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| NTE1469 Integrated Circuit Video IF & AFT Functions: D PIF Amplifier D Video Detector D AFS with Defeat D Noise Canceller D Forward AGC Features: D SAW Filter Connectable Without Preamp D Input Sensitivity: Vin = 50Vrms Typ. D Output Peak-to-Peak Voltage at Video Detector Adjustable Externally. D High S/N under Weak-Input Signal Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Input Voltage, Vin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Vp-p Power Dissipation (TA = +75C), PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625mW Operating Temperature, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +75C Storage Temperature, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +125C Electrical Characteristics: (VCC -12V, TA = 25C, unless otherwise specified) Item Supply Current Input Sensitivity AFC Output Voltage at No Signal Input Signal-to-noise Ratio Max. Input Voltage Output Carrier-Zero DC Voltage Sync Tip Voltage Differential Voltage between Pin 14 and Pin 13 Max, Video Output Voltage Symbol ICC Vin V16 S/N Test Conditions No signal input Vout = 1.35VP-P (Pin 24) VC(AFC) = 0, V15 = 1V Vin(AFC) = 0, V15 = 0 Vin = 3mVrms (no demodulation) S/N = 20log Vout/Vn (Pin 2) Vin = 0, V22 = 1.8V Viin = 3mVrms, m = 75% Pin 2 Pin 24 Pin 21 Pin 9 Min 21.0 22.0 25 5.4 - - - 4.5 3.9 7.35 -10 Typ 27.0 25.5 50 6.5 4.5 53 12 5.8 4.1 7.7 0 Max 34.5 28.4 100 7.7 - - - 7.0 4.3 8.05 +10 Unit mA Vrms V V mVrms V V Vin max V13-14 = 80mVrms, DG = 1dB VW Vp V14,13 Input Voltage: 80Vrms 16mVrms C.W. DC Voltage between Pin 14 and Pin 13 Measure V14,13 Voltage between Pin 14 and Pin 13: 300mVrms C.W. V22 = 1.8V, Measure DC Voltage at Pin 2 Vin: modulation of video sweep. 3mVrms 3V Standardizing the output voltage at 100kHZ Pin 2 VCC = 12V, R3 = 180, DC voltage at Pin 9 C g connecting VCC through 180 2MHZ 4MHZ 6MHZ Vin = 0 Vin = 3mVrms mV V2M - - - - 6.4 5.8 - 0 0 +1.5 7.4 6.4 2.5 - - - 7.9 7.0 V Video Frequency Response fB dB Supply Voltage for IF Block V9 V Small Signal Video Amp. Gain Video Amp. DC Transfer Ratio Video Amp. Bandwidth Noise Canceller Threshold Voltage Noise Canceller Clamp Voltage AFC Detector Sensitivity AAC ADC Bv Input Signal at Pin 3: 10kHZ, 0.1VP-P plus 4.5V bias, Measure AC gain to Pin 24 Input Voltage at Pin 3: 4V DC Voltage at Pin 24 Input Signal at Pin 3: 0 20MHZ Sweep: 0.1VP-P + 4.5V, Frequency when voltage at Pin 24 goes down 3dB Input Signal Waveform 1 is applied to Pin 3. VNS means VN at Pin 3 when the pulse peak at Pin 24 begins to rise up Input Signal Waveform 1 is applied to Pin 3. VNC at Output Signal Waveforn 1 of Pin 24 when VN = 1V fo = 58.75MHZ, Vin(AFC) = 14mVrms, VCC = 12V, V = 10V (1 11V) -1.5 7.25 8 -0.7 7.6 - 0 7.95 - dB V MHZ VNS1 0.3 0.5 0.7 V VNC AFC 0.45 - 0.7 - 0.95 200 V kHZ 10V Electrical Characteristics (Cont'd): (VCC -12V, TA = +25C, unless otherwise specified) Item Symbol Test Conditions fo + 2.0MHZ fo + 1.5MHZ C Output Voltage AFC O for Deviation of Input Frequency VCC = 12V, 12V fo = 58.75MHZ, Vin(AFC) = 5mVrms fo + 0.7MHZ fo 0MHZ fo - 0.7MHZ fo - 1.5MHZ fo - 2.0MHZ Noise Figure IF Input Impedance FI Ziin Voltage at Pin 12 is fixed, Vin = 3mVrms Either Pin 6 or Pin 7 is grounded, Pin 12: 8.0V Cin Rin Min 2.0 1.0 - - 11.0 - - - 30 70 Typ - - - 6.0 - - - 6.0 40 100 Max - - 1.0 - - 11.0 10.0 - 50 140 dB pF V Unit VAFC Pin Connection Diagram Bypass Sound/Video Output Noise Cancel Input Video Detector Adjust Bypass IF Input IF Input Bypass VCC (2) 1 2 3 4 5 6 7 8 9 24 23 22 21 20 19 18 17 16 15 14 13 Video Output AGC Filter Filter VCC (1) AFC Adjust Sync Detector Adjust Sync Detector Adjust AFC Adjust AFC Output VCC (3) Sound Trap Sound Trap RF AGC Output 10 GND 11 AGC Delay Adjust 12 24 13 1 12 1.300 (33.02) Max .520 (13.2) .225 (5.73) Max .100 (2.54) 1.100 (27.94) .126 (3.22) Min .600 (15.24) |
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