F7 - ELECTRICAL  SPECIFICATIONS                                                             OPERATING VOLTAGE -------------------- 5.5 - 17 VOLTS DC                        OPERATING CURRENT (KFT-1) ------------------------ < 6mA                                          (KFT-2) ----------------------- < 11mA                        OPERATING TEMPERATURE ------------- -30 to +80 degrees C                        INPUT SENSITIVITY --------------------------- > 25mV RMS                        DECODER INPUT IMPEDANCE ---------------------- > 50KOhms                        FREQUENCY ACCURACY ---------------- +/- 0.2% of STANDARD                        DECODE BANDWIDTH --------------- Automatically optimised                        ENCODE OUTPUT IMPEDANCE -- Encoding --------- < 300 Ohms                                                -- Decoding -------- > 100K Ohms                        ENCODE OUTPUT LEVEL ------ Unloaded -------- > 200mV RMS                        CMOS INPUTS:   Input Leakage Current ----- +/- 1 uA max.                                       High-level voltage ----------- 3.5 V min.                                       Low-level voltage ------------ 1.5 V max.                        CMOS OUTPUTS:  Output-high voltage ---- 4.0 V @ - 2.2 mA                         (typical)                         ---- 3.5 V @ - 3.3 mA                                                           ---- 3.0 V @ - 4.0 mA                                       Output-low voltage  ---- 0.4 V @ + 2.8 mA                                                           ---- 0.8 V @ + 4.5 mA                                                                                                        The above specifications apply at 25 degrees Celsius                            ambient temperature.                                                                                                                                                                                                                