Peak Chroma Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65° to +150°C Lead Temperature (Soldering, 60 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C Electrical Characteristics: (TA = +25°C, V+ = 24V, unless otherwise specifid) Parameter Min Typ Max Unit 5.5 9.0 12.5 mA − 9.0 13.0 mA 16.5 22 25.5 mA eC = 0, TA = +70°C − 22 − mA eC = 0 − 340 430 mW eC = 0, TA = +70°C − 340 445 mW eC = 0 13.2 14.5 15.8 V eC = 0, TA = +70°C 13.0 14.5 16.0 V Temp. Coefficient of DC Voltage at any Output Terminal eC = 0 −5.0 −0.3 +5.0 mV/°C Absolute Value of DC Difference Voltage between any Two Outputs eC = 0 − 0.15 0.6 V DC Voltage at either Reference Terminal eA = eB = eC = 0 − 5.8 − V Supply Current Test Conditions eC = 0, RL = 1MΩ eC = 0, RL = 1MΩ, TA = +70°C eC = 0 Internal Power Dissipation DC Voltage at any Output Terminal Electrical Characteristics (Cont’d): (TA = +25°C, V+ = 24V, unless otherwise specifid) Parameter Test Conditions Min Typ Max Unit DC Voltage at either Chroma Terminal eC = 0 − 3.2 − V Reference Input Resistance eC = 0 − 1.7 − kΩ Reference Input Capacitance eC = 0 − 6.0 − pF Chroma Input Resistance − 0.8 − kΩ Chroma Input Capacitance − 5.0 − pF Peak−to−Peak Chroma Input Voltage EB − EY = 5Vp−p − 0.4 0.7 V Peak−to−Peak ER−EY Output Voltage EB − EY = 5Vp−p 3.5 3.8 4.2 V Peak−to−Peak EG−EY Output Voltage EB − EY = 5Vp−p 0.75 1.0 1.25 V Max. Peak−to−Peak EB−EY Output Voltage eC = 1.5Vp−p 8.0 10 − V EB−EY Demodulation Angle EB−EY = 5Vp−p − 3 − Degrees ER−EY Demodulation Angle EB−EY = 5Vp−p − 109 − Degrees EG−EY Demodulation Angle EB−EY = 5Vp−p − 259 − Degrees ER−EY Demodulation Angle relative to EB−EY Demodulation Angle EB−EY = 5Vp−p 101 106 111 Degrees EB−EY Demodulation Angle relative to EG−EY Demodulation Angle EB−EY = 5Vp−p 96 104 112 Degrees Highest AC Unbalance Voltage at any Ouput Terminal eC = 0 − 0.3 0.8 Vp−p Pin Connection Diagram (Top View) EG − EY 7 ER − EY 8 V (+) 6 5 EB − EY 9 Ref “A” 4 Ref “B” 3 (+) Chroma 1 GND 2 (−) Chroma 1.000 (25.4) Max .250 (6.35) 1.000 (25.4) 4 3 5 2 6 1 9 8 7