LMK5C33414A
- Ultra-low jitter BAW VCO based Wireless clocks
- 40fs typical/ 57fs maximum RMS jitter at 491.52MHz
- 50fs typical/ 62fs maximum RMS jitter at 245.76MHz
- Three high-performance Digital Phase Locked Loops (DPLLs) with paired Analog
Phase Locked Loops (APLLs)
- Programmable DPLL loop bandwidth from 1mHz to 4kHz
- < 1ppt DCO frequency adjustment step size
- Four
differential or single-ended DPLL inputs
- 1Hz (1PPS) to 800MHz input frequency
- Digital holdover and hitless switching
- 14
differential outputs with programmable HSDS, AC-LVPECL, LVDS, and HSCL formats
- Up to 18 total frequency outputs when configured with 6 LVCMOS frequency outputs on OUT[1:0]_P/N, GPIO1, and GPIO2 and 12 differential outputs on OUT[13:2]_P/N
- 1Hz (1PPS) to 1250MHz output frequency with programmable swing and common mode
- PCIe Gen 1 to 6 compliant
- I2C, 3-wire SPI, or 4-wire SPI
- –40°C to 85°C operating temperature
The LMK5C33414A is a high-performance network synchronizer and jitter cleaner designed to meet the stringent requirements of wireless communications and infrastructure applications.
The device integrates three DPLLs and three APLLs to provide hitless switching and jitter attenuation with programmable loop bandwidth (LBW) and one external loop filter capacitor, maximizing flexibility and ease of use.
APLL3 features an ultra-high performance PLL with TI’s proprietary Bulk Acoustic Wave (BAW) technology. The BAW APLL can generate 491.52MHz output clocks with 40fs typical / 60fs maximum RMS jitter (12kHz to 20MHz) irrespective of the DPLL reference input frequency and jitter characteristics. APLL2 and APLL1 (conventional LC VCOs) provide options for a second or third frequency and/or synchronization domain.
Reference validation circuitry monitors the DPLL reference inputs and automatically performs a hitless switch when the inputs are detected or lost. Zero-Delay Mode (ZDM) provides control over the phase relationship between inputs and outputs.
The device is fully programmable through I2C or SPI. The integrated EEPROM can be used to customize system start-up clocks. The device also features factory default ROM profiles as fallback options.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LMK5C33414A 3-DPLL 3-APLL 4-IN 14-OUT Network Synchronizer With JED204B/JED204C and BAW VCO for Wireless Communications datasheet (Rev. A) | PDF | HTML | 2025/2/5 | ||
| 應用說明 | Termination Guidelines for Differential and Single-Ended Signals | PDF | HTML | 2025/12/10 | |||
| 應用說明 | The Debug Guide for Network Synchronizers (Digital and Analog Phase-Locked Loops) | PDF | HTML | 2025/11/21 | |||
| 使用指南 | LMK5C33414A Programmer's Guide (Rev. A) | PDF | HTML | 2025/11/17 | |||
| 應用說明 | Oscillator Power Considerations for PLL Devices | PDF | HTML | 2025/10/30 |
設計與開發
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LMK5C33414AEVM — LMK5C33414A 評估模組
LMK5C33414A 評估模組 (EVM) 是 LMK5C33414A 網路時鐘產生器和同步器。EVM 可用於裝置評估、合規測試和系統原型設計。 LMK5C33414A 整合了三個類比 PLL (APLL)、三個數位 PLL (DPLL) 與可編程迴路頻寬。EVM 包括 SMA 連接器，用於時鐘輸入、振盪器輸入和時鐘輸出，以便與 50Ω 測試設備介接。板載 TCXO 可用來對 LMK5C33414A 操作時的自由運轉、鎖定或維持模式進行評估。EVM 可透過板載 USB 微控制器 (MCU) 介面，使用配備 TICS Pro 軟體圖形使用者介面 (GUI) 的 PC 進行配置。TICS (...)
CLOCK-PERFDATA-DESIGN — Clock performance data and register settings for clock generators, network synchronizers, jitter cleaners, and other clocking devices.
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGC) | 64 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。