ICST ICS662M-02 Ntsc/pal audio clock Datasheet

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
Similar pages