Skyworks Si5384 Manuals

Manuals and User Guides for Skyworks Si5384. We have 1 Skyworks Si5384 manual available for free PDF download: Reference Manual

Skyworks Si5384 Reference Manual (178 pages)

Brand: Skyworks | Category: Computer Hardware | Size: 2 MB

Table of Contents
2
Scope
5
Related Documents
5
Overview
6
Work Flow Using Clockbuilder Pro and the Register Map
6
Product Family
6
Functional Description
7
Dspll
8
DSPLL Loop Bandwidth
8
Fastlock
9
Smartlock Feature
11
Dividers Overview
15
Modes of Operation
16
Reset and Initialization
17
Changing Registers While Device in Operation
18
Flash Update/Programming
19
Upgrading Flash Firmware Image Using Skyworks Tools
20
Upgrading Firmware Image Using I C Master Routine
22
Data Sequence to Write File
23
ACK Polling or Delay Cycles
23
Bootloader Reply Response Codes
24
DSPLL Modes of Operation
24
Free Run Mode
24
Lock Acquisition Mode
24
Locked Mode
24
Holdover Mode
25
Clock Inputs (IN0, IN1, IN2, IN3, IN4)
28
Input Source Selection
29
Types of Inputs
31
Hitless Input Switching
32
Glitchless Input Switching
33
Synchronizing to Gapped Input Clocks
33
Fault Monitoring
34
Input LOS Detection
34
XA/XB LOS Detection
34
OOF Detection
36
LOL Detection (Standard Input Mode)
37
LOL Detection in PPS Mode
39
LOT Detection in PPS Mode
39
Interrupt Pin (Intrb)
40
Output Clocks
42
Outputs
42
Output Crosspoint
42
Output Terminations
43
Output Divider (R) Synchronization
43
Support for 1 Hz Output (1PPS)
44
Performance Guidelines for Outputs
45
Output Crosspoint and Differential Signal Format Selection
45
Differential Outputs
46
Differential Output Amplitude Controls
46
Differential Output Common Mode Voltage Selection
47
Recommended Settings for Differential LVPECL, LVDS, HCSL, and CML
48
LVCMOS Outputs
48
LVCMOS Output Terminations
49
LVCMOS Output Impedance and Drive Strength Selection
49
LVCMOS Output Signal Swing
50
LVCMOS Output Polarity
50
Output Enable/Disable
50
Output Disable State Selection
51
Output Disable During LOL
51
Output Disable During XAXB_LOS
51
Output Driver State When Disabled
51
Synchronous/Asynchronous Output Selection
52
Output Driver Disable Source Summary
52
Output Buffer Voltage Selection
54
Digitally Controlled Oscillator (DCO) Mode
55
Frequency Increment/Decrement Using Pin Controls
56
Serial Interface
58
I 2 C Interface
59
Field Programming
61
Recommended Crystals and External Oscillators
62
External Reference (XA/XB, Ref/Refb)
62
Performance of External References
63
Recommended Crystals
63
Recommended Oscillators for the Ref / Refb Inputs
64
Register Settings to Configure for External XTAL Reference
64
XAXB_FREQ_OFFSET Frequency Offset Register
65
Crystal and Device Circuit Layout Recommendations
66
56-Lead LGA Si5383/84 Layout Recommendations
66
Si5383/84 Crystal Guidelines
67
Si5383/84 Output Clocks
71
Power Management
72
Power Management Features
72
Power Supply Recommendations
72
Power Supply Sequencing
72
Grounding Vias
72
Base Vs. Factory Preprogrammed Devices
73
Base" Devices (also Known as "Blank" Devices)
73
Factory Preprogrammed" (Custom OPN) Devices
73
Register Map
74
Direct Memory Map
74
Indirect Memory Map
77
Si5383/84 Register Map
78
Registers Si5383/84
79
Registers Si5383/84
99
Registers Si5383/84
105
Registers Si5383/84
114
Registers Si5383
117
Registers Si5383/84
127
Registers Si5383
131
Registers Si5383/84
140
Registers Si5383/84
150
Page a Registers Si5383/84
151
Page B Registers Si5383/84
152
Page D Registers Si5383/84
154
Registers Si5383/84, 1 PPS Mode
155
PPS Loop Registers Si5383/84
157
Phase Readout Registers Si5383/84, 1PPS Mode
172
Custom Differential Amplitude Controls
176
Accessing Design and Support Collateral
177

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Skyworks Si5384 Reference Manual (178 pages)

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