參數(shù)資料
型號: SI5319A-C-GMR
廠商: Silicon Laboratories Inc
文件頁數(shù): 31/50頁
文件大?。?/td> 0K
描述: IC CLOCK MULT/ATTENUATOR 36QFN
標準包裝: 250
系列: DSPLL®
類型: 時鐘/頻率倍增器,抖動衰減器,多路復用器
PLL:
主要目的: 以太網(wǎng),SONET/SDH
輸入: 時鐘,晶體
輸出: CML,CMOS,LVDS,LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 1:1
差分 - 輸入:輸出: 是/是
頻率 - 最大: 1.4GHz
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: 帶卷 (TR)
Si5319
Rev. 1.0
37
Reset value = 0000 0000
Register 136.
Bit
D7D6D5D4D3D2D1D0
Name
RST_REG
ICAL
Reserved
GRADE_RO [1:0]
Type
R/W
R
Bit
Name
Function
7
RST_REG
Internal Reset (Same as Pin Reset).
Note:
The I2C (or SPI) port may not be accessed until 10 ms after RST_REG is asserted.
0: Normal operation.
1: Reset of all internal logic. Outputs disabled or tristated during reset.
6ICAL
Start an 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 calibration 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-calibra-
tion, LOL will go low.
5:2
Reserved
Reserved.
1:0
GRADE_RO
[1:0]
Indicates Maximum Clock Output Frequency of this Device.
Limits the range of the N1_HS divider.
00: N1_HS x NC1_LS > 4. Maximum clock output frequency = 1.4175 GHz.
01: N1_HS x NC1_LS > 6. Maximum clock output frequency = 808 MHz.
10: N1_HS x NC1_LS > 14. Maximum clock output frequency = 346 MHz.
11: N1_HS x NC1_LS > 20. Maximum clock output frequency = 243 MHz.
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