MAX7375 3-Pin Silicon Oscillator General Description Features The MAX7375 is a silicon oscillator, intended as a low-cost 2.7V to 5.5V Operation improvement replacing ceramic resonators, crystals, and Factory-Trimmed Oscillator (600kHz to 9.99MHz) crystal oscillator modules used as the clock source for micro- No External Components Required controllers and UARTs in 3V, 3.3V, and 5V applications. 10mA Output Drive Current The MAX7375 is a fully integrated oscillator, supplied at specific factory-trimmed frequencies with a rail-to-rail 50% 2% Initial Accuracy duty cycle square-wave output. The oscillator frequency is 50ppm/C Temp Drift generated directly without the use of a phase-locked loop (PLL). No additional components are used to set or adjust Fast Startup Time: 5s the frequency. 40% to 60% Maximum Duty Cycle Unlike typical crystal and ceramic resonator oscillator circuits, 5ns Output Rise and Fall Time-Low EMI the MAX7375 is highly resistant to vibration and EMI. The Very Low EMI Susceptibility-No High-Impedance high output drive current and absence of high-impedance Nodes nodes also makes the oscillator less susceptible to dirty or humid operating conditions. With a wide operating tem- Very Low Jitter: 160ps at 8MHz P-P perature range, the oscillator is a good choice for demanding Tiny Surface-Mount Package (SC70) home appliance environments. -40C to +125C Temperature Range Available in 3-pin space-saving SC70 package, the MAX7375 is offered in standard and nonstandard factory- Ordering Information set frequencies ranging from 600kHz to 9.99MHz. See the MAX7381 data sheet for frequencies 10MHz. The PART TEMP RANGE PIN-PACKAGE MAX7375s standard operating temperature range is MAX7375AXR105-T -40C to +125C 3 SC70-3 -40C to +125C. See the Applications Information sec- MAX7375AXR185-T -40C to +125C 3 SC70-3 tion for extended operating temperature range. MAX7375AXR365-T -40C to +125C 3 SC70-3 Applications MAX7375AXR375-T -40C to +125C 3 SC70-3 White Goods Portable Equipment MAX7375AXR405-T -40C to +125C 3 SC70-3 Appliances and Controls Microcontroller Systems Hand-Held Products MAX7375AXR425-T -40C to +125C 3 SC70-3 MAX7375AXR805-T -40C to +125C 3 SC70-3 Note: The MAX7375 is available in factory-set frequencies Typical Application Circuit from 600kHz to 9.99MHz. There are seven standard versions (1MHz, 1.84MHz, 3.58MHz, 3.69MHz, 4MHz, 4.19MHz, and 2.7V TO 5.5V 8MHz, as shown in the Selector Guide) with a required 2.5k order increment. Nonstandard frequencies are also available C OSC1 with a required 10k order increment. For nonstandard versions, V+ CLOCK contact factory for availability and ordering information. All ver- sions available in tape-and-reel only. MAX7375 Pin Configuration and Selector Guide appear at end of data GND sheet. OSC2 19-3060 Rev 4 4/14MAX7375 3-Pin Silicon Oscillator Absolute Maximum Ratings V+ to GND ...............................................................-0.3V to +6V Operating Temperature Range ......................... -55C to +135C CLOCK to GND ...........................................-0.3V to (V+ + 0.3V) Junction Temperature ......................................................+150C Continuous Power Dissipation (T = +70C) Storage Temperature Range ............................ -65C to +150C A 3-Pin SC70 (derate 2.9mW/C over +70C) ................235mW Lead Temperature (soldering, 10s) .................................+300C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics (V+ = 2.7V to 5.5V, T = -40C to +125C, unless otherwise noted. Typical values are at V+ = 5V, T = +25C, unless otherwise noted.) A A (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Operating Supply Voltage V+ 2.7 5.5 V MAX7375A R105 0.55 1.1 MAX7375A R185 0.8 1.25 Operating Supply Current I+ mA MAX7375A R405 1.7 4.2 MAX7375A R805 3.2 6.4 V+ 2.7V, I = 2.5mA V+ - 0.4 SOURCE Output High Voltage V V OH V+ 4.5V, I = 9mA V+ - 0.4 SOURCE V+ 2.7, I = 10mA 0.4 SINK Output Low Voltage V V OL V+ 4.5V, I = 20mA 0.4 SINK V+ = 3.0V, MAX7375A R -2 +2 T = +25C (Note 2) A Initial CLOCK Frequency f % CLOCK Accuracy V+ = 2.7V to 5.5V, MAX7375A R -4 +4 T = +25C (Note 2) A CLOCK Frequency Temperature (Note 3) 50 325 ppm/C Sensitivity Duty Cycle (Note 3) 45 52 57 % Observation for 20s using a 500MHz Output Jitter 160 ps P-P oscilloscope (MAX7375A R805) Output Rise Time t (Note 3) 5.0 ns R Output Fall Time t (Note 3) 2.5 ns F Note 1: All parameters are tested at T = +25C. Specifications over temperature are guaranteed by design and characterization. A Note 2: Typical frequencies are nominal values. Note 3: Guaranteed by design and characterization. Not production tested. Maxim Integrated 2 www.maximintegrated.com