LMKDB1204
- LP-HCSL clock MUX that support:
- PCIe Gen 1 to Gen 7
- CC (Common Clock) and IR (Independent Reference) PCIe architectures
- Input clock with or without SSC
- DB2000QL compliant:
- All devices meet DB2000QL specifications
- Extremely low additive jitter:
- 31fs maximum 12kHz to 20MHz RMS additive jitter at 156.25MHz
- 13fs maximum additive jitter for PCIe Gen 4
- 5fs maximum additive jitter for PCIe Gen 5
- 3fs maximum additive jitter for PCIe Gen 6
- 2.1fs maximum additive jitter for PCIe Gen 7
- Fail-safe input
- Flexible power-up sequence
- Automatic output disable
- Individual output enable
- SBI (Side Band Interface) for high-speed output enable or disable
- LOS (Loss of Signal) input detection
- 85Ω or 100Ω output impedance
- 1.8V / 3.3V ± 10% power supply
- –40°C to 105°C ambient temperature
The LMKDB devices are a family of extremely-low-jitter LP-HCSL clock muxes that support PCIe Gen 1 to Gen 7 and are DB2000QL compliant. The devices provide flexible power-up sequence, fail-safe inputs, individual output enable and disable pins, loss of input signal (LOS) detection and automatic output disable features, as well as excellent power supply noise rejection performance.
Both 1.8V and 3.3V power supply voltages are supported.
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 | LMKDB12xx PCIe Gen 1 to Gen 7 Ultra Low Jitter 2 Input Clock MUX datasheet (Rev. A) | PDF | HTML | 2026/4/13 | ||
| Application brief | Mitigating FLEXIO Use Case Risks as Clock Pins Using LMKDB11xxFS Fail-safe Output Clock Buffers | PDF | HTML | 2025/9/26 | |||
| 使用指南 | RC19XXX, 9QXL2001X vs. LMKDB1XXX, CDCDB2000 Drop-In Replacement Guide. | PDF | HTML | 2024/7/18 | |||
| 應用說明 | Clocking for PCIe Applications | PDF | HTML | 2023/11/28 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
LMKDB1204EVM — LMKDB1204 評估模組
LMKDB1204 評估模組 (EVM) 旨在提供快速設定，以評估支援 PCIe Gen 1 至 Gen 6 的 LMKDB1204 LP-HCSL 緩衝器。印刷電路板 (PCB) 包含多個跨接器和 USB 接頭，可啟用 LMKDB1204 及所需的使用者編程和設定。評估模組提供 LMKDB1204 裝置的合規測試、系統原型設計和性能評估的靈活性。
TICSPRO-SW — TICS Pro GUI and Live Programming Tool for Clocking Devices
德州儀器 (TI) 的時鐘及合成器 (TICS) 專業級軟體用於編程具有以下前置字元的產品編號的評估模組 (EVM)：CDC、LMK 和 LMX。這些產品包括鎖相迴路及電壓控制振盪器 (PLL+VCO)、合成器和時鐘裝置。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (REX) | 28 | 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。