Crystek Corporation (Fort Myers, FL) has launched the CCHD-957, a new Ultra-
Low Phase Noise HCMOS Clock Oscillator with standby mode, featuring an
extremely low close-in phase noise of -100 dBc/Hz @ 10Hz offset and a typical
noise floor of -170 dBc/Hz @ 100kHz offset. The CCHD-957 also features a
“Standby Function” – when placed in disable mode, the internal oscillator is
completely shut down and its output buffer is placed in Tri-State. This
family is housed in a 9x14mm SMT package and operates with a +3.3V power
supply consuming 15mA of current. Stability is rated at 20-50ppm (0°C to
+70°C) and ±25-50ppm (-40°C to +85°C). The CCHD-957 generates frequencies
between 10MHz and 50MHz. Its output driver is capable of driving ±24mA,
translating to a rise/fall time of ~3nsec Max at 20% to 80% Vcc with a 15pF
This week's Question: Fox Sports offered virtual-reality streams from last week's U.S. Open, a major golf championship in Oakmont, PA. Sports fans who owned the right devices could watch the golf event on the television while using VR for...
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