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March 2000
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Features
2.0
Description
Dual phase-locked loop (PLL) device with three output clock frequencies 3.3V supply voltage Small circuit board footprint (8-pin 0.150 SOIC) Custom frequency selections available - contact your local AMI Sales Representative for more information
The FS6284 is a monolithic CMOS clock generator IC designed to minimize cost and component count in digital video/audio systems. All frequencies are ratiometrically derived from the crystal oscillator frequency. The locking of all the output frequencies together can eliminate unpredictable artifacts in video systems and reduce electromagnetic interference (EMI) due to frequency harmonic stacking.
Figure 1: Pin Configuration
SEL XIN XOUT VDD
1 8
Table 1: Crystal / Output Frequencies
CLKA CLKB VSS CLKC
FS6284-01 1
5
DEVICE
SEL 0
fXIN (MHz)
CLKA (MHz)
CLKB (MHz)
CLKC (MHz)
FS6284
2 3 4
7 6
14.31818
81.000 (fXIN* 198 / 35) 14.31818 48.000 (fXIN) (fXIN* 352 / 105) 70.000 (fXIN* 44 / 9)
NOTE: Contact AMI for custom PLL frequencies
8-pin (0.150) SOIC
Figure 2: Block Diagram
XIN CRYSTAL OSC. XOUT PLL DIVIDER ARRAY
CLKA
CLKB
PLL SEL
CLKC
FS6284
This document contains information on a preproduction product. Specifications and information herein are subject to change without notice.
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Key: AI = Analog Input; AO = Analog Output; DI = Digital Input; DIU = 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 1 2 3 4 5 6 7 8
TYPE DI
U
NAME SEL XIN XOUT VDD CLKC VSS CLKB CLKA Select Input (see Table 1)
DESCRIPTION
AI AO P DO P DO DO
Crystal Oscillator Drive / External Reference Input Crystal Oscillator Feedback Power (+3.3 volts) Clock Output C Ground Clock Output B Clock Output A
3.0
Electrical Specifications
Table 3: Absolute Maximum Ratings
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. These conditions represent a stress rating only, and functional operation of the device at these or any other conditions above the operational limits noted in this specification is not implied. Exposure to maximum rating conditions for extended conditions may affect device performance, functionality, and reliability.
PARAMETER Supply Voltage (VSS = ground) Input Voltage, dc Output Voltage, dc Input Clamp Current, dc (VI < 0 or VI > VDD) Output Clamp Current, dc (VI < 0 or VI > VDD) Storage Temperature Range (non-condensing) Ambient Temperature Range, Under Bias Junction Temperature Lead Temperature (soldering, 10s) Input Static Discharge Voltage Protection (MIL-STD 883E, Method 3015.7)
SYMBOL VDD VI VO IIK IOK TS TA TJ
MIN. VSS-0.5 VSS-0.5 VSS-0.5 -50 -50 -65 -55
MAX. 7 VDD+0.5 VDD+0.5 50 50 150 125 125 260 2
UNITS V V V mA mA C C C C kV
CAUTION: ELECTROSTATIC SENSITIVE DEVICE
Permanent damage resulting in a loss of functionality or performance may occur if this device is subjected to a high-energy electrostatic discharge.
Table 4: Operating Conditions
PARAMETER Supply Voltage Ambient Operating Temperature Range SYMBOL VDD TA CONDITIONS/DESCRIPTION 3.3V 10% MIN. 3.0 0 TYP. 3.3 MAX. 3.6 70 UNITS V C
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Package Information
Table 5: 8-pin SOIC (0.150") Package Dimensions
DIMENSIONS INCHES MIN. A A1 A2 B C D E e H h L 0.061 0.004 0.055 0.013 0.0075 0.189 0.150 0.230 0.010 0.016 0 MAX. 0.068 0.0098 0.061 0.019 0.0098 0.196 0.157 0.244 0.016 0.035 8 MILLIMETERS MIN. 1.55 0.102 1.40 0.33 0.191 4.80 3.81 5.84 0.25 0.41 0 MAX. 1.73 0.249 1.55 0.49 0.249 4.98 3.99 6.20 0.41 0.89 8
BASE PLANE 1 ALL RADII: 0.005" TO 0.01"
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h x 45 B e A2 A D A1
SEATING PLANE
7 typ.
0.050 BSC
1.27 BSC
C L
Table 6: 8-pin SOIC (0.150") Package Characteristics
PARAMETER Thermal Impedance, Junction to Free-Air 8-pin 0.150" SOIC Lead Inductance, Self Lead Inductance, Mutual Lead Capacitance, Bulk SYMBOL JA L11 L12 C11 CONDITIONS/DESCRIPTION Air flow = 0 m/s Corner lead Center lead Any lead to any adjacent lead Any lead to VSS TYP. 110 2.0 1.6 0.4 0.27 UNITS C/W nH nH pF
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Ordering Information
DEVICE NUMBER PACKAGE TYPE 8-pin (0.150") SOIC (Small Outline Package) 8-pin (0.150") SOIC (Small Outline Package) OPERATING TEMPERATURE RANGE 0C to 70C (Commercial) 0C to 70C (Commercial) SHIPPING CONFIGURATION Tape and Reel Tubes
ORDERING CODE
11640-xxx 11640-xxx
FS6284-01 FS6284-01
Copyright (c) 2000 American Microsystems, Inc.
Devices sold by AMI are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only. AMI makes no warranty, express, statutory implied or by description, regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. AMI makes no warranty of merchantability or fitness for any purposes. AMI reserves the right to discontinue production and change specifications and prices at any time and without notice. AMI's products are intended for use in commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment, are specifically not recommended without additional processing by AMI for such applications.
American Microsystems, Inc., 2300 Buckskin Rd., Pocatello, ID 83201, (208) 233-4690, FAX (208) 234-6796, WWW Address: http://www.amis.com E-mail: tgp@amis.com
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