Integrated Circuit Systems, Inc.
Preliminary Information
M908-01
VCSO BASED GBE CLOCK GENERATOR
PIN ASSIGNMENT (9 x 9 mm SMT)
XTAL_1 / REF_IN GND nFOUT5 FOUT5 nFOUT4 FOUT4 nFOUT3 FOUT3 VCC XTAL_2 FOUT6 nFOUT6 FOUT7 nFOUT7 VCC DNC DNC DNC 27 26 25 24 23 22 21 20 19
GENERAL DESCRIPTION
The M908-01 is a PLL (Phase Locked Loop) based clock generator that uses an internal VCSO (
Voltage Controlled SAW Oscillator) to produce a very low jitter output clock.
It is ideal for Gigabit Ethernet.
An output clock frequency of 156.
25MHz (with the M908-01-156.
2500) is provided from eight LVPECL clock output pairs.
The accuracy of the output frequency is assured by the internal PLL that phase-locks the in...