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| Integrated Circuit Systems, Inc. ICS9120-45 Low-Cost 8-Pin Frequency Generator General Description The ICS9120-45 is a high performance frequency generator designed to support the clock requirements of communication and audio interfaces. High accuracy, low-jitter PLLs meet the -96dB signal-tonoise ratios required by 16-bit audio systems. Fast output clock edge rates minimize board induced jitter. The on-chip XTAL oscillator accuracy is better than 100ppm for an AT cut, 18pF load crystal with initial accuracy of ppm plus TC, aging and load variation of 20ppm each assuming 33pF 5% external load capacitors. Features * * * * * * * * Generates 32MHz, 40MHz and 48MHz Single 10 MHz crystal reference 49.92 MHz accuracy tracks 40.32 MHz reference 80ps one sigma jitter maintains 16-bit performance Output rise/fall times less than 1.5ns On-chip loop filter components 3.0-5.5V supply range 8-pin, 150-mil SOIC package Pin Configuration Block Diagram 8 Pin SOIC This data sheet (ICS9120-45) is an addedum to the existing ICS9120-08/09 data sheet. All information in this data sheet supersedes the data found in the orginal ICS9120-08/09 data sheet. 9120-45 Rev B 05/23/97 ICS reserves the right to make changes in the device data identified in this publication without further notice. ICS advises its customers to obtain the latest version of all device data to verify that any information being relied upon by the customer is current and accurate. ICS9120-45 Pin Descriptions PIN NUMBER PIN NAME TYPE DESCRIPTION 1 2 3 4 5 6 7 8 X1 VDD 40.00 50.00 48.00 GND 32.00 X2 MHz MHz MHz MHz Input Power Output Output Output Power Output Output 10.00 MHz input from crystal. +Power supply input. 40 MHz clock output. 50 MHz clock output. 48 MHz clock output. Ground return for Pin 2. 32 MHz clock output. 10.00 MHz output. Note: The 10.00 MHz crystal that is connected to pin 1 and 8 is a parallel resonant component that is designed to operate into a 8pF capacitive load. This device is a 5V power supply device. 2 ICS9120-45 Absolute Maximum Ratings AVDD,VDD referenced to GND . . . . . . . . . . . . . . . . 7V Operating temperature under bias. . . . . . . . . . . . . . . . 0C to +70C Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . -65C to +150C Voltage on I/O pins referenced to GND. . . . . . . . . . . GND -0.5V to VDD +0.5V Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 Watts Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability. VDD = +4.5 to +5.5 V, TA = 0-70oC unless otherwise stated Electrical Characteristics at 5 V PARAMETER Input Low Voltage Input High Voltage Input Low Current Input High Current Output Low Voltage Output High Voltage Output Low Current Output High Current Supply Current Supply Current Pull-up Resistor Value Rise Time 0.8 to 2.0V Fall Time 2.0 to 0.8V Rise Time 20% to 80% Fall Time 80% to 20% Duty Cycle Duty Cycle Jitter, One Sigma Jitter, Absolute Jitter, One Sigma Jitter, Absolute Input Frequency Output Frequency Power-up Time Crystal Input Capacitance SYMBOL VIL VIH IIL IIH VOL* VOH* IOL* I OH* ICC ICC Rpu* Tr* Tf* Tr* Tf* Dt* Dt* Tjis* Tjab Tjis* Tjab Fi* Fo * Tpu* Cinx* DC Characteristics TEST CONDITIONS MIN 2.0 2.4 25.0 45.0 40.0 -700.0 -1.5 11.0 11.0 TYP -8.3 0.15 3.7 45.0 -53.0 22.0 180.0 400.0 0.9 0.7 1.8 1.4 50.0 50.0 85.0 380.0 266.0 380.0 14.0 5.5 5 MAX 0.8 -18.0 5.0 0.4 -35.0 50.0 500.0 800.0 2.0 1.5 3.25 2.5 55.0 60.0 700.0 600.0 1.5 17.0 42.0 12.0 UNITS V V A A V V mA mA mA A k ohm ns ns ns ns % % ps ps ps ns MHz MHz ms pF VIN=0V (For -09 only) VIN=VDD (For -09 only) IOL=+10mA IOH=-30mA VOL=0.8V VOH=2.4V Unloaded Unloaded (For -09 only) (For -09 only) AC Characteristics 15pF load 15pF load 15pF load 15pF load 15pF load @ 50% of VDD; Except REFCLK 15pf load @ 50% of VDD; REFCLK only For all frequencies except REFCLK For all frequencies except REFCLK REFCLK only REFCLK only 0 to 33.8 MHz X1 (Pin 1)# X2 (Pin 8; -08 only) * Parameter is guaranteed by design and characterization. Not 100% tested in production. 3 ICS9120-45 Electrical Characteristics at 3.3 V DC Characteristics PARAMETER Input Low Voltage Input High Voltage Input Low Current Input High Current Output Low Voltage Output High Voltage Output Low Current Output High Current Supply Current Supply Current Pull-up Resistor Value Rise Time 0.8 to 2.0V Fall Time 2.0 to 0.8V Rise Time 20% to 80% Fall Time 80% to 20% Duty Cycle Duty Cycle Jitter, One Sigma Jitter, Absolute Jitter, One Sigma Jitter, Absolute Input Frequency Output Frequency Power-up Time Crystal Input Capacitance SYMBOL VIL VIH IIL IIH VOL* VOH* IOL* IOH* ICC ICC(PD) Rpu* Tr* Tf* Tr* Tf* Dt* Dt* Tjis* Tjab Tjis* Tjab Fi* Fo* Tpu* Cinx* TEST CONDITIONS MIN 0.7VDD 0.85VDD 15.0 45.0 40.0 -900.0 -1.5 11.0 11.0 TYP -3.6 0.05VDD 0.94VDD 24.0 -13.0 13.0 50.0 620.0 1.5 1.0 2.2 1.5 50.0 45.0 100.0 380.0 266.0 380.0 14.3 5 MAX 0.2VDD -8.0 5.0 0.1 -8.0 32.0 110.0 900.0 4.0 3.0 4.0 3.0 55.0 60.0 900.0 600.0 1.5 15.0 38.0 UNITS V V A A V V mA mA mA A k ohm ns ns ns ns % % ps ps ps ns MHz MHz pF VIN=0V (For -09 only) VIN=VDD (For -09 only) IOL=6mA IOH=-4.0mA VOL=0.2VDD VOH=0.7VDD Unloaded Unloaded (For -09 only) (For -09 only) AC Characteristics 15pF load 15pF load 15pF load 15pF load 15pF load @ 50% of VDD; Except REFCLK 15pF load @ 50% of VDD; REFCLK only For all frequencies except REFCLK For all frequencies except REFCLK REFCLK only REFCLK only 0 to 33.8 MHz - 5.5 12.0 ms X1 (Pin 1)# X2 (Pin 8; -08 only) * Parameter is guaranteed by design and characterization. Not 100% tested in production. 4 ICS9120-45 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-45 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 ICS reserves the right to make changes in the device data identified in this publication without further notice. ICS advises its customers to obtain the latest version of all device data to verify that any information being relied upon by the customer is current and accurate. |
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