M685-02-AO-AB datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Passive components> oscillator> M685-02-AO-AB

M685-02-AO-AB: DescriptionSAW Oscillator, 500MHz Min, 708MHz Max, 614.4MHz Nom; CategoryPassive components oscillator; File Size115KB，7 Pages; ManufacturerIDT (Integrated Device Technology)

Download Datasheet Parametric View All

M685-02-AO-AB Overview

SAW Oscillator, 500MHz Min, 708MHz Max, 614.4MHz Nom

M685-02-AO-AB Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	IDT (Integrated Device Technology)
Reach Compliance Code	unknown

Preview

Download Datasheet

View All

Preliminary Information

M685

FOUT

GND

nFOU

UAL

SAW, S

ELECTABLE

REQUENCY

VCSO

ENERAL

ESCRIPTION

The M685 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 M685-01 is available in

a range of center frequencies from 125 to 177 MHz.

The M685-02 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 M685 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).

SSIGNMENT

(5 x 7.5mm SMT)

VCC

M685

M680

(Top View)

VIN

Figure 1: Pin Assignment

Sample of Available Output Frequencies

VCSO Center

Frequencies

(MHz)

155.5200, 167.3316

156.2500, 161.1328

622.0800, 669.3266

625.0000, 644.5313

Applications

SONET/SDH, SONET/SDH FEC

Gigabit Ethernet, GbE FEC

SONET/SDH, SONET/SDH FEC

Gigabit Ethernet, GbE FEC

EATURES

◆

Two integrated SAW devices and selectable output

frequency; supports multi-rate optical interfaces

◆

M685-01 output frequencies from 125 to 177 MHz

M685-02 output frequencies from 500 to 708 MHz

(Specify center frequencies at time of order)

◆

Industry-standard Kvco for full compatibility

◆

Low phase jitter 0.2ps rms typical for the M685-02

(50kHz to 80MHz)

◆

Differential 3.3V LVPECL output

◆

Single 3.3V power supply

◆

Small 5 x 7.5mm SMT (surface mount) package

◆

Pb-free / Compliant to EC RoHS Directive

Table 1: Sample of Available Output Frequencies

Note 1: Specify VCSO center frequencies at time of order

LOCK

IAGRAM

M685

SAW Delay Line

VCSO

Phase

Shifter

F_SEL

VIN

SAW Delay Line

FOUT

nFOUT

VCSO

Phase

Shifter

F_SEL

Figure 2: Block Diagram

M685 Datasheet Rev 0.7

M685 Dual SAW, Selectable Frequency VCSO

I n t e g r a t e d D e v i c e Te c h n o l o g y, I n c .

●

C o m m u n i c a t i o n M o d u l e s

●

w w w. i d t . c o m

●

t e l ( 5 0 8 ) 8 5 2 - 5 4 0 0

Revised 29Jul2009

Recommended Resources

Bourns precision sensor series, do you know it?

Series switching power supply circuit composed of CW3524 01

Use 1.2V battery as power inverter power supply circuit diagram

Excitation circuit composed of PMM8713 (1)

Small two-cell battery booster MAX856 circuit diagram

Frequency multiplier counting circuit

DLP Dynamic Floor Projection Technology for Automotive Exterior Lighting: [i=s]This post was last edited by alan000345 on 2020-7-20 22:00[/i]Introduction Dynamic floor projection technology, capable of displaying any pattern within the same module, is reshaping consumers’ p...; alan000345 ADI Reference Circuit

16 PCB welding defects! What are their hazards?: The following is a detailed explanation of common welding defects, appearance characteristics, hazards, and cause analysis.1. Cold soldering1. Appearance characteristicsThere is an obvious black bound...; 中信华 PCB Design

EEWORLD University ---- PCB Design Video - Learn PADS PCB Design in 1 Day: PCB Design Video - Learn PADS PCB Design in 1 Day : https://training.eeworld.com.cn/course/5385This course is suitable for students who are interested in electronics. It is efficient and practical....; pcba68 Embedded System

【NUCLEO-L552ZE Review】-3: Arduino vs. Mbed?: [i=s]This post was last edited by MianQi on 2021-1-9 10:03[/i]The NUCLEO-L552ZE package brochure mentions that there is an Arduino UNO v3 interface and an Mbed interface in the Zio port. After checkin...; MianQi stm32/stm8

What is the reason why IIC fails when the MSP430FR2311 power supply voltage rises to 3.5V? How to solve it?: Recently, I tested MSP430FR3211 and found that the MCU system runs normally when powered by a power supply below 3.3V. When the voltage rises to 3.5V, the MCU is running, but the outputs of both IIC l...; Aguilera Microcontroller MCU

Signal linear transformation problem: [i=s]This post was last edited by Yanyuan Technology House on 2019-6-13 08:56[/i]Normally, the linear amplification of a small DC signal into a large signal can be achieved only through an amplifier c...; 燕园技术宅 Analog electronics

Shortcut: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

Popular Components