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ICS662-03
HDTV Audio/Video Clock Source
Description
The ICS662-03 provides synchronous clock generation for audio sampling clock rates derived from an HDTV stream. The device uses the latest PLL technology to provide superior phase noise and long term jitter performance. The device also supports a 27 MHz output clock for video MPEG applications from an HDTV reference clock. Please contact ICS if you have a requirement for an input and output frequency not included here.
Features
* * * * * * *
Packaged in 8-pin SOIC Available in Pb (lead) free package HDTV clock input Low phase noise Exact (0 ppm) multiplication ratios Support for 256 and 384 times sampling rate Supports 27 MHz output for video (MPEG)
Block Diagram
VDD
SEL3:0
Control Circuitry
PLL Clock Synthesis
CLK
REF_IN
GND
MDS 662-03 D Integrated Circuit Systems, Inc.
1
525 Race Street, San Jose, CA 95126
Revision 033005 tel (408) 297-1201
www.icst.com
ICS662-03 HDTV Audio/Video Clock Source
Pin Assignment
Output Clock Selection Table
S3
0
S2
0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
S1
0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
S0
0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
Input Frequency (MHz)
74.175824 74.175824 74.175824 74.175824 74.175824 74.175824 74.175824 74.175824 74.25 74.25 74.25 74.25 74.25 74.25 74.25 74.25
Output Frequency (MHz)
8.192 11.2896 12.288 24.576 16.9344 18.432 36.864 27 8.192 11.2896 12.288 24.576 16.9344 18.432 36.864 27
REF_IN VDD GND S2
1 2 3 4
8 7 6 5
S0 S3 S1 CLK
0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
8 pin (150 mil) SOIC
Pin Descriptions
Pin Number
1 2 3 4 5 6 7 8
Pin Name
REF_IN VDD GND S2 CLK S1 S3 S0
Pin Type
Input Power Power Input Output Input Input Input Connect to +3.3 V. Connect to ground.
Pin Description
Connect this pin to a HDTV clock input.
Output frequency selection. Determines output frequency per table above. On chip pull-up. Clock output. Output frequency selection. Determines output frequency per table above. On chip pull-up. Output frequency selection. Determines output frequency per table above. On chip pull-up. Output frequency selection. Determines output frequency per table above. On chip pull-up.
MDS 662-03 D Integrated Circuit Systems, Inc.
2
525 Race Street, San Jose, CA 95126
Revision 033005 tel (408) 297-1201
www.icst.com
ICS662-03 HDTV Audio/Video Clock Source
Application Information
Series Termination Resistor
Clock output traces should use series termination. To series terminate a 50 trace (a commonly used trace impedance), place a 33 resistor in series with the clock line, as close to the clock output pin as possible. The nominal impedance of the clock output is 20. 1) Each 0.01F decoupling capacitor should be mounted on the component side of the board as close to the VDD pin as possible. No vias should be used between decoupling capacitor and VDD pin. The PCB trace to VDD pin should be kept as short as possible, as should the PCB trace to the ground via. Distance of the ferrite bead and bulk decoupling from the device is less critical. 2) To minimize EMI and obtain the best signal integrity, the 33 series termination resistor should be placed close to the clock output. 3) An optimum layout is one with all components on the same side of the board, minimizing vias through other signal layers (the ferrite bead and bulk decoupling capacitor can be mounted on the back). Other signal traces should be routed away from the ICS662-03. This includes signal traces just underneath the device, or on layers adjacent to the ground plane layer used by the device.
Decoupling Capacitors
As with any high performance mixed-signal IC, the ICS662-03 must be isolated from system power supply noise to perform optimally. Decoupling capacitors of 0.01F must be connected between VDD (pin 2) and the PCB ground plane (pin 3).
PCB Layout Recommendations
For optimum device performance and lowest output phase noise, the following guidelines should be observed.
MDS 662-03 D Integrated Circuit Systems, Inc.
3
525 Race Street, San Jose, CA 95126
Revision 033005 tel (408) 297-1201
www.icst.com
ICS662-03 HDTV Audio/Video Clock Source
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the ICS662-03. 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
Supply Voltage, VDD All Inputs and Outputs Ambient Operating Temperature Storage Temperature Junction Temperature Soldering Temperature 5.5 V
Rating
-0.5 V to VDD+0.5 V 0 to +70C -65 to +150C 125C 260C
Recommended Operation Conditions
Parameter
Ambient Operating Temperature Power Supply Voltage (measured in respect to GND)
Min.
0 +3.0
Typ.
Max.
+70 +3.6
Units
C V
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V 10%, Ambient Temperature 0 to +70C
Parameter
Operating Voltage Supply Current Input High Voltage Input Low Voltage Output High Voltage Output High Voltage Output Low Voltage Short Circuit Current Nominal Output Impedance Input Capacitance Internal pull-up resistor
Symbol
VDD IDD VIH VIL VOH VOH VOL IOS ZOUT CIN RPU
Conditions
No Load, first 8 modes No Load, last 8 modes
Min.
3.0
Typ.
3.3 25 16
Max.
3.6
Units
V mA mA V
2 0.8 IOH = -4 mA IOH = -12 mA IOL = 12 mA Each output input pins S2 pin S3, S1, S0 pins 50 20 7 510 120 VDD-0.4 2.4 0.4
V V V V mA pF k k
MDS 662-03 D Integrated Circuit Systems, Inc.
4
525 Race Street, San Jose, CA 95126
Revision 033005 tel (408) 297-1201
www.icst.com
ICS662-03 HDTV Audio/Video Clock Source
AC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V 10%, Ambient Temperature 0 to +70C
Parameter
Output Clock Rise Time Output Clock Fall Time Output Duty Cycle Jitter, short term
Symbol
tOR tOF tOD tP-P
Conditions
20% to 80%, 15 pF load 80% to 20%, 15 pF load at VDD/2, 15 pF load 15 pF load 27M output, 15 pF load, first 8 modes, 1000 cycles delay 27M output, 15 pF load, last 8 modes, 1000 cycles delay
Min.
Typ.
1.2 1.0
Max.
1.5 1.5 55
Units
ns ns % ps ps
45 +75 900
Jitter, long term
600 0
ps ppm
Frequency Synthesis Error
Thermal Characteristics
Parameter
Thermal Resistance Junction to Ambient
Symbol
JA JA JA JC
Conditions
Still air 1 m/s air flow 3 m/s air flow
Min.
Typ.
150 140 120 40
Max. Units
C/W C/W C/W C/W
Thermal Resistance Junction to Case
Marking Diagram (ICS662M-03)
8 5
Marking Diagram (ICS662M-03LF)
8 5
662M-03 ###### YYWW$$
1 4
662M03LF ###### YYWW
1 4
Notes: 1. ###### is the lot number. 2. YYWW is the last two digits of the year and week that the part was assembled. 3. "LF" denotes Pb (lead) free package. 4. Bottom marking: (origin). Origin = country of origin if not USA.
MDS 662-03 D Integrated Circuit Systems, Inc.
5
525 Race Street, San Jose, CA 95126
Revision 033005 tel (408) 297-1201
www.icst.com
ICS662-03 HDTV Audio/Video Clock Source
Package Outline and Package Dimensions (8-pin SOIC, 150 Mil. Body)
Package dimensions are kept current with JEDEC Publication No. 95
Millimeters Symbol
8
Inches Min Max
Min
Max
A A1 B C
E H
1.35 0.10 0.33 0.19 4.80 3.80 5.80 0.25 0.40 0
1.75 0.25 0.51 0.25 5.00 4.00 6.20 0.50 1.27 8
.0532 .0040 .013 .0075 .1890 .1497 .2284 .010 .016 0
.0688 .0098 .020 .0098 .1968 .1574 .2440 .020 .050 8
INDEX AREA
D E e H h L
1.27 BASIC
0.050 BASIC
12 D
A A1
h x 45 C
-Ce
B SEATING PLANE L
.10 (.004)
C
Ordering Information
Part / Order Number
ICS662M-03 ICS662M-03T ICS662M-03LF ICS662M-03LFT see page 5
Marking
Shipping Packaging
Tubes Tape and Reel Tubes Tape and Reel
Package
8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC
Temperature
0 to +70C 0 to +70C 0 to +70C 0 to +70C
Parts that are ordered with a "LF" suffix to the part number are the Pb-Free configuration and are RoHS compliant. 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.
MDS 662-03 D Integrated Circuit Systems, Inc.
6
525 Race Street, San Jose, CA 95126
Revision 033005 tel (408) 297-1201
www.icst.com

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