FS6322-05
FS6322-05FS6322-05
FS6322-05
Three-PLL Clock Ge nerator IC
Three-PLL Clock Ge nerator ICThree-PLL Clock Ge nerator IC
Three-PLL Clock Ge nerator IC
1.0 Features
• Three PLLs with deep reference, feedback, and post
dividers to provide precision clock frequencies
• Multiple outputs provide several clocking options
• Outputs may be tristated for board testing
• S0, S1, and S2 inputs modify output frequencies for
design flexibility
• 3.3V operation
• Accepts 5 to 30MHz crystals (see Frequency Table
for specific reference frequencies required)
• Custom frequency patterns, pinouts, and packages
are available. Contact your local AMI Sales Repre-
sentative for more information.
2.0 Description
The FS6322 is a ROM-based CMOS clock generator IC
designed to minimize cost and component count in a va-
riety of electronic systems.
Thr ee low-jitter phase-locked loops (PL Ls ) driv e u p to five
low-skew clock outputs to provide a high degree of flexi-
bility. The device is packaged in a 16-pin SOIC to mini-
mize board space.
High-resolution divider capability permits generation of
desired frequencies.
Figure 1: Pin Configuration
116
2
3
4
5
6
7
8
15
14
13
12
11
10
9
CLK_C
VDD
VSS
XIN
XOUT/REFIN
CLK_E
CLK_D
CLK_F CLK_B
CLK_A
VSS
S0
S1
VDD
S2
OE
FS6322
16-pin (0.150”) SOIC
Figure 2: Block Diagram
FS6322-05
Crystal
Oscillator
XOUT
XIN
PLL A
PLL B
PLL C
Clock
Logic
CLK_E
CLK_F
CLK_A
CLK_B
CLK_C
CLK_D
S2:S0
OE
Device
Control
2
FS6322-05
FS6322-05FS6322-05
FS6322-05
Three-PLL Clock Ge nerator IC
Three-PLL Clock Ge nerator ICThree-PLL Clock Ge nerator IC
Three-PLL Clock Ge nerator IC
Table 1: 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
1 DO CLK_C C clock output
2 P VDD Power supply (3.3V nominal – see version specific information)
3 P VSS Ground
4 AI XOUT / REFIN Crystal oscillator drive / external reference input
5 AO XIN Crystal oscillator feedback
6 DO CLK_E E clock output
7 DO CLK_D D clock output
8 DO CLK_F F clock output
9 DO CLK_B A clock output
10 DO CLK_A B clock output
11 P VSS Ground
12 DIUS0 Frequency select control input
13 DIUS1 Frequency select control input
14 P V DD Power supply (5V to 3.3V)
15 DIUS2 Frequency select control input
16 DIUOE Output enable input: logic-high enables outputs; logic-low tristates outputs (high impedance)
Table 2: Frequency Table – FS6322-05 (3.3volt)
(all frequencies in MHz)
S2 S1 S0 FREF CLK_A
(pin 10) CLK_B
(pin 9) CLK_C
(pin 1) CLK_D
(pin 7) CLK_E
(pin 6) CLK_F
(pin 8)
00016.0000 25.00000 10.00000 1.84320 0.00000 0.00000 0.00000
00111.0592 24.57600 11.28960 1.84320 33.33336 25.00002 20.00002
01013.5000 36.86400 18.43200 16.93440 27.00000 33.86880 54.00000
01113.5000 33.86880 16.93440 16.93440 27.00000 33.86880 54.00000
10013.5000 33.86880 73.72800 49.15200 27.00000 27.00000 54.00000
10113.5000 33.86880 67.73760 45.15840 27.00000 27.00000 54.00000
11013.5000 33.86880 49.15200 32.76800 27.00000 27.00000 54.00000
11113.5000 33.86880 36.86400 24.57600 27.00000 27.00000 54.00000
3
FS6322-05
FS6322-05FS6322-05
FS6322-05
Three-PLL Clock Ge nerator IC
Three-PLL Clock Ge nerator ICThree-PLL Clock Ge nerator IC
Three-PLL Clock Ge nerator IC
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, dc (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 TJ150 °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 3.3 3.6 V
Ambient Operating Temperature Range TA070°C
Crystal Resonator Frequency fXIN 530MHz
Output Load Capacit ance CL20 pF
4
FS6322-05
FS6322-05FS6322-05
FS6322-05
Three-PLL Clock Ge nerator IC
Three-PLL Clock Ge nerator ICThree-PLL Clock Ge nerator IC
Three-PLL Clock Ge nerator IC
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 fXTAL = 27MHz; CL = 0pF, VDD = 3.3V
FS6322-05: S[2:0]=[100] 20 mA
Digital Inputs (OE, S2, S0)
High-Level Input V olt age VIH 2.4 VDD+0.3 V
Low-Level Input V oltage VIL VSS-0.3 0.8 V
High-Level Input Current IIH VIN = VDD -1 1 µA
Low-Level Input Current (pul l-up) IIL VIN = 0V -8 µA
Digital Inputs (S1)
High-Level Input V olt age VIH 2.4 VDD+0.3 V
Low-Level Input V oltage VIL VSS-0.3 0.8 V
High-Level Input Current IIH VIN = VDD -1 1 µA
Low-Level Input Current (pul l-up) IIL VIN = 0V -16 µA
Crystal Oscillator
Crystal Loadi ng Capaci tance CL(xtal) As seen by a crystal connect ed to XIN and
XOUT 16 pF
Crystal Dri ve Level RXTAL=20Ω200 uW
Clock Outputs (CLKA, CLKB)
Output Current High IOH VO = 2.4V -4 mA
Output Current Low IOL VO = 0.4V 4 mA
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. 40 mA
zOH VO = 0.5VDD; output drivi ng hi gh 45
Output Impedance * zOL VO = 0.5VDD; output driving low 45 Ω
5
FS6322-05
FS6322-05FS6322-05
FS6322-05
Three-PLL Clock Ge nerator IC
Three-PLL Clock Ge nerator ICThree-PLL Clock Ge nerator IC
Three-PLL Clock Ge nerator IC
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 CLOCK
(MHz) MIN. TYP. MAX. UNITS
Clock Output (CLK_X)
Duty Cycle * Crystal oscillat or deri ved outputs
Measured @1.4V; CL = 20pF 43 51 57 %
Duty Cycle * PLL deri ved out puts
Measured @1.4V; CL = 20pF 45 51 55 %
Rise Time * trVO = 0.4V to 2.4V; CL = 20pF 2.2 ns
Fall Time * tfVO = 2.4 V to 0.4V; CL = 20pF 1.8 ns
Jitter, Period (RMS) * tj(1σ)From rising edge to next risi ng edge at VDD/2, CL =
20pF 50 ps
Jitter, Period (peak-peak) * tj(∆P) From rising edge to next rising edge at VDD/2, CL =
20pF 400 ps
Jitter, Cumulative (RMS)* tj(LT)
PLL-derived outputs
From 0-500µs at VDD/2, CL = 20pF
compared to ideal clock source 100 ps
Phase Noise * PLL derived outputs
@ 100KHz offset from fundamental -80 dbC/Hz
6
FS6322-05
FS6322-05FS6322-05
FS6322-05
Three-PLL Clock Ge nerator IC
Three-PLL Clock Ge nerator ICThree-PLL Clock Ge nerator IC
Three-PLL Clock Ge nerator IC
4.0 Package Information
Table 7: 16-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 0.386 0.393 9.80 9.98
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°
Be
DA
1
SEATING PLANE
HE
16
1ALL RADII:
0.005" TO 0.01"
BASE PLANE
A
2
C
L
θ
7° typ.h x 45°
A
AMERICAN MICROSYSTEMS, INC.
R
Table 8: 16-pin SOIC (0.150") Package Characteristics
PARAMETER SYMBOL CONDITIONS/DESCRIPTION TYP. UNITS
Thermal Impedance, Junction to Free-Air
16-pin 0.150” SOIC ΘJA Air flow = 0 m/s 95 °C/W
Corner lead 4.0
Lead Inductanc e, Self L11 Center lead 3.0 nH
Lead Inductanc e, Mutual L12 Any lead to any adjacent lead 0.4 nH
Lead Capacitance, Bulk C11 A ny lead to VSS 0.5 pF
7
FS6322-05
FS6322-05FS6322-05
FS6322-05
Three-PLL Clock Ge nerator IC
Three-PLL Clock Ge nerator ICThree-PLL Clock Ge nerator IC
Three-PLL Clock Ge nerator IC
5.0 Ordering Information
ORDERING CODE DEVICE NUM BER PACKAGE TYPE OPERATING
TEM PERATURE RANGE SHIPPING
CONFIGURATION
11825-808 FS6322-05 16-pin (0.150”) S OIC
(Small Outl i ne Package) 0°C to 70°C (Commercial) Tape and Reel
11825-818 FS6322-05 16-pin (0.150”) S OIC
(Small Outl i ne Package) 0°C to 70°C (Commercial) Tubes
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
