National Semiconductor CGS3321
The CGS332x series of devices are crystal controlled CMOS oscillators requiring a minimum of external ccomponents. The 332x devices provide selectable output divide ratio. The circuit is designed to operate over a wide frequency range using fundamental mode or overtone crystals.| Part No. | CGS3321 |
|---|---|
| Datasheet | CGS3321 Download |
| Manufacturer |  National Semiconductor |
| Description | CMOS Crystal Clock Generators |
| Buy | Stock & Price |
GENERAL DESCRIPTION
These devices are designed for Clock Generation and Support (CGSTM) applications up to 110 MHz.FEATURES
● National's CGS family of devices for high frequency clock source applications● Crystal frequency operation range: fundamental: 10 MHz to 110 MHz typical 3rd or 5th overtone: 10 MHz to 95 MHz
● 1000V ESO protection on OSC_IN and OSC_OUT pins. 2000V ESO protection on all other pins
● Output current drive of 48 rnA for IOl/lOH
● FACTTM CMOS output levels
● Output has high speed short circuit protection
● Intended for Pierce oscillator applications
● Hysteresis inputs to improve noise margin
● CGS3321 has duty cycle adjust
● CGS3322 has 1, 2, 4 divide ratio Block Diagrams Vee CRYST!~ { TERMINALS 0 - - + - - - - - - - - - - - - -.... I---+--C> OUT Note: Pin numbers vary for each device. Dive DCADJ OEH TLlF/11503-1 4-148 Block Diagrams (Continued) IN3L Vee Input Drivers INPSL INPUT INPSH Vee GND TL/F/ll503-2 GND TL/F/ll503-3 Oscillator Stage 100 kn TLlF/ll 503-4 OSC...
