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| Integrated Circuit Systems, Inc. Obsolete ICS9118-01 ICS9118-02 Frequency Generator for Digital Video Systems General Description The ICS9118-01 and ICS9118-02 are low-cost, highperform-ance clock generators designed to support digital video sys-tems. 27 MHz VIDEO, 1.8 MHz UART and AUDIO clocks are generated from the recovered 27 MHz signal. The on-chip crystal oscillator can be used in conjunction with an exter-nal D/A conversation circuit to provide 130 ppm clock recovery using a standard 27 MHz crystal (contact ICS for application details). The audio clock is synthesized from 27 MHz using a high accuracy, low jitter PLL to meet the synchronization and -96dB signal-to-noise ratios required by 16-bit DSP systems. Fast output clock edge rates minimize board-induced jitter. * * * * * * Features Generates 27 MHz VIDEO, 1.8 MHz UART and synchronous AUDIO codec clocks Selectable AUDIO clock supports 256x and 384x over-sampling of 16.00, 22.05, 24.00, 32.00, 44.10 and 48.00 kHz On-chip crystal oscillator enables 27 MHz clock recovery 80ps one sigma jitter maintains 16-bit performance 3.0V - 5.5V supply range 14-pin, 150-mil SOIC package Pin Configuration Applications * Specifically designed to support the high performance clocking requirements of digital video set-top and multi-media systems Functionality VDD=3.0-5.5V, TEMP=0-70 X1, X2 (MHz) 27.00 27.00 27.00 27.00 27.00 27.00 27.00 27.00 FS [2:0] 000 001 010 011 100 101 110 111 AUDIO 01 (MHz) Tristate 4.096 5.644 6.144 8.192 11.289 12.288 Low AUDIO 02 (MHz) Tristate 6.144 8.467. 2 9.216 12.288 16.934. 2 18.432 Low REF (MHz) Tristate 27.00 27.00 27.00 27.00 7.00 27.00 Low UART (MHz) Tristate 1.8620 1.8620 1.8620 1.8620 1.8620 1.8620 Low 14-Pin SOIC ICS9118-02 Obsolete Block Diagram 9118-01 9118-02 RevB 7/27/99 PRODUCT PREVIEW documents contain information on products in the formative or design phase development. Charactersitic data and other specifications are design goals. ICS reserves the right to change or discontinue these procucts without notice. ICS9118-01 ICS9118-02 Obsolete Pin Descriptions for ICS9118-01 PIN NUMBER 1 2 3,4 5,6,14 7 8 9 10,11 12 13 PIN NAME X2 X1 VSS FS(0:2) N/C N/C AUDIO VDD UART REF TYPE OUT IN PWR IN OUT PWR OUT OUT DESCRIPTION XTAL output which includes XTAL load capacitance. XTAL or external reference frequency input. This input includes XTAL load capacitance and feedback bias norminally 27.0MHz Ground for logic, PCLK and fixed frequency output buffers. Frequency multiplier select pins. See Functionality table. These inputs have internal pullup devices. Not internally connected. Not internally connected. Audio clock output. See Functionality table. Power for logic, PCLK and fixed frequency output buffers. UART clock output fixed out 1.8620MHz. Video clock output fixed out 27.00MHz. 2 Obsolete ICS9118-01 ICS9118-02 Absolute Maximum Ratings AVDD, VDD referenced to GND ...................................................................... 7V Operating temperature under bias ................................................ 0oC to +70oC Storage temperature .................................................................. -65oC to +150oC 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. Electrical Characteristics at 3.3V Operating VDD = +3.0 V to +3.7V; TA = 0 C to 70oC unless otherwise stated 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 Pull-up Resistor Value Rise Time Fall Time Lock Time Duty Cycle Duty Cycle Jitter, One Sigmea Jitter, Absolute Jitter, One Sigma Jitter, Absolute OutputMean Frequency Accuracy vs.Target Power-up Time Crystal Input Capacitance SYMBOL VIL VIH IIL IIH VOL* VOH* IOL* IOH* ICC Rpu* Tr* Tf* T L* Dt* Dt* Tj1s* Tjab* Tj1s* Tjab* Foa* Tpu* Cinx* DC Characte ris tics TEST CONDITIONS VIN=0V VIN=VDD IOL=+10mA IOH=-10mA V=0.8V V=2.4V VDD=3.3V10% AC Characteristics 15pF load 0.8 to 2.0V 15pF load, 2.0 to 0.8V 15pF load, 20%to 80% 15pF load @50% of VDD; Except UART 15pF load@50% of VDD; Except UART Audio Audio REFCLK, UART REFCLK, UART With 27.0 MHz input From VDD=1.6V to 1st crossing of Audio Select. VDD supply Ramp <40ms. X1 (Pin 1) X2 (Pin 8) MIN 2.0 2. 4 20.0 45.0 40.0 TYP -10.0 0.15 3.0 35.0 -20.0 14.0 400.0 1.0 1.0 50.0 45.0 50.0 MAX 0. 8 -18 5.0 0.4 -10.0 25.0 800.0 1.5 1.5 10.0 55.0 50.0 80.0 +300.0 UNITS V V mA mA V V mA mA mA k ohm ns ns ms % % ps ps % % ppm ms pF -300.0 1.0 -80.0 2.5 18.0 3.0 +5.0 +80.0 4.5 *Parameter is guaranteed by design and characterization. Not 100% tested in production. 3 ICS9118-01 ICS9118-02 Obsolete 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 Pull-up Resistor Value Rise Time Fall Time Lock Time Duty Cycle Duty Cycle Jitter, One Sigma Jitter, Absolute Jitter, One Sigma Jitter Absolute Output Mean Frequency Accuracy vs. Target Power-up Time Crystal Input Capacitance SYMBOL VIL VIH IIL IIH VOL* VOH* IOL* IOH* IDD* Rpu* Tr* Tf* TL* Dt* Dt* Tj1s* Tjab* Tj1s* Tjab* Foa* Tpu* Cinx* VDD = +4.5 to +5.5 V, TA = 0 to 70oC unless otherwise stated DC Characteristics TEST CONDITIONS MIN 2.0 2.7 25.0 TYP 8.3 0.15 4.1 45.0 -53.0 22.0 400.0 1.0 1.0 45.0 40.0 -300 1.0 -5.0 -80.0 2.5 18 50.0 45.0 50.0 MAX 0.8 -18.0 5.0 0.4 -35.0 30 800.0 1. 5 1.5 10.0 55.0 50.0 80.0 +300 3 +5 +80.0 4.5 UNITS V V A A V V mA mA mA k ohm ns ns ms % % ps ps % % ppm ms pF VIN=0V VIN=VDD IOL=+10mA IOH=-30mA VOL=0.8V VOH=2.4V Unloaded AC Characteristics 15pF load 0.8 to 2.0V 15pF load 2.0 to 0.8V 15pF load, 20% to 80% 15pF load @ 50% of VDD; Except UART 15pF load @ 50% of VDD; UART only Audio Audio REFCLK, UART REFCLK, UART With 14.318 MHz input From VDD=1.6V to 1st crossing. VDD supply Ramp <40ms. X1 (Pin 1), X2 (Pin 8) 4 Obsolete ICS9118-01 ICS9118-02 14 Pin SOIC Package Ordering Information ICS9118M-01 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 PRODUCT PREVIEW documents contain information on products in the formative or design phase development. Charactersitic data and other specifications are design goals. ICS reserves the right to change or discontinue these procucts without notice. |
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