JAJSDN8C
March 2017 – April 2019
LMX2594
PRODUCTION DATA.
1
特長
2
アプリケーション
3
概要
Device Images
概略回路図
4
改訂履歴
5
概要(続き)
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Reference Oscillator Input
8.3.2
Reference Path
8.3.2.1
OSCin Doubler (OSC_2X)
8.3.2.2
Pre-R Divider (PLL_R_PRE)
8.3.2.3
Programmable Multiplier (MULT)
8.3.2.4
Post-R Divider (PLL_R)
8.3.2.5
State Machine Clock
8.3.3
PLL Phase Detector and Charge Pump
8.3.4
N-Divider and Fractional Circuitry
8.3.5
MUXout Pin
8.3.5.1
Lock Detect
8.3.5.2
Readback
8.3.6
VCO (Voltage-Controlled Oscillator)
8.3.6.1
VCO Calibration
8.3.6.2
Determining the VCO Gain
8.3.7
Channel Divider
8.3.8
Output Buffer
8.3.9
Power-Down Modes
8.3.10
Phase Synchronization
8.3.10.1
General Concept
8.3.10.2
Categories of Applications for SYNC
8.3.10.3
Procedure for Using SYNC
8.3.10.4
SYNC Input Pin
8.3.11
Phase Adjust
8.3.12
Fine Adjustments for Phase Adjust and Phase SYNC
8.3.13
Ramping Function
8.3.13.1
Manual Pin Ramping
8.3.13.1.1
Manual Pin Ramping Example
8.3.13.2
Automatic Ramping
8.3.13.2.1
Automatic Ramping Example (Triangle Wave)
8.3.14
SYSREF
8.3.14.1
Programmable Fields
8.3.14.2
Input and Output Pin Formats
8.3.14.2.1
Input Format for SYNC and SysRefReq Pins
8.3.14.2.2
SYSREF Output Format
8.3.14.3
Examples
8.3.14.4
SYSREF Procedure
8.3.15
SysRefReq Pin
8.4
Device Functional Modes
8.5
Programming
8.5.1
Recommended Initial Power-Up Sequence
8.5.2
Recommended Sequence for Changing Frequencies
8.5.3
General Programming Requirements
8.6
Register Maps
8.6.1
General Registers R0, R1, & R7
Table 24.
Field Descriptions
8.6.2
Input Path Registers
Table 25.
Field Descriptions
8.6.3
Charge Pump Registers (R13, R14)
Table 26.
Field Descriptions
8.6.4
VCO Calibration Registers
Table 27.
Field Descriptions
8.6.5
N Divider, MASH, and Output Registers
Table 28.
Field Descriptions
8.6.6
SYNC and SysRefReq Input Pin Register
Table 29.
Field Descriptions
8.6.7
Lock Detect Registers
Table 30.
Field Descriptions
8.6.8
MASH_RESET
Table 31.
Field Descriptions
8.6.9
SysREF Registers
Table 32.
Field Descriptions
8.6.10
CHANNEL Divider Registers
Table 33.
Field Descriptions
8.6.11
Ramping and Calibration Fields
Table 34.
Field Descriptions
8.6.12
Ramping Registers
8.6.12.1
Ramp Limits
Table 35.
Field Descriptions
8.6.12.2
Ramping Triggers, Burst Mode, and RAMP0_RST
Table 36.
Field Descriptions
8.6.12.3
Ramping Configuration
Table 37.
Field Descriptions
8.6.13
Readback Registers
Table 38.
Field Descriptions
9
Application and Implementation
9.1
Application Information
9.1.1
OSCin Configuration
9.1.2
OSCin Slew Rate
9.1.3
RF Output Buffer Power Control
9.1.4
RF Output Buffer Pullup
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curve
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
デバイスおよびドキュメントのサポート
12.1
デバイス・サポート
12.1.1
デベロッパー・ネットワークの製品に関する免責事項
12.1.2
開発サポート
12.2
ドキュメントのサポート
12.2.1
関連資料
12.3
ドキュメントの更新通知を受け取る方法
12.4
コミュニティ・リソース
12.5
商標
12.6
静電気放電に関する注意事項
12.7
Glossary
13
メカニカル、パッケージ、および注文情報
7.3
Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
NOM
MAX
UNIT
V
CC
Power supply voltage
3.15
3.3
3.45
V
T
A
Ambient temperature
–40
25
85
°C
T
J
Junction temperature
125
°C