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| PRELIMINARY INFORMATION I C R O C LOC K Description The ICS614-01 is a low cost, low jitter, high performance clock synthesizer for Intel's i752 graphics systems. It includes frequencies for video encoders and decoders. Using analog PhaseLocked Loop (PLL) techniques, the device accepts a 27 MHz fundamental mode crystal or clock input to produce multiple output clocks. The chip provides highly accurate video encoder and decoder clocks, as well as the 48 MHz necessary for the Intel graphics processor, and can produce a 24.576 MHz audio clock. See the ICS604 or ICS513 for 8 pin devices that supply 48 MHz from a 14.31818 MHz input. ICS614-01 16 pin Intel Graphics Clock Source Features * Packaged in 16 pin SOIC * Uses fundamental 27 MHz input crystal * Supports Intel i752 graphics chip, popular video encoders and decoders, and audio * Low jitter - 50 ps one sigma * Output Enable function tri-states outputs * 25mA output drive capability at TTL levels * Advanced, low power, sub-micron CMOS process * 5V10% core voltage. Inputs and outputs can run 3.3V (or 5V) for easy system interface Block Diagram VDD GND 2 2 Clock Synthesis and Control Circuitry VDDIO Output Buffer Output Buffer ASEL1:0 DSEL ACLK 28.636 MHz or 35.4689 MHz 14.318 MHz or 17.7344 MHz 48 MHz 13.5 MHz 27 MHz /2 Output Buffer Output Buffer 27 MHz crystal X1 X2 Crystal Oscillator /2 Output Buffer Output Buffer Output Enable (all outputs) 1 Revision 020199 Printed 11/14/00 Integrated Circuit Systems * 525 Race Street * San Jose *CA*95126* (408) 295-9800tel * (408) 295-9818fax MDS 614-01 B PRELIMINARY INFORMATION I C R O C LOC K Pin Assignment OE X2 X1/ICLK VDD GND DSEL 27M DCLK/2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 ASEL1 ASEL0 13.5M VDDIO GND ACLK DCLK 48MHz ICS614-01 16 pin Intel Graphics Clock Source ACLK Select Table for Audio and Square Pixel ASEL1 0 0 1 1 ASEL0 0 1 0 1 ACLK Off 29.4923 MHz 24.5454 MHz 24.576 MHz DCLK Select Table for NTSC/PAL DSEL 0 1 DCLK 35.4689 28.63636 DCLK/2 17.73445 14.31818 ICS614-01 All Clock frequencies are in MHz. 0=connect directly to ground 1=connect directly to VDDIO Pin Descriptions Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Name OE X2 X1/ICLK VDD GND DSEL 27M DCLK/2 48M DCLK ACLK GND VDDIO 13.5M ASEL0 ASEL1 Type I XO XI P P I O O O O O P P O I I Description Output Enable. Tri-states all output clocks when low. All running when high (VDDIO). Crystal connection. Connect to a 27 MHz fundamental parallel mode crystal. Crystal connection. Connect to a 27 MHz fundamental parallel mode crystal, or clock Connect to +5V. Connect to ground. Input select. Determines DCLK and DCLK/2 per table above. Must be VDDIO. Buffered crystal oscillator 27 MHz clock output. Amplitude = VDDIO. NTSC or PAL 4X subcarrier frequency per table above. Amplitude = VDDIO. 48.00 MHz clock output for Intel graphics processor. Amplitude = VDDIO. NTSC or PAL 8X subcarrier frequency per table above. Amplitude = VDDIO. Audio clock, or Square Pixel clock, per table above. Amplitude = VDDIO. Connect to ground. Connect to +5V or +3.3V. Amplitude of output clocks will match this voltage. Buffered crystal oscillator divided by two 13.5 MHz clock output. Amplitude = VDDIO. Input select 0 for ACLK. Determines ACLK frequency per table above. Must be VDDIO. Input select 1 for ACLK. Determines ACLK frequency per table above. Must be VDDIO. Key: I = Input; O = output; P = power supply connection; XI, XO = crystal connections. 2 Revision 020199 Printed 11/14/00 Integrated Circuit Systems * 525 Race Street * San Jose *CA*95126* (408) 295-9800tel * (408) 295-9818fax MDS 614-01 B PRELIMINARY INFORMATION I C R O C LOC K Electrical Specifications Parameter Supply voltage, VDD Inputs and Clock Outputs Ambient Operating Temperature Soldering Temperature Storage temperature Operating Voltage, VDD Operating Voltage, VDDIO Input High Voltage, VIH, X1 pin only Input Low Voltage, VIL, X1 pin only Input High Voltage, VIH Input Low Voltage, VIL Output High Voltage, VOH Output Low Voltage, VOL Output High Voltage, VOH, CMOS level Operating Supply Current, IDD Short Circuit Current Input Capacitance VIN, VCXO control voltage Input Frequency Input Crystal Accuracy Output Clock Accuracy (all but PAL square pixel) Output Clock Rise Time Output Clock Fall Time Output Clock Duty Cycle Maximum Absolute Jitter, short term Maximum Jitter, one sigma Notes: Conditions ICS614-01 16 pin Intel Graphics Clock Source Minimum Typical Maximum 7 VDD+0.5 70 260 150 5.50 VDD 2.5 2.5 1.5 0.8 Units V V C C C V V V V V V V V V mA mA pF V MHz ppm ppm ns ns % ps ps ABSOLUTE MAXIMUM RATINGS (note 1) Referenced to GND Referenced to GND Max of 10 seconds -65 4.50 3.13 3.5 2 IOH=-25mA IOL=25mA IOH=-8mA No Load Each output OE, select pins 2.4 0.4 VDD-0.4 35 100 5 0 27.000000 Given exact input 0.8 to 2.0V, no load 0.8 to 2.0V, no load At VDD/2 0 30 1 1.5 1.5 60 3 -0.5 0 DC CHARACTERISTICS (VDD = 5.0V unless noted) AC CHARACTERISTICS (VDD = 5.0V unless noted) 40 150 50 1. Stresses beyond those listed under Absolute Maximum Ratings could cause permanent damage to the device. Prolonged exposure to levels above the operating limits but below the Absolute Maximums may affect device reliability. 3 Revision 020199 Printed 11/14/00 Integrated Circuit Systems * 525 Race Street * San Jose *CA*95126* (408) 295-9800tel * (408) 295-9818fax MDS 614-01 B PRELIMINARY INFORMATION I C R O C LOC K External Components/Crystal Selection ICS614-01 16 pin Intel Graphics Clock Source The ICS614-01 requires a minimum number of external components for proper operation. Decoupling capacitors of 0.01 F should be connected between VDD and GND, one between pins 4 and 5, and one between pins 13 and 12, as close to the part as possible. A series termination resistor of 33 may be used for each clock output. The 27.000 MHz crystal must be connected as close to the chip as possible. The crystal should be a fundamental mode, parallel resonant, 30 ppm or better. Do not use third overtone. Crystal capacitors should be connected from pins X1 to ground and X2 to ground. In general, the value of these capacitors is given by the following equation, where CL is the crystal load capacitance: Crystal caps (pF) = (CL -6) x 2. So for a crystal with 16 pF load capacitance, two 20 pF caps can be used. For any given board layout, ICS can measure the board capacitance and recommend the exact capacitance value to use. Package Outline and Package Dimensions 16 pin SOIC narrow Symbol A b c D E H e h Q Inches Min Max 0.055 0.070 0.013 0.019 0.007 0.010 0.385 0.400 0.150 0.160 0.225 0.245 .050 BSC 0.016 0.004 0.01 Millimeters Min Max 1.397 1.778 0.330 0.483 0.191 0.254 9.779 10.160 3.810 4.064 5.715 6.223 1.27 BSC 0.406 0.102 0.254 E H D Q e Ordering Information Part/Order Number ICS614M-01 ICS614M-01T h x 45 A c b Marking ICS614M-01 ICS614M-01 Shipping packaging tubes tape and reel Package Temperature 16 pin narrow SOIC 0 to 70 C 16 pin narrow SOIC 0 to 70 C Rev. 12308, version A . First publication, Preliminary. Rev. 2019, version B. Added jitter, IDD specifications, showed VDDIO on pin 13, added i752 designation. While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems, Incorporated (ICS) assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use in life support devices or critical medical instruments. 4 Revision 020199 Printed 11/14/00 Integrated Circuit Systems * 525 Race Street * San Jose *CA*95126* (408) 295-9800tel * (408) 295-9818fax MDS 614-01 B |
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