General Description
The MAX7375 is a silicon oscillator, intended as a low-
cost improvement replacing ceramic resonators, crys-
tals, and crystal oscillator modules used as the clock
source for microcontrollers and UARTs in 3V, 3.3V, and
5V applications.
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 oscilla-
tor frequency is generated directly without the use of a
phase-locked loop (PLL). No additional components
are used to set or adjust the frequency.
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 temperature range, the oscillator is a
good choice for demanding home appliance and auto-
motive environments.
Available in 3-pin space-saving SC70 and SOT23 pack-
ages, the MAX7375 is offered in standard and nonstan-
dard 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 section for extended operating temperature
range.
Applications
White Goods Portable Equipment
Automotive Microcontroller Systems
Appliances and Controls
Hand-Held Products
Features
♦ 2.7V to 5.5V Operation
♦ Factory-Trimmed Oscillator (600kHz to 9.99MHz)
♦ No External Components Required
♦ ±10mA Output Drive Current
♦ 2% Initial Accuracy
♦ ±50ppm/°C Temp Drift
♦ Fast Startup Time: 5µs
♦ 40% to 60% Maximum Duty Cycle
♦ 5ns Output Rise and Fall Time-Low EMI
♦ Very Low EMI Susceptibility-No High-Impedance
Nodes
♦ Very Low Jitter: 160ps
P-P
at 8MHz
♦ Tiny Surface-Mount Package (SC70, SOT23)
♦ -40°C to +125°C Temperature Range
MAX7375
3-Pin Silicon Oscillator
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-3060; Rev 2; 7/04
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Typical Application Circuit
Pin Configuration and Selector Guide appear at end of data
sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd,
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 versions available in
tape-and-reel only.
