ICST M624 Voltage controlled saw oscillator Datasheet

Product Brief
Integrated
Circuit
Systems, Inc.
M624
VOLTAGE CONTROLLED SAW OSCILLATOR
VIN
11
GND
10
GND
GND
9
8
7
M624
6
GND
5
GND
4
RF_OUT
(Top View)
12
1
2
3
GND
VCC
GND
The M624 is a VCSO (Voltage Controlled SAW
Oscillator) frequency source specifically designed for
high-speed SONET/SDH applications for rates up to
OC-768. Its integrated SAW (surface acoustic wave)
delay line provides excellent phase noise performance
and spectral purity, while requiring a low supply voltage
(+3.3V). An extremely linear tuning range makes the
M624 especially suited for phase-locked loop
applications, which are extensively used in timing
circuits and clock and data recovery in fiber-linked data
systems. The SMT VCSO’s small size and minimal
power requirements make it ideal for the miniturization
applications that are emerging, without sacrificing
performance.
GND
PIN ASSIGNMENT (0.6 x 0.8 inch SMT)
GND
GENERAL DESCRIPTION
FEATURES
• VCSO center frequency from 500 to 625MHz
• Low phase noise -100dBc/Hz @ 1kHz offset
• Superior SAW jitter performance and aging;
•
•
•
•
jitter 0.015ps rms typical (12kHz-20MHz)
Excellent frequency stability and tuning linearity
Low power consumption (300 mW)
Single 3.3V power supply
Small 0.6 x 0.8 inch SMT (surface mount) package
BLOCK DIAGRAM
M624
SAW Delay Line
Ceramic Filter
VCSO
RF_OUT
Phase
Shifter
VIN
M624 PB Rev 2.2
Revised 16Apr2004
M624 Voltage Controlled SAW Oscillator
Integrated Circuit Systems, Inc.
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tel (508) 852-5400
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