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MAX038CPP Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX038CPP Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 16 page _______________General Description The MAX038 is a high-frequency, precision function generator producing accurate, high-frequency triangle, sawtooth, sine, square, and pulse waveforms with a minimum of external components. The output frequency can be controlled over a frequency range of 0.1Hz to 20MHz by an internal 2.5V bandgap voltage reference and an external resistor and capacitor. The duty cycle can be varied over a wide range by applying a ±2.3V control signal, facilitating pulse-width modula- tion and the generation of sawtooth waveforms. Frequency modulation and frequency sweeping are achieved in the same way. The duty cycle and frequency controls are independent. Sine, square, or triangle waveforms can be selected at the output by setting the appropriate code at two TTL-compatible select pins. The output signal for all waveforms is a 2VP-P signal that is symmetrical around ground. The low-impedance output can drive up to ±20mA. The TTL-compatible SYNC output from the internal oscillator maintains a 50% duty cycle—regardless of the duty cycle of the other waveforms—to synchronize other devices in the system. The internal oscillator can be synchronized to an external TTL clock connected to PDI. ________________________Applications Precision Function Generators Voltage-Controlled Oscillators Frequency Modulators Pulse-Width Modulators Phase-Locked Loops Frequency Synthesizer FSK Generator—Sine and Square Waves ____________________________Features o 0.1Hz to 20MHz Operating Frequency Range o Triangle, Sawtooth, Sine, Square, and Pulse Waveforms o Independent Frequency and Duty-Cycle Adjustments o 350 to 1 Frequency Sweep Range o 15% to 85% Variable Duty Cycle o Low-Impedance Output Buffer: 0.1 Ω o Low-Distortion Sine Wave: 0.75% o Low 200ppm/°C Temperature Drift ______________Ordering Information * Contact factory for dice specifications. High-Frequency Waveform Generator ________________________________________________________________ Maxim Integrated Products 1 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 V- OUT GND V+ A1 A0 GND REF TOP VIEW MAX038 DV+ DGND SYNC PDI FADJ DADJ GND COSC PDO GND IIN GND DIP/SO __________________Pin Configuration 19-0266; Rev 2a; 9/96 PART TEMP. RANGE PIN-PACKAGE MAX038CPP 0°C to +70°C 20 Plastic DIP MAX038CWP 0°C to +70°C 20 SO MAX038C/D 0°C to +70°C Dice* MAX038EPP -40°C to +85°C 20 Plastic DIP MAX038EWP -40°C to +85°C 20 SO EVALUATION KIT AVAILABLE For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468. |
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