The CDCM6208V2G is a highly versatile, low jitter, low-power frequency synthesizer that
can generate eight low jitter clock outputs, selectable between LVPECL-like high-swing CML,
normal-swing CML, LVDS-like low-power CML, HCSL, or LVCMOS, from one of two inputs that can feature
a low frequency crystal or CML, LVPECL, LVDS, or LVCMOS signals for a variety of wireless
infrastructure baseband, wireline data communication, computing, low power medical imaging and
portable test and measurement applications. The CDCM6208V2G also features an innovative
fractional divider architecture for four of its
outputs that can generate any frequency with better than 1ppm frequency accuracy. The CDCM6208V2G
can be easily configured through I2C or SPI programming interface and in
the absence of serial interface, pin mode is also available that can set the device in 1 of 32
distinct pre-programmed configurations using control pins.
In synthesizer mode, the overall output jitter
performance is less than 0.5 ps-rms (10 k 20 MHz) or 20 ps-pp (unbound) on output using integer
dividers and is between 50 to 220 ps-pp (10 k 40 MHz) on outputs using fractional dividers
depending on the prescaler output frequency.
In jitter cleaner mode, the overall output jitter
is less than 2.1 ps-rms (10 k 20 MHz) or 40 ps-pp on output using integer dividers and is less
than 70 ps to 240 ps-pp on outputs using fractional dividers. The CDCM6208V2G is packaged in a
small 48-pin 7 mm × 7 mm QFN package.
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