●Product Details
●The HMC856 is a wideband time delay device with a 5-bit digital control designed for timing compensation or clock skew management applications. The time delay provides nearly 100 ps (maximum) 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 HMC856 are current mode logic (CML) and terminated on chip with 50 Ω to the positive supply ground, GND, and can be ac or dc-coupled. The differential CML outputs are source terminated to 50 Ω and can also be ac or dccoupled. Connect outputs directly to a 50 Ω ground terminated system or drive devices with CML logic input. The control lines, B4 to B0, are differential CML inputs terminated with 600 Ω to the positive rail, which supports lower power control options. The HMC856 features an output level control pin, VR, that allows loss compensation or signal level optimization. The HMC856 operates from a single −3.3 V supply and is available in a 5 mm × 5 mm LCC package.
●Applications
● SONET OC-192
● High speed serial logic
● Clock and data recovery
● Broadband test and measurement equipment
● Frequency synthesis
● Matched timing
●### Features and Benefits
● Differential and single-ended operation
● Supports data rates up to 28 Gbps
● Fast rise/fall time: 20 ps/18 ps
● Low power consumption: 610 mW typical
● Programmable differential
● Output voltage swing: 500 mV p-p to 1350 mV p-p
● Single supply: −3.3 V
● 5 mm × 5 mm, 32-terminal ceramic leadless chip carrier (LCC) package: 25 mm2
