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TLC2943 Datasheet(PDF) 10 Page - Texas Instruments |
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TLC2943 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 27 page TLC2943 HIGH-PERFORMANCE DUAL PHASE-LOCKED BUILDING BLOCK SLAS249 – NOVEMBER 1999 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range, VDD = 5 V (unless otherwise noted) (continued) VCO section PARAMETER TEST CONDITIONS MIN NOM MAX UNIT VOH High-level output voltage IOH = – 2 mA 4.5 V VOL Low-level output voltage IOL = 2 mA 0.5 V V(TH+) Positive input threshold voltage 1.5 2.5 3.5 V II Input current VI = VDD or GND ±1 µA Z(VCOIN) VCOIN input impedance VCOIN = 1/2VDD 10 M Ω IDD(INH) VCO supply current (inhibit) (for one chip) See Note 5 0.01 1 µA IDD(VCO) VCO supply current (for one chip) See Note 6 14 35 mA NOTES: 5. The current into VCO VDD and LOGIC VDD when VCO INHIBIT = VDD and PFD INHIBIT is high. 6. The current into VCO VDD and LOGIC VDD when VCO IN = 1/2 VDD , RBIAS = 2.4 kΩ, VCO INHIBIT = ground, and PFD INHIBIT is high. PFD section PARAMETER TEST CONDITIONS MIN NOM MAX UNIT VOH High-level output voltage IOH = – 2 mA 4.5 V VOL Low-level output voltage IOL = 2 mA 0.2 V IOZ High-impedance state output current PFD INHIBIT = high, VO = VDD or GND ±1 µA VIH High-level input voltage at FIN–A, FIN–B 3.5 V VIL Low-level input voltage at FIN–A, FIN–B 1.5 V V(TH+) Positive input threshold voltage at PFD INHIBIT 1.5 2.5 3.5 V CI Input capacitance at FIN–A, FIN–B 7 pF ZI Input impedance at FIN–A, FIN–B 10 M Ω IDD(PFD) PFD supply current See Note 9 2.6 8 mA NOTE 9: The current into LOGIC VDD when FIN–A and FIN–B = 50 MHz (V I(PP) = 5 V, rectangular wave), PFD INHIBIT = GND, PFD OUT open, and VCO OUT is inhibited. |
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