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Details, datasheet, quote on part number:NTE791
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Datasheet text preview:
NTE791 Integrated Circuit TV Chroma Amplifier Demodulator
Description: Compromised of an independent 2stage chroma amplifier, chroma demodulators, resistor matrix, and color difference amplifiers. The NTE791 monolithic silicon integrated circuit is one of two blocks required for a complete color television receiver chroma system. The chroma amplifiers contain the necessary circuitry for automatic chroma control and colorkiller sensing and control. The demodulators and resistor matrix reconstruct the GY color chain to bypass unwanted harmonics. The highlevel emitter follower outputs are current limited for shortcircuit protection. Features: D DC Chroma Gain Control D Improved Filtering for Harmonic Reduction D Output ShortCircuit Current Limiting D SelfContained Bias Regulator D Low Thermal Drift, Typically 1mV/°C D Doubly Balanced Demodulation Absolute Maximum Ratings: Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40° to +85°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65° to +150°C Maximum Voltage and Current Ratings (TA = +25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Table
Current in mA Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Voltage Range in Volts 0 to +16 0 to VCC reference 0 to VCC 0 to +15 0 to +15 0 to VCC 0 to VCC 0 to VCC 0 to +30 0 to +10 0 to VCC 0 to +16 0 to +16 Input 2.0 1.0 2.0 1.0 0 0 0 50 Output 10 50 Note 1 Note 1 Note 1 1.0
Note 1. Maximum continuous current output is 20mA and is limited by package power dissipation. Short circuit current is typically 50mA.
Static Electrical Characteristics: (TA = +25°C, VCC = 24V, Note 2 unless otherwise specified)
Parameter Supply Current Input DC Voltage Chroma Demod RY Inj. BY Inj. Amplifier No. 1 Amplifier No. 2 Output DC Voltage Amplifier No. 1 Pins 12 13 8 7 2 4 3 V1 = V14 (ACC at 1/2 Max. Gain) V1 V14 = 100mV (ACC Max Gain) V14 V1 = 100mV (ACC Min Gain) Demodulator Output Differential Voltage for any two outputs Output Tracking Temperature Coefficient Amplifier No. 1 Sensitivity Amplifier No. 2 Sensitivity Relative Output Voltage RY Relative Output Voltage GY Demodulator AC Unbalanced 90% Gain 10% Gain Killer 9,10,11 Reference Injection = 1Vpp 9,10,11 Reference Injection = 1Vpp 9,10,11 2 4 10 9 11 11 11 BY = 2 Vrms BY = 2 Vrms BY = 2 Vrms BY = 2 Vrms V6 = 3V V6 = 21V V1 V14 = 100mV Adj to Kill V1 V14 = 85mV Output Must Recover Test Conditions Min Typ 40 5.5 6.1 6.1 1.6 1.6 18 13 23 Max 50 Unit mA V V V V V V V V V mV mV/°C mVrms mVrms Vrms mVrms mVrms Vrms Vrms mVrms
13.3 14.3 15.3 6.3 35 1.4 300 2.5 200 1.0 10 50 400 1.8 0.2 600 15 80 500 200 500
1.52 1.68
9,10,11 Chroma Input = 0
Note 2. ACC inputs biased from 11V thru 62k Note 3. BY Reference Injection = 1Vpp < 106°C
Pin Connection Diagram
ACC Input 1 1st Amp Input 2 1st Amp Output 3 2nd Amp Input 4 GND 5 Chroma Gain Control 6 Reference Input 7 Reference Input 8
16 ACC INput 15 Killer Adjust 14 2nd Amp Output 13 Demod Chroma Input 12 VCC 11 B Y Output 10 R Y Output 9 G Y Output
16
9
.260 (6.6) Max
1
8
.785 (19.9) Max
.300 (7.62)
.200 (5.08) Max .245 (6.22) Min
.100 (2.54) .700 (17.7)
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