Plessey SL652C
The SL652C is a versatile integrated circuit capable of performing all the common modulation functions (AM, PAM, SCAM, FM, FSK, PSK, PWM, tone·burst, delta'modulation, etc.). The highly accurate and stable variable frequency oscillator is programmable over a wide range of frequency by voltage, current, resistor or capacitor. The differential input phase comparator has a wide common mode input voltage range.FEATURES
● VFO Frequency Variable Over 100: 1 Range With Same Capacitor: Linearity 0.2%● VFO Temperature Coefficient: 20 ppmrC Typ.
● Supply sensitivity 20 ppm/% Typ.
● VFO Phase-Continuous at Transitions
● Binary Interface QUICK REFERENCE DATA
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● Supply Voltages Operating Temperature Range Supply Currents ±6V aOc to+70°C 1.5mA typo DG 16 Fig. 1 Pin connections (top view)
APPLICATIONS
● Modems● Modulators
● Demodu lators
● Tone Decoders
● Tracking Filters
● Waveform Generators
● Stable Current-Controlled Osci Ilators
ABSOLUTE MAXIMUM RATINGS
Supply voltages Storage temperature Operating temperature Input voltages ±7.5V _55° to +175°C _550 to +125°C Not greater than supplies 163 SL652CELECTRICAL CHARACTERISTICS
Test Conditions (unless otherwise stated): Supply voltage: ±6V TA:' +25°C ±5°C Characteristics Value Pins Units Min. Typ. Max. Conditions Variable frequency oscillator Initial frequency offset error Normal mark/space ratio Temp. coefficient of frequency Frequency variation w...