CDCM6208V1
TI
14+
QFN48
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DESCRIPTION CONTINUED
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 CDCM6208 is
packaged in a small 48-pin 7mm x 7mm QFN package.
Additional list of FEATURES
Supply Voltage: The CDCM6208 supply is internally regulated. Therefore each core and I/O supply can be
mixed and matched in any order according to the applICation needs. The device jitter performance is independent
of supply voltage.
Frequency Range: The PLL includes dual reference inputs with input multiplexer, charge pump, loop filter, and
VCO that operates from 2.39 GHz to 2.55 GHz (CDCM6208V1) and 2.94 GHz to 3.13 GHz (CDCM6208V2).
Reference inputs: The primary and secondary reference inputs support differential and single ended signals
from 8 kHz to 250 MHz. The secondary reference input also supports crystals from 10 MHz to 50 MHz. A 4-bit
reference divider available on the primary reference input. The input mux between the two references supports
simply switching or can be configured as Smart MUX and supports glitchless input switching.
Divider and Prescaler: In addition to the 4-bit input divider of the primary reference a 14-b input divider at the
output of input MUX and a cascaded 8-b and 10-b continuous feedback dividers are available. Two independent
prescaler dividers offer divide by /4, /5 and /6 options of the VCO frequency of which any combination can then
be chosen for a bank of 4 outputs (2 with fractional dividers and 2 that share an integer divider) through an
output MUX. A total of 2 output MUXes are available.
Phase Frequency Detector and Charge Pump: The PFD input frequency can range from 8 kHz to 100 MHz.
The charge pump gain is programmable and the loop filter consists of internal + partially external passive
components and supports bandwidths from a few Hz up to 400kHz.
Phase Noise: The Phase Noise performance of the device can be summarized to:
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