NE566 PHILIPS | Alldatasheet

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Philips Semiconductors Linear Products Product specification NE/SE566Function generator 398April 15, 1992 853-0910 06454

DESCRIPTION

The NE/SE566 Function Generator is a voltage-controlled oscillator of exceptional linearity with buffered square wave and triangle wave outputs. The frequency of oscillation is determined by an external resistor and capacitor and the voltage applied to the control terminal. The oscillator can be programmed over a ten-to-one frequency range by proper selection of an external resistance and modulated over a ten-to-one range by the control voltage, with exceptional linearity.

FEATURES

  • Wide range of operating voltage (up to 24V; single or dual)
  • High linearity of modulation
  • Highly stable center frequency (200ppm/°C typical)
  • Highly linear triangle wave output
  • Frequency programming by means of a resistor or capacitor, voltage or current
  • Frequency adjustable over 10-to-1 range with same capacitor PIN CONFIGURATIONS D, N Packages 4 5 8GROUND NC SQUARE WAVE OUTPUT TRIANGLE WAVE OUTPUT MODULATION INPUT C 1 R 1 TOP VIEW

APPLICATIONS

  • Tone generators
  • Frequency shift keying
  • FM modulators
  • Clock generators
  • Signal generators
  • Function generators

ORDERING INFORMATION

DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG # 8-Pin Plastic Small Outline (SO) Package 0 to +70°C NE566D 0174C 14-Pin Ceramic Dual In-Line Package (CERDIP) 0 to +70°C NE566F 0581B 8-Pin Plastic Dual In-Line Package (DIP) 0 to +70°C NE566N 0404B 8-Pin Plastic Dual In-Line Package (DIP) -55°C to +125°C SE566N 0404B BLOCK DIAGRAM VC MODULATION INPUT R 1 6 8 C 1 SCHMITT TRIGGER BUFFER AMPLIFIER BUFFER AMPLIFIER CURRENT SOURCES

Philips Semiconductors Linear Products Product specification NE/SE566Function generator April 15, 1992 399 EQUIVALENT SCHEMATIC VC R 1 (EXTERNAL) C 1 (EXTER– NAL) 4 3 5kΩ GROUND ABSOLUTE MAXIMUM RATINGS SYMBOL PARAMETER RATING UNIT V+ Maximum operating voltage 26 V VIN, VC Input voltage 3 VP-P TSTG Storage temperature range -65 to +150 °C TA Operating ambient temperature range NE566 0 to +70 °C SE566 -55 to +125 °C PD Power dissipation 300 mW

Philips Semiconductors Linear Products Product specification NE/SE566Function generator April 15, 1992 400 DC ELECTRICAL CHARACTERISTICS TA=25°C, VCC =±6V, unless otherwise specified. SYMBOL PARAMETER SE566 NE566 UNITSYMBOL PARAMETER Min Typ Max Min Typ Max UNIT General TA Operating ambient temperature range -55 125 0 70 °C VCC Operating supply voltage ±6 ±12 ±6 ±12 V ICC Operating supply current 7 12.5 7 12.5 mA VCO 1 fMAX Maximum operating frequency 1 1 MHz Frequency drift with temperature 500 600 ppm/°C Frequency drift with supply voltage 0.1 1 0.2 2 %/V Control terminal input impedance2 1 1 M Ω FM distortion (±10% deviation) 0.2 0.75 0.4 1.5 % Maximum sweep rate 1 1 MHz Sweep range 10:1 10:1 Output Triangle wave output impedance 50 50 Ω voltage 1.9 2.4 1.9 2.4 VP-P linearity 0.2 0.5 % Square wave input impedance 50 50 Ω voltage 5 5.4 5 5.4 VP-P duty Cycle 45 50 55 40 50 60 % tR Rise time 20 20 ns tF Fall Time 50 50 ns NOTES: 1. The external resistance for frequency adjustment (R1) must have a value between 2kΩ and 20kΩ . 2. The bias voltage (VC ) applied to the control terminal (Pin 5) should be in the range V+≤VC ≤V+.

Philips Semiconductors Linear Products Product specification NE/SE566Function generator April 15, 1992 401 TYPICAL PERFORMANCE CHARACTERISTICS ÇÇÇÇ ÇÇÇÇ ÇÇÇÇ ÇÇÇÇ ÇÇÇÇ ÇÇÇÇ ÇÇÇÇÇ ÇÇÇÇÇ ÇÇÇÇÇ ÇÇÇÇÇ ÇÇÇÇÇ ÇÇÇÇÇ Normalized Frequency as a Function of Control Voltage Normalized Frequency as a Function of Resistance (R1) Change in Frequency as a Function of Temperature Power Supply Current as a Function of Supply Voltage Frequency as a Function of Capacitance (C1) VCO Output Waveforms 2.5 2.0 1.5 1.0 0.5 CONTROL VOLTAGE (BETWEEN PIN 8 AND PIN 5) — VOLTS NORMALIZED FREQUENCY V+ = 12 VOLTS 100 0.1 0.2 0.5 1 2 5 10 V+ = 12 VOLTS VC = 10 VOLTS NORMALIZED FREQUENCY RESISTANCE (R ) — (K )1 Ω +2.5 +2.0 +1.5 +1.0 +0.5 –0.5 –1.0 –1.5 –2.0 –2.5 –75 –50 –25 0 +25 +50 +75 +100 +125 TEMPERATURE — ( oC) CHANGE IN FREQUENCY — (%) V+ = 12 VOLTS VC = 10 VOLTS TYPICAL 20.0 17.5 15.0 12.5 10.0 7.5 10 13 16 19 22 25 SUPPLY VOLTAGE — V SUPPLY CURRENT — mA R t = 4kΩMAXIMUM TYPICAL V+ = 12 VOLTS VC = 10 VOLTS R 1 = 4k 1.0 0.1 0.01 0.001 0.0001 1 10 102 103 104 105 106 FREQUENCY — Hz CAPACITANCE (C ) — F1 µ V+ = 12 VOLTS OUTPUT 3 — V OUTPUT PIN 4 — V OPERATING INSTRUCTIONS The NE/SE566 Function Generator is a general purpose voltage-controlled oscillator designed for highly linear frequency modulation. The circuit provides simultaneous square wave and triangle wave outputs at frequencies up to 1MHz. A typical connection diagram is shown in Figure 1. The control terminal (Pin 5) must be biased externally with a voltage (VC ) in the range V+≤VC ≤V+ where VCC is the total supply voltage. In Figure 1, the control voltage is set by the voltage divider formed with R2 and R3. The modulating signal is then AC coupled with the capacitor C2. The modulating signal can be direct coupled as well, if the appropriate DC bias voltage is applied to the control terminal. The frequency is given approximately by fO 2 [(V ) (VC )] R 1 C 1 V and R1 should be in the range 2kΩ < R1<20kΩ . A small capacitor (typically 0.001µF) should be connected between Pins 5 and 6 to eliminate possible oscillation in the control current source. If the VCO is to be used to drive standard logic circuitry, it may be desirable to use a dual supply as shown in Figure 2. In this case the square wave output has the proper DC levels for logic circuitry. RTL can be driven directly from Pin 3. For DTL or TTL gates, which require a current sink of more than 1mA, it is usually necessary to connect a 5kΩ resistor between Pin 3 and negative supply. This increases the current sinking capability to 2mA. The third type of