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LMH2190 Datasheet

Part Number LMH2190
Manufacturers National Semiconductor Corporation
Logo National Semiconductor Corporation
Description Quad Channel 26 MHz Clock Tree Driver
Datasheet LMH2190 DatasheetLMH2190 Datasheet (PDF)

LMH2190 Quad Channel 26 MHz Clock Tree Driver with I2C Interface www.DataSheet4U.com PRELIMINARY LMH2190 June 4, 2009 Quad Channel 26 MHz Clock Tree Driver with I2C Interface General Description The LMH2190 is a quad channel configurable clock distribution device which supplies the system clock to peripherals in mobile handsets or other applications. It provides a solution to clocking issues such as drive capability for fanout or longer traces, protection of the master clock from varying lo.

  LMH2190   LMH2190






Part Number LMH2190
Manufacturers Texas Instruments
Logo Texas Instruments
Description Clock Tree Driver
Datasheet LMH2190 DatasheetLMH2190 Datasheet (PDF)

LMH2190 www.ti.com SNAS473H – JUNE 2009 – REVISED MAY 2013 LMH2190 Quad Channel 27 MHz Clock Tree Driver with I2C Interface Check for Samples: LMH2190 FEATURES 1 •2 1 Input Clock, 4 Output Clocks • Supports both Square or Sine Wave Input • 1.8V Square Wave Clock Outputs • Skewed Clock Outputs • Independent Clock Request • High Isolation of Supply Noise to Clock Input • High Output to Output Isolation • Output Drive up to 50 pF • EMI Controlled Output Edges and EMI Filtering • Integrated 1.8V .

  LMH2190   LMH2190







Quad Channel 26 MHz Clock Tree Driver

LMH2190 Quad Channel 26 MHz Clock Tree Driver with I2C Interface www.DataSheet4U.com PRELIMINARY LMH2190 June 4, 2009 Quad Channel 26 MHz Clock Tree Driver with I2C Interface General Description The LMH2190 is a quad channel configurable clock distribution device which supplies the system clock to peripherals in mobile handsets or other applications. It provides a solution to clocking issues such as drive capability for fanout or longer traces, protection of the master clock from varying loads and frequency pulling effects, isolation buffering 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 LMH2190 can be clocked up to 26 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 I2C serial interface can be used to override the default configuration of the device to optimize the LMH2190 for the application. Some of these programmable features include setting the polarity of both the clock and the clock request inputs. In addition, the clock outputs have programmable output drive current to optimize for the connected load. EMI switching noise can be controlled by configuring output drive and skew settings. The LMH2190 quad clock distr.


2009-07-13 : 44BC374    LT4356-1    LT4356-3    LT4356-2    LM25011    MIC22700    ADM2914    SDA-1000    SDA-2000    SUF-8533   


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