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參數(shù)資料
| 型號(hào)： | MAX3670EGJ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | XO, clock |
| 英文描述： | Low-Jitter 155MHz/622MHz Clock Generator |
| 中文描述： | 670 MHz, OTHER CLOCK GENERATOR, QCC32 |
| 封裝： | 5 X 5 MM, QFN-32 |
| 文件頁(yè)數(shù)： | 7/13頁(yè) |
| 文件大?。?/td> | 339K |
| 代理商： | MAX3670EGJ |
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Detailed Description
The MAX3670 contains all the blocks needed to form a
PLL except for the VCO, which must be supplied sepa-
rately. The MAX3670 consists of input buffers for the ref-
erence clock and VCO, input and output clock-divider
circuitry, LOL detection circuitry, gain-control logic, a
phase-frequency detector and charge pump, an op
amp, and PECL output buffers.
This device is designed to clean up the noise on the
reference clock input and provide a low-jitter system
clock output.
Input Buffer for Reference
Clock and VCO
The MAX3670 contains differential inputs for the refer-
ence clock and the VCO. These inputs can be DC-cou-
pled and are internally biased with high impedance so
that they can be AC-coupled (Figure 1 in the
Interface
Schematic
section). A single-ended VCO or reference
clock can also be applied.
Input and Output Clock-Divider Circuitry
The reference clock and VCO input buffers are followed
by a pair of clock dividers that prescale the input fre-
quency of the reference clock and VCO to 77.76MHz.
M
Low-Jitter 155MHz/622MHz
Clock Generator
_______________________________________________________________________________________
7
MAX3670
VCO
K
VCO
C3
R3
THADJ
CTH
VC
COMP
POLAR
OPAMP-
OPAMP+
C1
R1
C1
R1
OPAMP
LOL
REFCLK+
REFCLK-
RSEL
VSEL
VCOIN+
VCOIN-
GSEL1 GSEL2
GSEL3
PSEL1
PSEL2
POUT-
POUT+
MOUT+
C2+
C2-
MOUT-
PECL
PECL
DIV
(N1)
DIV
(N2)
DIV
1/2/4/8
GAIN-CONTROL LOGIC
LOL
DIV
(N3)
DIV
(N2)
PFD/CP
K
PD
Functional Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3670EGJ-T | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 Low-Jitter 155MHz/622MHz RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX3670ETJ+ | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 Low-Jitter 155MHz/622MHz RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX3670ETJ+T | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 Low-Jitter 155MHz/622MHz RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX3670ETJ+TD | 制造商:Maxim Integrated Products 功能描述:CLOCK GEN 32QFN - Tape and Reel |
| MAX3670EVKIT | 制造商:Microsemi Corporation 功能描述:EV Kit Is A Fully Assembled And Tested Surface-Mount Printed Circuit Board 制造商:Microsemi Corporation 功能描述:MAX3670 EVALUATION KIT - Bulk 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:KIT EVALUATION MAX MAX3670 制造商:Microsemi Corporation 功能描述:KIT EVALUATION MAX MAX3670 |
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