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參數資料
| 型號： | M685-01-BA-BD |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | XO, clock |
| 英文描述： | VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 155.52 MHz |
| 文件頁數： | 1/7頁 |
| 文件大小： | 281K |
| 代理商： | M685-01-BA-BD |
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
相關PDF資料 |
PDF描述 |
|---|---|
| M685-01-BE-BD | VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 166.6286 MHz |
| M685-01-BE-BL | VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 166.6286 MHz |
| M685-01-BK-BF | VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 172.6423 MHz |
| M685-01-BO-BA | VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 153.6 MHz |
| M685-02-AD-AM | VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 644.5313 MHz |
相關代理商/技術參數 |
參數描述 |
|---|---|
| M685-01-BA-BH | 制造商:ICS 制造商全稱:ICS 功能描述:DUAL SAW, SELECTABLE FREQUENCY VCSO |
| M685-01-BB-BD | 制造商:ICS 制造商全稱:ICS 功能描述:DUAL SAW, SELECTABLE FREQUENCY VCSO |
| M685-02-AA-AB | 功能描述:時鐘合成器/抖動清除器 DUAL VCSO RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| M685-02-AA-ABT | 制造商:Integrated Device Technology Inc 功能描述:Controlled Oscillator 622.08MHz/625MHz VCSO LVPECL 6-Pin SMT T/R 制造商:Integrated Device Technology Inc 功能描述:5X7.5 LCC(LEAD FREE) - Tape and Reel 制造商:Integrated Device Technology Inc 功能描述:DUAL VCSO |
| M685-02-AA-AD | 功能描述:時鐘合成器/抖動清除器 DUAL VCSO RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
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