参数资料
型号: SI5319A-C-GM
厂商: Silicon Laboratories Inc
文件页数: 11/50页
文件大小: 0K
描述: IC CLOCK MULT/ATTENUATOR 36QFN
标准包装: 490
系列: DSPLL®
类型: 时钟/频率倍增器,抖动衰减器,多路复用器
PLL:
主要目的: 以太网,SONET/SDH
输入: 时钟,晶体
输出: CML,CMOS,LVDS,LVPECL
电路数: 1
比率 - 输入:输出: 1:1
差分 - 输入:输出: 是/是
频率 - 最大: 1.4GHz
电源电压: 1.71 V ~ 3.63 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 36-VFQFN 裸露焊盘
供应商设备封装: 36-QFN(6x6)
包装: 托盘
Si5319
Rev. 1.0
19
Reset value = 0001 0100
Register 0.
Bit
D7D6D5D4D3D2D1
D0
Name
FREE_
RUN
CKOUT_
ALWAYS_
ON
BYPASS_
REG
Type
R
R/W
RRR
R/W
R
Bit
Name
Function
7
Reserved
Reserved.
6FREE_RUN
Free Run.
Internal to the device, route XA/XB to CKIN2. This allows the device to lock to its XA-XB
reference (either internal or external).
0: Disable
1: Enable
5CKOUT_
ALWAYS_ON
CKOUT Always On.
This will bypass the SQ_ICAL function. Output will be available even if SQ_ICAL is on
and ICAL is not complete or successful. See Table 9 on page 39.
0: Squelch output until part is calibrated (ICAL).
1: Device generates output clock, including during calibration. Note: The frequency may
be significantly off until the part is calibrated.
4:2
Reserved
Reserved.
1
BYPASS_
REG
Bypass Register.
This bit enables or disables the PLL bypass mode. Use only when the device is in
VCO_FREEZE or before the first ICAL. Bypass mode is not supported for CMOS output
clocks.
0: Normal operation
1: Bypass mode. Selected input clock is connected to CKOUT buffers, bypassing PLL.
0
Reserved
Reserved.
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