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BA7631F Arkusz danych(PDF) 5 Page - Rohm |
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BA7631F Arkusz danych(HTML) 5 Page - Rohm |
5 / 7 page 5 Multimedia ICs BA7631 / BA7631F •Electrical characteristics (unless otherwise noted, Ta = 25°C and VCC= 12V) Parameter Symbol Min. Typ. Max. Unit VCC 4.5 12.0 13.0 V — ICC —— 14.9 24.0 mA Vom 3.1 3.6 — Vrms GV – 0.5 0 0.5 dB THD — 0.005 0.1 % CTM —– 75 – 60 dB VMin. — 20.0 40.0 µVrms VTH 1.0 2.0 3.0 V — ZIN 48.5 65 80.5 Conditions k Ω — f = 1MHz, THD = 0.5% f = 1kHz, VIN = 3.0dBm f = 1kHz, VIN = 3.0dBm f = 10kHz, VIN = 3.0dBm 30kHz LPF, Rg = 2.2k Ω Not designed for radiation resistance. Recommended operating voltage Circuit current Maximum output level Voltage gain Total harmonic distortion Interchannel crosstalk Input conversion noise voltage CTL switch level Input impedance •Circuit operation The BA7631 and BA7631F make it easy to construct a decoder for the scrambled pay channels. They have been designed specifically for audio signal decoding. As shown in the application examples in Figs. 1 and 2, there are inputs for TV, VCR, decoder, and AUX, to cover a wide range of applications. When the AUX input is not used, by setting CTL5 to “L”, the system construction becomes the same as that of the BA7630S, and the BA7630S switching logic can be used as is. •Application example 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 BF BF BF 1 2 3 4 SW2 SW1 1 2 3 4 5 1 2 SW3 22 µF 22 µF 22 µF 22 µF 22 µF 22 µF 47 µ 22 µF from VCC To VTR IN CTL4 for SW3 from EXT OUT from VTR OUT from VTR TUNER OUT CTL1 for SW1 To DECODER IN CTL5 for SW2 CTL3 for SW2 To TV IN CTL2 for SW1 from TV OUT DECODER OUT Fig.1 + + + + + + + + |
Podobny numer części - BA7631F |
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Podobny opis - BA7631F |
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