Datasheet Texas Instruments LMH2191TME/NOPB — 数据表

LMH2191
www.ti.com SNAS485D – JULY 2010 – REVISED MAY 2013 LMH2191 Dual Channel 52 MHz Clock Tree Driver
Check for Samples: LMH2191 FEATURES DESCRIPTION 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. 1 2 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 …