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M210x Series PECL/LVDS/CML Clock Oscillator – 3.3/2.5/1.8 Volt – 5x7/9x14 mm
Applications Note:
The MtronPTI M210x series of clock oscillators, featuring QiK ChipTM technology, provides for extremely low jitter of 0.30 ps RMS.
For applications requiring low jitter, frequencies from 150 MHz to 1.4 GHz are available. LVPECL, LVDS, or CML compatible
outputs, as well as operating voltage of 1.8 V, 2.5 V, and 3.3 V are also options on the M210x.
The M210x is available at a stability of ± 20 ppm, all-inclusive, over the industrial operating temperature range of -40°C to +85°C.
By providing this specification, the M210x will perform at a much superior level than SAW based oscillator designs (Figure 1). This
level of performance is achieved by utilizing a precision AT-cut crystal. An enable/disable function is also an available option on
the M210x. The internal 0.01 F by-pass capacitor also assures optimum noise suppression on the supply voltage pad.
The superior integrated jitter performance of 0.3 pS RMS makes the M210x suitable for 10 Gig-E, broadband networks, network
switches, SONET, SDH, SERDES, DWDM, FEC, WLAN, and OC-3 thru OC-192 systems. The M210x is available in a nine-pad,
5x7x1.9 mm, leadless, ceramic, surface mount package (see page 4) that is RoHS and 260°C reflow compatible. (No PCB traces
should be located directly under the 5x7 product). A six-J-lead, 9x14 mm, ceramic, surface mount package, that is RoHS and
260°C reflow compatible, is also available (see page 4). Figures 2 and 3 below show load termination conditions for LVPECL and
LVDS. The M210x oscillators offer a pin 1 tristate for backward compatibility to many of the existing products in the industry from
Vectron, Epson, and others.
For superior performance in a high frequency clock oscillator, the M210x is a logical choice for designers. The unique design
architecture allows the M210x fast turn around on engineering design samples, as well as production quantities in 2 weeks or less.
Figure 1. Frequency/Temperature Curves, M210x vs. SAW Based Oscillator Devices
Figure 2. 3.3V LVPECL Load Circuit
Figure 3. LVDS Load Circuit