JAJSO87
may 2023
LMK04368-EP
PRODUCTION DATA
1
1
特長
2
アプリケーション
3
概要
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Timing Requirements
6.7
Timing Diagram
6.8
Typical Characteristics
7
Parameter Measurement Information
7.1
Charge Pump Current Specification Definitions
7.1.1
Charge Pump Output Current Magnitude Variation vs Charge Pump Output Voltage
7.1.2
Charge Pump Sink Current vs Charge Pump Output Source Current Mismatch
7.1.3
Charge Pump Output Current Magnitude Variation vs Ambient Temperature
7.2
Differential Voltage Measurement Terminology
8
Detailed Description
8.1
Overview
8.1.1
Differences from the LMK04832
8.1.1.1
Jitter Cleaning
8.1.1.2
JEDEC JESD204B/C Support
8.1.2
Clock Inputs
8.1.2.1
Inputs for PLL1
8.1.2.2
Inputs for PLL2
8.1.2.3
Inputs When Using Clock Distribution Mode
8.1.3
PLL1
8.1.3.1
Frequency Holdover
8.1.3.2
External VCXO for PLL1
8.1.4
PLL2
8.1.4.1
Internal VCOs for PLL2
8.1.4.2
External VCO Mode
8.1.5
Clock Distribution
8.1.5.1
Clock Divider
8.1.5.2
High Performance Divider Bypass Mode
8.1.5.3
SYSREF Clock Divider
8.1.5.4
Device Clock Delay
8.1.5.5
Dynamic Digital Delay
8.1.5.6
SYSREF Delay: Global and Local
8.1.5.7
Programmable Output Formats
8.1.5.8
Clock Output Synchronization
8.1.6
0-Delay
8.1.7
Status Pins
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Synchronizing PLL R Dividers
8.3.1.1
PLL1 R Divider Synchronization
8.3.1.2
PLL2 R Divider Synchronization
8.3.2
SYNC/SYSREF
8.3.3
JEDEC JESD204B/C
8.3.3.1
How to Enable SYSREF
8.3.3.1.1
Setup of SYSREF Example
8.3.3.1.2
SYSREF_CLR
8.3.3.2
SYSREF Modes
8.3.3.2.1
SYSREF Pulser
8.3.3.2.2
Continuous SYSREF
8.3.3.2.3
SYSREF Request
8.3.4
Digital Delay
8.3.4.1
Fixed Digital Delay
8.3.4.2
Fixed Digital Delay Example
8.3.4.3
Dynamic Digital Delay
8.3.4.4
Single and Multiple Dynamic Digital Delay Example
8.3.5
SYSREF to Device Clock Alignment
8.3.6
Input Clock Switching
8.3.6.1
Input Clock Switching - Manual Mode
8.3.6.2
Input Clock Switching - Pin Select Mode
8.3.6.3
Input Clock Switching - Automatic Mode
8.3.7
Digital Lock Detect (DLD)
8.3.7.1
Calculating Digital Lock Detect Frequency Accuracy
8.3.8
Holdover
8.3.8.1
Enable Holdover
8.3.8.1.1
Fixed (Manual) CPout1 Holdover Mode
8.3.8.1.2
Tracked CPout1 Holdover Mode
8.3.8.2
During Holdover
8.3.8.3
Exiting Holdover
8.3.8.4
Holdover Frequency Accuracy and DAC Performance
8.3.9
PLL2 Loop Filter
8.4
Device Functional Modes
8.4.1
DUAL PLL
8.4.1.1
Dual Loop
8.4.1.2
Dual Loop With Cascaded 0-Delay
8.4.1.3
Dual Loop With Nested 0-Delay
8.4.2
Single PLL
8.4.2.1
PLL2 Single Loop
8.4.2.1.1
PLL2 Single Loop With 0-Delay
8.4.2.2
PLL2 With an External VCO
8.4.3
Distribution Mode
8.5
Programming
8.5.1
Recommended Programming Sequence
8.6
Register Maps
8.6.1
Register Map for Device Programming
8.6.2
Device Register Descriptions
8.6.2.1
System Functions
8.6.2.1.1
RESET, SPI_3WIRE_DIS
8.6.2.1.2
POWERDOWN
8.6.2.1.3
ID_DEVICE_TYPE
8.6.2.1.4
ID_PROD
8.6.2.1.5
ID_MASKREV
8.6.2.1.6
ID_VNDR
8.6.2.2
(0x100 to 0x137) Device Clock and SYSREF Clock Output Controls
8.6.2.2.1
DCLKX_Y_DIV
8.6.2.2.2
DCLKX_Y_DDLY
8.6.2.2.3
CLKoutX_Y_PD, CLKoutX_Y_ODL, CLKoutX_Y_IDL, DCLKX_Y_DDLY_PD, DCLKX_Y_DDLY[9:8], DCLKX_Y_DIV[9:8]
8.6.2.2.4
CLKoutX_SRC_MUX, DCLKX_Y_PD, DCLKX_Y_BYP, DCLKX_Y_DCC, DCLKX_Y_POL, DCLKX_Y_HS
8.6.2.2.5
CLKoutY_SRC_MUX, SCLKX_Y_PD, SCLKX_Y_DIS_MODE, SCLKX_Y_POL, SCLKX_Y_HS
8.6.2.2.6
SCLKX_Y_ADLY_EN, SCLKX_Y_ADLY
8.6.2.2.7
SCLKX_Y_DDLY
8.6.2.2.8
CLKoutY_FMT, CLKoutX_FMT
8.6.2.3
SYSREF, SYNC, and Device Config
8.6.2.3.1
VCO_MUX, OSCout_MUX, OSCout_FMT
8.6.2.3.2
SYSREF_REQ_EN, SYNC_BYPASS, SYSREF_MUX
8.6.2.3.3
SYSREF_DIV
8.6.2.3.4
SYSREF_DDLY
8.6.2.3.5
SYSREF_PULSE_CNT
8.6.2.3.6
PLL2_RCLK_MUX, PLL2_NCLK_MUX, PLL1_NCLK_MUX, FB_MUX, FB_MUX_EN
8.6.2.3.7
PLL1_PD, VCO_LDO_PD, VCO_PD, OSCin_PD, SYSREF_GBL_PD, SYSREF_PD, SYSREF_DDLY_PD, SYSREF_PLSR_PD
8.6.2.3.8
DDLYdSYSREF_EN, DDLYdX_EN
8.6.2.3.9
DDLYd_STEP_CNT
8.6.2.3.10
SYSREF_CLR, SYNC_1SHOT_EN, SYNC_POL, SYNC_EN, SYNC_PLL2_DLD, SYNC_PLL1_DLD, SYNC_MODE
8.6.2.3.11
SYNC_DISSYSREF, SYNC_DISX
8.6.2.3.12
PLL1R_SYNC_EN, PLL1R_SYNC_SRC, PLL2R_SYNC_EN, FIN0_DIV2_EN, FIN0_INPUT_TYPE
8.6.2.4
(0x146 - 0x149) CLKIN Control
8.6.2.4.1
CLKin_SEL_PIN_EN, CLKin_SEL_PIN_POL, CLKin2_EN, CLKin1_EN, CLKin0_EN, CLKin2_TYPE, CLKin1_TYPE, CLKin0_TYPE
8.6.2.4.2
CLKin_SEL_AUTO_REVERT_EN, CLKin_SEL_AUTO_EN, CLKin_SEL_MANUAL, CLKin1_DEMUX, CLKin0_DEMUX
8.6.2.4.3
CLKin_SEL0_MUX, CLKin_SEL0_TYPE
8.6.2.4.4
SDIO_RDBK_TYPE, CLKin_SEL1_MUX, CLKin_SEL1_TYPE
8.6.2.5
RESET_MUX, RESET_TYPE
8.6.2.6
(0x14B - 0x152) Holdover
8.6.2.6.1
LOS_TIMEOUT, LOS_EN, TRACK_EN, HOLDOVER_FORCE, MAN_DAC_EN, MAN_DAC[9:8]
8.6.2.6.2
MAN_DAC
8.6.2.6.3
DAC_TRIP_LOW
8.6.2.6.4
DAC_CLK_MULT, DAC_TRIP_HIGH
8.6.2.6.5
DAC_CLK_CNTR
8.6.2.6.6
CLKin_OVERRIDE, HOLDOVER_EXIT_MODE, HOLDOVER_PLL1_DET, LOS_EXTERNAL_INPUT, HOLDOVER_VTUNE_DET, CLKin_SWITCH_CP_TRI, HOLDOVER_EN
8.6.2.6.7
HOLDOVER_DLD_CNT
8.6.2.7
(0x153 - 0x15F) PLL1 Configuration
8.6.2.7.1
CLKin0_R
8.6.2.7.2
CLKin1_R
8.6.2.7.3
CLKin2_R
8.6.2.7.4
PLL1_N
8.6.2.7.5
PLL1_WND_SIZE, PLL1_CP_TRI, PLL1_CP_POL, PLL1_CP_GAIN
8.6.2.7.6
PLL1_DLD_CNT
8.6.2.7.7
HOLDOVER_EXIT_NADJ
8.6.2.7.8
PLL1_LD_MUX, PLL1_LD_TYPE
8.6.2.8
(0x160 - 0x16E) PLL2 Configuration
8.6.2.8.1
PLL2_R
8.6.2.8.2
PLL2_P, OSCin_FREQ, PLL2_REF_2X_EN
8.6.2.8.3
PLL2_N_CAL
8.6.2.8.4
PLL2_N
8.6.2.8.5
PLL2_WND_SIZE, PLL2_CP_GAIN, PLL2_CP_POL, PLL2_CP_TRI
8.6.2.8.6
PLL2_DLD_CNT
8.6.2.8.7
PLL2_LD_MUX, PLL2_LD_TYPE
8.6.2.9
(0x16F - 0x555) Misc Registers
8.6.2.9.1
PLL2_PRE_PD, PLL2_PD, FIN0_PD
8.6.2.9.2
PLL1R_RST
8.6.2.9.3
CLR_PLL1_LD_LOST, CLR_PLL2_LD_LOST
8.6.2.9.4
RB_PLL1_LD_LOST, RB_PLL1_LD, RB_PLL2_LD_LOST, RB_PLL2_LD
8.6.2.9.5
RB_DAC_VALUE (MSB), RB_CLKinX_SEL, RB_CLKinX_LOS
8.6.2.9.6
RB_DAC_VALUE
8.6.2.9.7
RB_HOLDOVER
8.6.2.9.8
SPI_LOCK
9
Application and Implementation
9.1
Application Information
9.1.1
Treatment of Unused Pins
9.1.2
Digital Lock Detect Frequency Accuracy
9.1.2.1
Minimum Lock Time Calculation Example
9.1.3
Driving CLKIN AND OSCIN Inputs
9.1.3.1
Driving CLKIN and OSCIN PINS With a Differential Source
9.1.3.2
Driving CLKIN Pins With a Single-Ended Source
9.1.4
Termination and Use of Clock Output Drivers
9.1.4.1
Termination for DC Coupled Differential Operation
9.1.4.2
Termination for AC Coupled Differential Operation
9.1.4.3
Termination for Single-Ended Operation
9.1.5
Output Termination and Biasing
9.1.5.1
LVPECL
9.1.5.2
LVDS/HSDS
9.1.5.3
CML
9.1.6
OSCin Doubler for Best Phase Noise Performance
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Device Selection
9.2.2.2
Device Configuration and Simulation
9.2.2.3
Device Setup
9.2.3
Application Curve
9.3
System Examples
9.3.1
System Level Diagram
9.4
Power Supply Recommendations
9.4.1
Current Consumption
9.5
Layout
9.5.1
Thermal Management
9.5.2
Layout Guidelines
9.5.3
Layout Example
10
Device and Documentation Support
10.1
Device Support
10.1.1
Development Support
10.1.1.1
Clock Tree Architect
10.1.1.2
PLLatinum Simulation
10.1.1.3
TICS Pro
10.2
Documentation Support
10.2.1
Related Documentation
10.3
ドキュメントの更新通知を受け取る方法
10.4
サポート・リソース
10.5
Trademarks
10.6
静電気放電に関する注意事項
10.7
用語集
11
Mechanical, Packaging, and Orderable Information
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
PAP|64
MPQF071C
サーマルパッド・メカニカル・データ
PAP|64
PPTD060M
発注情報
jajso87_oa
Data Sheet
LMK04368-EP 超低ノイズ、JESD204B/C 対応、デュアル・ループ・クロック・ジッタ・クリーナ
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