HMC856LC5

HMC856LC5 v01.0611 28 Gbps 5-BIT DIGITAL TIME DELAY WITH PROGRAMMABLE OUTPUT VOLTAGE Features Differential & Single-Ended Operation Supports Data Rates up to 28 Gbps Fast Rise and Fall Times: 20 / 18 ps Low Power Consumption: 610 mW typ. Programmable Differential Output Voltage Swing: 500 - 1350 mVp-p Single Supply: -3.3V 32 Lead Ceramic 5x5 mm SMT Package: 25 mm2 Typical Applications The HMC856LC5 is ideal for: • SONET OC-192 3 BROADBAND TIME DELAY - SMT • High Speed Serial Logic • Clock & Data Recovery • Broadband Test & Measurement Equipment • Frequency Synthesis • Matched Timing Functional Diagram General Description The HMC856LC5 is a wideband time delay with a 5-bit digital control designed for timing compensation or clock skew management applications. The time delay provides nearly 100 ps of delay range with 3 ps resolution and supports 28 Gbps data. The monotonic delay is compensated for stable operation over both power supply and temperature variation. All differential inputs to the HMC856LC5 are CML and terminated on-chip with 50 Ohms to the positive supply, GND, and may be AC or DC coupled. The differential CML outputs are source terminated to 50 Ohms and may also be AC or DC coupled. Outputs can be connected directly to a 50 Ohm ground terminated system or drive devices with CML logic input. The control lines B4:B0 ae differential CML inputs terminated with 600 Ohms to the positive rail, which supports lower power control options. The HMC856LC5 features an output level control pin, VR, which allows for loss compenstion or signal level optimization. The HMC856LC5 operates from a single -3.3 V supply and is available in ROHScompliant 5x5 mm SMT package. Electrical Specifications, TA = +25 °C, Vee = -3.3 V, VR = 0 V Parameter Power Supply Voltage Power Supply Current Maximum Data Rate Input Voltage Range, CML Input Differential Voltage Output Rise / Fall Time Random Jitter Jr Deterministic Jitter, Jd Input Return Loss Differential, 20% - 80% rms peak-to-peak, 215 -1 PRBS input [1] Frequency