Datenblatt-Suchmaschine für elektronische Bauteile |
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TDA5630M Datenblatt(PDF) 10 Page - NXP Semiconductors |
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TDA5630M Datenblatt(HTML) 10 Page - NXP Semiconductors |
10 / 28 page 1996 Mar 21 10 Philips Semiconductors Product specification 9 V VHF, hyperband and UHF mixer/oscillator for TV and VCR 3-band tuners TDA5630; TDA5631 Fig.4 Gain measurement in band A. Zin (AIN) >> 50 Ω => Vi =2 × Vmeas. Vi =Vmeas + 6 dB. Vo =V’meas + 15.4 dB (transformer ratio N1/N2 = 5 and transformer loss). Gv = 20 log (Vo/Vi) = 20 log (V’meas/Vmeas) + 9.4 dB. handbook, full pagewidth MGD264 signal source V V D.U.T. AIN GND IF out IF out e 50 Ω 50 Ω 50 Ω V o 2 x 5 turns 2 turns i V meas meas V' RMS voltmeter spectrum analyzer TR N1/N2 = 5 Fig.5 Input circuit for optimum noise figure in band A. (a) For fRF = 50 MHz: mixer A frequency response measured = 57 MHz, loss = 0 dB image suppression = 16 dB C1 = 9 pF C2 =15pF L1 = 7 turns (diam. = 5.5 mm, wire diam. = 0.5 mm) l1 = semi rigid cable (RIM): 5 cm long (semi rigid cable (RIM); 33 dB/100 m; 50 Ω; 96 pF/m). (b) For fRF = 180 MHz: mixer A frequency response measured = 150.3 MHz, loss = 1.3 dB image suppression = 13 dB C3 = 5 pF C4 =25pF l2 = semi rigid cable (RIM): 30 cm long l3 = semi rigid cable (RIM): 5 cm long (semi rigid cable (RIM); 33 dB/100 m; 50 Ω; 96 pF/m). handbook, full pagewidth MBE286 - 1 L1 C2 C1 PCB plug plug BNC BNC RIM-RIM I1 C4 C3 PCB RIM-RIM I3 I2 (a) (b) |
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