LTC6903/LTC6904 e lecTrical characTerisTics The l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C. V+ = 2.7V to 5.5V, GND = 0V, unless otherwise noted.SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS ∆fi Initial Frequency Accuracy f = 1.039kHz, V+ = 3V, CLOAD = 5pF ±0.75 % ∆f Total Frequency Accuracy (Note 7) Single Output Active: Over All Settings, V+ = 2.7V, CLOAD = 5pF 0.5 1.1 % Over All Settings, V+ = 5.5V, CLOAD = 5pF 0.5 1.6 % LTC6903CMS8, LTC6904CMS8: Over All Settings, V+ = 2.7V, CLOAD = 5pF l 0.5 1.65 % Over All Settings, V+ = 5.5V, CLOAD = 5pF l 0.5 2 % LTC6903HMS8, LTC6903IMS8, LTC6904HMS8, LTC6904IMS8, LTC6904MPMS8: Over All Settings, V+ = 2.7V, CLOAD = 5pF l 0.5 1.9 % Over All Settings, V+ = 5.5V, CLOAD = 5pF l 0.5 2.2 % fMAX Maximum Operating Frequency 68 MHz fMIN Minimum Operating Frequency 1.039 kHz ∆f/∆T Frequency Drift Over Temperature 10 ppm/°C ∆f/∆V Frequency Drift Over Supply 0.05 %/V Long-Term Frequency Stability 300 ppm/√kHr Timing Jitter (See Graph) 1.039kHz to 8.5MHz 0.4 % 1.039kHz to 68MHz 1 % Duty Cycle 1.039kHz to 1MHz l 49 50 51 % 1.039kHz to 68MHz 50 % ROUT Output Resistance CLK, CLK Pins, V+ = 2.7V 45 Ω VOH High Level Output Voltage V+ = 5.5V, 4mA Load l 4.8 5.3 V V+ = 2.7V, 4mA Load l 2 2.3 V V+ = 5.5V, 1mA Load l 5.2 5.45 V V+ = 2.7V, 1mA Load l 2.3 2.55 V VOL Low Level Output Voltage V+ = 5.5V, 4mA Load l 0.15 0.3 V V+ = 2.7V, 4mA Load l 0.25 0.45 V V+ = 5.5V, 1mA Load l 0.05 0.15 V V+ = 2.7V, 1mA Load l 0.05 0.2 V tr Output Rise Time (10% - 90%) V+ = 5.5V, RLOAD = ∞, CLOAD = 5pF 1 ns V+ = 2.7V, RLOAD = ∞, CLOAD = 5pF 1 ns tf Output Fall Time (10% - 90%) V+ = 5.5V, RLOAD = ∞, CLOAD = 5pF 1 ns V+ = 2.7V, RLOAD = ∞, CLOAD = 5pF 1 ns power requireMenTs The l denotes the specifications which apply over the full operating temperaturerange, otherwise specifications are at TA = 25°C. V+ = 2.7V to 5.5V, GND = 0V, unless otherwise noted.SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS VS Supply Voltage Applied Between V+ and GND l 2.7 5.5 V IS, SHDN V+ Supply Current, Shutdown VS = 2.7V l 0.25 0.6 mA VS = 5.5V l 0.6 2.2 mA IS, DC V+ Supply Current, Single Output f = 68MHz, 5pF Load, V+ = 2.7V l 3.6 7 mA Enabled f < 1MHz, V+ = 2.7V l 1.7 3.1 mA f = 68MHz, 5pF Load, V+ = 5.5V l 7 15 mA f < 1MHz, V+ = 5.5V l 1.9 4.5 mA 69034fe 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Power Requirements Serial Port Electrical Characteristics Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagrams Theory of Operation Applications Information Package Description Revision History Typical Application Related Parts