BA4425F

Audio ICs FM / TV front end BA4425F The BA4425F is a monolithic IC designed for FM front end use. It consists of an RF amplifier circuit, mixer circuit, oscillation circuit, and IF buffer amplifier. FApplications FM radios Radio cassette players Home stereos Headphone stereos FFeatures 1) Uses double balance mixer to improve intermodulation characteristics. 2) Includes a clamp diode in the mixer output. 3) Local oscillation buffer on-chip for improved response to strong input. 4) The output impedance of the IF buffer is matched with the ceramic filter impedance at 330Ω. FAbsolute maximum ratings (Ta = 25_C) 5) Mixer input coupling capacitor included on-chip. 6) Includes a feedback capacitor for the local oscillation circuit. 7) Reception of VHF terrestrial TV channels is possible. 8) Compact SOP 8-pin package. FRecommended operating conditions (Ta = 25_C) 67 Audio ICs FBlock diagram BA4425F FPin descriptions FElectrical characteristics (unless otherwise noted, Ta = 25_C and VCC = 4.0V) 68 Audio ICs FMeasurement circuit BA4425F 69 Audio ICs FComponent data BA4425F 70 Audio ICs FElectrical characteristic curves BA4425F 71 Audio ICs BA4425F FExternal dimensions (Units: mm) 72 ...