参数资料
型号: I2811BF-08SR
厂商: ON SEMICONDUCTOR
元件分类: 时钟产生/分配
英文描述: 160 MHz, OTHER CLOCK GENERATOR, PDSO8
封装: LEAD FREE, SOIC-8
文件页数: 2/6页
文件大小: 130K
代理商: I2811BF-08SR
P2811A/B and P2812A/B and P2814A/B
.
Rev. 1 | Page 2 of 6 | www.onsemi.com
Block Diagram
Pin Configuration
Pin Description
Pin#
Pin Name
Type
Description
1
XIN / CLKIN
I
Crystal connection or external Clock input.
2
VSS
P
Ground to entire chip.
3
D_C
I
Digital logic input used to select Down (LOW) or Center (HIGH) spread options.
(Refer to Frequency Deviation and Spread Selection Table).
This pin has an internal pull-up resistor.
4
SRS
I
Spread range select. Digital logic input used to select frequency deviation
(Refer to Frequency Deviation and Spread Selection Table).
This pin has an internal pull-up resistor.
5
ModOUT
O
Spread spectrum clock output.
6
FRS
I
Frequency range select. Digital logic input used to select Input frequency range
(Refer to Input/Output Frequency Range Selection Table).
This pin has an internal pull-up resistor.
7
VDD
P
Power supply for the entire chip.
8
XOUT
O
Crystal connection. If using an external reference, this pin must be left
unconnected.
ModOUT
1
2
3
4
5
6
7
8
FRS
XOUT
XIN / CLKIN
VSS
D_C
SRS
VDD
P2811A/B
P2812A/B
P2814A/B
XIN / CLKIN
Crystal
Oscillator
Frequency
Divider
Feedback
Divider
r
Modulation
Phase
Detector
Loop
Filter
VCO
Output
Divider
ModOUT
PLL
VDD
D_C SRS FRS
XOUT
VSS
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