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MAX038 Datasheet(PDF) 7 Page - Maxim Integrated Products |
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MAX038 Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 16 page High-Frequency Waveform Generator _______________________________________________________________________________________ 7 ______________________________________________________________Pin Description * The five GND pins are not internally connected. Connect all five GND pins to a quiet ground close to the device. A ground plane is recommended (see Layout Considerations). 0 -100 0 20 60 100 OUTPUT SPECTRUM, SINE WAVE (Fo = 11.5MHz) -80 -20 FREQUENCY (MHz) 40 80 -40 -60 -10 -30 -50 -70 -90 10 30 50 70 90 RIN = 15kΩ (VIN = 2.5V), CF = 20pF, VDADJ = 40mV, VFADJ = -3V 0 -100 0 10 30 50 OUTPUT SPECTRUM, SINE WAVE (Fo = 5.9kHz) -80 -20 FREQUENCY (kHz) 20 40 -40 -60 -10 -30 -50 -70 -90 5 15 25 35 45 RIN = 51kΩ (VIN = 2.5V), CF = 0.01µF, VDADJ = 50mV, VFADJ = 0V ____________________________Typical Operating Characteristics (continued) (Circuit of Figure 1, V+ = DV+ = 5V, V- = -5V, VDADJ = VFADJ = VPDI = VPDO = 0V, RL = 1kΩ, CL = 20pF, TA = +25°C, unless otherwise noted.) -5V supply input V- 20 Sine, square, or triangle output OUT 19 +5V supply input V+ 17 Digital +5V supply input. Can be left open if SYNC is not used. DV+ 16 Digital ground DGND 15 TTL/CMOS-compatible output, referenced between DGND and DV+. Permits the internal oscillator to be synchronized with an external signal. Leave open if unused. SYNC 14 Current input for frequency control IIN 10 Phase detector output. Connect to GND if phase detector is not used. PDO 12 Phase detector reference clock input. Connect to GND if phase detector is not used. PDI 13 External capacitor connection COSC 5 Duty-cycle adjust input DADJ 7 Frequency adjust input FADJ 8 Waveform selection input; TTL/CMOS compatible A1 4 Waveform selection input; TTL/CMOS compatible A0 3 PIN Ground* GND 2, 6, 9, 11, 18 2.50V bandgap voltage reference output REF 1 FUNCTION NAME |
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Similar Description - MAX038 |
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