ICS662-02 NTSC/PAL AUDIO CLOCK Description Features The ICS662-02 is a low cost, low jitter, high performance PLL clock synthesizer designed to replace oscillators and PLL circuits in set-top box and multimedia systems. Using ICS’ patented analog Phase Locked Loop (PLL) techniques, the device uses a NTSC/PAL reference clock input to produce a selectable audio clock. • • • • • • • ICS manufactures the largest variety of Set-Top Box and multimedia clock synthesizers for all applications. Consult ICS to eliminate VCXOs, crystals and oscillators from your board. Packaged in 8 pin SOIC Locks to NTSC and PAL colorburst frequencies (4x) Audio sampling rate outputs Low synthesis error in all clocks All frequencies are frequency locked Advanced, low power, sub-micron CMOS process Operating voltage of 3.3 V Block Diagram VDD OE/PD PLL Clock Synthesis and Control Circuitry S2:0 3 REF CLK Audio Clock GND 1 MDS 662-02 A In tegrat ed Cir c uit Syste m s l 525 R ace Str eet, S an Jose, CA 9 5126 Revision 100803 l tel (4 08) 295- 9800 l ww w. i c s t. c om ICS662-02 NTSC/PAL AUDIO CLOCK Pin Assignment CLOCK OUTPUT SELECT TABLE REF 1 8 S0 VDD 2 7 OE/PD GND 3 6 S1 S2 4 5 CLK 8 pin (150 mil) SOIC S2 S1 S0 Input Frequency Output Frequency Video Std. 0 0 0 14.31818 8.192 NTSC 0 0 1 14.31818 11.2896 NTSC 0 1 0 14.31818 12.288 NTSC 0 1 1 14.31818 24.576 NTSC 1 0 0 17.73447205* 8.192 PAL 1 0 1 17.73447205* 11.2896 PAL 1 1 0 17.73447205* 12.288 PAL 1 1 1 17.73447205* 24.576 PAL * -0.16 ppm compared to PAL specification Pin Descriptions Pin Pin Number Name Pin Type Pin Description 1 REF Input Reference clock input. 2 VDD Power Connect to +3.3 V. 3 GND Power Connect to ground. 4 S2 Input Output frequency selection Pin 2. Determines output frequency as per table above. 5 CLK Output 6 S1 Input Output frequency selection Pin 1. Determines output frequency as per table above. 7 OE/PD Input Output enable. Powers down PLL and tri-states output with weak pull-down when low. 8 S0 Input Output frequency selection Pin 0. Determines output frequency as per table above. 2 MDS 662-02 A Int egrated C ircui t S ystems Clock output per table above. l 525 Ra ce S tre et, Sa n Jose, C A 951 26 Revision 100803 l t el (408) 295-9 800 l ww w. ic s t .c o m ICS662-02 NTSC/PAL AUDIO CLOCK External Components Decoupling Capacitor As with any high performance mixed-signal IC, the ICS662-02 must be isolated from system power supply noise to perform optimally. A decoupling capacitor of 0.01µF must be connected between VDD and GND on pins 2 and 3. It must be connected close to the ICS662-02 to minimize lead inductance. No external power supply filtering is required for the ICS662-02. Series Termination Resistor A 33W terminating resistor can be used next to the clock outputs for trace lengths over one inch. Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the ICS662-02. These ratings, which are standard values for ICS commercially rated parts, are stress ratings only. 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 can affect product reliability. Electrical parameters are guaranteed only over the recommended operating temperature range. Item Rating Supply Voltage, VDD -0.5 V to 4 V All Inputs and Outputs -0.5 V to VDD+0.5 V Ambient Operating Temperature 0 to +70°C Storage Temperature -65 to +150°C Soldering Temperature 260°C Recommended Operation Conditions Parameter Min. Ambient Operating Temperature Power Supply Voltage (measured in respect to GND) Max. Units 0 +70 °C +3.0 +3.6 V 3 MDS 662-02 A Int egrated C ircui t S ystems Typ. l 525 Ra ce S tre et, Sa n Jose, C A 951 26 Revision 100803 l t el (408) 295-9 800 l ww w. ic s t .c o m ICS662-02 NTSC/PAL AUDIO CLOCK DC Electrical Characteristics VDD=3.3 V ±10% , Ambient temperature 0 to +70°C, unless stated otherwise Parameter Symbol Operating Voltage VDD Supply Current IDD Conditions Min. Typ. Max. Units 3.6 V 3.0 IDDPD No Load, OE/PD=1, first 4 modes 20 mA No Load, OE/PD=1, last 4 modes 25 mA No load, OE/PDTS=0 125 mA Input High Voltage VIH OE/PD pin only VDD - 0.5 Input Low Voltage VIL OE/PD pin only Input High Voltage VIH S2:S0, REF pins Input Low Voltage VIL S2:S0, REF pins Output High Voltage VOH IOH = -12 mA Output Low Voltage VOL IOL = 12 mA Output High Voltage, CMOS level VOH IOH = -4 mA Short Circuit Current IOS CLK outputs Input Capacitance V 0.5 2.0 V V 0.8 2.4 V V 0.4 VDD-0.4 V V +50 mA CIN 5 pF Nominal Output Impedance ZOUT 20 W Internal pull-up resistor RPU S2 pin 510 kW S1, S0 OE/PD 120 kW CLK pin 240 kW Internal pull-down resistor RPD AC Electrical Characteristics VDD = 3.3 V ±10%, Ambient Temperature 0 to +70° C, unless stated otherwise Parameter Input Crystal or Clock Frequency Symbol Conditions Min. FIN Frequency Synthesis Error Typ. 10 NTSC Clocks PAL Clocks Max. Units 20 MHz 0 ppm -0.16 ppm Output Clock Rise Time tOR 20% to 80%, Note 1 1.5 ns Output Clock Fall Time tOF 80% to 20%, Note 1 1.5 ns 4 MDS 662-02 A Int egrated C ircui t S ystems l 525 Ra ce S tre et, Sa n Jose, C A 951 26 Revision 100803 l t el (408) 295-9 800 l ww w. ic s t .c o m ICS662-02 NTSC/PAL AUDIO CLOCK Parameter Symbol Conditions Min. Typ. 45 Max. Units 55 % Output Clock Duty Cycle at VDD/2, Note 1 Maximum Absolute Jitter, short term Deviation from mean, Note 1 ±100 ps Maximum Absolute Jitter, long term Deviation from mean, Note 1, 10 ms delay ±400 ps Note 1: Measured with 15 pF load. Thermal Characteristics Parameter Symbol Conditions Min. Typ. Max. Units Thermal Resistance Junction to Ambient qJA Still air 150 °C/W qJA 1 m/s air flow 140 °C/W qJA 3 m/s air flow 120 °C/W Thermal Resistance Junction to Case qJC 40 °C/W 5 MDS 662-02 A Int egrated C ircui t S ystems l 525 Ra ce S tre et, Sa n Jose, C A 951 26 Revision 100803 l t el (408) 295-9 800 l ww w. ic s t .c o m ICS662-02 NTSC/PAL AUDIO CLOCK Package Outline and Package Dimensions (8 pin SOIC, 150 Mil. Narrow Body) Package dimensions are kept current with JEDEC Publication No. 95 Millimeters Inches 8 Symbol E A A1 B C D E e H h L a H INDEX AREA 1 2 D Min Max 1.35 1.75 0.10 0.25 0.33 0.51 0.19 0.25 4.80 5.00 3.80 4.00 1.27 BASIC 5.80 6.20 0.25 0.50 0.40 1.27 0° 8° A Min Max .0532 .0688 .0040 .0098 .013 .020 .0075 .0098 .1890 .1968 .1497 .1574 0.050 BASIC .2284 .2440 .010 .020 .016 .050 0° 8° h x 45 A1 C -Ce SEATING PLANE B α L .10 (.004) C Ordering Information Part / Order Number (Note 1) Marking Shipping packaging Package Temperature ICS662M-02 ICS662M-02TR 662M-02 662M-02 Tubes Tape and Reel 8 pin SOIC 8 pin SOIC 0 to +70° C 0 to +70° C While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems (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. 6 MDS 662-02 A Int egrated C ircui t S ystems l 525 Ra ce S tre et, Sa n Jose, C A 951 26 Revision 100803 l t el (408) 295-9 800 l ww w. ic s t .c o m