HMC679LC3C

HMC679LC3C v05.1010 26 GHz, T FLIP-FLOP w/ RESET & PROGRAMMABLE OUTPUT VOLTAGE Typical Applications The HMC679LC3C is ideal for: • Serial Data Transmission up to 26 Gbps Features Supports Clock Frequencies up to 26 GHz Differential or Single-Ended Operation Fast Rise and Fall Times: 18 / 17 ps Low Power Consumption: 270 mW typ. Programmable Differential Output Voltage Swing: 600 - 1100 mVp-p Propagation Delay: 95 ps Single Supply: -3.3 V 16 Lead Ceramic 3 x 3 mm SMT Package: 9 mm2 3 HIGH SPEED LOGIC - SMT • High Speed Frequency Divider (up to 26 GHz) • Broadband Test & Measurement • RF ATE Applications Functional Diagram General Description The HMC679LC3C is a T Flip-Flop w/Reset designed to support clock frequencies as high as 26 GHz. During normal operation, with the reset pin not asserted, the output toggles from its prior state on the positive edge of the clock. This results in a divide-bytwo function of the clock input. Asserting the reset pin forces the Q output low regardless of the clock edge state (asynchronous reset assertion). Reversing the clock inputs allows for negative-edge triggered applications. All differential inputs to the HMC679LC3C are CML and terminated on-chip with 50 Ohms to the positive supply, GND, and may be DC or AC coupled. Outputs can be connected directly to a 50 Ohm ground-terminated system or drive devices with CML logic input. The HMC679LC3C also features an ouput level control pin, VR, which allows for loss compensation or signal level optimization. The HMC679LC3C operates from a single -3.3 V supply and is available in ROHS-compliant 3x3 mm SMT package. Electrical Specifi cations, TA = +25 ºC, Vee = -3.3 V, VR = 0 V Parameter Power Supply Voltage Power Supply Current Maximum Clock Rate Input Voltage Range Input Differential Range Input Return Loss Output Amplitude Differential, peak-to-peak Output High Voltage Output Low Voltage 1100 -10 -560 mVp-p mV mV Frequency