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PDF M660-02 Data sheet ( Hoja de datos )
| Número de pieza | M660-02 | |
| Descripción | DUAL SAW / SELECTABLE FREQUENCY VCSO | |
| Fabricantes | Integrated Circuit Systems | |
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Integrated
Circuit
Systems, Inc.
Preliminary Information
M660-02
DUAL SAW, SELECTABLE FREQUENCY VCSO
GENERAL DESCRIPTION
The M660-02 is a dual SAW, selectable frequency
VCSO frequency source for low-jitter clock
generation. An integrated SAW (surface
acoustic wave) delay line implements the
high-Q VCO (voltage controlled oscillator)
function, which results in low output phase
noise and very low jitter. The M660-02 is available in
a range of center frequencies from 500 to 700MHz.
Minimum pull-range is ±50 ppm (wider pull-range is
available). The M660-02 is well suited for phase-locked
loop implementations, clock and data recovery circuits,
and other timing applications in telecom and optical
fiber networking systems (e.g., OC-48, OC-192).
FEATURES
◆ Two integrated SAW devices
◆ Selectable output frequency
◆ Supports multi-rate optical interface requirements
◆ VCSO center frequencies from 500 to 700 MHz
(Specify center frequency at time of order)
◆ Low phase jitter 0.19ps rms typical (50kHz-80MHz)
◆ Low phase noise -70dBc/Hz @ 1kHz offset
◆ Differential 3.3V LVPECL output
◆ Single 3.3V power supply
◆ Small 9 x 14mm SMT (surface mount) package
PIN ASSIGNMENT (9 x 14mm SMT)
654
MM6606-002
(Top View)
1 23
Figure 1: Pin Assignment
Sample of Available Output Frequencies
VCSO Center Frequency1 (MHz)
Applications
622.0800
SONET/SDH
625.0000
Gigabit Ethernet
644.5313
Gigabit Ethernet FEC
669.3265
SONET/SDH FEC
Table 1: Sample of Available Output Frequencies
Note 1: Specify VCSO center frequency at time of order
BLOCK DIAGRAM
MM666600-02
SAW Delay Line
VIN
VCSO
Phase
Shifter
SAW Delay Line
FOUT
nFOUT
F_SEL
VCSO
Phase
Shifter
Figure 2: Block Diagram
M660-02 Datasheet Rev 3.0
Revised 10Apr2003
M660-02 Dual SAW, Selectable Frequency VCSO
Integrated Circuit Systems, Inc. ● Communications Modules ● www.icst.com ● tel (508) 852-5400
1 page | ||
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| PDF Descargar | [ Datasheet M660-02.PDF ] | |
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