HYPERLABS has developed a surface-mount, ultra-broadband balun covering 1 MHz to 18 GHz with exceptional phase and amplitude matching. The inverting and non-inverting outputs of the model HL9491 are amplitude matched within ±0.25 dB over the full operating band and phase matched within ±5 degrees of 180 degrees at 10 GHz. This performance makes the HL9491 the leader among broadband surface-mount baluns.
This new balun is compact, designed to fit within a board footprint of 1.1 in x 0.2 in. x 0.2 in. The HL9491 has an operating temperature range of −40°C to +85°C and will withstand an input power of +30 dBm.
Similar to other baluns in HYPERLABS’ ultra-broadband coaxial portfolio, the HL9491 design uses high frequency lossy transmission lines and lower band ferrite beads to provide flat frequency response. The proprietary launch design has a bandwidth well over 25 GHz - measured - which enables the coaxial balun to be implemented as a surface-mount component. The HL9491 is available on an evaluation board with a calibration standard, enabling the user to de-embed the PCB.
The balun is well-suited to drive a wide array of high frequency analog-to-digital converters (ADC). The small, narrow footprint supports multi-channel ADCs or other multi-lane systems that require differential drive.
Founded in 1992 and privately owned, HYPERLABS develops ultra-broadband components, including power splitters, matched pickoff tees and samplers, including harmonic mixers. The company was the first to develop and offer time-domain reflectometry (TDR) instruments, controlled impedance analyzers and signal path analyzers using USB for control and power.