 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| Integrated Circuit Systems, Inc. ICS9120-56 Frequency Timing Generator for EtherNet & Hard Drives General Description The ICS9120-56 is a high performance frequency generator designed to support hard disk drive and EtherNet systems. It offers all clock frequencies required for the servo and decoder sections of these devices. These frequencies are synthesized from a single 25.00 MHz on-chip oscillator. High accuracy, low jitter PLLs meet the 100 ppm frequency tolerance required by these systems. Fast output clock edge rates minimize board induced jitter. Features * * * * * * Single 25.00 MHz crystal or system clock reference 100ps one sigma jitter maintains 16-bit performance Output rise/fall times less than 2.0ns On-chip loop filter components 3.3V-5V supply range 8-pin, 150-mil SOIC Applications * Pin Configuration * Specifically designed to support the high performance requirements of high speed EtherNet systems using 10Base-T/100Base-TX Integrataed PHYceiver. Designed to support the requirements for high performance hard drives. 8-Pin SOIC Block Diagram 9120-56 Rev A 040697P ICS9120-56 Pin Descriptions for ICS9120-56 PIN NUMBER 1 2 3 4 5 6 7 8 PIN NAME X1 VDD GND CLK1 CLK2 CLK3 REF X2 TYPE Input Power Power Output Output Output Output Output DESCRIPTION Crystal or external clock source. Has feedback bias for crystal, and internal crystal load capacitors to GND. +Power supply input. Ground return for Pin 2. 40.00 M Hz clock output. 22.5 MHz output clock. 20.00 M Hz output clock. Reference clock Crystal output drive, includes internal crystal load capacitor to GND. 2 ICS9120-56 Absolute Maximum Ratings Supply Voltage .......................................................................................................... 7.0 V Logic Inputs ....................................................................... GND -0.5 V to VDD +0.5 V Ambient Operating Temperature ............................................................. 0C to +70C Storage Temperature ........................................................................... -65C to +150C Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications only and functional operation of the device at these or any other conditions above those listed in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability. Electrical Characteristics at 3.3 V VDD = +3.0 to +3.7 V, TA = 0OC-70 oC unless otherwise stated DC Characteristics PARAMETER Input Low Voltage1, X12 Input High Voltage1, X12 Output Low Voltage Output High Voltage Output Low Current Output High Current Supply Current Rise Time1 Fall Time1 Duty Cycle1 Duty Cycle1 Jitter, One Sigma1 Jitter Absolute1 Jitter, One Sigma Jitter Absolute Input Frequency1 Output Frequency Range1 Output Mean Frequency1 Accuracy vs. Target Power-up Time1,3 Crystal Input Capacitance 1 1 1 SYMBOL VIL VIH VOL VOH IOL IOH IDD Tr Tf Dt Dt Tjis Tjab Tjis Tjab FI Fo Foa Tpu Cinx TEST CONDITIONS MIN 2.0 TYP MAX 0.8 UNITS V V V V mA mA mA ns ns % % ps ps % % MHz MHz ppm ms pF IOL=6.0mA IOH=4.0mA VOL=0.2VDD VOH=0.7VDD Unloaded VDD 5.5V AC Characteristics 0.85VDD 15.0 0.05VDD 0.94VDD 24 -13 16 0.1VDD -8.0 30.0 2.3 1.5 55 65 200 500 3 4 30 48 100 10 15pF load 0.8 to 2.0V 15pF load 2.0 to 0.8V 15pF load @ 1.5V VDD Except REFCLK 15pF load @ 1.5V VDD Except REFCLK For all frequencies except REFCLK For all frequencies except REFCLK REFCLK only REFCLK only 0.8 45 55 50 6 120 -500 310 0.9 1.9 1 1.6 With 25.00MHz input 0 to 40.0 MHz/1ms Ramp. X1 (Pin 1), X2 (Pin 8) -100 0 7 16 1: Parameter is guaranteed by design and characterization. Not 100% tested in production. 2: For direct drive of X1 input. 3. 1ms Ramp @ 1.4V to 1 st crossing. 3 ICS9120-56 Electrical Characteristics at 5.0 V VDD = +4.5 to 5.5 V, TA = 0OC-70oC unless otherwise stated DC Characteristics PARAMETER Input Low Voltage , X1 Input High Voltage1, X12 Output Low Voltage Output High Voltage Output Low Current Output High Current Supply Current Rise Time1 Fall Time1 Rise Time1 Fall Time1 Duty Cycle1 Duty Cycle1 Jitter, One Sigma1 Jitter Absolute1 Jitter, One Sigma 1 1 1 2 SYMBOL VIL VIH VOL VOH IOL IOH IDD Tr Tf Tr Tf Dt Dt Tjis Tjab Tjis Tjab FI Fo Foa Tpu Cinx TEST CONDITIONS MIN 2.0 TYP MAX 0.8 UNITS V V V V mA mA mA ns ns IOL=10mA IOH=-30mA VOL=0.8 VOH=2.4 Unloaded VDD 5.5V AC Characteristics 2.4 25 0.15 3.7 45 -53 25 0.7 0.5 2.0 1.4 0.4 -35 50 1.5 1.5 4.0 4.0 55 65 100 400 4 5 50 80 100 10 Jitter Absolute Input Frequency1 Output Frequency Range1 Output Mean Frequency1 Accuracy vs. Target Power-up Time1,3 Crystal Input Capacitance1 15pF load 0.8 to 2.0V 15pF load 2.0 to 0.8V 15pF load 20% to 80% 15pF load 80% to 20% 15pF load @ 1.4V REFCLK 15pF load @ 1.4V REFCLK For all frequencies except REFCLK For all frequencies except REFCLK REFCLK only REFCLK only 45 55 51 62 50 % % ps ps % % MHz MHz ppm ms pF -400 200 1.2 2.2 1 1.6 With 25.00MHz input 0 to 40.0 MHz; 1ms Ramp. X1 (Pin 1), X2 (Pin 8) -100 0 6 16 1: Parameter is guaranteed by design and characterization. Not 100% tested in production. 2: For direct drive of X1 input. 3. 1ms Ramp @ 1.4V to 1st crossing. 4 ICS9120-56 0.154 0.031 0.024 0.008 0.194 0.063 0.015 0.016 0.050 0.006 0.004 0.238 0.025 8-Pin SOIC Package Ordering Information ICS9120M-56 Example: ICS XXXX M-PPP Pattern Number (2 or 3-digit number for parts with ROM code pattern) Package Type M =SOIC Device Type (consists of 3 or 4-digit numbers) Prefix ICS, AV=Standard Device 5 |
Price & Availability of ICS9120-56
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |