ICS667-01 [ICSI]
HDTV CLOCK SYNTHESIZER; HDTV时钟合成器
| 型号： | ICS667-01 |
| 厂家： | 
INTEGRATED CIRCUIT SOLUTION INC |
| 描述： | HDTV CLOCK SYNTHESIZER |
| 文件： | 总5页 (文件大小：127K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICS667-01
HDTV CLOCK SYNTHESIZER
Description
Features
The ICS667-01 is a low-cost, low jitter,
• Packaged in 8-pin SOIC
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.
• Available in Pb (lead) free package
• Input frequency of 27 MHz
• Zero ppm synthesis error in output clock
• 3.3 V 5ꢀ operating supply
• Ideal for HDTV applications and oscillator
manufacturers
ICS manufactures the largest variety multimedia clock
synthesizers for all applications. Consult ICS to
eliminate crystals and oscillators from your board.
• Advanced, low power, sub-micron CMOS process
Block Diagram
VDD
OE
Clock
Synthesis
and Control
Circuitry
CLK
74.17582418 MHz
ICLK/X1
X2
27 MHz
crystal or
clock input
Clock
Buffer
27.0000 MHz
2
GND
Optional tuning crystal capacitors
MDS 667-01 C
1
Revision 031605
Integrated Circuit Systems z 525 Race Street San Jose, CA 95126 z tel (408) 297-1201 z www.icst.com
ICS667-01
HDTV CLOCK SYNTHESIZER
Pin Assignment
ICLK/X1
VDD
8
7
6
5
1
2
3
4
X2
27M
OE
GND
CLK
GND
Pin Descriptions
Pin
Pin
Pin
Type
Pin Description
Number Name
1
2
3
4
5
6
7
8
ICLK/X1
VDD
GND
CLK
GND
OE
XI
Crystal connection. Connect to a 27 MHz fundamental crystal or clock.
Power Connect to +3.3 V.
Power Connect to ground.
Output 74.17582418 MHz.
Power Connect to ground.
Input
Output enable. Tri-states CLK output when low. Internal pull-up to VDD.
27M
X2
Output 27 MHz buffered clock or crystal oscillator output.
XO
Crystal connection. Connect to a 27 MHz crystal, or leave unconnected
for clock input.
External Components
crystal should be used. The device crystal connections
should include pads for small capacitors from X1 to
Decoupling Capacitor
As with any high performance mixed-signal IC, the
ICS667-01 must be isolated from system power supply
noise to perform optimally.
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.
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 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.
The value (in pF) of these crystal caps should equal
Series Termination Resistor
A 33Ω terminating resistor can be used next to the
clock outputs for trace lengths over one inch.
(C -16 pF)*2. In this equation, C = crystal load
L
L
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.
Crystal Load Capacitors
The total on-chip capacitance is approximately 18 pF. A
parallel resonant, fundamental mode, AT cut 27 MHz
MDS 667-01 C
2
Revision 031605
Integrated Circuit Systems z 525 Race Street, San Jose, CA 95126 z tel (408) 297-1201 z www.icst.com
ICS667-01
HDTV CLOCK SYNTHESIZER
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.
Item
Rating
Supply Voltage, VDD
All Inputs and Outputs
7 V
-0.5 V to VDD+0.5 V
0 to +70°C
Ambient Operating Temperature
Storage Temperature
-65 to +150°C
260°C
Soldering Temperature
Recommended Operation Conditions
Parameter
Min.
Typ.
Max.
+70
Units
°C
Ambient Operating Temperature
Power Supply Voltage (measured in respect to GND)
0
+3.150
3.3
+3.465
V
DC Electrical Characteristics
VDD=3.3 V+ 5% unless otherwise noted, Ambient temperature 0 to +70°C
Parameter
Symbol Conditions
Min.
3.15
2.0
Typ.
Max.
Units
Operating Voltage
VDD
3.3
3.465
V
V
V
V
V
Input High Voltage
Input Low Voltage
V
ICLK, OE
ICLK, OE
IH
V
0.8
IL
Output High Voltage
Output Low Voltage
Operating Supply Current
Short Circuit Current
Input Capacitance
V
I
I
= -4 mA
= 4 mA
VDD-0.4
OH
OH
OL
V
0.4
OL
IDD
No load
30
+50
7
mA
mA
pF
Each output
C
IN
MDS 667-01 C
3
Revision 031605
Integrated Circuit Systems z 525 Race Street, San Jose, CA 95126 z tel (408) 297-1201 z www.icst.com
ICS667-01
HDTV CLOCK SYNTHESIZER
AC Electrical Characteristics
VDD =3.3V+ 5%, C =15pF unless otherwise noted, Ambient Temperature 0 to +70°C
L
Parameter
Symbol
Conditions
Min. Typ. Max. Units
Input Frequency
F
27
MHz
ppm
ns
IN
Frequency Error, Output Clock
Output Clock Rise Time
0
t
0.8 to 2.0 V
1.5
1.5
60
OR
Output Clock Fall Time
t
2.0 to 8.0 V
ns
OF
Output Clock Duty Cycle
at 1.4 V
40
50
ꢀ
Maximum Absolute Jitter, short term
t
Deviation from mean
Deviation from mean
200
500
ps
ja
Maximum Absolute Jitter, Long term
term over 1us
t
ps
jl
Output Enable Time
OE going from Low to
High
20
ns
Internal Pull-up Resistor
R
OE pin
750
kΩ
PUP
Thermal Characteristics
Parameter
Symbol
Conditions
Still air
Min.
Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
θ
θ
θ
150
140
120
40
°C/W
°C/W
°C/W
°C/W
JA
JA
JA
JC
1 m/s air flow
3 m/s air flow
Thermal Resistance Junction to Case
Marking Diagram
Marking Diagram (Pb free)
8
5
8
5
667M01LF
######
YYWW$$
667M-01
######
YYWW$$
1
4
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. Bottom marking: (origin)
Origin = country of origin if other than USA.
4. “LF” denotes Pb (lead) free package.
MDS 667-01 C
4
Revision 031605
Integrated Circuit Systems z 525 Race Street, San Jose, CA 95126 z tel (408) 297-1201 z www.icst.com
ICS667-01
HDTV CLOCK SYNTHESIZER
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
Min
Max
1.75
0.25
0.51
0.25
5.00
4.00
Min
Max
A
A1
B
C
D
E
e
1.35
0.10
0.33
0.19
4.80
3.80
.0532
.0040
.013
.0075
.1890
.1497
.0688
.0098
.020
.0098
.1968
.1574
E
H
INDEX
AREA
1.27 BASIC
0.050 BASIC
H
h
L
5.80
6.20
0.50
1.27
8°
.2284
.010
.016
0°
.2440
.020
.050
8°
1
2
0.25
0.40
0°
D
α
A
h x 45
A1
C
- C -
e
SEATING
PLANE
B
L
.10 (.004)
C
Ordering Information
Part / Order Number
ICS667M-01
Marking
see page 5
Shipping Packaging
Tubes
Package
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
Temperature
0 to +70° C
0 to +70° C
0 to +70° C
0 to +70° C
ICS667M-01T
ICS667M-01LF
ICS667M-01LFT
Tape and Reel
Tubes
see page 5
Tape and Reel
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 667-01 C
5
Revision 031605
Integrated Circuit Systems z 525 Race Street, San Jose, CA 95126 z tel (408) 297-1201 z www.icst.com
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