CTS Corporation has announced a new family of phase-lock-loop (PLL) modules.
With two initial members, models VFJA1490 and VFJA1491 are both supplied in miniature surface-mount packages measuring just 9 x 14 mm. The VFJA1490 models work with LVPECL, LVCMOS, and sinewave inputs from 10 to 200 MHz and provide LVPECL outputs at frequencies to 1 GHz with extremely low jitter of 65 fs measured 12 kHz to 20 MHz from the carrier. The phase noise is also low, at just -145 dBc/Hz offset 100 kHz from a 500-MHz carrier.
The VFJA1491 models operate with LVPECL, LVCMOS, and sinewave inputs from 10 to 200 MHz and deliver LVPECL or LVCMOS outputs at frequencies to 200 MHz. The jitter is also low, just 90 fs offset 12 kHz to 20 MHz from the carrier, while phase noise is only -155 dBc/Hz offset 100 kHz from a 156.25-MHz carrier.
The models VFJA1490 and VFJA1491 are ideal to use for applications using high-speed data and video transmissions with higher transmission bit rates. Systems operating at high transmission bit rates are sensitive to accumulated noise (internal to systems or external from input sources)-jitter tolerance and jitter generation. Such systems require low-noise internal clocks and low-noise PLL circuits. While system clocks are designed to operate at low frequencies, data modulation is set to operate at high frequencies so that more data and video could be packed at each cycle.
