SNAS522K
September 2011 – December 2023
LMK03806
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
Timing Requirements
5.7
Typical Characteristics
6
Parameter Measurement Information
6.1
Differential Voltage Measurement Terminology
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagrams
7.3
Features Description
7.3.1
Serial MICROWIRE Timing Diagram and Terminology
7.3.2
Crystal Support With Buffered Outputs
7.3.3
Integrated Loop Filter Poles
7.3.4
Integrated VCO
7.3.5
Clock Distribution
7.3.5.1
CLKout DIvider
7.3.5.2
Programmable Output Type
7.3.5.3
Clock Output Synchronization
7.3.6
Default Start-Up Clocks
7.4
Device Functional Modes
7.5
Programming
7.5.1
General Information
7.5.1.1
Special Programming Case for R0 to R5 for CLKoutX_Y_DIV > 25
7.5.1.2
Recommended Initial Programming Sequence
7.5.1.3
READBACK
7.5.1.3.1
Readback Example
8
Application and Implementation
8.1
Application Information
8.1.1
Crystal Interface
8.1.2
Driving OSCin Pins With a Single-Ended Source
8.1.3
Driving OSCin Pins With a Differential Source
8.1.4
Frequency Planning With the LMK03806
8.1.5
Configuring the PLL
8.1.5.1
Example PLL Configuration
8.1.6
Digital Lock Detect
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Device Selection
8.2.2.1.1
Clock Architect
8.2.2.1.2
Clock Design Tool
8.2.2.1.3
Calculation Using LCM
8.2.2.2
Device Configuration
8.2.2.3
PLL Loop Filter Design
8.2.2.3.1
Example Loop Filter Design
8.2.2.4
Other Device Specific Configuration
8.2.2.4.1
Digital Lock Detect
8.2.2.5
Device Programming
8.2.3
Application Curves
8.3
System Examples
8.3.1
System Level Diagram
8.4
Best Design Practices
8.4.1
LVCMOS Complementary vs. Non-Complementary Operation
8.4.2
LVPECL Outputs
8.4.3
Sharing MICROWIRE (SPI) Lines
8.4.4
SYNC Pin
8.4.5
CLKout Vcc Pins
8.5
Power Supply Recommendations
8.5.1
Current Consumption and Power Dissipation Calculations
8.6
Layout
8.6.1
Layout Guidelines
8.6.2
Layout Example
9
Device and Documentation Support
9.1
Device Support
9.1.1
Development Support
9.2
Documentation Support
9.2.1
Related Documentation
9.3
Receiving Notification of Documentation Updates
9.4
Support Resources
9.5
Trademarks
9.6
Electrostatic Discharge Caution
9.7
Glossary
10
Register Maps
10.1
Default Device Register Settings After Power On Reset
10.2
Register R0 TO R5
10.2.1
CLKoutX_Y_PD, Powerdown CLKoutX_Y Output Path
10.2.2
RESET
10.2.3
POWERDOWN
10.2.4
CLKoutX_Y_DIV, Clock Output Divide
10.3
Registers R6 TO R8
10.3.1
CLKoutX_TYPE
10.4
REGISTER R9
10.5
REGISTER R10
10.5.1
OSCout1_TYPE, LVPECL Output Amplitude Control
10.5.2
OSCout0_TYPE
10.5.3
EN_OSCoutX, OSCout Output Enable
10.5.4
OSCoutX_MUX, Clock Output Mux
10.5.5
OSCout_DIV, Oscillator Output Divide
10.6
REGISTER R11
10.6.1
NO_SYNC_CLKoutX_Y
10.6.2
SYNC_POL_INV
10.6.3
SYNC_TYPE
10.6.4
EN_PLL_XTAL
10.7
REGISTER R12
10.7.1
LD_MUX
10.7.2
LD_TYPE
10.7.3
SYNC_PLL_DLD
10.8
REGISTER R13
10.8.1
READBACK_TYPE
10.8.2
GPout0
10.9
REGISTER 14
10.9.1
GPout1
10.10
REGISTER 16
10.11
REGISTER 24
10.11.1
PLL_C4_LF, PLL Integrated Loop Filter Component
10.11.2
PLL_C3_LF, PLL Integrated Loop Filter Component
10.11.3
PLL_R4_LF, PLL Integrated Loop Filter Component
10.11.4
PLL_R3_LF, PLL Integrated Loop Filter Component
10.12
REGISTER 26
10.12.1
EN_PLL_REF_2X, PLL Reference Frequency Doubler
10.12.2
PLL_CP_GAIN, PLL Charge Pump Current
10.12.3
PLL_DLD_CNT
10.13
REGISTER 28
10.13.1
PLL_R, PLL R Divider
10.14
REGISTER 29
10.14.1
OSCin_FREQ, PLL Oscillator Input Frequency Register
10.14.2
PLL_N_CAL, PLL N Calibration Divider
10.15
REGISTER 30
10.15.1
PLL_P, PLL N Prescaler Divider
10.15.2
PLL_N, PLL N Divider
10.16
REGISTER 31
10.16.1
READBACK_ADDR
10.16.2
uWire_LOCK
11
Revision History
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
NKD|64
MPQS032B
Thermal pad, mechanical data (Package|Pins)
NKD|64
QFND765
Orderable Information
snas522k_oa
snas522k_pm
9
Device and Documentation Support