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LMX2694-EP 具有相位同步功能的 15GHz 宽带 PLLatinum 射频合成器
ZHCSKL5D
November 2019 – March 2022
LMX2694-EP
PRODUCTION DATA
CONTENTS
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LMX2694-EP 具有相位同步功能的 15GHz 宽带 PLLatinum 射频合成器
1
特性
2
应用
3
说明
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 Diagrams
6.8
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Reference Oscillator Input
7.3.2
Reference Path
7.3.2.1
OSCIN Doubler (OSC_2X)
7.3.2.2
Pre-R Divider (PLL_R_PRE)
7.3.2.3
Post-R Divider (PLL_R)
7.3.3
State Machine Clock
7.3.4
PLL Phase Detector and Charge Pump
7.3.5
N Divider and Fractional Circuitry
7.3.6
MUXOUT Pin
7.3.6.1
Serial Data Output for Readback
7.3.6.2
Lock Detect Indicator Set as Type “VCOCal”
7.3.6.3
Lock Detect Indicator Set as Type “Vtune and VCOCal”
7.3.7
VCO (Voltage-Controlled Oscillator)
7.3.7.1
VCO Calibration
7.3.7.2
Determining the VCO Gain
7.3.8
Channel Divider
7.3.9
Output Buffer
7.3.10
Powerdown Modes
7.3.11
Treatment of Unused Pins
7.3.12
Phase Synchronization
7.3.12.1
General Concept
7.3.12.2
Categories of Applications for SYNC
7.3.12.3
Procedure for Using SYNC
7.3.12.4
SYNC Input Pin
7.3.13
Phase Adjust
7.3.14
Fine Adjustments for Phase Adjust and Phase SYNC
7.3.15
SYSREF
7.3.15.1
Programmable Fields
7.3.15.2
Input and Output Pin Formats
7.3.15.2.1
SYSREF Output Format
7.3.15.3
SYSREF Examples
7.3.15.4
SYSREF Procedure
7.4
Device Functional Modes
7.5
Programming
7.5.1
Recommended Initial Power-Up Sequence
7.5.2
Recommended Sequence for Changing Frequencies
7.6
Register Maps
7.6.1
R0 Register (Offset = 0x0) [reset = 0x200C]
7.6.2
R1 Register (Offset = 0x1) [reset = 0x80C]
7.6.3
R2 Register (Offset = 0x2) [reset = 0x500]
7.6.4
R3 Register (Offset = 0x3) [reset = 0x642]
7.6.5
R4 Register (Offset = 0x4) [reset = 0xA43]
7.6.6
R5 Register (Offset = 0x5) [reset = 0xC8]
7.6.7
R6 Register (Offset = 0x6) [reset = 0xC802]
7.6.8
R7 Register (Offset = 0x7) [reset = 0xB2]
7.6.9
R8 Register (Offset = 0x8) [reset = 0x2000]
7.6.10
R9 Register (Offset = 0x9) [reset = 0x604]
7.6.11
R10 Register (Offset = 0xA) [reset = 0x10F8]
7.6.12
R11 Register (Offset = 0xB) [reset = 0x18]
7.6.13
R12 Register (Offset = 0xC) [reset = 0x5001]
7.6.14
R13 Register (Offset = 0xD) [reset = 0x4000]
7.6.15
R14 Register (Offset = 0xE) [reset = 0x1E70]
7.6.16
R15 Register (Offset = 0xF) [reset = 0x64F]
7.6.17
R16 Register (Offset = 0x10) [reset = 0x80]
7.6.18
R17 Register (Offset = 0x11) [reset = 0x96]
7.6.19
R18 Register (Offset = 0x12) [reset = 0x64]
7.6.20
R19 Register (Offset = 0x13) [reset = 0x27B7]
7.6.21
R20 Register (Offset = 0x14) [reset = 0x3048]
7.6.22
R21 Register (Offset = 0x15) [reset = 0x401]
7.6.23
R22 Register (Offset = 0x16) [reset = 0x1]
7.6.24
R23 Register (Offset = 0x17) [reset = 0x7C]
7.6.25
R24 Register (Offset = 0x18) [reset = 0x71A]
7.6.26
R25 Register (Offset = 0x19) [reset = 0x624]
7.6.27
R26 Register (Offset = 0x1A) [reset = 0xDB0]
7.6.28
R27 Register (Offset = 0x1B) [reset = 0x2]
7.6.29
R28 Register (Offset = 0x1C) [reset = 0x488]
7.6.30
R29 Register (Offset = 0x1D) [reset = 0x318C]
7.6.31
R30 Register (Offset = 0x1E) [reset = 0x318C]
7.6.32
R31 Register (Offset = 0x1F) [reset = 0xC3EC]
7.6.33
R32 Register (Offset = 0x20) [reset = 0x393]
7.6.34
R33 Register (Offset = 0x21) [reset = 0x1E21]
7.6.35
R34 Register (Offset = 0x22) [reset = 0x10]
7.6.36
R35 Register (Offset = 0x23) [reset = 0x4]
7.6.37
R36 Register (Offset = 0x24) [reset = 0x70]
7.6.38
R37 Register (Offset = 0x25) [reset = 0x205]
7.6.39
R38 Register (Offset = 0x26) [reset = 0xFFFF]
7.6.40
R39 Register (Offset = 0x27) [reset = 0xFFFF]
7.6.41
R40 Register (Offset = 0x28) [reset = 0x0]
7.6.42
R41 Register (Offset = 0x29) [reset = 0x0]
7.6.43
R42 Register (Offset = 0x2A) [reset = 0x0]
7.6.44
R43 Register (Offset = 0x2B) [reset = 0x0]
7.6.45
R44 Register (Offset = 0x2C) [reset = 0x22A2]
7.6.46
R45 Register (Offset = 0x2D) [reset = 0xC622]
7.6.47
R46 Register (Offset = 0x2E) [reset = 0x7F0]
7.6.48
R47 Register (Offset = 0x2F) [reset = 0x300]
7.6.49
R48 Register (Offset = 0x30) [reset = 0x3E0]
7.6.50
R49 Register (Offset = 0x31) [reset = 0x4180]
7.6.51
R50 Register (Offset = 0x32) [reset = 0x80]
7.6.52
R51 Register (Offset = 0x33) [reset = 0x80]
7.6.53
R52 Register (Offset = 0x34) [reset = 0x420]
7.6.54
R53 Register (Offset = 0x35) [reset = 0x0]
7.6.55
R54 Register (Offset = 0x36) [reset = 0x0]
7.6.56
R55 Register (Offset = 0x37) [reset = 0x0]
7.6.57
R56 Register (Offset = 0x38) [reset = 0x0]
7.6.58
R57 Register (Offset = 0x39) [reset = 0x0]
7.6.59
R58 Register (Offset = 0x3A) [reset = 0x8001]
7.6.60
R59 Register (Offset = 0x3B) [reset = 0x1]
7.6.61
R60 Register (Offset = 0x3C) [reset = 0x3E8]
7.6.62
R61 Register (Offset = 0x3D) [reset = 0xA8]
7.6.63
R62 Register (Offset = 0x3E) [reset = 0xAE]
7.6.64
R63 Register (Offset = 0x3F) [reset = 0x0]
7.6.65
R64 Register (Offset = 0x40) [reset = 0x1388]
7.6.66
R65 Register (Offset = 0x41) [reset = 0x0]
7.6.67
R66 Register (Offset = 0x42) [reset = 0x140]
7.6.68
R67 Register (Offset = 0x43) [reset = 0x0]
7.6.69
R68 Register (Offset = 0x44) [reset = 0x3E8]
7.6.70
R69 Register (Offset = 0x45) [reset = 0x0]
7.6.71
R70 Register (Offset = 0x46) [reset = 0xC350]
7.6.72
R71 Register (Offset = 0x47) [reset = 0x80]
7.6.73
R72 Register (Offset = 0x48) [reset = 0x1]
7.6.74
R73 Register (Offset = 0x49) [reset = 0x3F]
7.6.75
R74 Register (Offset = 0x4A) [reset = 0x0]
7.6.76
R75 Register (Offset = 0x4B) [reset = 0x800]
7.6.77
R76 Register (Offset = 0x4C) [reset = 0xC]
7.6.78
R77 Register (Offset = 0x4D) [reset = 0x0]
7.6.79
R78 Register (Offset = 0x4E) [reset = 0x64]
7.6.80
R79 Register (Offset = 0x4F) [reset = 0x0]
7.6.81
R80 Register (Offset = 0x50) [reset = 0x0]
7.6.82
R81 Register (Offset = 0x51) [reset = 0x0]
7.6.83
R82 Register (Offset = 0x52) [reset = 0x0]
7.6.84
R83 Register (Offset = 0x53) [reset = 0x0]
7.6.85
R84 Register (Offset = 0x54) [reset = 0x0]
7.6.86
R85 Register (Offset = 0x55) [reset = 0x0]
7.6.87
R86 Register (Offset = 0x56) [reset = 0x0]
7.6.88
R87 Register (Offset = 0x57) [reset = 0x0]
7.6.89
R88 Register (Offset = 0x58) [reset = 0x0]
7.6.90
R89 Register (Offset = 0x59) [reset = 0x0]
7.6.91
R90 Register (Offset = 0x5A) [reset = 0x0]
7.6.92
R91 Register (Offset = 0x5B) [reset = 0x0]
7.6.93
R92 Register (Offset = 0x5C) [reset = 0x0]
7.6.94
R93 Register (Offset = 0x5D) [reset = 0x0]
7.6.95
R94 Register (Offset = 0x5E) [reset = 0x0]
7.6.96
R95 Register (Offset = 0x5F) [reset = 0x0]
7.6.97
R96 Register (Offset = 0x60) [reset = 0x0]
7.6.98
R97 Register (Offset = 0x61) [reset = 0x0]
7.6.99
R98 Register (Offset = 0x62) [reset = 0x0]
7.6.100
R99 Register (Offset = 0x63) [reset = 0x0]
7.6.101
R100 Register (Offset = 0x64) [reset = 0x0]
7.6.102
R101 Register (Offset = 0x65) [reset = 0x0]
7.6.103
R102 Register (Offset = 0x66) [reset = 0x0]
7.6.104
R103 Register (Offset = 0x67) [reset = 0x0]
7.6.105
R104 Register (Offset = 0x68) [reset = 0x0]
7.6.106
R105 Register (Offset = 0x69) [reset = 0x440]
7.6.107
R106 Register (Offset = 0x6A) [reset = 0x7]
7.6.108
R107 Register (Offset = 0x6B) [reset = 0x0]
7.6.109
R108 Register (Offset = 0x6C) [reset = 0x0]
7.6.110
R109 Register (Offset = 0x6D) [reset = 0x0]
7.6.111
R110 Register (Offset = 0x6E) [reset = 0x0]
7.6.112
R111 Register (Offset = 0x6F) [reset = 0x0]
7.6.113
R112 Register (Offset = 0x70) [reset = 0x0]
7.6.114
R113 Register (Offset = 0x71) [reset = 0x0]
7.6.115
R114 Register (Offset = 0x72) [reset = 0x0]
8
Application and Implementation
8.1
Application Information
8.1.1
OSCIN Configuration
8.1.2
OSCIN Slew Rate
8.1.3
RF Output Buffer Power Control
8.1.4
RF Output Buffer Pullup
8.1.4.1
Resistor Pullup
8.1.4.2
Inductor Pullup
8.1.4.3
Combination Pullup
8.1.5
RF Output Treatment for the Complimentary Side
8.1.5.1
Single-Ended Termination of Unused Output
8.1.5.2
Differential Termination
8.1.6
External Loop Filter
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
Development Support
11.2
Documentation Support
11.2.1
Related Documentation
11.3
接收文档更新通知
11.4
支持资源
11.5
Trademarks
11.6
Electrostatic Discharge Caution
11.7
术语表
12
Mechanical, Packaging, and Orderable Information
重要声明
封装选项
请参考 PDF 数据表获取器件具体的封装图。
机械数据 (封装 | 引脚)
RTC|48
散热焊盘机械数据 (封装 | 引脚)
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