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TBA440N Dataheets PDF



Part Number TBA440N
Manufacturers Plessey
Logo Plessey
Description VIDEO IF AMPLIFIER DEMODULATOR
Datasheet TBA440N DatasheetTBA440N Datasheet (PDF)

APLESSEY W Semiconductors. TBA440N / TBA440P TBA440N/P VIDEO IF AMPLIFIER DEMODULATOR The TBA440 (TBA440N for NPN tuners, TBA440P for PNP tuners) comprises a high-gain regulated video IF amplifier, a controlled demodulator andtwo low-resistance video outputs w i t h positive and negative signal as well as the complete key control and delayed tuner control. ABSOLUTE MAXIMUM RATINGS Supply voltage steady transitory Voltage at pin 5 Voltage at pin 4 Voltage at pin 14 Operating ambient temperat.

  TBA440N   TBA440N


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APLESSEY W Semiconductors. TBA440N / TBA440P TBA440N/P VIDEO IF AMPLIFIER DEMODULATOR The TBA440 (TBA440N for NPN tuners, TBA440P for PNP tuners) comprises a high-gain regulated video IF amplifier, a controlled demodulator andtwo low-resistance video outputs w i t h positive and negative signal as well as the complete key control and delayed tuner control. ABSOLUTE MAXIMUM RATINGS Supply voltage steady transitory Voltage at pin 5 Voltage at pin 4 Voltage at pin 14 Operating ambient temperature Total power dissipation atTamb<55°C Ohmic resistance between pins: 8 and 9 15V 16.5V 20V 5V 5V -10° to +60°C 7002m0Wa IF l/P (DIFFERENTIAL) [ DECOUPLING [ J IF l/P (DIFFERENTIAL! ] DECOUPLING 0V [ CONTROL VOLTAGE DECOUPLING [ TUNER AGC [ TBA 440N | P TUNER AGC THRESHOLD CONTROL [ GATING PULSE l/P [ DEMODULATOR TUNING 1 WHITE LEVEL PRESET ] »CC ! VIDEO 0/Pi ] SYNC. LEVEL CONTROL ] DEMODULATOR TUNING DPI 6 FEATURES Fig. 1 Pin connections Complete Video IF in one IC High Sensitivity Positive and Negative Video Signals Gated AGC and Delayed AGC for Tuner White and Black Levels Separately Adjustable Ability to Control PIN Diode Attenuators Fig. 2 TBA440 block diagram 141 TBA440N / TBA440P ELECTRICAL CHARACTERISTICS T«ft Conditioni (unless otherwise stated): T a m b = +25°C Vcc = +'3V Reference point is pin 3 (OV) Characteristic Value Pin Units Min. Typ. Max. Conditions Supply voltage, V c c Current consumption DC output voltage White level deviation a a v v , , , 2 / / av, av1 3 3 Resistance R 1 4 . 3 for A V ^ = 1V AGC threshold V j o = sync pulse level for R10-11 = 0 Regulating slope R1 o-11 /V11 Sync, pulse level with async. or without gating pulses Control current for tuner pre amp. 13 13 11 11 12 12 11, 13 12, 13 14 3 10,11 10, 11 11 5 10.5 28 4.1 OS 10 IF control voltage for max gain for mln gain Gating pulse voltage Residual IF voltage Output current to earth Output current to V13 Input impedance at max gain at min gain Input voltage for V ] 1 = 3V p-p Video bandwidth AGC range Intermodulation 4 4 7 11,12 11, 12 11, 12 1 1 1 0 2.5 -2 52 13 40 5.1 6.2 1.1 2.5 0.15 0.05 1 1.2 4.5 0.2 15 50 1.8/2 1.9/0 100 7 58 55 15 V 52 mA Vcc: = 15V 6.1 V V i n = 0 V . R 1 4 = ° ° V V|„ = 0V,R14 = 0 1.8 V v i n = o v , r 1 4 = ~ V Vin = 0V,R14 = 0 kfi V v10 = v,, kS2/V V mA V 5 > 2V, 10dB after AGC (TBA440P) 10dB before AGC (TBA440N) 0.5 V 5V -5 V mV 5 mA - 1 mA kli/pF kO/pF uv Input 6 0 n via 3:5 transformer MHz dB dB Input 0.3 to 1.5V p-p // / // > "11 3V Vcc-ISV 1 -3GMKJ &t * 3MHI 142 ) 20 30 40 ATTENUATION (dB) SO Fig. 3 Noise figure v. attenuation (measured at video frequency} v„.3v Vcc-uv I ' JtMHi ftQ »MOA 10 JO 10 50 ATTENUATION (dBI Fig. 4 Control voltage v. attenuation TBA440N / TBA440P 0 -10 -M -10 -40 -SO ATTENUATION ( J_»7f »N 4=' H^t si ..Him® Vcc 1i 1) TBAUOP FOR PNP TUNER 1I 1 = 0 ITUNER MAX GAIN) IilOm* ITUNER: MIN CAIN) 2) TBA UON FOR NPN TUNER UIOmA ITUNER MAX GAIN) 1:0 (TUNER • MIN GAIN) PNP TUNER PREAMP NPH TUNER PREAMP Fig. 7 IF application with TBA440P or TBA440N for CCIR standard (values in brackets for U.S. standard) 143 .


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