Clock Generator 8-Pin SOIC N T/R

The CGS3312 device is designed for Clock Generation and Support (CGS) applications up to 110 MHz. The CGS331x series of devices are crystal controlled CMOS oscillators requiring a minimum of external components. The 331x devices provide selectable output divide ratio (and selectable crystal drive level). The circuit is designed to operate over a wide frequency range using fundamental model or overtone crystals.

• Fairchild’s CGS family of devices for high frequency clock source applications
• Crystal frequency operation range:
  • fundamental: 10 MHz to 100 MHz typical
  • 3rd or 5th overtone: 10 MHz to 85 MHz
• Programmable oscillator drive
• Selectable fast output edge rates
• Output symmetry circuit to adjust 50% duty cycle point between CMOS and TTL levels
• Output current drive of 48 mA for IOL/IOH
• FACT? CMOS output levels
• Output has high speed short circuit protection
• Basic oscillator type: Pierce
• Hysteresis inputs to improve noise margin