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TDA5632 Datasheet(PDF) 7 Page - NXP Semiconductors |
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TDA5632 Datasheet(HTML) 7 Page - NXP Semiconductors |
7 / 20 page 1996 Aug 16 7 Philips Semiconductors Product specification 9 V VHF and UHF mixers/oscillators for TV and VCR cable tuners TDA5632; TDA5633 Notes 1. The RF frequency range is defined by the oscillator frequency range and the intermediate frequency. 2. The input level causing 10 kHz detuning at the LO output; fosc =fRF + 43.5 MHz. 3. Limits are related to the tank circuit used in Fig.10. Frequency bands may be adjusted by the choice of external components. Another UHF frequency range is available by modifying the tank circuit. The modification enables the following frequency range: a) RF frequencies from 363.5 to 803.5 MHz. b) Oscillator frequencies from 407 to 847 MHz. For this UHF range, L4 = 3 turns (diameter = 3.5 mm). 4. The frequency shift is defined as the change in oscillator frequency when the supply voltage varies from VP = 9 to 8.1 V or VP = 9 to 9.9 V. 5. The frequency drift is defined as the change in oscillator frequency when the ambient temperature varies from Tamb =25to0 oC or Tamb =25to50 oC. 6. Switch on drift is defined as the change in oscillator frequency between 5 s and 15 min after switch on. 7. SRF: spurious signal on LO output with respect to LO signal: a) RF voltage level = 1 V at fRF = 57.5 to 225 MHz. b) RF level = 2.5 dBm at fRF = 225 to 357.5 MHz. c) RF level = −10 dBm at fRF = 469.5 to 887.5 MHz. Band C mixer including IF amplifier fRF frequency range note 1 469.5 − 887.5 MHz Gv voltage gain fRF = 469.50 MHz; RL =75 Ω; see Fig.7 27 30 33 dB fRF = 887.5 MHz; RL =75 Ω; see Fig.7 27 30 33 dB NF noise figure (not corrected for image) fRF = 469.50 MHz; RL =75 Ω− 7.5 9.5 dB fRF = 887.5 MHz; RL =75 Ω− 9.5 11.5 dB Vo output voltage causing 1% cross modulation in channel fRF = 887.5 MHz; RL =75 Ω; see Fig.8 107 110 − dB µV Zi input impedance (Rs +Ls)Rs; fRF = 469.50 MHz − 30 −Ω Ls; fRF = 887.5 MHz − 12 − nH Vi input voltage causing 10 kHz pulling in channel RL =75 Ω; note 2 − 82 − dB µV Band C oscillator fosc frequency range note 3 513 − 931 MHz fshift frequency shift ∆VP = 10%; note 4 −− 500 kHz fdrift frequency drift ∆T=25 °C with compensation; note 5 −− 900 kHz 5 s to 15 min after switching on; note 6 −− 400 kHz LO output VO output voltage RL =50 Ω 83 91 100 dB µV SRF spurious signal on LO output with respect to LO output signal RL =50 Ω; note 7 −−14 −10 dB SHD LO signal harmonics with respect to LO signal RL =50 Ω− −11 −10 dB SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT |
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