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LMKDB1202

現行

適用 PCIe Gen 1 至 Gen 6 的 2 輸入 2 輸出 LP-HCSL 時脈多工器

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產品規格表

LMKDB1202

現行
產品規格表 立即訂購

產品詳細資料

Function Clock buffer, Differential Additive RMS jitter (typ) (fs) 19.2 Output frequency (max) (MHz) 400 Number of outputs 2 Output supply voltage (V) 1.8, 3.3 Core supply voltage (V) 1.8, 3.3 Output skew (ps) 50 Features 2:2 fanout, Individual output enable control, OE# control, SMBus control, Side-Band Interface Operating temperature range (°C) -40 to 105 Rating Catalog Output type LP-HCSL Input type LP-HCSL
Function Clock buffer, Differential Additive RMS jitter (typ) (fs) 19.2 Output frequency (max) (MHz) 400 Number of outputs 2 Output supply voltage (V) 1.8, 3.3 Core supply voltage (V) 1.8, 3.3 Output skew (ps) 50 Features 2:2 fanout, Individual output enable control, OE# control, SMBus control, Side-Band Interface Operating temperature range (°C) -40 to 105 Rating Catalog Output type LP-HCSL Input type LP-HCSL
VQFN (REY) 20 9 mm² 3 x 3
  • LP-HCSL clock buffer and clock MUX that support:
    • PCIe Gen 1 to Gen 6
    • CC (Common Clock) and IR (Independent Reference) PCIe architectures
    • Input clock with or without SSC
  • DB2000QL compliant:
    • All devices meet DB2000QL specifications
    • LMKDB1120 is pin-compatible to DB2000QL
  • 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
  • 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
  • LP-HCSL clock buffer and clock MUX that support:
    • PCIe Gen 1 to Gen 6
    • CC (Common Clock) and IR (Independent Reference) PCIe architectures
    • Input clock with or without SSC
  • DB2000QL compliant:
    • All devices meet DB2000QL specifications
    • LMKDB1120 is pin-compatible to DB2000QL
  • 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
  • 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 buffers and MUX that support PCIe Gen 1 to Gen 6 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 supply voltages are supported. For LMKDB1120, 1.8V power supply saves 250mW power compared to 3.3V.

The LMKDB devices are a family of extremely-low-jitter LP-HCSL buffers and MUX that support PCIe Gen 1 to Gen 6 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 supply voltages are supported. For LMKDB1120, 1.8V power supply saves 250mW power compared to 3.3V.
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類型 標題 日期
* Data sheet LMKDB1xxx PCIe Gen 1 to Gen 6 Ultra Low Jitter 1:20, 1:8, 1:4, 1:2, 2:4, 2:2 LP-HCSL Clock Buffer and Clock MUX datasheet (Rev. D) PDF | HTML 2024年 6月 19日
User guide RC19XXX, 9QXL2001X vs. LMKDB1XXX, CDCDB2000 Drop-In Replacement Guide. PDF | HTML 2024年 7月 18日
EVM User's guide LMKDB1x02 Evaluation Module User's Guide PDF | HTML 2024年 6月 26日
Certificate LMKDB1202EVM Declaration of Conformity (DoC) 2024年 6月 13日
Application note Clocking for PCIe Applications PDF | HTML 2023年 11月 28日

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開發板

LMKDB1202EVM — LMKDB1202 評估模組

LMKDB1202 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 LMKDB1202 LP-HCSL 緩衝器。印刷電路板 (PCB) 包含多個跨接器，可啟用 LMKDB1202 使用者編程和設定。EVM 提供 LMKDB1202 裝置的合規測試、系統原型設計和性能評估的靈活性。
使用指南: PDF | HTML
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模擬型號

LMKDB1XXX IBIS Model

SNAM297.ZIP (58 KB) - IBIS Model
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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