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參數(shù)資料
| 型號： | SI5317A-C-GM |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 15/46頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CLK JITTER CLEANR PROG 36QFN |
| 應用說明： | SI5315/17 Crystal Selection AppNote |
| 特色產(chǎn)品： | Si5317 Jitter Cleaning Clock |
| 標準包裝： | 490 |
| 系列： | DSPLL® |
| 類型： | 抖動消除器 |
| PLL： | 帶旁路 |
| 輸入： | 時鐘，晶體 |
| 輸出： | CML，CMOS，LVDS，LVPECL |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:2 |
| 差分 - 輸入:輸出： | 是/是 |
| 頻率 - 最大： | 710MHz |
| 除法器/乘法器： | 無/無 |
| 電源電壓： | 1.71 V ~ 3.63 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 36-VFQFN 裸露焊盤 |
| 供應商設備封裝： | 36-QFN（6x6） |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 628 (CN2011-ZH PDF) |
| 其它名稱： | 336-1923 |
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Si5317
22
Rev. 1.1
3.3. PLL Self-Calibration
An internal self-calibration (ICAL) is performed before operation to optimize loop parameters and jitter
performance. While the self-calibration is being performed, the DSPLL is being internally controlled by the self-
calibration state machine. The LOL alarm will be active during ICAL. The self-calibration time tLOCKHW is given in
Any of the following events will trigger a self-calibration:
Power-on-reset (POR)
Release of the external reset pin RST (transition of RST from 0 to 1)
Change in FRQSEL, FRQTBL, BWSEL, or RATE[1:0] pins
Internal DSPLL registers out-of-range, indicating the need to relock the DSPLL
In any of the above cases, an ICAL will be initiated if a valid input clock exists with no input alarm. The external
crystal or reference clock must also be present for the self-calibration to begin. If no valid input clock is present, the
self-calibration state machine will wait until it appears, at which time the calibration will start.
After a successful ICAL has been performed with a valid input clock, no subsequent self-calibrations are performed
unless one of the above conditions are met. If the input clock is lost following self-calibration, the device enters
VCO freeze mode. When the input clock returns, the device relocks to the input clock without performing a self-
calibration.
3.3.1. Input Clock Stability during Internal Self-Calibration
An exit from reset must occur when the selected CKIN clock is stable in frequency with a frequency value that is
within the device operating range.
3.3.2. Self-Calibration caused by Changes in Input Frequency
If the selected CKIN frequency varies by 500 ppm or more within the frequency range defined by FRQSEL and
FRQTBL since the last calibration, the device may initiate a self-calibration.
3.3.3. Device Reset
Upon powerup, the device internally executes a power-on-reset (POR) which resets the internal device logic. The
pin RST can also be used to initiate a reset. The device stays in this state until a valid CKINn is present, when it
then performs a PLL self-calibration (refer to section 3.3. "PLL Self-Calibration”).
3.3.4. Recommended Reset Guidelines
Follow the recommended RESET guidelines in Table 9 that describe when reset should be applied to a device.
Table 9. Si5317 Pins and Reset
Pin #
Si5317 Pin Name
Must Reset after Changing
2FRQTBL
Yes
11
RATE0
Yes
15
RATE1
Yes
22
BWSEL0
Yes
23
BWSEL1
Yes
24
FRQSEL0
Yes
25
FRQSEL1
Yes
26
FRQSEL2
Yes
27
FRQSEL3
Yes
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| SI5321-G-BC | IC PREC CLOCK MULTIPLIER 63CBGA |
| SI5321-H-BL | IC CLOCK MULT SONET/SDH 63-PBGA |
| SI5322-B-GM | IC PREC CLOCK MULTIPLIER 36QFN |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SI5317A-C-GMR | 功能描述:時鐘合成器/抖動清除器 Pin-Program Jitter Clean Clk 1In/2Out RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)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 |
| Si5317B-C-GM | 功能描述:標準時鐘振蕩器 Pin-Program. Jitter Cleaning Clock RoHS:否 制造商:AVX 產(chǎn)品:Standard Clock Oscillators 封裝 / 箱體:7 mm x 5 mm 頻率:75 MHz 頻率穩(wěn)定性:50 PPM 電源電壓:2.5 V 負載電容: 端接類型:SMD/SMT 最小工作溫度:0 C 最大工作溫度:+ 70 C 輸出格式:LVDS 尺寸: 封裝:Reel 系列: |
| SI5317B-C-GMR | 功能描述:時鐘合成器/抖動清除器 Pin-Program Jitter Clean Clk 1In/2Out RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)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 |
| Si5317C-C-GM | 功能描述:標準時鐘振蕩器 Pin-Program. Jitter Cleaning Clock RoHS:否 制造商:AVX 產(chǎn)品:Standard Clock Oscillators 封裝 / 箱體:7 mm x 5 mm 頻率:75 MHz 頻率穩(wěn)定性:50 PPM 電源電壓:2.5 V 負載電容: 端接類型:SMD/SMT 最小工作溫度:0 C 最大工作溫度:+ 70 C 輸出格式:LVDS 尺寸: 封裝:Reel 系列: |
| SI5317C-C-GMR | 功能描述:時鐘合成器/抖動清除器 Pin-Program Jitter Clean Clk 1In/2Out RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)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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