Freescale Semiconductor, Inc.
Order Number: MC100ES6222/D
SEMICONDUCTOR TECHNICAL DATA
Rev 1, 11/2002
Low Voltage 1:15 Differential
ECL/PECL Clock Divider and
The Motorola MC100ES6222 is a bipolar monolithic differential clock
fanout buffer. Designed for most demanding clock distribution systems,
the MC100ES6222 supports various applications that require the
distribution of precisely aligned differential clock signals. Using SiGe
technology and a fully differential architecture, the device offers very low
skew outputs and superior digital signal characteristics. Target
applications for this clock driver is high performance clock distribution in
computing, networking and telecommunication systems.
ECL/PECL CLOCK DIVIDER
AND FANOUT DRIVER
• 15 differential ECL/PECL outputs (4 output banks)
• 2 selectable differential ECL/PECL inputs
• Selectable ÷1 or ÷2 frequency divider
• 130 ps maximum device skew
• Supports DC to 3 GHz input frequency
• Single 3.3V, -3.3V, 2.5V or -2.5V supply
• Standard 52 lead LQFP package with exposed pad for enhanced thermal
• Supports industrial temperature range
• Pin and function compatible to the MC100EP222
52–LEAD LQFP PACKAGE
The MC100ES6222 is designed for low skew clock distribution systems and supports clock frequencies up to 3 GHz. The
CLK0 and CLK1 inputs can be driven by ECL or PECL compatible signals. Each of the four output banks of two, three, four and
six differential clock output pairs can be independently configured to distribute the input frequency or ÷2 of the input frequency.
The FSELA, FSELB, FSELC, FSELD and CLK_SEL are asychronous control inputs. Any changes of the control inputs require a
MR pulse for resynchronization of the the ÷2 outputs. For the functionality of the MR control input, see Figure 5. , “Functional
Diagram,” on page 7.
In order to meet the tight skew specification of the device, both outputs of a differential output pair should be terminated, even if
only one output is used. In the case where not all ten outputs are used, the output pairs on the same package side as the parts
being used on that side should be terminated.
The MC100ES6222 can be operated from a single 3.3V or 2.5V supply. As most other ECL compatible devices, the
MC100ES6222 supports positive (PECL) and negative (ECL) supplies. The MC100ES6222 is pin and function compatible to the
© Motorola, Inc. 2002
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