Datasheet Texas Instruments LMH2190 — 数据表

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 DESCRIPTION The LMH2190 is a quad channel configurable clock
tree driver which 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,
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. 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 Low-Dropout Regulator
– Low Output Noise Voltage
– 10 mA load Current …