參數(shù)資料
型號: SI5374B-A-GL
廠商: Silicon Laboratories Inc
文件頁數(shù): 48/69頁
文件大?。?/td> 0K
描述: IC CLK GEN/JITTER ATTEN 80LBGA
標(biāo)準(zhǔn)包裝: 240
系列: DSPLL®
類型: 時鐘發(fā)生器,漂移衰減器
PLL:
輸入: 時鐘
輸出: CML,CMOS,LVDS,LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 8:8
差分 - 輸入:輸出: 是/是
頻率 - 最大: 808MHz
除法器/乘法器: 是/是
電源電壓: 1.71 V ~ 2.75 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 80-LBGA
供應(yīng)商設(shè)備封裝: 80-BGA(10x10)
包裝: 托盤
其它名稱: 336-2046
Si5374
52
Rev. 1.1
Reset value = 0000 0000
Register 136.
Bit
D7D6D5D4D3D2D1D0
Name
RST_REG
ICAL
Type
R/W
RRRRRR
Bit
Name
Function
7
RST_REG
Internal Reset (Same as Pin Reset).
Note:
The I2C port may not be accessed until 10 ms after RST_REG is asserted.
0: Normal operation.
1: Reset all internal logic. Outputs disabled or tristated during reset.
6ICAL
Start Internal Calibration Sequence.
For proper operation, the device must go through an internal calibration sequence.
ICAL is a self-clearing bit. Writing a one to this location initiates an ICAL. The calibra-
tion is complete once the LOL alarm goes low. A valid stable clock (within 100 ppm)
must be present to begin ICAL.
Note: Any divider, CLKINn_RATE or BWSEL_REG changes require an ICAL to take
effect.
0: Normal operation.
1: Writing a "1" initiates internal self-calibration. Upon completion of internal self-cali-
bration, LOL will go low.
5:0
Reserved
Register 137.
Bit
D7
D6D5D4
D3D2D1
D0
Name
FASTLOCK
Type
RRR
R
R/W
Bit
Name
Function
7:1
Reserved
Do not modify.
0
FASTLOCK
This bit must be set to 1 to enable FASTLOCK.
This improves initial lock time by dynamically changing the loop bandwidth during
PLL lock acquisition.
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