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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC6946 датащи(PDF) 4 Page - Linear Technology |
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LTC6946 датащи(HTML) 4 Page - Linear Technology |
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4 / 30 page  LTC6946 4 6946fa ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TC = 25°C. VREF+ = VREF0+ = VD+ = VRF+ = 3.3V, VCP+ = VVCO+ = 5V unless otherwise specified (Note 2). All voltages are with respect to GND. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Output Current vs Output Voltage Sensitivity (Note 5) l 0.1 0.5 %/V Output Current vs Temperature VCP = VCP+/2 l 170 ppm/°C Output Hi-Z Leakage Current ICP = 700μA, CPCLO = CPCHI = 0 (Note 5) ICP = 11.2mA, CPCLO = CPCHI = 0 (Note 5) 0.5 5 nA nA VCLMP(LO) Low Clamp Voltage CPCLO = 1 0.84 V VCLMP(HI) High Clamp Voltage CPCHI = 1, Referred to VCP+ –0.96 V VMID Mid-Supply Output Bias Ratio Referred to (VCP+ – GND) 0.48 V/V Reference (R) Divider R Divide Range All Integers Included l 1 1023 counts VCO (N) Divider N Divide Range All Integers Included l 32 65535 counts Digital Pin Specifications VIH High Level Input Voltage MUTE, CS, SDI, SCLK l 1.55 V VIL Low Level Input Voltage MUTE, CS, SDI, SCLK l 0.8 V VIHYS Input Voltage Hysteresis MUTE, CS, SDI, SCLK 250 mV Input Current MUTE, CS, SDI, SCLK l ±1 μA IOH High Level Output Current SDO and STAT, VOH = VD+ – 400mV l 1.4 2.3 mA IOL Low Level Output Current SDO and STAT, VOL = 400mV l 1.8 2.6 mA SDO Hi-Z Current l ±1 μA Digital Timing Specifications (See Figures 7 and 8) tCKH SCLK High Time l 25 ns tCKL SCLK Low Time l 25 ns tCSS CS Setup Time l 10 ns tCSH CS High Time l 10 ns tCS SDI to SCLK Setup Time l 6ns tCH SDI to SCLK Hold Time l 6ns tDO SCLK to SDO Time To VIH/VIL/Hi-Z with 30pF Load l 16 ns Power Supply Voltages VREF+ Supply Range l 3.15 3.3 3.45 V VREFO+ Supply Range l 3.15 3.3 3.45 V VD+ Supply Range l 3.15 3.3 3.45 V VRF+ Supply Range l 3.15 3.3 3.45 V VVCO+ Supply Range l 4.75 5.0 5.25 V VCP+ Supply Range l 4.0 5.25 V Power Supply Currents IDD VD+ Supply Current Digital Inputs at Supply Levels l 250 μA ICC(5V) Sum VCP+, VVCO+ Supply Currents ICP = 11.2mA ICP = 1.0mA PDALL = 1 l l l 49 27 405 61 37 660 mA mA μA ICC(REFO) VREFO+ Supply Currents REFO Enabled, RZ = ∞ l 7.8 9.0 mA |
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