1 Features

1• Superior Performance With Low Power:

– Low Noise Synthesizer (265 fs-rms Typical

Jitter) or Low Noise Jitter Cleaner (1.6 ps-rms

Typical Jitter)

– 0.5-W Typical Power Consumption

– High Channel-to-Channel Isolation and

Excellent PSRR

– Device Performance Customizable Through

Flexible 1.8-V, 2.5-V and 3.3-V Power

Supplies, Allowing Mixed Output Voltages

• Flexible Frequency Planning:

– 4x Integer Down-Divided Differential Clock

Outputs Supporting LVPECL-Like, CML, or

LVDS-Like Signaling

– 4x Fractional or Integer Divided Differential

Clock Outputs Supporting HCSL, LVDS-Like

Signaling, or Eight CMOS Outputs

– Fractional Output Divider Achieve 0 ppm to < 1

ppm Frequency Error and Eliminates Need for

Crystal Oscillators and Other Clock Generators

– Output Frequencies up to 800 MHz

• Two Differential Inputs, XTAL Support, Ability for

Smart Switching

• SPI, I2C, and Pin Programmable

• Professional User GUI for Quick Design

Turnaround

• 7 × 7 mm 48-VQFN package (RGZ)

• –40°C to 85°C Temperature Range

2 Applications

• Base Band Clocking (Wireless Infrastructure)

• Networking and Data Communications

• Micro and Pico Base Stations

• Keystone C66x Multicore DSP Clocking

• Storage Server, Portable Test Equipment

• Medical Imaging, High End A/V

3 Description

The CDCM6208 is a highly versatile, low jitter low

power frequency synthesizer which 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,

Small Cells, wireline data communication, computing,

low power medical imaging and portable test and

measurement applications. The CDCM6208 also

features an innovative fractional divider architecture

for four of its outputs that can generate any frequency

with better than 1ppm frequency accuracy. The

CDCM6208 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.