LMK1D1204
- High-performance LVDS clock buffer family with 2 inputs and 4 (2:4) or 8 (2:8) outputs.
- Output frequency up to 2 GHz.
- Supply voltage: 1.71 V to 3.465 V
- Low additive jitter: < maximum 60 fs RMS in 12-kHz to 20-MHz at 156.25 MHz
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Very low phase noise floor: –164 dBc/Hz (typical)
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Very low propagation delay: < 575 ps maximum
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Output skew: 20 ps maximum
- Universal inputs accept LVDS, LVPECL, LVCMOS, LP-HCSL, HCSL and CML inputs
- LVDS reference voltage, V AC_REF, available for capacitive-coupled inputs
- Industrial temperature range: –40°C to 105°C
- Packages available:
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LMK1D1204: 3-mm × 3-mm, 16-pin VQFN (RGT)
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LMK1D1208: 5-mm × 5-mm, 28-pin VQFN (RHD)
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The LMK1D120x clock buffer distributes one of two selectable clock inputs (IN0 and IN1) to 4 or 8 pairs of differential LVDS clock outputs (OUT0 through OUT7) with minimum skew for clock distribution. The LMK1D12x family can accept two clock sources into an input multiplexer. The inputs can either be LVDS, LVPECL, LP-HCSL, HCSL, CML or LVCMOS.
The LMK1D12x is specifically designed for driving 50-Ω transmission lines. In case of driving the inputs in single-ended mode, the appropriate bias voltage as shown in must be applied to the unused negative input pin.
The IN_SEL pin selects the input which is routed to the outputs. If this pin is left open, it disables the outputs (logic low). The part supports a fail-safe function. The device further incorporates an input hysteresis which prevents random oscillation of the outputs in the absence of an input signal.
The device operates in 1.8-V or 2.5-V or 3.3-V supply environment and is characterized from –40°C to 105°C (ambient temperature). The LMK1D12x package variant is shown in the table below:
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技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | LMK1D120x Low Additive Jitter LVDS Buffer datasheet (Rev. B) | PDF | HTML | 2023年 6月 14日 |
設計與開發
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LMK1D1208EVM — 適用於低抖動 2:8 LVDS 扇出緩衝器的 LMK1D1208 評估模組
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
封裝 | 引腳 | 下載 |
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VQFN (RGT) | 16 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點
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。