FS6312-71 Three-PLL Clock Generator IC 1.0 Features 2.0 * Three PLLs with deep reference, feedback, and post dividers to provide precision clock frequencies * Multiple outputs provide several clocking options * Outputs may be individually tristated for board testing by the OE_x pins * SUSPEND# pin completely powers down entire device * Package: 16-pin, 5.3mm (0.209") SSOP * Custom frequency patterns, pinouts, and packages are available. Contact your local AMI Sales Representative for more information. Description The FS6312 is a ROM-based CMOS clock generator IC designed to minimize cost and component count in a variety of electronic systems. Three low-jitter phase-locked loops (PLLs) drive up to five clock outputs to provide a high degree of flexibility. The device is packaged in a 16-pin SOIC to minimize board space. High-resolution divider capability permits generation of desired frequencies. Figure 1: Pin Configuration 1 16 OE_C VDD 2 15 SUSPEND# VSS 3 14 VDD XIN 4 13 SELECT XOUT 5 12 OE_A OE_D 6 11 VSS CLK_D 7 10 CLK_A OE_B 8 9 CLK_B FS6312-71 CLK_C Figure 2: Block Diagram OE x 4 XIN XOUT Crystal Oscillator CLK_A CLK_B PLL A PLL B CLK_C CLK_D PLL C SUSPEND# SELECT Clock Logic Device Control FS6312-71 This document contains information on a preproduction product. American Microsystems, Inc. reserves the right to change or discontinue this product without notice. ISO9001 2.28.02 FS6312-71 Three-PLL Clock Generator 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) 3 P VSS Ground Crystal oscillator feedback 4 AI XIN 5 AO XOUT Crystal oscillator drive 6 DI OE_D CLK_D output enable 7 DO CLK_D D clock output 8 DI OE_B CLK_B output enable 9 DO CLK_B A clock output 10 DO CLK_A B clock output 11 P VSS 12 DI OE_A Ground 13 DI SELECT 14 P VDD 15 DI SUSPEND# 16 DI OE_C CLK_A output enable Frequency select control input (see Table) Power supply (3.3V) Device SUSPEND (power-down) control; when low (logic 0) device is shut-down CLK_C output enable Table 2: Frequency Table - FS6312-71 (3.3volt) SELECT FREF (MHz) CLK_A (MHz) (pin 10) CLK_B (MHz) (pin 9) CLK_C (MHz) (pin 1) CLK_D (MHz) (pin 7) 0 14.31818 36.000 6.000 11.000 14.31818 1 14.31818 36.000 6.000 11.000 17.734475 (FREF * 706 / 570) 2 2.28.02 FS6312-71 Three-PLL Clock Generator 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 Supply Voltage, dc (VSS = ground) SYMBOL MIN. MAX. UNITS VDD VSS-0.5 7 V Input Voltage, dc VI VSS-0.5 VDD+0.5 V Output Voltage, dc VO VSS-0.5 VDD+0.5 V Input Clamp Current, dc (VI < 0 or VI > VDD) IIK -50 50 mA Output Clamp Current, dc (VI < 0 or VI > VDD) IOK -50 50 mA Storage Temperature Range (non-condensing) TS -65 150 C Ambient Temperature Range, Under Bias TA -55 Junction Temperature TJ Lead Temperature (soldering, 10s) Input Static Discharge Voltage Protection (MIL-STD 883E, Method 3015.7) 125 C 150 C 260 C 2 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 SYMBOL VDD Ambient Operating Temperature Range TA Output Load Capacitance CL CONDITIONS/DESCRIPTION 3.3V 10% MIN. TYP. MAX. UNITS 3 3.3 3.6 V 0 70 C 25 pF 3 2.28.02 FS6312-71 Three-PLL Clock Generator IC Table 5: DC Electrical Specifications Unless otherwise stated, VDD = 3.3V, no load on any output, and ambient temperature range TA = 0C to 70C. 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 3 from typical. Negative currents indicate current flows out of the device. PARAMETER SYMBOL Supply Current, Dynamic, with Loaded Outputs IDD CONDITIONS/DESCRIPTION MIN. TYP. MAX. UNITS Overall 25 mA 16 pF Crystal Oscillator Crystal Loading Capacitance CL(xtal) As seen by a crystal connected to XIN and XOUT Clock Outputs (CLK_x) High-Level Output Source Current * IOH VO = VDD - 0.8V -21 mA Low-Level Output Sink Current * IOL VO = 0.4V +10 mA Short-Circuit Output Source Current * IOH VO = 0V -30 mA Short-Circuit Output Sink Current * IOL VO = VDD +25 mA Table 6: AC Timing Specifications Unless otherwise stated, VDD = 3.3V, no load on any output, and ambient temperature range TA = 0C to 70C. 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 3 from typical. PARAMETER SYMBOL CONDITIONS/DESCRIPTION MIN. Ratio of high pulse width (as measured from rising edge to next falling edge at VDD/2) to one clock period 45 TYP. MAX. UNITS 55 % Clock Outputs (CLK_x) Duty Cycle * Jitter, Period (1 sigma) * tj(P) From rising edge to next rising edge at VDD/2 80 ps Rise Time * tr VDDO = 3.3V; VO = 0.4V to 2.4V; CL = 10pF 1.0 ns Fall Time * tf VDDO = 3.3V; VO = 2.4V to 0.4V; CL = 10pF 1.0 ns 4 2.28.02 FS6312-71 Three-PLL Clock Generator IC 4.0 Package Information Table 7: 16-pin 5.3mm (0.209") SSOP Package Dimensions 16 DIMENSIONS INCHES MIN. MILLIMETERS MAX. MIN. MAX. A 0.068 0.078 1.73 1.99 A1 0.002 0.008 0.05 0.21 A2 0.066 0.070 1.68 1.78 B 0.010 0.015 0.25 0.38 C 0.005 0.008 0.13 0.20 D 0.239 0.249 6.07 6.33 E e 0.205 0.212 0.0256 BSC 5.20 5.38 R E 1 B e 0.65 BSC H 0.301 0.311 7.65 7.90 L 0.022 0.037 0.55 0.95 0 8 0 8 H AME RICAN MICROSYSTE MS, INC. A2 D BASE PLANE A1 A C L SEATING PLANE 5 2.28.02 FS6312-71 Three-PLL Clock Generator IC 5.0 Ordering Information ORDERING CODE DEVICE NUMBER PACKAGE TYPE OPERATING TEMPERATURE RANGE SHIPPING CONFIGURATION 11825-806 FS6312-71 16-Pin 5.3mm (0.209") SSOP 0C to 70C (Commercial) Tape and Reel 11825-816 FS6312-71 16-Pin 5.3mm (0.209") SSOP 0C to 70C (Commercial) Tubes 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 6 2.28.02