LMH2191
- One Input Clock, Two Output Clocks
- 1.8V Square Wave Clock Outputs
- Inverted Clock Outputs
- Independent Clock Requests
- High Isolation of Supply Noise to Clock Input
- High Output-to-Output Isolation
- Integrated 1.8V Low-Dropout Regulator
- Low Output-Noise Voltage
- 10 mA Load Current
- EMI Filtering
- Ultra Low Standby Current
- VBAT Range = 2.5V to 5.5V
- 8-Bump DSBGA Package
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The LMH2191 is a dual-channel clock tree driver that supplies a digital system clock to peripherals in mobile handsets or other applications. It provides a solution to clocking issues such as limited drive capability for fanout or longer traces. It also provides protection of the master clock from varying loads and frequency pulling effects, isolation from noisy modules, and crosstalk isolation. It has very low phase noise which enables it to drive sensitive modules such as Wireless LAN and Bluetooth.
The LMH2191 can be clocked up to 52 MHz and has an independent clock request pin for each clock output which allows the peripheral to control the clock. It features an integrated LDO which provides an ultra low-noise voltage supply with 10 mA external load current which can be used to supply the TCXO or other clock source. The LMH2191 dual clock distributor is offered in a tiny 1.61 mm x 1.063 mm 8-bump DSBGA package. Its small size and low supply current make it ideal for portable applications.
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 | LMH2191 Dual Channel 52 MHz Clock Tree Driver datasheet (Rev. D) | 2013/5/2 |
設計與開發
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LMH2191TMEVAL — 雙通道 52 MHz 時鐘樹驅動器
The LMH2191 is a dual-channel clock tree driver that supplies a digital system clock to peripherals in mobile handsets or other applications. It provides a solution to clocking issues such as limited drive capability for fanout or longer traces. It also provides protection of the master clock from (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YFX) | 8 | 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。