CED Alfa P Q AS3340A Integrated Circuit AS3340A VCO Alfa 16 Pin Dip P13625588CED-P-Q-AS3340A https://cdnimages.opentip.com/full/CED/CED-P-Q-AS3340A.jpg Alfa P Q AS3340A Integrated Circuit AS3340A VCO Alfa 16 Pin Dip Manufacturer Part Number: P-Q-AS3340AThe AS3340A is Alfa\'s version of the CEM3340 IC. The AS3340A is a completely self-contained, precision voltage controlled oscillator, featuring both exponential and linear control scales and up to four buffered output waveforms: triangle, sawtooth, square, and pulse with voltage controllable pulse width. Full temperature compensation makes these VCOs extremely stable, and eliminates the need for a temperature compensation resistor. The highly accurate exponential and linear control inputs are virtual ground summing nodes, allowing multiple control voltages to be mixed within the device itself.Also included is provision for hard and soft synchronization of the frequency, and an output for easy adjustment of high frequency tracking. Special care in the design ensures oscillation start-up under any power-on sequence and supply conditions.An on-chip 7.4 volt Zener diode allows the device to operate off ±15 volt supplies, as well as +12, -5 volt supplies. For voltages greater than -7.5 volts, a series current limiting resistor REE must be added between pin 3 and the negative supply. Its value is calculated as follows:REE = (VEE - 7.4) / .008To minimize self-heating and improve thermal-stability it is recommended to keep VEE = -5V (external power supply).External VEE also minimizes current through GND and improves VCO stability. Scale1 and Scale2 pins are used for trimming of thermo-compensation circuit. Resistor RZ, connected to Scale 1 pin, should provide the same current as current (approx.. 100 uA) flowing in Scale2 pin determined by resistor RT = 5.72k. Rs , resistor connected to pin Scale, is intended to trim V/oct range. AS3340A is an improved version of AS3340. AS3340A has much more output frequency stability against Vcc and VEE . Frequency stability can be improved If external reference voltage (with level approximately ⅓ Vcc) is connected to pin 9 (Soft Sync. Input). AS3340A benefits from improved symmetry of rising and falling edge of triangle signal (approx.. 50%).The AS3340A is available in a 16-pin DIP package.FeaturesLarge Sweep Range: 500,000:1 Fully Temperature CompensatedFour Output Waveforms Available; No waveform trimming requiredSumming Node Inputs for Frequency ControlHigh Exponential Scale AccuracyLow Temperature DriftVoltage Controlled Pulse WidthHard and Soft Sync InputsLinear FMBuffered, Short Circuit Protected Outputs±15 Volt Supplies Exponential Scale Error, Trimmed0.05% Exponential Scale Error, Untrimmed0.2% Frequency Control Range500K:1 Hard Sync Input Resistance6.3 K? Hard Sync Reference Voltage-1.4 V Input Bias Current at Reference and Control Current Inputs200 nA Max. Current through Any Pin±40 mA Max. Operating Temperature Range- 25°C to 75°C Max. Storage Temperature Range- 55°C to 120°C Max. Voltage Between Frequency Control Pin or Reference Current Pin and GND Pin±6 V Max. Voltage Between Multiplier Output Pin and GND Pin+6 V, -1 V Max. Voltage Between VCC and GND Pins+18 V, -0, 5 V Max. Voltage Between VCC and VEE Pins+24 V, -0, 5 V Max. Voltage Between VEE and GND Pins-6 V, +0, 5 V Max Capacitor Charge/Discharge Current570 µA Multiplier Gain Errors0.0005%/µA Negative Supply Voltage Range (Current limiting resistor required for negative supplies greater than -6 volts)-4.5V to -18V Offset Voltage at Reference and Control Current Inputs0 mV Oscillator Drift±50 ppm PWM Input Pin Current1.5 µA PWM Input Voltage for 0% Pulse Width0 mV PWM Input Voltage for 100% Pulse Width5 V Positive Supply Current5 mA Positive Supply Voltage Range+10V to +18V Pulse Output Source Capability at +10V10 mA Sawtooth Output Sink Capability800 µA Sawtooth Waveform Lower Level0 mV Sawtooth Waveform Upper Level10.0 V Squarewave Output Levels-1.3 V Tempco of Input Bias Currents0 ppm Tempo Cancellation0 ppm Triangle & Sawtooth Output Impedance100 ? Triangle Buffer Input Current0.3 nA Triangle Output Sink Capability550 µA Triangle Waveform Lower Level0 mV Triangle Waveform Symmetry50% Triangle Waveform Upper Level5.0 V Packaging Information Packaging Dimensions0.72 in. × 0.36 in. × 0.283 in. Weight (Packaging)0.003 lbs. 13625588 841358118920 0.0200lbs 0.00 0.00 0.00

Alfa

20.7200 2025-07-23 In Stock Alfa P Q AS3340A Integrated Circuit AS3340A VCO Alfa 16 Pin Dip

Alfa P-Q-AS3340A Integrated Circuit - AS3340A, VCO, Alfa, 16-Pin Dip

Brand Alfa

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Product Description

Manufacturer Part Number: P-Q-AS3340A

The AS3340A is Alfa's version of the CEM3340 IC. The AS3340A is a completely self-contained, precision voltage controlled oscillator, featuring both exponential and linear control scales and up to four buffered output waveforms: triangle, sawtooth, square, and pulse with voltage controllable pulse width. Full temperature compensation makes these VCOs extremely stable, and eliminates the need for a temperature compensation resistor. The highly accurate exponential and linear control inputs are virtual ground summing nodes, allowing multiple control voltages to be mixed within the device itself.

Also included is provision for hard and soft synchronization of the frequency, and an output for easy adjustment of high frequency tracking. Special care in the design ensures oscillation start-up under any power-on sequence and supply conditions.

An on-chip 7.4 volt Zener diode allows the device to operate off ±15 volt supplies, as well as +12, -5 volt supplies. For voltages greater than -7.5 volts, a series current limiting resistor REE must be added between pin 3 and the negative supply. Its value is calculated as follows:
REE = (VEE - 7.4) / .008

To minimize self-heating and improve thermal-stability it is recommended to keep VEE = -5V (external power supply).

External VEE also minimizes current through GND and improves VCO stability. Scale1 and Scale2 pins are used for trimming of thermo-compensation circuit. Resistor RZ, connected to Scale 1 pin, should provide the same current as current (approx.. 100 uA) flowing in Scale2 pin determined by resistor RT = 5.72k. Rs , resistor connected to pin Scale, is intended to trim V/oct range. AS3340A is an improved version of AS3340. AS3340A has much more output frequency stability against Vcc and VEE . Frequency stability can be improved If external reference voltage (with level approximately ⅓ Vcc) is connected to pin 9 (Soft Sync. Input). AS3340A benefits from improved symmetry of rising and falling edge of triangle signal (approx.. 50%).

The AS3340A is available in a 16-pin DIP package.

Features

Large Sweep Range: 500,000:1
Fully Temperature Compensated
Four Output Waveforms Available; No waveform trimming required
Summing Node Inputs for Frequency Control
High Exponential Scale Accuracy
Low Temperature Drift
Voltage Controlled Pulse Width
Hard and Soft Sync Inputs
Linear FM
Buffered, Short Circuit Protected Outputs
±15 Volt Supplies

Exponential Scale Error, Trimmed

0.05%

Exponential Scale Error, Untrimmed

0.2%

Frequency Control Range

500K:1

Hard Sync Input Resistance

6.3 K?

Hard Sync Reference Voltage

-1.4 V

Input Bias Current at Reference and Control Current Inputs

200 nA

Max. Current through Any Pin

±40 mA

Max. Operating Temperature Range

- 25°C to 75°C

Max. Storage Temperature Range

- 55°C to 120°C

Max. Voltage Between Frequency Control Pin or Reference Current Pin and GND Pin

±6 V

Max. Voltage Between Multiplier Output Pin and GND Pin

+6 V, -1 V

Max. Voltage Between VCC and GND Pins

+18 V, -0, 5 V

Max. Voltage Between VCC and VEE Pins

+24 V, -0, 5 V

Max. Voltage Between VEE and GND Pins

-6 V, +0, 5 V

Max Capacitor Charge/Discharge Current

570 µA

Multiplier Gain Errors

0.0005%/µA

Negative Supply Voltage Range (Current limiting resistor required for negative supplies greater than -6 volts)

-4.5V to -18V

Offset Voltage at Reference and Control Current Inputs

0 mV

Oscillator Drift

±50 ppm

PWM Input Pin Current

1.5 µA

PWM Input Voltage for 0% Pulse Width

0 mV

PWM Input Voltage for 100% Pulse Width

5 V

Positive Supply Current

5 mA

Positive Supply Voltage Range

+10V to +18V

Pulse Output Source Capability at +10V

10 mA

Sawtooth Output Sink Capability

800 µA

Sawtooth Waveform Lower Level

0 mV

Sawtooth Waveform Upper Level

10.0 V

Squarewave Output Levels

-1.3 V

Tempco of Input Bias Currents

0 ppm

Tempo Cancellation

0 ppm

Triangle & Sawtooth Output Impedance

100 ?

Triangle Buffer Input Current

0.3 nA

Triangle Output Sink Capability

550 µA

Triangle Waveform Lower Level

0 mV

Triangle Waveform Symmetry

50%

Triangle Waveform Upper Level

5.0 V

Packaging Information

Packaging Dimensions

0.72 in. × 0.36 in. × 0.283 in.

Weight (Packaging)

0.003 lbs.

Attention CA Residents: Prop 65 Warning

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

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