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ICS662-02
NTSC/PAL AUDIO CLOCK
Description
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.
Features
* * * * * * *
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 S2:0 3 REF CLK PLL Clock Synthesis and Control Circuitry
Audio Clock
GND
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Pin Assignment
REF VDD GND S2 1 2 3 4 8 7 6 5 S0 OE/PD S1 CLK
CLOCK OUTPUT SELECT TABLE
S2 0 0 0 0 1 1 1 1 S1 0 0 1 1 0 0 1 1 S0 0 1 0 1 0 1 0 1 Input Frequency 14.31818 14.31818 14.31818 14.31818 17.73447205* 17.73447205* 17.73447205* 17.73447205* Output Frequency 8.192 11.2896 12.288 24.576 8.192 11.2896 12.288 24.576 Video Std. NTSC NTSC NTSC NTSC PAL PAL PAL PAL
8 pin (150 mil) SOIC
* -0.16 ppm compared to PAL specification
Pin Descriptions
Pin Pin Number Name
1 2 3 4 5 6 7 8 REF VDD GND S2 CLK S1 OE/PD S0
Pin Type
Input Power Power Input Output Input Input Input Reference clock input. Connect to +3.3 V. Connect to ground.
Pin Description
Output frequency selection Pin 2. Determines output frequency as per table above. Clock output per table above. Output frequency selection Pin 1. Determines output frequency as per table above. Output enable. Powers down PLL and tri-states output with weak pull-down when low. Output frequency selection Pin 0. Determines output frequency as per table above.
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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 0.01F 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
Supply Voltage, VDD All Inputs and Outputs Ambient Operating Temperature Storage Temperature Soldering Temperature -0.5 V to 4 V
Rating
-0.5 V to VDD+0.5 V 0 to +70C -65 to +150C 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
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DC Electrical Characteristics
VDD=3.3 V 10% , Ambient temperature 0 to +70C, unless stated otherwise
Parameter
Operating Voltage Supply Current
Symbol
VDD IDD
Conditions
No Load, OE/PD=1, first 4 modes No Load, OE/PD=1, last 4 modes
Min.
3.0
Typ.
20
Max.
3.6
Units
V mA
25
mA
IDDPD Input High Voltage Input Low Voltage Input High Voltage Input Low Voltage Output High Voltage Output Low Voltage Output High Voltage, CMOS level Short Circuit Current Input Capacitance Nominal Output Impedance Internal pull-up resistor VIH VIL VIH VIL VOH VOL VOH IOS CIN ZOUT RPU RPD
No load, OE/PDTS=0 OE/PD pin only VDD - 0.5 OE/PD pin only S2:S0, REF pins S2:S0, REF pins IOH = -12 mA IOL = 12 mA IOH = -4 mA CLK outputs VDD-0.4 2.4 2.0
125
mA
V 0.5 V V 0.8 V V 0.4 V V mA pF
+50 5 20
W
kW kW kW
S2 pin S1, S0 OE/PD
510 120 240
Internal pull-down resistor
CLK pin
AC Electrical Characteristics
VDD = 3.3 V 10%, Ambient Temperature 0 to +70 C, unless stated otherwise
Parameter
Input Crystal or Clock Frequency Frequency Synthesis Error Output Clock Rise Time Output Clock Fall Time
Symbol
FIN
Conditions
NTSC Clocks PAL Clocks
Min.
10 -0.16
Typ.
Max.
20 0 1.5 1.5
Units
MHz ppm ppm ns ns
tOR tOF
20% to 80%, Note 1 80% to 20%, Note 1
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Parameter
Output Clock Duty Cycle Maximum Absolute Jitter, short term Maximum Absolute Jitter, long term Note 1: Measured with 15 pF load.
Symbol
Conditions
at VDD/2, Note 1
Deviation from mean, Note 1 Deviation from mean, Note 1, 10 ms delay
Min.
45
Typ.
100 400
Max.
55
Units
% ps ps
Thermal Characteristics
Parameter
Thermal Resistance Junction to Ambient
Symbol
qJA qJA qJA qJC
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
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Package Outline and Package Dimensions (8 pin SOIC, 150 Mil. Narrow Body)
Package dimensions are kept current with JEDEC Publication No. 95
Millimeters
8
Inches Min Max
Symbol
Min
Max
E INDEX AREA
H
12 D
A A1 B C D E e H h L a
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
.0532 .0688 .0040 .0098 .013 .020 .0075 .0098 .1890 .1968 .1497 .1574 0.050 BASIC .2284 .2440 .010 .020 .016 .050 0 8
A A1
h x 45 C
-Ce
B SEATING PLANE
.10 (.004)
L
C
Ordering Information
Part / Order Number (Note 1)
ICS662M-02 ICS662M-02TR
Marking
662M-02 662M-02
Shipping packaging
Tubes Tape and Reel
Package
8 pin SOIC 8 pin SOIC
Temperature
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.
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