mc25r32m Centellax, mc25r32m Datasheet

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mc25r32m

Manufacturer Part Number
mc25r32m
Description
Clock Recovery Unit Cru Module
Manufacturer
Centellax
Datasheet
The MC25R32M is a Clock
Recovery Unit (CRU) using
Silicon Germanium (SiGe)
process technology. The module
accepts input data rates from
25.3 to 32.0 Gb/s with an input
sensitivity better than 50mVppk.
The data input is AC coupled
and terminated with a 50 ohm
resistor to minimize reflections.
The half-rate recovered clock is
AC-coupled at ECL compatible
levels.
The MC25R32M can be used to
extract low jitter clock for 100
GE applications with and without
FEC operating at transmission
speeds of 25.78125, 27.95, and
30.9375 Gb/s. Broadband test
systems will benefit from the low
power dissipation, precision con-
nectors and excellent signal
quality.
25.3 - 32.0 Gb/s Data Rates
High Input Sensitivity
Low Jitter Output Clock
Low Power Consumption
Single -3.3V Power Supply
Specifications subject to change without notice. Copyright © 2001-2009 Centellax, Inc. Printed in USA. 15 Jun 2009. smd-00034 rev B.
CENTELLAX
Clock Recovery Unit (CRU) Module
• Web: http://www.centellax.com/ • Email: sales@centellax.com • Tel: 866.522.6888 • Fax: 707.568.7647
Vee= -3.3V, Iee = 220mA, Zo = 50 Ω
Data Input
Reference Clock Input
Clock Output
Vee
Bit Rate
Amplitude
Frequency
Amplitude
Frequency
Amplitude
Jitter RMS
Jitter Pk-Pk
6.325
12.65
25.3
-3.6
300
50
50
-
-
CENTELLAX
-3.3
0.5
3
-
-
-
-
-
-
1400
1400
32.0
16.0
-3.0
600
8.0
0.6
6
mVpp
mVpp
mVpp
Gb/s
GHz
GHz
psec
psec
V

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mc25r32m Summary of contents

Page 1

... The data input is AC coupled and terminated with a 50 ohm resistor to minimize reflections. The half-rate recovered clock is AC-coupled at ECL compatible levels. The MC25R32M can be used to extract low jitter clock for 100 GE applications with and without FEC operating at transmission speeds of 25.78125, 27.95, and 30.9375 Gb/s. Broadband test ...

Page 2

... Storage Temperature • Web: http://www.centellax.com/ • Email: sales@centellax.com • Tel: 866.522.6888 • Fax: 707.568.7647 CENTELLAX Specifications subject to change without notice. Copyright © 2001-2009 Centellax, Inc. Printed in USA. 15 Jun 2009. smd-00034 rev B. 13.975 GHz Clock Output Locked to 2e15, 27.95 Gb/s data Total Current Consumption vs Power Supply Level -3 ...

Page 3

... Gb/s High 25.3 - 30.0 Gb/s • Web: http://www.centellax.com/ • Email: sales@centellax.com • Tel: 866.522.6888 • Fax: 707.568.7647 CENTELLAX Specifications subject to change without notice. Copyright © 2001-2009 Centellax, Inc. Printed in USA. 15 Jun 2009. smd-00034 rev Internal PLL Reference Selector Between Input Data and Reference Clock ...

Page 4

... For this example, the loop is locked if CKO is 13.975 GHz. 3. Once the loop is locked (i.e. trained), switch the LOCK pin to High, or 0V, to lock onto the data input. *The MC25R32M may also be trained using 1/8 or 1/16 of the data rate as the reference clock input; however, the VCO capture range will be reduced. ...

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