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TDA7513T Datasheet(PDF) 6 Page - STMicroelectronics |
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TDA7513T Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 59 page TDA7513T 6/59 Table 6. AGC (wide AGC input connected to RFT primary through 10pF and 1K Ω) Table 7. IF Amplifier 1 (Input at FMIFAMP1IN, fc = 10.7MHz, no mod) (Output at FMIFAMP1OUT loaded with 330 Ω) (antenna level = FMIFAMP1IN – 31dB) Table 8. IF Amplifier 2 (Input at FMIFAMP2IN, fc = 10.7MHz, no mod) (Output at FMIFAMP2OUT loaded with 330 Ω) (antenna level = FMIFAMP2IN – 45dB) Gain MUST BE SET to 14dB for ISS operation. Symbol Parameter Test Condition Min Typ Max Unit WAGCsp Wide AGC starting point VRFTprimary @ I(FMAGCOUT) = 5 µA 84 dB µV WAGCRin FMWAGCIN input resistance 125 Ω NAGCsp Narrow AGC starting point (max sensitivity) VRFTprimary @ I(FMAGCOUT) = 5 µA; Keyed AGC OFF 95 dB µV KNAGCsp Keyed narrow AGC starting point (min sensitivity) VRFTprimary @ I(FMAGCOUT) = 5 µA; Keyed AGC ON; V(SMETERTC)<0.9V 109 dB µV NAGCRin FMNAGCIN input resistance 10 K Ω KAGCTH high Smeter for Keyed narrow AGC maximum sensitivity minimum programming V(SMETERTC) @ narrow AGC starting point = NAGCsp 0.9 V maximum programming 2.5 V KAGCTH low Smeter for Keyed narrow AGC minimum sensitivity minimum programming V(SMETERTC) @ narrow AGC starting point = KNAGCsp 1.6 V maximum programming 3.2 V Iout min AGC OFF 0.1 µA max AGC ON 8 mA Vout min AGC ON 0.1 0.5 V max AGC OFF Vcc- 0.5 V AGCVRout FMAGCVOUT output resistance 100 K Ω Symbol Parameter Test Condition Min Typ Max Unit GGain 18 dB IIP3 3rd order intercept point referred to FMIFAMP1IN 126 dB µV Rin input resistance (single-ended) FMIFAMP1IN w.r.t. gnd 330 Ω Rout output resistance 330 Ω Symbol Parameter Test Condition Min Typ Max Unit G minimum gain programmable gain 6 dB 8dB 10 dB maximum gain 14 dB IIP3 Input 3rd order intercept point referred to FMIFAMP2IN, G = 8dB 134 dB µV |
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