LTC6957-1/LTC6957-2/ LTC6957-3/LTC6957-4 ELECTRICAL CHARACTERISTICS LTC6957-1The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. V+ = 3.3V,SD1 = SD2 = 0.4V, FILTA = FILTB = 0.4V, RLOAD = 50Ω connected to 1.3V, unless otherwise specified. All voltages are with respect to ground.SYMBOL PARAMETERCONDITIONSMINTYPMAXUNITSDigital Logic Inputs VIH High Level SD or FILT Input Voltage l V+ – 0.4 V VIL Low Level SD or FILT Input Voltage l 0.4 V IIN_DIG Input Current SD or FILT Pins l 0.1 ±10 µA Additive Phase Noise and Jitter fIN = 300MHz Sine Wave, 7dBm (FILTA = L, FILTB = L) at 10Hz Offset –130 dBc/Hz at 100Hz Offset –140 dBc/Hz at 1kHz Offset –150 dBc/Hz at 10kHz Offset –157 dBc/Hz at 100kHz Offset –157.5 dBc/Hz >1MHz Offset –157.5 dBc/Hz Jitter (10Hz to 150MHz) 123 fsRMS Jitter (12kHz to 20MHz) 45 fsRMS fIN = 122.88MHz Sine Wave, 0dBm (FILTA = H, FILTB = L) at 10Hz Offset –137 dBc/Hz at 100Hz Offset –146 dBc/Hz at 1kHz Offset –154.6 dBc/Hz at 10kHz Offset –157 dBc/Hz at 100kHz Offset –157.2 dBc/Hz >1MHz Offset –157.2 dBc/Hz Jitter (10Hz to 61.44MHz) 200 fsRMS Jitter (12kHz to 20MHz) 114 fsRMS fIN = 100MHz Sine Wave, 10dBm (FILTA = L, FILTB = L) at 10Hz Offset –138 dBc/Hz at 100Hz Offset –148.1 dBc/Hz at 1kHz Offset –156.8 dBc/Hz at 10kHz Offset –160.6 dBc/Hz at 100kHz Offset –161 dBc/Hz >1MHz Offset –161 dBc/Hz Jitter (10Hz to 50MHz) 142 fsRMS Jitter (12kHz to 20MHz) 90 fsRMS 6957fb For more information www.linear.com/LTC6957-1 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Timing Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
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