ICS667-01
MDS 667-01 C
1
Revision 031605
I n t e gr a t e d C i r c u i t S y s t e m s
5 2 5 R a c e S t r e e t S a n J o s e, C A 9 5 1 2 6
t e l ( 4 0 8 ) 2 9 7 - 1 2 0 1
w w w. i c s t . c o m
HDTV C
LOCK
S
YNTHESIZER
Description
The ICS667-01 is a low-cost, low jitter,
high-performance PLL clock synthesizer designed to
produce the 74.176 MHz clock necessary for HDTV
systems. Using ICS' patented analog Phase-Locked
Loop (PLL) techniques, the device accepts a 27 MHz
crystal or clock input. The zero ppm synthesis error
exactly locks the display to the digital stream.
ICS manufactures the largest variety multimedia clock
synthesizers for all applications. Consult ICS to
eliminate crystals and oscillators from your board.
Features
Packaged in 8-pin SOIC
Available in Pb (lead) free package
Input frequency of 27 MHz
Zero ppm synthesis error in output clock
3.3 V 5% operating supply
Ideal for HDTV applications and oscillator
manufacturers
Advanced, low power, sub-micron CMOS process
Block Diagram
CLK
74.17582418 MHz
Clock
Synthesis
and Control
Circuitry
27 MHz
crystal or
clock input
VDD
Clock
Buffer
OE
ICLK/X1
X2
27.0000 MHz
GND
2
Optional tuning crystal capacitors
HDTV C
LOCK
S
YNTHESIZER
MDS 667-01 C
2
Revision 031605
I n t e gr a t e d C i r c u i t S y s t e m s
5 2 5 R a c e S t r e e t , S a n J o s e, C A 9 5 1 2 6
t e l ( 4 0 8 ) 2 9 7 - 1 2 0 1
w w w. i c s t . c o m
ICS667-01
Pin Assignment
Pin Descriptions
External Components
Decoupling Capacitor
As with any high performance mixed-signal IC, the
ICS667-01 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 ICS667-01 to minimize lead
inductance. Pin 5 can be connected to pin 3. No
external power supply filtering is required for the
ICS667-01.
Series Termination Resistor
A 33
terminating resistor can be used next to the
clock outputs for trace lengths over one inch.
Crystal Load Capacitors
The total on-chip capacitance is approximately 18 pF. A
parallel resonant, fundamental mode, AT cut 27 MHz
crystal should be used. The device crystal connections
should include pads for small capacitors from X1 to
ground and from X2 to ground. These capacitors are
used to adjust the stray capacitance of the board to
match the nominally required crystal load capacitance.
Because load capacitance can only be increased in this
trimming process, it is important to keep stray
capacitance to a minimum by using very short PCB
traces (and no vias) between the crystal and device.
Crystal capacitors, if needed, must be connected from
each of the pins X1 and X2 to ground.
The value (in pF) of these crystal caps should equal
(C
L
-16 pF)*2. In this equation, C
L
= crystal load
capacitance in pF. Example: For a crystal with an 18 pF
load capacitance, each crystal capacitor would be 4 pF
[(18-16) x 2] = 4.
ICLK/X1
VDD
GND
27M
CLK
OE
GND
X2
1
2
3
4
8
7
6
5
Pin
Number
Pin
Name
Pin
Type
Pin Description
1
ICLK/X1
XI
Crystal connection. Connect to a 27 MHz fundamental crystal or clock.
2
VDD
Power
Connect to +3.3 V.
3
GND
Power
Connect to ground.
4
CLK
Output
74.17582418 MHz.
5
GND
Power
Connect to ground.
6
OE
Input
Output enable. Tri-states CLK output when low. Internal pull-up to VDD.
7
27M
Output
27 MHz buffered clock or crystal oscillator output.
8
X2
XO
Crystal connection. Connect to a 27 MHz crystal, or leave unconnected
for clock input.
HDTV C
LOCK
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YNTHESIZER
MDS 667-01 C
3
Revision 031605
I n t e gr a t e d C i r c u i t S y s t e m s
5 2 5 R a c e S t r e e t , S a n J o s e, C A 9 5 1 2 6
t e l ( 4 0 8 ) 2 9 7 - 1 2 0 1
w w w. i c s t . c o m
ICS667-01
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the ICS667-01. 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.
Recommended Operation Conditions
DC Electrical Characteristics
VDD=3.3 V+ 5% unless otherwise noted, Ambient temperature 0 to +70
C
Item
Rating
Supply Voltage, VDD
7 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
Parameter
Min.
Typ.
Max.
Units
Ambient Operating Temperature
0
+70
C
Power Supply Voltage (measured in respect to GND)
+3.150
3.3
+3.465
V
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Operating Voltage
VDD
3.15
3.3
3.465
V
Input High Voltage
V
IH
ICLK, OE
2.0
V
Input Low Voltage
V
IL
ICLK, OE
0.8
V
Output High Voltage
V
OH
I
OH
= -4 mA
VDD-0.4
V
Output Low Voltage
V
OL
I
OL
= 4 mA
0.4
V
Operating Supply Current
IDD
No load
30
mA
Short Circuit Current
Each output
+50
mA
Input Capacitance
C
IN
7
pF
HDTV C
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YNTHESIZER
MDS 667-01 C
4
Revision 031605
I n t e gr a t e d C i r c u i t S y s t e m s
5 2 5 R a c e S t r e e t , S a n J o s e, C A 9 5 1 2 6
t e l ( 4 0 8 ) 2 9 7 - 1 2 0 1
w w w. i c s t . c o m
ICS667-01
AC Electrical Characteristics
VDD =3.3V+ 5%, C
L
=15pF unless otherwise noted, Ambient Temperature 0 to +70
C
Thermal Characteristics
Marking Diagram
Marking Diagram (Pb free)
Notes:
1. ###### is the lot number.
2. YYWW is the last two digits of the year and week that the part was assembled.
3. Bottom marking: (origin)
Origin = country of origin if other than USA.
4. "LF" denotes Pb (lead) free package.
Parameter
Symbol
Conditions
Min.
Typ.
Max. Units
Input Frequency
F
IN
27
MHz
Frequency Error, Output Clock
0
ppm
Output Clock Rise Time
t
OR
0.8 to 2.0 V
1.5
ns
Output Clock Fall Time
t
OF
2.0 to 8.0 V
1.5
ns
Output Clock Duty Cycle
at 1.4 V
40
50
60
%
Maximum Absolute Jitter, short term
t
ja
Deviation from mean
200
ps
Maximum Absolute Jitter, Long term
term over 1us
t
jl
Deviation from mean
500
ps
Output Enable Time
OE going from Low to
High
20
ns
Internal Pull-up Resistor
R
PUP
OE pin
750
k
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Thermal Resistance Junction to
Ambient
JA
Still air
150
C/W
JA
1 m/s air flow
140
C/W
JA
3 m/s air flow
120
C/W
Thermal Resistance Junction to Case
JC
40
C/W
667M-01
######
YYWW$$
1
4
5
8
667M01LF
######
YYWW$$
1
4
5
8
HDTV C
LOCK
S
YNTHESIZER
MDS 667-01 C
5
Revision 031605
I n t e gr a t e d C i r c u i t S y s t e m s
5 2 5 R a c e S t r e e t , S a n J o s e, C A 9 5 1 2 6
t e l ( 4 0 8 ) 2 9 7 - 1 2 0 1
w w w. i c s t . c o m
ICS667-01
Package Outline and Package Dimensions
(8-pin SOIC, 150 Mil. Narrow Body)
Package dimensions are kept current with JEDEC Publication No. 95
Ordering Information
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.
Part / Order Number
Marking
Shipping Packaging
Package
Temperature
ICS667M-01
see page 5
Tubes
8-pin SOIC
0 to +70
C
ICS667M-01T
Tape and Reel
8-pin SOIC
0 to +70
C
ICS667M-01LF
see page 5
Tubes
8-pin SOIC
0 to +70
C
ICS667M-01LFT
Tape and Reel
8-pin SOIC
0 to +70
C
INDEX
AREA
1 2
8
D
E
SEATING
PLANE
A1
A
e
- C -
B
.10 (.004)
C
C
L
H
h x 45
Millimeters
Inches
Symbol
Min
Max
Min
Max
A
1.35
1.75
.0532
.0688
A1
0.10
0.25
.0040
.0098
B
0.33
0.51
.013
.020
C
0.19
0.25
.0075
.0098
D
4.80
5.00
.1890
.1968
E
3.80
4.00
.1497
.1574
e
1.27 BASIC
0.050 BASIC
H
5.80
6.20
.2284
.2440
h
0.25
0.50
.010
.020
L
0.40
1.27
.016
.050
0
8
0
8
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