SI5324C-C-GM 查看數據表（PDF） - Silicon Laboratories
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SI5324C-C-GM Datasheet PDF : 72 Pages
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Si5324
Pin #
26
27
29
28
34
35
36
Pin Name I/O Signal Level
Description
A2_SS
I
LVCMOS Serial Port Address/Slave Select.
In I2C control mode (CMODE = 0), this pin functions as a hardware
controlled address bit [A2].
In SPI control mode (CMODE = 1), this pin functions as the slave
select input.
This pin has a weak pull-down.
SDI
I
LVCMOS Serial Data In.
In I2C control mode (CMODE = 0), this pin is ignored.
In SPI control mode (CMODE = 1), this pin functions as the serial
data input.
This pin has a weak pull-down.
CKOUT1– O
CKOUT1+
Multi
Output Clock 1.
Differential output clock with a frequency range of 8 kHz to
1.4175 GHz. Output signal format is selected by SFOUT1_REG
register bits. Output is differential for LVPECL, LVDS, and CML
compatible modes. For CMOS format, both output pins drive identi-
cal single-ended clock outputs.
CKOUT2– O
CKOUT2+
Multi
Output Clock 2.
Differential output clock with a frequency range of 8 kHz to
1.4175 GHz. Output signal format is selected by SFOUT2_REG
register bits. Output is differential for LVPECL, LVDS, and CML
compatible modes. For CMOS format, both output pins drive identi-
cal single-ended clock outputs.
CMODE I
LVCMOS
Control Mode.
Selects I2C or SPI control mode for the Si5324.
0 = I2C Control Mode
1 = SPI Control Mode
This pin must not be NC. Tie either high or low.
GND PAD
GND
GND
Supply
Ground Pad.
The ground pad must provide a low thermal and electrical
impedance to a ground plane.
Note: Internal register names are indicated by underlined italics, e.g., INT_PIN. See Si5324 Register Map.
Rev. 1.1
63
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