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| 型号： | SI5325/26-EVB |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 50/62页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR SI5325/26 |
| 标准包装： | 1 |
| 主要目的： | 计时，时钟发生器 |
| 已用 IC / 零件： | SI5325，SI5326 |
| 已供物品： | 板，线缆，CD，文档 |
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Si5325
54
Rev. 0.5
21
CS_CA
I/O
LVCMOS
Input Clock Select/Active Clock Indicator.
Input: In manual clock selection mode, this pin functions as
the manual input clock selector if the CKSEL_PIN is
set to 1.
0 = Select CKIN1.
1 = Select CKIN2.
If CKSEL_PIN =0, the CKSEL_REG register bit
controls this function. If configured as input, must be
set high or low.
Output: In automatic clock selection mode, this pin indicates
which of the two input clocks is currently the active
clock. If alarms exist on both clocks, CA will indicate
the last active clock that was used before entering
the VCO freeze state. The CK_ACTV_PIN register
bit must be set to 1 to reflect the active clock status
to the CA output pin.
0 = CKIN1 active input clock.
1 = CKIN2 active input clock.
If CK_ACTV_PIN = 0, this pin will tristate. The CA
status will always be reflected in the
CK_ACTV_REG read only register bit.
22
SCL
I
LVCMOS
Serial Clock/Serial Clock.
This pin functions as the serial clock input for both SPI and
I2C modes.
This pin has a weak pulldown.
23
SDA_SDO
I/O
LVCMOS
Serial Data.
In I2C control mode (CMODE = 0), this pin functions as the
bidirectional serial data port.
In SPI control mode (CMODE = 1), this pin functions as the
serial data output.
25
24
A1
A0
ILVCMOS
Serial Port Address.
In I2C control mode (CMODE = 0), these pins function as
hardware controlled address bits. The I2C address is 1101
[A2] [A1] [A0].
In SPI control mode (CMODE = 1), these pins are ignored.
This pin has a weak pulldown.
26
A2_SS
ILVCMOS
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 pulldown.
Table 11. Si5325 Pin Descriptions (Continued)
Pin #
Pin Name
I/O
Signal Level
Description
Note: Internal register names are indicated by underlined italics, e.g., INT_PIN. See Si5325 Register Map.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| Si5325A-B-GM | 功能描述:锁相环 - PLL uP-PROGRAMMABE CLK MULT 10 MHZ-1.4 GHZ RoHS:否 制造商:Silicon Labs 类型:PLL Clock Multiplier 电路数量:1 最大输入频率:710 MHz 最小输入频率:0.002 MHz 输出频率范围:0.002 MHz to 808 MHz 电源电压-最大:3.63 V 电源电压-最小:1.71 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:QFN-36 封装:Tray |
| SI5325A-B-GMR | 制造商:Silicon Laboratories Inc 功能描述: |
| Si5325A-C-GM | 功能描述:锁相环 - PLL uP-PROGRAMMABE CLK MULT 10 MHZ-1.4 GHZ RoHS:否 制造商:Silicon Labs 类型:PLL Clock Multiplier 电路数量:1 最大输入频率:710 MHz 最小输入频率:0.002 MHz 输出频率范围:0.002 MHz to 808 MHz 电源电压-最大:3.63 V 电源电压-最小:1.71 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:QFN-36 封装:Tray |
| SI5325A-C-GMR | 功能描述:时钟发生器及支持产品 mP-Program Precision Clk Multiplier 2/2 RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
| Si5325B-B-GM | 功能描述:锁相环 - PLL uP-PROGRAMMABE CLK MULT 10 MHZ-808 MHZ RoHS:否 制造商:Silicon Labs 类型:PLL Clock Multiplier 电路数量:1 最大输入频率:710 MHz 最小输入频率:0.002 MHz 输出频率范围:0.002 MHz to 808 MHz 电源电压-最大:3.63 V 电源电压-最小:1.71 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:QFN-36 封装:Tray |
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