特性
- Packaged in 16-pin DCG (150mil wide SOIC) – Pb-free, RoHS-compliant
- Highly accurate frequency generation
- Serially programmable: User determines the output frequency via a 3-wire interface
- Eliminates the need for custom quartz
- Input crystal frequency of 5MHz to 27MHz
- Output clock frequencies up to 200MHz
- Power down tri-state mode
- Very-low jitter
- Operating voltage: 3.3V or 5V
- 25mA drive capability at TTL levels
- Industrial temperature operating range (-40 °C to +85 °C)
描述
The 6V40277 is a small, versatile serially programmable clock source for Freescale systems. It can generate any frequency from 6MHz to 200MHz and has a second configurable output. The outputs can be reprogrammed on the fly and will lock to a new frequency in 10ms or less. Smooth transitions (in which the clock duty cycle remains near 50%) are guaranteed if the output divider is not changed. The device includes a PDTS pin which tri-states the output clocks and powers down the entire chip. The 6V40277 features a default clock output at start-up. This product is intended for clock generation. It has low output jitter (variation in the output period), but input to output skew and jitter are not defined nor guaranteed.