LMV115 Datasheet, PDF (1/13 Pages) National Semiconductor (TI) – GSM Baseband 30MHz 2.8V Oscillator Buffer

December 2003
LMV115
GSM Baseband 30MHz 2.8V Oscillator Buffer
General Description
The LMV115 is a 30MHz buffer specially designed to mini-
mize the effects of spurious signals from the base band chip
to the oscillator. The buffer also minimizes the influence of
varying load resistance and capacitance to the oscillator and
increases the drive capability.
The input of the LMV115 is internally biased with two equal
resistors to the power supply rails. This allows AC coupling
on the input.
The LMV115 offers a shutdown function to optimize current
consumption. This shutdown function can also be used to
control the supply voltage of an external oscillator. The de-
vice is in shutdown mode when the shutdown pin is con-
nected to V_DD.
The LMV115 comes in SC70-6 package. This space saving
product reduces components, improves clock signal and
allows ease of placement for the best form factor.
Features
(Typical 2.8V supply; values unless otherwise specified)
n Low supply current: 0.3mA
n 2.5V to 3.3V supply
n AC coupling possible without external bias resistors.
n Includes shutdown function external oscillator
n SC70-6 pin package 2.1 x 2mm
n Operating Temperature Range −40˚C to 85˚C
Applications
n Cellular phones
n GSM Modules
n Oscillator Modules
Schematic Diagram
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