Skyworks Si5386 Manuals

Manuals and User Guides for Skyworks Si5386. We have 1 Skyworks Si5386 manual available for free PDF download: Reference Manual

Skyworks Si5386 Reference Manual

Skyworks Si5386 Reference Manual (133 pages)

Brand: Skyworks | Category: Computer Hardware | Size: 1 MB

Table of Contents

Table of Contents
2
Functional Description
5
Dspll
5
LTE Frequency Configuration
5
Configuration for JESD204B Subclass 1 Clock Generation
7
DSPLL Loop Bandwidth
8
Fastlock
8
Holdover Exit Bandwidth
9
Dividers Overview
9
Modes of Operation
10
Reset and Initialization
11
Updating Registers During Device Operation
12
NVM Programming
13
Free Run Mode
13
Lock Acquisition Mode
13
Locked Mode
13
Holdover Mode
14
VCO Freeze Mode
16
Clock Inputs
17
Input Source Selection
17
Manual Input Switching
17
Automatic Input Switching
18
Types of Inputs
19
Unused Inputs
21
Use Case Scenario: Using more than Two Inputs
22
Hitless Input Switching with Phase Buildout
22
Ramped Input Switching
23
Hitless Switching, Loss of Lock (LOL), and Fastlock
23
Glitchless Input Switching
23
Slew Rate Considerations
24
Fault Monitoring
25
Input Loss of Signal (LOS) Fault Detection
26
Out-Of-Frequency (OOF) Detection
28
Loss of Lock (LOL) Fault Monitoring
30
Interrupt Pin (INTR)
32
Output Clocks
34
Output Crosspoint Switch
34
Output R Divider Synchronization
35
Performance Guidelines for Outputs
36
Optimizing Output Phase Noise
37
Output Signal Format
37
Output Driver Supply Select
38
Differential Outputs
39
Differential Output Terminations
39
Differential Output Amplitude Controls
40
Differential Output Common Mode Voltage Selection
41
Recommended Settings for Differential LVPECL, LVDS, HCSL, and CML
42
LVCMOS Outputs
43
LVCMOS Output Terminations
43
LVCMOS Output Impedance and Drive Strength Selection
44
LVCMOS Output Signal Swing
44
LVCMOS Output Polarity
45
Output Enable/Disable
46
Output Driver State When Disabled
47
Synchronous Output Enable/Disable Feature
48
Automatic Output Disable During LOL
48
Automatic Output Disable During LOSXAXB
49
Output Driver Disable Source Summary
50
Static Output Skew Control
51
Dynamic Output Skew Control
53
Zero Delay Mode
54
Serial Interface
56
I 2 C Interface
58
SPI Interface
60
Field Programming
65
XAXB External References
66
Performance of External References
66
XO and Device Circuit Layout Recommendations
67
Si5386 64-Pin QFN External XO Layout Recommendations
67
Power Management
73
Power Management Features
73
Power Supply Recommendations
73
Power Supply Sequencing
74
Grounding Vias
74
Base Vs. Factory Preprogrammed Devices
75
Base" Devices (A.k.a. "Blank" Devices)
75
Factory Preprogrammed" (Custom OPN) Devices
75
Part Numbering Summary
75
Register Map
76
Registers
76
Registers
91
Registers
98
Registers
104
Registers
106
Registers
107
Registers
117
Page a Registers
119
Page B Registers
124
Page C Registers
129
Appendix-Custom Differential Amplitude Controls
130
Revision History
132

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