Datasheet > M665-01-BD-BA-J

M665-01-BD-BA-J

更新时间： 2024-11-08 09:53:35

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艾迪悌 - IDT		/
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描述
SAW Oscillator

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M665-01-BD-BA-J 数据手册

M665

DUAL SAW, SELECTABLE FREQUENCY VCSO

GENERAL DESCRIPTION

PIN ASSIGNMENT (9 x 14mm SMT)

The M665 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

M665

noise and very low jitter. The M665-01 is available in

a range of center frequencies from 125 to 177 MHz.

The M665-02 provides 500 to 708 MHz. Guaranteed

minimum pull-range of ±120 ppm meets GbE

requirements. (It also fully satisfies ±50 ppm minimum

pull-range specification commonly required.) Industry-

standard Kvco (VCO Gain) provides full replacement

compatibility. The M665 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).

( Top Vi ew)

Figure 1: Pin Assignment

Sample of Available Output Frequencies

VCSO Center

Applications

Frequencies¹(MHz)

FEATURES

◆ Two integrated SAW devices and selectable output

155.5200, 167.3316

156.2500, 161.1328

622.0800, 669.3266

625.0000, 644.5313

SONET/SDH, SONET/SDH FEC

frequency; supports multi-rate optical interfaces

◆ M665-01 output frequencies from 125 to 177 MHz

M665-02 output frequencies from 500 to 708 MHz

(Specify center frequencies at time of order)

Gigabit Ethernet, GbE FEC

SONET/SDH, SONET/SDH FEC

Gigabit Ethernet, GbE FEC

◆ Industry-standard Kvco for full compatibility

◆ Low phase jitter 0.2ps rms typical for the M665-02

(50kHz to 80MHz)

Table 1: Sample of Available Output Frequencies

Note 1: Specify VCSO center frequencies at time of order

◆ Differential 3.3V LVPECL output

◆ Single 3.3V power supply

◆ Small 9 x 14mm SMT (surface mount) package

◆ Compliant to EC RoHS Directive: SMT (6 of 6); J-Lead (5 of 6)

BLOCK DIAGRAM

M665

SAW Delay Line

Phase

Shifter

VCSO

FOUT

VIN

nFOUT

SAW Delay Line

Phase

Shifter

VCSO

F_SEL

Figure 2: Block Diagram

M665 Datasheet Rev 0.8

Revised 30Nov2007

M665 Dual SAW, Selectable Frequency VCSO

Integtrated Device Technology, Inc. ● Communucations Modules ● www.idt.com ● tel (508) 852-5400

12 3 4 5 6

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