cgs3322 Fairchild Semiconductor, cgs3322 Datasheet

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cgs3322

Manufacturer Part Number
cgs3322
Description
Cmos Crystal Clock Generators
Manufacturer
Fairchild Semiconductor
Datasheet

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Part Number:
cgs3322M
Manufacturer:
NS/国半
Quantity:
20 000
© 2001 Fairchild Semiconductor Corporation
CGS3321M
CGS3322M
CGS3321 • CGS3322
CMOS Crystal Clock Generators
General Description
The CGS3321 and CGS3322 devices are designed for
Clock Generation and Support (CGS) applications up to
110 MHz. The CGS332x series of devices are crystal con-
trolled CMOS oscillators requiring a minimum of external
components. The 332x devices provide selectable output
divide ratio. The circuit is designed to operate over a wide
frequency range using fundamental mode or overtone crys-
tals.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagrams
FACT
Order Number
is a trademark of Fairchild Semiconductor Corporation.
Package Number
CGS3321
CGS3322
M08A
M08A
8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
DS011503
Features
Truth Table
Note: Actual value of the floating DIVB input is V
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 95 MHz
1000V ESD protection on OCS_IN and OSC_OUT pins.
2000V ESD protection on all other pins
Output current drive of 48 mA for I
FACT
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
Package Description
DIVB
CMOS output levels
F
1
0
Division Selection
OEH
X
1
1
September 1195
Revised January 2001
Divider Output
Divide-by 1
Divide-by 2
Divide-by 4
OL
CC/2
/I
www.fairchildsemi.com
OH

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cgs3322 Summary of contents

Page 1

... CGS3321 • CGS3322 CMOS Crystal Clock Generators General Description The CGS3321 and CGS3322 devices are designed for Clock Generation and Support (CGS) applications up to 110 MHz. The CGS332x series of devices are crystal con- trolled CMOS oscillators requiring a minimum of external components. The 332x devices provide selectable output divide ratio ...

Page 2

... OSC_IN Input to Oscillator Inverter. The output of the crystal would be connected here. OSC_OUT Resistive Buffered Output of the Oscillator Inverter DIVB (CGS3322 only) 3-Level input used to select Binary Divide-by value of output frequency. DC_ADJ (CGS3321 only) Active high input that controls output duty cycle. Logic high level will delay the HL transi- tion edge approximately 0 ...

Page 3

Block Diagrams (Continued) Oscillator Stage Output Stage 3 www.fairchildsemi.com ...

Page 4

Absolute Maximum Ratings Supply Voltage ( Input Voltage Diode Current ( Input Voltage ( Output Diode Current ( Output Voltage (V ) -0. Output ...

Page 5

DC Electrical Characteristics Symbol Parameter V CC (V) I Minimum Dynamic OLD 5.5 Output Current I Minimum Dynamic OHD 5.5 Output Current I Additional Maximum I CCT CC per Input 5.5 (OEH, OEL Pins) I Additional Maximum I CC3L CC ...

Page 6

Physical Dimensions inches (millimeters) unless otherwise noted 8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right ...

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