TA8176F

TA8176SN / F TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA8176SN,TA8176F FM Front End (for digital tuning system) The TA8176SN, TA8176F are FM front end ICs which are designed for radio cassette players and music centers. They are suitable for digital tuning system applications. TA8176SN Features · Improved inter−modulation characteristics by double balanced type mixer circuit. · Built−in current share type AGC circuit for the RF amp. · Applicatable to double−tuning in radio frequency stage. · Built−in local oscillator buffer output circuit for digital tuning system applications. · Excellent overload characteristics for change oscillation frequency. · It is available to TV band. (up to 220MHz) · Built−in IF amp. : RO = 330Ω (typ.), Vout = 80mVrms (typ.) · Operating supply voltage range TA8176SN: VCC (opr) = 4~14V (Ta = 25°C) TA8176F: VCC (opr) = 4~8V (Ta = 25°C) TA8176F Weight SSIP12−P−1.78: 0.65g (typ.) SSOP16−P−225−1.00A: 0.14g (typ.) 1 2002-10-30 Block Diagram TA8176SN / F Explanation Of Terminals (terminal voltage shows the typ. value at Ta = 25°C, VCC = -5V, AGC off, FM mode, and non-signal test circuit) Pin No. (SN / F) 1 / 13 2 / 14 3 / 16 4/1 5/2 Symbol Contents AGC By-pass (RF in) RF in (by-pass) VCC RF out AGC on / off switch V1 / 13 = VCC → AGC off V1 / 13 = open → AGC on By-Pass terminal for RF amp circuit. It is necessary to connect external capacitance. (RF amp input terminal. antenna tuning circuit is connected) RF amp input termi...