High-performance frequency control targets HD audio

Crystek has launched a new ultra-low phase noise HCMOS clock oscillator which boasts an extremely low close-in phase noise of -100dBc/Hz at 10Hz offset and a typical noise floor of -170dBc/Hz at 100kHz offset. This makes the CCHD-957 ideal for applications such as: digital-to-analog converters (DACs), analog-to-digital converters (ADCs), digital audio broadcasting (DAB) and professional CD audio equipment.

The device 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. Housed in a 9.0 by 14mm SMT package, the CCHD-957 operates with a +3.3V power supply consuming 15mA of current. Stability is rated at 20 to 50ppm between zero and 70°C and ±25 to 50ppm between -40 and 85°C.

Products in this family are capable of generating  frequencies between 10 and 50MHz and the output driver is capable of driving ±24mA.