TA8158F

TA8158F TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA8158F FM Front End IC The TA8158F is low operation voltage FM front end IC for the portable equipments which is suitable for the headphone stereo radios and radio cassette players. Features · · · · Wide supply voltage range: VCC = 1.6~6.0V (Ta = 25°C) Excellent supply voltage dependence of local oscillator : Oscillation stop VCC = 0.9V (typ.) Improved inter−modulation characteristics by double balanced type mixer circuit. Built−in clampping diode for the local oscillator output. Weight: 0.10g (typ.) Block Diagram 1 2002-10-30 TA8158F Explanation Of Terminal Pin No. 1 Symbol FM-RF IN (terminal voltage is DC voltage at Ta = 25°C, VCC = 5V, and no signal) Internal Circuit Terminal Voltage (V) 0.8 2 By pass 1.5 3 FM-RF OUT 5.0 4 MIX IN 1.5 5 6 GND MIX OUT — Cf, pin(4) 0 5.0 7 OSC MONITOR 4.3 8 OSC 5.0 9 10 VCC NC — — 5.0 — 2 2002-10-30 TA8158F Maximum Ratings (Ta = 25°C) Characteristic Supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC PD (Note) Rating 8 400 -25~75 -55~150 Unit V mW °C °C Topr Tstg (Note) Derated above Ta = 25°C in the proportion of 3.2mW / °C. Electrical Characteristics Unless Otherwise Specified (VCC = 3V, f = 83MHz, fm = 1kHz, ∆f = 22.5kHz dev, Ta = 25°C) Characteristic Supply current -3dB limiting sensitivity Quiescent sensitivity Conversion gain Local OSC voltage Pin(1) impedance Pin(3) impedance Parallel input resist...