This document contains information on a preproduction product. Specifications and information herein are subject to change without notice. 2.26.02
FS6385
FS6385FS6385
FS6385
Triple PLL Clock Generator IC
Triple PLL Clock Generator ICTriple PLL Clock Generator IC
Triple PLL Clock Generator IC
ISO9001
ISO9001ISO9001
ISO9001
1.0 Features
• Triple phase-locked loop (PLL) device with three out-
put 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
Figure 1: Pin Configuration
1 8
2
3
4
7
6
5
CLKA
VSS
XIN
XOUT
VDD
CLKC
CLKB
SEL
FS6385
8-pin (0.150″) SOIC
2.0 Description
The FS6385 is a monolithic CMOS clock generator IC
designed to m inim ize cost a nd com ponen t count in digi tal
video/audio systems.
Three high-resolution phase-locked loops generate three
output clocks (CLKA, CLKB and CLKC) through an array
of post-dividers. All frequencies are ratiometrically de-
rived from the crystal oscillator frequency. The locking of
all the output frequencies together can eliminate unpre-
dictable artifacts in video systems and reduce electro-
magnetic interference (EMI) due to frequency harmonic
stacking.
Table 1: Crystal / Output Frequencies
DEVICE fXIN (MHz) CLKA (MHz) CLKB (MHz) CLKC (MHz)
36.8640(SEL=VSS)
(fXIN* 1024 / 375)
FS6385-01 13.5000 16.9344(SEL=VDD)
(fXIN* 784 / 625)
16.9344
(fXIN* 784 / 625) 27.000
(fXIN * 2)
NOTE: Contact AMI for custom PLL frequencies
Figure 2: Block Diagram
CRYSTAL
OSC.
FS6385
XOUT
XIN
CLKC
CLKA
DIVIDER
ARRAY
PLL
PLL
CLKB
SEL
PLL
22.26.02
FS6385
FS6385FS6385
FS6385
Triple PLL Clock Generator IC
Triple PLL Clock Generator ICTriple PLL Clock Generator IC
Triple PLL Clock Generator IC
ISO9001
ISO9001ISO9001
ISO9001
Table 2: Pin Descriptions
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 TYPE NAME DESCRIPTION
1DOCLKAClock Output A
2 P VSS Ground
3 AI XIN Crystal Oscillator Feedback / External Clock Input
4 AO XOUT Crystal Oscillator Drive
5DOCLKBClock Output B
6DOCLKCClock Output C
7 P VDD Power (+3.3 volts)
8DI
USEL Select Input (see Table 1)
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 SYMBOL MIN. MAX. UNITS
Supply Voltage (VSS = ground) VDD VSS-0.5 7 V
Input Voltage, dc VIVSS-0.5 VDD+0.5 V
Output Voltage, dc VOVSS-0.5 VDD+0.5 V
Input Clamp Current, dc (V I < 0 or VI > VDD)I
IK -50 50 mA
Output Clamp Current, dc (VI < 0 or VI > VDD)I
OK -50 50 mA
Storage Temperature Range (non-condensing) TS-65 150 °C
Ambient Temperature Range, Under Bias TA-55 125 °C
Junction Temperature TJ125 °C
Lead Temperature (soldering, 10s) 260 °C
Input Static Disc harge Voltage Protection (MIL-STD 883E, Method 3015.7) 2 kV
CAUTION: ELECTROSTATIC SENSITIVE DEVICE
Permanent damage res ulting in a loss of functi onality or performance may occur if this devi ce is subjected to a high-energy elec-
trostatic discharge.
Table 4: Operating Conditions
PARAMETER SYMBOL CONDITIONS/DESCRIPTION MIN. TYP. MAX. UNITS
Supply Voltage VDD 3.3V ± 10% 3.0 3.3 3.6 V
Ambient Operating Temperature Range TA070°C
32.26.02
FS6385
FS6385FS6385
FS6385
Triple PLL Clock Generator IC
Triple PLL Clock Generator ICTriple PLL Clock Generator IC
Triple PLL Clock Generator IC
ISO9001
ISO9001ISO9001
ISO9001
Table 5: DC Electrical Specifications
Unless otherwise stated, VDD = 3.3V ± 10%, no load on any output, and ambient temperature range TA = 0°C to 70°C. Parameters denoted with an asterisk ( * ) represent nominal characterization
data and are not production tested to any specific limits. Where given, MIN and MAX characterization data are ± 3σ from typical. Negative currents indicate current flows out of the device.
PARAMETER SYMBOL CONDITIONS/DESCRIPTION MIN. TYP. MAX. UNITS
Overall
Supply Current, Dynamic, with Loaded
Outputs IDD 30 mA
Crystal Oscillator
Crystal Loadi ng Capaci tance CL(xtal) As seen by a crystal connected to XIN and
XOUT 16 pF
Clock Outputs (CLKA, CLKB, CLKC)
zOH VO = 0.5VDD; output drivi ng hi gh 45
Output Impedance * zOL VO = 0.5VDD; output dri ving l ow 45 Ω
Short Circuit S ource Current * IOSH VO = 0V; shorted for 30s, max. -35 mA
Short Circuit S i nk Current * IOSL VO = 3.3V; shorted for 30s, max. 35 mA
Table 6: AC Timing Specifications
Unless otherwise stated, VDD = 3.3V ± 10%, no load on any output, and ambient temperature range TA = 0°C to 70°C. Parameters denoted with an asterisk ( * ) represent nominal characterization
data and are not production tested to any specific limits. Where given, MIN and MAX characterization data are ± 3σ from typical.
PARAMETER SYMBOL CONDITIONS/DESCRIPTION MIN. TYP. MAX. UNITS
Overall
Synthesis Error (unless otherwise noted in Frequency Table) 0 ppm
Clock Outputs (CLKA, CLKB, CLKC)
Duty Cycle * Ratio of high pulse width (as measured from rising edge to next falling
edge at VDD/2) to one clock period 45 55 %
Jitter, Period (peak-peak) * tj(∆P) From rising edge to next rising edge at VDD/2, CL =
10pF 300 ps
Rise Time * trVDD = 3.3V; VO = 0.3V to 3.0V; CL = 10pF 3 ns
Fall Time * tfVDD = 3.3V; VO = 3.0V to 0.3V; CL = 10pF 2.5 ns
42.26.02
FS6385
FS6385FS6385
FS6385
Triple PLL Clock Generator IC
Triple PLL Clock Generator ICTriple PLL Clock Generator IC
Triple PLL Clock Generator IC
ISO9001
ISO9001ISO9001
ISO9001
4.0 Package Information
Table 7: 8-pin SOIC (0.150") Package Dimensions
DIMENSIONS
INCHES MILLIMETERS
MIN. MAX. MIN. MAX.
A 0.061 0.068 1.55 1.73
A1 0.004 0.0098 0.102 0.249
A2 0.055 0.061 1.40 1.55
B 0.013 0.019 0.33 0.49
C 0.0075 0.0098 0.191 0.249
D 0.189 0.196 4.80 4.98
E 0.150 0.157 3.81 3.99
e 0.050 BSC 1.27 BSC
H 0.230 0.244 5.84 6.20
h 0.010 0.016 0.25 0.41
L 0.016 0.035 0.41 0.89
Θ0°8°0°8°
B
DA
1
SEATING
PLANE
HE
8
1ALL RADII:
0.005" TO 0.01"
BASE
PLANE
A
2
e
AMERICAN MICROSYSTEMS, INC.
A
R
C
L
θ
7° typ.h x 45°
Table 8: 8-pin SOIC (0.150") Package Characteristics
PARAMETER SYMBOL CONDITIONS/DESCRIPTION TYP. UNITS
Thermal Impedance, Junction to Free-Air
8-pin 0.150” SOIC ΘJA Air flow = 0 m/s 110 °C/W
Corner lead 2.0
Lead Inductanc e, Self L11 Center lead 1.6 nH
Lead Inductanc e, Mutual L12 Any lead to any adjacent l ead 0.4 nH
Lead Capacitance, Bulk C11 Any lead to VSS 0.27 pF
52.26.02
FS6385
FS6385FS6385
FS6385
Triple PLL Clock Generator IC
Triple PLL Clock Generator ICTriple PLL Clock Generator IC
Triple PLL Clock Generator IC
ISO9001
ISO9001ISO9001
ISO9001
5.0 Ordering Information
ORDERING CODE DEVICE NUM BER P ACKAGE TYPE OPERATING
TEMPERATURE RANGE SHIPPING
CONFIGURATION
11825-809 FS6385-01 8-pin (0.150”) S OIC
(Small Outl i ne Package) 0°C to 70°C (Commercial) Tape and Reel
Copyright © 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 re-
serves 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 require-
ments, or high reliability applications, such as military, medical life-support or life-sustaining equipment, are specifically not recom-
mended 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
