ZHCSHN9A
February 2018 – April 2018
LMK05028
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
简化方框图
4
修订历史记录
5
说明 (续)
6
Pin Configuration and Functions
Pin Functions
6.1
Device Start-Up Modes
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 Diagrams
7.7
Typical Characteristics
8
Parameter Measurement Information
8.1
Output Clock Test Configurations
9
Detailed Description
9.1
Overview
9.1.1
ITU-T G.8262 (SyncE) Standards Compliance
9.2
Functional Block Diagrams
9.2.1
PLL Architecture Overview
9.2.2
3-Loop Mode
9.2.2.1
PLL Output Clock Phase Noise Analysis in 3-Loop Mode
9.2.3
2-Loop REF-DPLL Mode
9.2.4
2-Loop TCXO-DPLL Mode
9.2.5
PLL Configurations for Common Applications
9.3
Feature Description
9.3.1
Oscillator Input (XO_P/N)
9.3.2
TCXO/OCXO Input (TCXO_IN)
9.3.3
Reference Inputs (INx_P/N)
9.3.4
Clock Input Interfacing and Termination
9.3.5
Reference Input Mux Selection
9.3.5.1
Automatic Input Selection
9.3.5.2
Manual Input Selection
9.3.6
Hitless Switching
9.3.7
Gapped Clock Support on Reference Inputs
9.3.8
Input Clock and PLL Monitoring, Status, and Interrupts
9.3.8.1
XO Input Monitoring
9.3.8.2
TCXO Input Monitoring
9.3.8.3
Reference Input Monitoring
9.3.8.3.1
Reference Validation Timer
9.3.8.3.2
Amplitude Monitor
9.3.8.3.3
Missing Pulse Monitor (Late Detect)
9.3.8.3.4
Runt Pulse Monitor (Early Detect)
9.3.8.3.5
Frequency Monitoring
9.3.8.3.6
Phase Valid Monitor for 1-PPS Inputs
9.3.8.4
PLL Lock Detectors
9.3.8.5
Tuning Word History
9.3.8.6
Status Outputs
9.3.8.7
Interrupt
9.3.9
PLL Channels
9.3.9.1
PLL Frequency Relationships
9.3.9.2
Analog PLL (APLL)
9.3.9.3
APLL XO Doubler
9.3.9.4
APLL Phase Frequency Detector (PFD) and Charge Pump
9.3.9.5
APLL Loop Filter
9.3.9.6
APLL Voltage Controlled Oscillator (VCO)
9.3.9.6.1
VCO Calibration
9.3.9.7
APLL VCO Post-Dividers (P1, P2)
9.3.9.8
APLL Fractional N Divider (N) With SDM
9.3.9.9
REF-DPLL Reference Divider (R)
9.3.9.10
TCXO/OCXO Input Doubler and M Divider
9.3.9.11
TCXO Mux
9.3.9.12
REF-DPLL and TCXO-DPLL Time-to-Digital Converter (TDC)
9.3.9.13
REF-DPLL and TCXO-DPLL Loop Filter
9.3.9.14
REF-DPLL and TCXO-DPLL Feedback Dividers
9.3.10
Output Clock Distribution
9.3.11
Output Channel Muxes
9.3.11.1
TCXO/Ref Bypass Mux
9.3.12
Output Dividers
9.3.13
Clock Outputs (OUTx_P/N)
9.3.13.1
AC-Differential Output (AC-DIFF)
9.3.13.2
HCSL Output
9.3.13.3
LVCMOS Output (1.8 V, 2.5 V)
9.3.13.4
Output Auto-Mute During LOL or LOS
9.3.14
Glitchless Output Clock Start-Up
9.3.15
Clock Output Interfacing and Termination
9.3.16
Output Synchronization (SYNC)
9.3.17
Zero-Delay Mode (ZDM) Configuration
9.3.18
PLL Cascading With Internal VCO Loopback
9.4
Device Functional Modes
9.4.1
Device Start-Up Modes
9.4.1.1
EEPROM Mode
9.4.1.2
ROM Mode
9.4.2
PLL Operating Modes
9.4.2.1
Free-Run Mode
9.4.2.2
Lock Acquisition
9.4.2.3
Locked Mode
9.4.2.4
Holdover Mode
9.4.3
PLL Start-Up Sequence
9.4.4
Digitally-Controlled Oscillator (DCO) Mode
9.4.4.1
DCO Frequency Step Size
9.4.4.2
DCO Direct-Write Mode
9.4.5
Zero-Delay Mode (ZDM)
9.4.6
Cascaded PLL Operation
9.5
Programming
9.5.1
Interface and Control
9.5.2
I2C Serial Interface
9.5.2.1
I2C Block Register Transfers
9.5.3
SPI Serial Interface
9.5.3.1
SPI Block Register Transfer
9.5.4
Register Map Generation
9.5.5
General Register Programming Sequence
9.5.6
EEPROM Programming Flow
9.5.6.1
EEPROM Programming Using Register Commit (Method #1)
9.5.6.1.1
Write SRAM Using Register Commit
9.5.6.1.2
Program EEPROM
9.5.6.2
EEPROM Programming Using Direct SRAM Writes (Method #2)
9.5.6.2.1
Write SRAM Using Direct Writes
9.5.7
Read SRAM
9.5.8
Read EEPROM
9.5.9
EEPROM Start-Up Mode Default Configuration
9.6
Register Maps
10
Application and Implementation
10.1
Application Information
10.1.1
Device Start-Up Sequence
10.1.2
Power Down (PDN) Pin
10.1.3
Power Rail Sequencing, Power Supply Ramp Rate, and Mixing Supply Domains
10.1.3.1
Mixing Supplies
10.1.3.2
Power-On Reset (POR) Circuit
10.1.3.3
Powering Up From a Single-Supply Rail
10.1.3.4
Power Up From Split-Supply Rails
10.1.3.5
Non-Monotonic or Slow Power-Up Supply Ramp
10.1.4
Slow or Delayed XO Start-Up
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.3
Application Curves
10.3
Do's and Don'ts
11
Power Supply Recommendations
11.1
Power Supply Bypassing
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
12.3
Thermal Reliability
13
器件和文档支持
13.1
器件支持
13.1.1
时钟架构
13.1.2
TICS Pro
13.2
文档支持
13.2.1
相关文档
13.3
接收文档更新通知
13.4
社区资源
13.5
商标
13.6
静电放电警告
13.7
术语表
14
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
RGC|64
MPQF125F
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcshn9a_oa
zhcshn9a_pm
1
特性
两个独立 PLL 通道具有如下特性:
输出 ≥ 100MHz 时,抖动为 150fs RMS
频率为 122.88MHz 时,在 100Hz 偏移频率处的相位噪声为 –112dBc/Hz
无中断切换:50ps 相位瞬态(采用相位抑制)
具有快速锁定功能的可编程环路带宽
使用低成本 TCXO/OCXO 实现符合标准的同步和保持模式
任何输入到任何输出频率转换
四个参考时钟输入
基于优先级的输入选择
在缺失参考时实现数字保持
具有可编程驱动器的八个时钟输出
多达 6 个不同的输出频率
AC-LVDS、AC-CML、AC-LVPECL、HCSL 和 1.8V 或 2.5V LVCMOS 输出格式
加电后自定义时钟的 EEPROM/ROM
(2)
灵活的配置选项
输入和输出为 1Hz (1PPS) 至 750MHz
XO:10MHz 至 100MHz,TCXO:10MHz 至 54MHz
DCO 模式:步长 < 1ppt,可实现精确的频率和相位控制(IEEE 1588 从运行)
零延迟,可实现确定性相位偏移
稳健的时钟监控和状态
I
2
C 或 SPI 接口
出色的电源噪声抑制 (PSNR) 性能
3.3V 电源,提供 1.8V、2.5V 或 3.3V 输出
工业温度范围:-40°C 至 +85°C
千亿体育app官网登录(中国)官方网站IOS/安卓通用版/手机APP
|
米乐app下载官网(中国)|ios|Android/通用版APP最新版
|
米乐|米乐·M6(中国大陆)官方网站
|
千亿体育登陆地址
|
华体会体育(中国)HTH·官方网站
|
千赢qy国际_全站最新版千赢qy国际V6.2.14安卓/IOS下载
|
18新利网v1.2.5|中国官方网站
|
bob电竞真人(中国官网)安卓/ios苹果/电脑版【1.97.95版下载】
|
千亿体育app官方下载(中国)官方网站IOS/安卓/手机APP下载安装
|