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参数资料
| 型号： | 11640-812 |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 40 MHz, OTHER CLOCK GENERATOR, PDSO8 |
| 封装： | 0.150 INCH, SOIC-8 |
| 文件页数： | 1/4页 |
| 文件大小： | 87K |
| 代理商： | 11640-812 |
X T
February 1999
This document contains information on a product under development. American Microsystems, Inc. reserves the right to change or discontinue this product without notice.
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1.0
Features
On-board crystal oscillator
Phase-locked loop (PLL) synthesizes desired CLK
frequency
Internal loop filter
Internal crystal oscillator load capacitance (16pF
nominal)
Only external components required are decoupling
capacitors
Minimal board footprint (8-pin 0.150" SOIC package)
2.0
Description
The FS6118 is a monolithic CMOS frequency synthesizer
IC designed for cost sensitive or space limited applica-
tions.
An on-board crystal oscillator accepts a quartz crystal
and provides a different, synthesized frequency on the
CLK output. The device is packaged in an 8-pin SOIC
package for a minimal board footprint.
Custom factory-programmed clock frequencies are avail-
able. Please contact your local AMI sales representative
for more information.
Figure 1: Block Diagram
XIN
FS6118
CLK
Crystal
Oscillator
Phase-
Locked Loop
XOUT
Figure 2: Pin Configuration
1
8
2
3
4
7
6
5
VSS
XOUT
XIN
VDD
CLK
VSS
n/c
VDD
8-pin 0.150" SOIC
F
S
61
18
Table 1: Pin Descriptions
Key: AI = Analog Input; AO = Analog Output; DI = Digital Input; DI
U = Input with Internal Pull-Up;
DID = Input with Internal Pull-Down; DIO = Digital Input/Output; DI-3 = Three-Level Digital Input,
DO = Digital Output; P = Power/Ground; # = Active Low pin
PIN
TYPE
NAME
DESCRIPTION
1
P
VSS
Ground
2
AO
XOUT
Crystal oscillator feedback
3
AI
XIN
Crystal oscillator drive
4
P
VDD
Power supply (+5V)
5
--
N/C
No Connection
6
P
VSS
Ground
7
DO
CLK
Clock Output
8
P
VDD
Power Supply (+5V)
Table 2: Font Description
DEVICE
CRYSTAL FREQUENCY
(MHz)
CLK FREQUENCY
(MHz)
FS6118-01
14.31818
40.0000
Custom frequencies available – contact AMI for more information
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