JS-803-A Series
- LCD Display 16 character by 1 line shows frequency, voltage and output waveform.
- Sine, Square, Triangular and Pulse Wave forms.
- Direct Digital Synthesizer IC based design with crystal oscillator gives exceptional frequency accuracy.
- High frequency active filter used to get low distortion sine wave.
- Wide frequency range from 3 Hz to 3 MHz with low phase noise and good spurious performance.
- Variable DC offset facility with ON/OFF control.
- Output amplifier protected against short circuit and ±15V overload.
- Standard 50 ohms output impedance.
- Compact size enables space saving.
Signal Generator Model JS-803-A is a high performance unit built using state of the art techniques. The LCD display shows the output frequency and amplitude with good calibration accuracy as also output waveform type. Sine, Square, Triangular and Pulse wave forms are available. The impressive performance and low cost makes it ideally suited for service, educational and industrial applications. The digital architecture of DDS eliminates frequency drift due to component ageing and temperature variation.
TECHNICAL SPECIFICATIONS
MODEL JS-803-A |
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WAVE FORMS | Sine | 3 Hz to 3 MHz | |||||
Square | 3 Hz to 3 MHz | ||||||
Triangle | 3 Hz to 300 KHz | ||||||
Pulse | 3 Hz to 3 MHz | ||||||
Selection | push button switch | ||||||
FREQUENCY | Readout | 3½ digits LCD display with direct display in Hz, KHz, MHz | |||||
Accuracy | 3% < 6 Hz | ||||||
2% - 6 Hz - 15 Hz | |||||||
1% - 15 Hz - 30 Hz | |||||||
0.5% - 30 Hz - 150 Hz | |||||||
0.1% > 150 Hz | |||||||
Selection | 2 nos. push button switches with separate fine control | ||||||
VOLTAGE | Readout | 3 ½ digits with direct display in V, mV | |||||
Accuracy | ±4% at 0 dB attenuation. Add 1% for every 20dB of attenuation | ||||||
OUTPUT | Socket | BNC | |||||
Amplitude | 20 volts pk-pk | ||||||
Impedance | 50 ohm | ||||||
Protection | Output Amplifier protected for short circuit & ±15V overload | ||||||
Offset with enable | ±5V continuously adjustable, attenuated by step attenuator | ||||||
Level flatness | ±2% from 3 Hz to 300 KHz | ||||||
ATTENUATOR | Attenuation | 0 dB, 20 dB, 40 dB, 60 dB | |||||
Selection | two station push button switch | ||||||
SINE OUTPUT | Distortion | 0.5% max @ 20V pk-pk, 0.2% max @ 2V pk-pk (Fo=10KHz) | |||||
SQUARE OUTPUT | Rise & Fall time | < 50 nsec | |||||
TRIANGLE OUTPUT | Linearity error | 0.2% (Fo = 15 KHz, 5% to 95%) | |||||
PULSE OUTPUT | Rise & Fall time | < 50 nsec | |||||
Duty cycle variation | 10% to 90% , 25% to 75% in Highest Frequency Range | ||||||
GENERAL | Operating Temp. | 0 to 50°C (Accuracy specified at 25°C) | |||||
Power | 230 V AC ±10%, 50 Hz, 5 VA | ||||||
Dimensions | 215 mm (W) x 85 mm (H) x 205 mm (D) | ||||||
Weight | 1.8 Kg approx. | ||||||
Accessories | BNC to crocodile cable & Operating manual |