19-3060; Rev 2; 7/04
3-Pin Silicon Oscillator
General Description
Features
♦ 2.7V to 5.5V Operation
♦ Factory-Trimmed Oscillator (600kHz to 9.99MHz)
♦ No External Components Required
♦ ±±0mꢀ Output ꢁriꢂe Current
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.
♦ 2% Initial ꢀccuracy
♦ ±50ppmꢃ/C Temp ꢁriꢄt
♦ Fast Startup Time: 5µs
♦ 40% to 60% Maximum ꢁuty Cycle
♦ 5ns Output Rise and Fall Time-Low EMI
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.
♦ Very Low EMI Susceptibility-No High-Impedance
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.
Nodes
♦ Very Low Jitter: ±60psP-P at 8MHz
♦ Tiny Surꢄace-Mount Package (SC70, SOT23)
♦ -40/C to +±25/C Temperature Range
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.
Ordering Information
PꢀRT
TEMP RꢀNGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-PꢀCKꢀGE
3 SC70-3
MAX7375AXR105-T
MAX7375AXR185-T
MAX7375AXR365-T
MAX7375AXR375-T
MAX7375AXR405-T
MAX7375AXR425-T
MAX7375AXR805-T
MAX7375AUR105-T
MAX7375AUR185-T
MAX7375AUR365-T
MAX7375AUR375-T
MAX7375AUR405-T
MAX7375AUR425-T
MAX7375AUR805-T
3 SC70-3
3 SC70-3
3 SC70-3
3 SC70-3
Applications
3 SC70-3
White Goods
Portable Equipment
3 SC70-3
Automotive
Microcontroller Systems
3 SOT23-3
3 SOT23-3
3 SOT23-3
3 SOT23-3
3 SOT23-3
3 SOT23-3
3 SOT23-3
Appliances and Controls
Hand-Held Products
Typical Application Circuit
2.7V TO 5.5V
µC
OSC1
CLOCK
V+
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.
MAX7375
GND
OSC2
Pin Configuration and Selector Guide appear at end of data
sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd,
________________________________________________________________ Maxim Integrated Products
±
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.