参数资料
型号: SI5374B-A-GL
厂商: SILICON LABORATORIES
元件分类: 时钟产生/分配
英文描述: 808 MHz, PROC SPECIFIC CLOCK GENERATOR, PBGA80
封装: 10 X 10 MM, ROHS COMPLIANT, PLASTIC, MO-192, BGA-80
文件页数: 43/64页
文件大小: 303K
代理商: SI5374B-A-GL
Si5374
48
Preliminary Rev. 0.4
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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