MAX7375
3-Pin Silicon Oscillator
General Description
Features
● 2.7V to 5.5V Operation
The MAX7375 is a silicon oscillator, intended as a low-cost
improvement replacing ceramic resonators, crystals, and
crystal oscillator modules used as the clock source for micro-
controllers and UARTs in 3V, 3.3V, and 5V applications.
● Factory-Trimmed Oscillator (600kHz to 9.99MHz)
● No External Components Required
● ±10mA Output Drive Current
● 2% Initial Accuracy
The MAX7375 is a fully integrated oscillator, supplied at
specific factory-trimmed frequencies with a rail-to-rail 50%
duty cycle square-wave output. The oscillator frequency is
generated directly without the use of a phase-locked loop
(PLL). No additional components are used to set or adjust
the frequency.
● ±50ppm/°C Temp Drift
● Fast Startup Time: 5µs
● 40% to 60% Maximum Duty Cycle
● 5ns Output Rise and Fall Time-Low EMI
Unlike typical crystal and ceramic resonator oscillator circuits,
the MAX7375 is highly resistant to vibration and EMI. The
high output drive current and absence of high-impedance
nodes also makes the oscillator less susceptible to dirty
or humid operating conditions. With a wide operating tem-
perature range, the oscillator is a good choice for demanding
home appliance environments.
● Very Low EMI Susceptibility-No High-Impedance
Nodes
● Very Low Jitter: 160ps
at 8MHz
P-P
● Tiny Surface-Mount Package (SC70)
● -40°C to +125°C Temperature Range
Available in 3-pin space-saving SC70 package, the
MAX7375 is offered in standard and nonstandard factory-
set frequencies ranging from 600kHz to 9.99MHz. See
the MAX7381 data sheet for frequencies ≥ 10MHz. The
MAX7375’s standard operating temperature range is
-40°C to +125°C. See the Applications Information sec-
tion for extended operating temperature range.
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX7375AXR105-T
MAX7375AXR185-T
MAX7375AXR365-T
MAX7375AXR375-T
MAX7375AXR405-T
MAX7375AXR425-T
MAX7375AXR805-T
-40°C to +125°C 3 SC70-3
-40°C to +125°C 3 SC70-3
-40°C to +125°C 3 SC70-3
-40°C to +125°C 3 SC70-3
-40°C to +125°C 3 SC70-3
-40°C to +125°C 3 SC70-3
-40°C to +125°C 3 SC70-3
Applications
● White Goods
● Appliances and Controls ● Microcontroller Systems
● Hand-Held Products
● Portable Equipment
Note: The MAX7375 is available in factory-set frequencies
from 600kHz to 9.99MHz. There are seven standard versions
(1MHz, 1.84MHz, 3.58MHz, 3.69MHz, 4MHz, 4.19MHz, and
8MHz, as shown in the Selector Guide) with a required 2.5k
order increment. Nonstandard frequencies are also available
with a required 10k order increment. For nonstandard versions,
contact factory for availability and ordering information. All ver-
sions available in tape-and-reel only.
Typical Application Circuit
2.7V TO 5.5V
µC
OSC1
CLOCK
V+
MAX7375
Pin Configuration and Selector Guide appear at end of data
sheet.
GND
OSC2
19-3060; Rev 4; 4/14