ICS650R-12LF [IDT]
Video Clock Generator, 108MHz, PDSO20, SSOP-20;
| 型号： | ICS650R-12LF |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Video Clock Generator, 108MHz, PDSO20, SSOP-20 时钟 光电二极管 外围集成电路 晶体 |
| 文件： | 总7页 (文件大小：132K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DATASHEET
MPEG CLOCK SYNTHESIZER
ICS650-12
Description
Features
The ICS650-12 is a low cost, low-jitter, high-performance
clock synthesizer designed to produce fixed clock outputs of
13.5 MHz and 27.0 MHz, and four selectable clock outputs:
two Processor Clocks (PCLK1) and PCLK2), an Audio
Clock, and a Communications Clock (CCLK). Using analog
Phase-Locked Loop (PLL) techniques, the device uses a
27.0 MHz clock or fundamental crystal to produce clocks
ideal for Digital Video/MPEG-based applications.
• Packaged in 20-pin tiny SSOP (QSOP)
• RoHS 5 (green) or RoHS 6 (green and lead free)
compliant package
• Input frequency of 27.0 MHz
• Zero ppm synthesis error in output clocks
• Provides fixed 13.5 MHz and 27.0 MHz. Also provides
two selectable processor clocks, one audio clock, and
one communications clock.
• Ideal for digital video MPEG-based applications
• 3.3 V or 5.0 V operating voltage
• Entire chip powers down (when CS1=CS0=0)
Block Diagram
PS2:0
PCLK1
PCLK2
Clock
AS2:0
CS1:0
Synthesis
ACLK
and Control
Circuitry
CCLK
13.5 MHz
/2
Input
Buffer/
27.0 MHz crystal
Crystal
27.0 MHz
or clock
Oscillator
IDT™ / ICS™ MPEG CLOCK SYNTHESIZER
1
ICS650-12
REV E 051310
ICS650-12
MPEG CLOCK SYNTHESIZER
CLOCK SYNTHESIZER
ACLK Select Table (in MHz)
Pin Assignment
AS2
AS1 AS0 ACLK
PS2
X2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
PS1
PS0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
12.288
11.2896
8.192
X1
CCLK
PCLK2
VDD
AS1
VDD
CS1
24.576
8.192
GND
ACLK
PCLK1
CS0
GND
13.5M
27M
16.9344
18.432
11.2896
AS2
AS0
20-pin SSOP (QSOP)
CCLK Select Table (in MHz)
CS1 CS0 CCLK
PCLK1 and PCLK2 Select Table (in MHz)
PS2 PS1 PS0 PCLK1 PCLK2
0
0
1
1
0
1
0
1
All off*
20.00
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
108.00
55.00
66.67
80.00
54.00
81.00
50.00
60.00
54.00
27.5
66.6666
24.576
33.33
40.00
27.00
40.5
*Note: Entire chip powers-down (outputs stop low) when
CS1=CS0=0.
25.00
30.00
IDT™ / ICS™ MPEG CLOCK SYNTHESIZER
2
ICS650-12
REV E 051310
ICS650-12
MPEG CLOCK SYNTHESIZER
CLOCK SYNTHESIZER
Pin Descriptions
Pin
Pin
Pin
Pin Description
Number Name Type
1
2
PS2
X2
Input Processor Clock Select pin 2. See table on page 2.
XO
XI
Crystal connection. Connect to a 27.0 MHz crystal or leave unconnected for a clock input.
Crystal connection. Connect to a 27.0 MHz fundamental mode crystal or clock input.
3
X1
4, 16
5
VDD
CS1
GND
Power Connect to +3.3 V or +5 V.
Input Communications Clock Select Pin 1. See table on page 2.
Power Connect to ground.
6, 14
7
ACLK Output Audio Clock Output. See table on page 2.
8
PCLK1 Output Processor Clock Output 1. See table on page 2.
9
CS0
AS2
AS0
27M
Input Communications Clock Select 0. See table on page 2.
Input Audio Clock Select Pin 2. See table on page 2.
Input Audio Clock Select Pin 0. See table on page 2.
Output 27 MHz buffered clock output.
10
11
12
13
15
17
18
19
20
13.5M Output 13.5 MHz clock output.
AS1 Input Audio Clock Select Pin 1. See table on page 2.
PCLK2 Output Processor Clock Output 2. See table on page 2.
CCLK Output Communications Clock Output. See table on page 2.
PS0
PS1
Input Processor Clock Select Pin 0. See table on page 2.
Input Processor Clock Select Pin 1. See table on page 2.
Key: Input = input with internal pull-up; XI and XO = crystal
connections; Power = power supply connection; Output =
output
IDT™ / ICS™ MPEG CLOCK SYNTHESIZER
3
ICS650-12
REV E 051310
ICS650-12
MPEG CLOCK SYNTHESIZER
CLOCK SYNTHESIZER
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the ICS650-12. These ratings, which are
standard values for IDT 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
Conditions
Referenced to GND
Referenced to GND
Rating
Supply Voltage, VDD
7 V
All Inputs and Outputs
Ambient Operating Temperature
Storage Temperature
-0.5 V to VDD+0.5 V
0 to +70°C
-65 to +150°C
260°C
Soldering Temperature
Max. of 10 seconds
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V or 5 V, Ambient Temperature 0 to +70°C
Parameter
Operating Voltage
Symbol
VDD
VIH
Conditions
Min.
3.0
2
Typ.
Max.
Units
5.5
V
V
V
V
V
V
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
Output High Voltage
VDD/2
VDD/2
VIL
0.8
0.8
VOH
VOL
VDD = 3.3 V, IOH = -8 mA
VDD = 3.3 V, IOL = 8 mA
2.4
VOH,VDD = 3.3 IOH = -8 mA
or 5 V
VDD-0.4
Operating Supply Current
Operating Supply Current
Short Circuit Current
Input Capacitance
I
DD@5 V
No Load
No Load
39
22
50
7
mA
mA
mA
pF
IDD@5 V
IOS, VDD = 3.3 V Each output
Except X1
IDT™ / ICS™ MPEG CLOCK SYNTHESIZER
4
ICS650-12
REV E 051310
ICS650-12
MPEG CLOCK SYNTHESIZER
CLOCK SYNTHESIZER
AC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V or 5 V, Ambient Temperature 0 to +70°C
Parameter
Input Crystal or Clock Frequency
Output Clocks Accuracy (synthesis error)
Output Clock Rise Time
Symbol
Conditions
Min. Typ. Max. Units
27
0
MHz
ppm
ns
All clocks
1
t
0.8 to 2.0 V
2.0 to 0.8 V
At VDD/2
1.5
1.5
60
OR
Output Clock Fall Time
t
ns
OF
Output Clock Duty Cycle
40
50
100
40
%
One Sigma Jitter, ACLK
VDD = 3.3 V
VDD = 5.0 V
ps
ps
Absolute Clock Period Jitter
VDD = 3.3 V, except
CCLK = 20 MHz
300
ps
VDD = 5.0 V, except
CCLK = 20 MHz
200
ps
External Components
A minimum number of external components are required for proper operation. A decoupling capacitor of 0.01 µF
should be connected between VDD and GND on pins 4 and 6, 16 and 14, and a 33Ω terminating resistor may be
used on each clock output if the trace is longer than 1 inch.
IDT™ / ICS™ MPEG CLOCK SYNTHESIZER
5
ICS650-12
REV E 051310
ICS650-12
MPEG CLOCK SYNTHESIZER
CLOCK SYNTHESIZER
Package Outline and Package Dimensions (20-pin SSOP)
Package dimensions are kept current with JEDEC Publication No. 95
Millimeters
Min Max
Inches
20
Symbol
Min
Max
A
A1
b
1.35
0.10
0.20
0.18
8.55
5.80
3.80
1.75
0.25
0.30
0.25
8.75
6.20
4.00
0.053
0.004
0.008
0.007
0.337
0.228
0.150
0.069
0.010
0.012
0.010
0.344
0.244
0.157
E1
E
INDEX
AREA
c
D
E
E1
e
1 2
0.635 Basic
0.025 Basic
L
α
0.40
0°
1.27
8°
0.016
0°
0.050
8°
D
A
A1
c
- C -
e
SEATING
PLANE
b
L
.10 (.004)
C
Ordering Information
Part / Order Number
650R-12LF
Marking
650R-12LF
650R-12LF
Shipping Packaging
Tubes
Package
20-pin SSOP
20-pin SSOP
Temperature
0 to +70° C
0 to +70° C
650R-12LFT
Tape and Reel
"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 Device Technology (IDT) 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 IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT
does not authorize or warrant any IDT product for use in life support devices or critical medical instruments.
IDT™ / ICS™ MPEG CLOCK SYNTHESIZER
6
ICS650-12
REV E 051310
ICS650-12
MPEG CLOCK SYNTHESIZER
CLOCK SYNTHESIZER
Innovate with IDT and accelerate your future networks. Contact:
www.IDT.com
For Sales
800-345-7015
408-284-8200
Fax: 408-284-2775
For Tech Support
www.idt.com/go/clockhelp
Corporate Headquarters
Integrated Device Technology, Inc.
www.idt.com
© 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device
Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered
trademarks used to identify products or services of their respective owners.
Printed in USA
相关型号：
ICS650R-21ILF
Processor Specific Clock Generator, 100MHz, CMOS, PDSO20, 0.150 INCH, ROHS COMPLIANT, SSOP-20
IDT
©2020 ICPDF网 联系我们和版权申明