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参数资料
| 型号： | M685-02-AI-AB |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | XO, clock |
| 英文描述： | VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 670.8386 MHz |
| 文件页数： | 1/7页 |
| 文件大小： | 281K |
| 代理商： | M685-02-AI-AB |
M685 Datasheet Rev 0.4
Revised 16Nov2004
Integr a t ed Cir cui t S ystems , Inc . ● N e tw or kin g & C o mm un icat ion s ● www. icst.com ● te l (5 08 ) 85 2-5 4 0 0
M685
DUAL SAW, SELECTABLE FREQUENCY VCSO
Prelimina r y Inf o r m ation
GENERAL DESCRIPTION
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 175 MHz.
The M685-02 provides 500 to 700 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).
FEATURES
◆ Two integrated SAW devices and selectable output
frequency; supports multi-rate optical interfaces
◆ M685-01 output frequencies from 125 to 175 MHz
M685-02 output frequencies from 500 to 700 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
PIN ASSIGNMENT (5 x 7.5mm SMT)
Figure 1: Pin Assignment
BLOCK DIAGRAM
Figure 2: Block Diagram
Sample of Available Output Frequencies
VCSO Center
Frequencies1 (MHz)
Note 1: Specify VCSO center frequencies at time of order
Applications
155.5200, 167.3316
SONET/SDH, SONET/SDH FEC
156.2500, 161.1328
Gigabit Ethernet, GbE FEC
622.0800, 669.3266
SONET/SDH, SONET/SDH FEC
625.0000, 644.5313
Gigabit Ethernet, GbE FEC
VI
N
VC
C
F
OU
T
F_SEL
VIN
nFOUT
SAW Delay Line
Phase
Shifter
M680
VCSO
FOUT
SAW Delay Line
Phase
Shifter
VCSO
M685
M685 Dual SAW, Selectable Frequency VCSO
相关PDF资料 |
PDF描述 |
|---|---|
| M685-01-BO-BF | VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 153.6 MHz |
| M685-02-AE-AC | VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 666.5143 MHz |
| M685-01-BB-BC | VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 156.25 MHz |
| M685-01-BC-BO | VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 156.8324 MHz |
| M685-01-BD-BH | VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 161.1328 MHz |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M685-02-AM-AQ | 功能描述:时钟合成器/抖动清除器 DUAL VCSO RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| M68502AMAQT | 制造商:Integrated Device Technology Inc 功能描述:Controlled Oscillator 657.4219MHz/707.3527MHz VCSO LVPECL 6-Pin SMT T/R |
| M685-02-AM-AQT | 功能描述:时钟合成器/抖动清除器 DUAL VCSO RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| M6855/2-02H320 | 制造商:MIL SPECS 功能描述: |
| M6855/4-10L129 | 制造商:FLEXCO 功能描述: |
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