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Details, datasheet, quote on part number:NTE747
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Datasheet text preview:
NTE747 Integrated Circuit Low Level Video Detector
Description: The NTE747 is a low level video detector in an 8Lead DIP type package featuring very linear video characteristics and bandwidth. Designed for color and monochrome television receivers, replacing the third IF, detector, video buffer, and the AFC buffer. Features: D Conversion Gain: 34dB Typ D Video Frequency Response @ 6MHz < 1dB D Input of 36mV Produces 3VPP Output D High Video Output: 7.7VPP D Fully Balanced Detector D High Rejection of IF Carrier D Low Radiation of Spurious Frequencies Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Power Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24V Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26mA Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1VRMS Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625mW Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mW/°C Operating Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +75°C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65° to +150°C Electrical Characteristics: (TA = +25°C, V+ = 20V, Q = 30, fC = 45MHz unless otherwise specified)
Parameter Supply Voltage Range Supply Current Zero Signal DC Output Voltage Maximum Signal DC Output Voltage Input Signal Voltage Pin 6 5, 6 4 4 7 3VPP Video Output, 90% Modulation Test Conditions Min 12 6.8 Typ 20 15 7.7 0 36 Max 24 8.3 Unit V mA V V mVRMS
Electrical Characteristics: (TA = +25°C, V+ = 20V, Q = 30, fC = 45MHz unless otherwise specified)
Parameter Maximum Output Voltage Swing Carrier Rejection at Output Carrier Output Voltage Pin 4 4 3VPP Output, fout = fC 3VPP Output, fout = 2fC 3dB bandwidth of IF carrier 3dB Bandwidth of Video Output Input Resistance Input Capacitance Internal Resistance Internal Capacitance AFT Buffer Output AFT Buffer DC Level 7 4 7 7 2, 3 2, 3 1 1 At Carrier Frequency, Note 1 Across Tuned Circuit Test Conditions Min 42 Typ 7.7 60 1 3 80 12.3 3.5 3.0 4.4 1.0 350 6.5 Max Unit VPP dB mVPP mVPP MHz MHz k pF k pF mVPP V
Note 1. Measured with 10 times probe.
Pin Connection Diagram
AFT Buffer 1 Tuned Circuit 2 Tuned Circuit 3 Primary Video Output 4
8 7
GND IF Input
6 VCC 5 Aux Video Output
8
5
.260 (6.6)
1
4
.390 (9.9) Max .155 (3.93)
.300 (7.62)
.100 (2.54) .300 (7.62)
.145 (3.68)
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