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TDA5736T Arkusz danych(PDF) 10 Page - NXP Semiconductors |
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TDA5736T Arkusz danych(HTML) 10 Page - NXP Semiconductors |
10 / 28 page 1997 Feb 24 10 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 7. The frequency drift is defined as the change in oscillator frequency when the ambient temperature varies from Tamb =25to0 °C and from Tamb =25to50 °C. 8. Switch-on drift is defined as the change in oscillator frequency between 5 s and 15 mins after switch on. 9. With thermal compensation, the capacitors of the tank circuits have the following temperature coefficients: a) In band A: C1, C6 and C8 are N750. b) In band B: C4, C11, C12, C13 and C36 are N750. c) In band C: C5, C7, C9 and C10 are N750; C2 is N220 and C3 is NP0. 10. SRF: spurious signal on LO with respect to LO output signal: a) RF level = 120 dB µV at fRF < 180 MHz. b) RF level = 107.5 dB µV at fRF = 180 to 225 MHz. c) RF level = 97 dB µV at fRF = 225 to 860 MHz. Fig.4 Band A gain measurement. ZI (AIN) >> 50 Ω V i =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). 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 |
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