Hittite Press Release - November 4, 2011
Hittite's New Time-Delay/Phase Shifter Delivers 500° over 8-23 GHz
-- Ideal for Fiber Optic Clock & LO Synchronization Applications
Chelmsford, MA, 11/4/2011 - Hittite Microwave Corporation, the world class supplier of complete MMIC based
solutions for communication & military markets announces the release of the
HMC877LC3 8 to 23 GHz Time Delay/Phase Shifter. The
HMC877LC3 is ideal for clock chain and skew adjustment in 10G-RZ, 40G/100G RZ-DQPSK fiber optic applications.
HMC877LC3 is the first Time Delay/Phase Shifter product in the market to provide up to 1.4 UI (500°)
continuously adjustable delay over a wide 8 to 23 GHz frequency range, while maintaining a constant differential
output voltage. The device accepts either single-ended or differential input signals, while providing a 500 to 900
mVp-p programmable differential output swing.
HMC877LC3 provides a time delay/phase shift which is linearly monotonic with respect to the differential delay
control voltage, over a ±0.6V tuning range. On chip compensation circuitry ensures an extremely stable
programmable time delay over both frequency and temperature. A high delay control modulation bandwidth (3 dB
rolloff point) of 2.5 GHz combined with single +3.3V operation also make the
HMC877LC3 ideal for phase modulation in military & space, test & measurement and broadband applications.
HMC877LC3 complements many of Hittite’s previously released limiting amplifiers, modulator drivers and high
speed logic products to provide a complete solution set for fiber optic and test equipment applications. The
HMC877LC3 is housed in a ceramic 3 x 3 mm SMT package (RoHS compliant), and is fully specified for operation
from -40 °C to +85 °C.
Samples and evaluation PC boards for all SMT packaged products are available from
stock and can be ordered via the company’s e-commerce site or via direct purchase order. Released data sheets are
available on-line at
About Hittite Microwave
Hittite Microwave Corporation is an innovative designer and manufacturer of high performance integrated
circuits, or ICs, modules, subsystems and instrumentation for technically demanding digital, RF, microwave and
millimeterwave applications covering DC to 110 GHz. The Company's standard and custom products apply analog,
digital and mixed-signal semiconductor technologies, which are used in a wide variety of wireless / wired
communication and sensor applications for Automotive, Broadband, Cellular Infrastructure, Fiber Optics &
Networking, Microwave & Millimeterwave Communications, Military, Test & Measurement, and Space markets. The
Company is headquartered in Chelmsford, Massachusetts.
Hittite Microwave Corporation
20 Alpha Road
Chelmsford, MA 01824