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參數(shù)資料
| 型號： | SI5356AAXXXXXGM |
| 廠商： | SILICON LABORATORIES |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | 200 MHz, PROC SPECIFIC CLOCK GENERATOR, QCC24 |
| 封裝： | 4 X 4 MM, ROHS COMPLIANT, MO-220VGGD-8, QFN-24 |
| 文件頁數(shù)： | 2/26頁 |
| 文件大小： | 345K |
| 代理商： | SI5356AAXXXXXGM |
Si5356
10
Preliminary Rev. 0.3
Figure 1. Connecting an XTAL to the Si5356
For synchronous timing applications, the Si5356 can
lock to a 5 to 200 MHz CMOS reference clock. A typical
interface circuit is shown in Figure 2. A series
termination resistor matching the driver’s output
impedance to the impedance of the transmission line is
recommended to reduce reflections.
Figure 2. Interfacing CMOS Reference Clocks
to the Si5356
Control input signals to SSC_DIS and OEB cannot
exceed 1.3 V yet also need to meet the VOH and VOL
specifications outlined in Table 3 on page 5. When
these inputs are driven from CMOS sources, a resistive
attenuator as shown in the Typical Application Circuits
must be used. Suggested standard 1% resistor values
for RSE and RSH, when using a CMOS source, are
given below.
3.3. Breakthrough MultiSynth Technology
Modern timing architectures require a wide range of
frequencies which are often non-integer related.
Traditional clock architectures address this by using a
combination of single PLL ICs, 4-PLL ICs and discrete
XOs, often at the expense of BOM complexity and
power. The Si5356 use patented MultiSynth technology
to
dramatically
simplify
timing
architectures
by
integrating the frequency synthesis capability of 4
phase-locked loops (PLLs) in a single device, greatly
minimizing size and power requirements versus
traditional solutions. Based on a fractional-N PLL, the
heart of the architecture is a low phase noise, high-
frequency VCO. The VCO supplies a high frequency
output clock to the MultiSynth block on each of the four
independent output paths. Each MultiSynth operates as
a high-speed fractional divider with Silicon Laboratories'
proprietary phase error correction to divide down the
VCO clock to the required output frequency with very
low jitter.
The first stage of the MultiSynth architecture is a
fractional-N divider which switches seamlessly between
the two closest integer divider values to produce the
exact output clock frequency with 0 ppm error. To
eliminate phase error generated by this process,
MultiSynth calculates the relative phase difference
between the clock produced by the fractional-N divider
and the desired output clock and dynamically adjusts
the phase to match the ideal clock waveform. This novel
approach makes it possible to generate any output
clock frequency without sacrificing jitter performance.
Based on this architecture, each clock output can
produce any frequency from 1 to 200 MHz.
Figure 3. Silicon Labs' MultiSynth Technology
CMOS Level
RSE ohms
RSH ohms
1.8 V
1000
1580
2.5 V
1960
1580
3.3 V
3090
1580
XB
XA
XTAL
Si5356
CLKIN
50
Rs
Si5356
Fractional-N
Divider
Phase
Adjust
Phase Error
Calculator
Divider Select
(DIV1, DIV2)
fVCO
fOUT
MultiSynth
相關PDF資料 |
PDF描述 |
|---|---|
| SI5356A-AXXXXX-GMR | 200 MHz, PROC SPECIFIC CLOCK GENERATOR, QCC24 |
| SI5369B-C-GQR | 808 MHz, PROC SPECIFIC CLOCK GENERATOR, PQFP100 |
| SI5369B-C-GQ | 808 MHz, PROC SPECIFIC CLOCK GENERATOR, PQFP100 |
| SI5369C-C-GQ | 346 MHz, PROC SPECIFIC CLOCK GENERATOR, PQFP100 |
| SI5369D-C-GQ | 243 MHz, PROC SPECIFIC CLOCK GENERATOR, PQFP100 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| Si5356A-Axxxxx-GM | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 I2C-programmable CMOS clock generator, 1 - 200 MHz, Custom Factory Programmed NVM 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-56 |
| Si5356A-B-GM | 功能描述:時鐘緩沖器 I2C-prog 8-out CMOS Clk gen 1-200MHz RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:5 最大輸入頻率:40 MHz 傳播延遲（最大值）: 電源電壓-最大:3.45 V 電源電壓-最小:2.375 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LLP-24 封裝:Reel |
| Si5356A-B-GMR | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 I2C CMOS Clk Gen 1-200MHz Blank NVM 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-56 |
| SI5356A-BXXXXX-GM | 制造商:Silicon Laboratories Inc 功能描述:IC CLK GENERATOR I2C 24QFN |
| Si5356-EVB | 功能描述:時鐘和定時器開發(fā)工具 Si5356 Eval Board RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Modules 類型:Clock Conditioners 工具用于評估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V |
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