M2005-02
Micro Networks
An Integrated Circuit Systems Company
Preliminary Specifications
M2005-02
Frequency Translator
DESCRIPTION
The M2005-02 integrates a high performance Phase
Locked Loop (PLL) with a Voltage Controlled SAW
Oscillator (VCSO) to provide a low jitter Frequency
Synthesizer in a 9mm x 9mm surface mount
package.
The internal high “Q” SAW filter provides low jitter
signal performance and determines the maximum
output frequency of the VCSO. A programmable
output divider can divide the VCSO frequency by a
factor of 4 to achieve an output as low as 77.76MHz
with a 311.04MHz VCSO.
The input to the Frequency Synthesizer is provided
by selecting between one of two input reference
clocks. The maximum input frequency is 250 MHz.
FEATURES
Output Clock Frequency up to 700MHz
Differential LVPECL Outputs
Serial control of the input divider, the feedback
divider, and output divider is provided via the
configuration logic.
Internal Low-jitter SAW-based Oscillator
Intrinsic Jitter <1ps rms (12kHz - 20MHz)
Jitter Attenuation of Input Reference Clock
Dual Input MUX
An external loop filter sets the PLL bandwidth which
can be optimized to provide jitter attenuation of the
input reference clock.
A HOLD feature freezes the VCSO frequency so that
a stable output clock can be maintained when both
input reference clocks are lost.
Configurable Loop and Output Dividers
Tunable Loop Filter Response
Single 3.3V Supply
The bandwidth control, low phase noise, and HOLD
features make the M2005-02 ideal for use as a clock
jitter attenuator, frequency translator, and clock
frequency generator in OC-3 through OC-192
applications.
Small 9mm x 9mm SMT Package
HOLD Mode During Loss of Input
Reference Clock
APPLICATIONS
ABSOLUTE MAX RATINGS
Inputs, VI :
................................................. -0.5 to VCC+0.5V
SONET / SDH / 10GbE System
Synchronization
Output, VO : ................................................. -0.5 to VCC+0.5V
Supply Voltage, VCC : ......................................................... 4.6 V
Storage Temperature, TSTO :............................ -45°C to +100°C
Add / Drop Muxes, Access and Edge
Switches
Stresses beyond those listed under Absolute Maximum Ratings may cause
permanent damage to the device. These ratings are stress specifications
only. Functional operation of product at these conditions or any conditions
beyond those listed in the DC Characteristics or AC Characteristics is not
implied. Exposure to absolute maximum rating conditions for extended peri-
ods may affect product reliability.
Line Card System Clock Cleaner /
Translator
Optical Module Clock Cleaner / Translator
ISO 9001
Registered
Micro Networks
324 Clark Street
Worcester, MA 01606
tel: 508-852-5400
fax: 508-852-8456
www.micronetworks.com
1