ICS552ARI01 [ICSI]
Oscillator, Multiplier, and Buffer with 8 Outputs; 振荡器，乘法器和缓冲区有8个输出
| 型号： | ICS552ARI01 |
| 厂家： | 
INTEGRATED CIRCUIT SOLUTION INC |
| 描述： | Oscillator, Multiplier, and Buffer with 8 Outputs |
| 文件： | 总10页 (文件大小：184K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICS552A-01
Oscillator, Multiplier, and Buffer with 8 Outputs
ICS552A-01 (for B mode)
• Up to 200 MHz clock input/output at 3.3 V
Description
The ICS552A-01 produces 8 low-skew copies of the
multiple input clock or fundamental, parallel-mode
crystal. Unlike other clock drivers, these parts do not
require a separate oscillator for the input. Using ICS’
patented Phase-Locked Loop (PLL) to multiply the
input frequency, it is ideal for generating and
• Low skew of 250 ps maximum for any bank of four
• Inputs can be connected together for a 1 to 8 buffer
with 250 ps skew between any outputs
• Non-inverting buffer mode
• Ideal for clock networks
distributing multiple high-frequency clocks. This is a
single chip used for 3 different applications:
• Output Enable mode tri-states outputs
• Full CMOS output swing with 25 mA output drive
1) ICS552A-01 (A mode) — an Oscillator mutiplier
2) ICS552A-01 (B mode) — a Dual 1:4 buffer
3) ICS552A-01 (C mode) — a 1:8 Oscillator buffer
capability at TTL levels
• Advanced, low power, sub-micron CMOS process
ICS552A-01 (for C mode)
• Use with 25 MHz crystal for networking
• Use with 27 MHz crystal for MPEG
Features (all)
• Packaged as 20-pin SSOP (QSOP)
• Pb-free packaging available
ICS552A-01 (for A and C modes)
• Input frequency of 10.0 to 27.0 MHz
• Provides 8 low-skew outputs (<250 ps)
• Output clock duty cycle of 40/60 at 3.3 V
• Operating voltages of 3.0 V to 5.5 V
• Industrial temperature available
Features (specific)
ICS552A-01 (for A mode)
• Contains on-chip multiplier with selections of x1,
x1.33, x2, x2.66, x3, x3.33, x4, x4.66, x5, and x6
• Power-down and Tri-state modes
Block Diagram (ICS552A-01—A mode)
VDD
4
CLK1
CLK2
CLK3
S3:S0
CLK4
PLL
Multiplier
CLK5
10.0 to 27.0 MHz
CLK6
CLK7
CLK8
crystal or clock input
X1
Crystal
Buffer/
Crystal
Oscillator
X2
GND
External capacitors are
required with a crystal input.
MDS 552A-01 B
1
Revision 010906
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
ICS552A-01
Oscillator, Multiplier, and Buffer with 8 Outputs
Multiplier Select Table
Pin Assignment (ICS552A-01—A mode)
S3
0
S2
0
S1
0
S0
0
Multiplier
Power Down
x1
DC
X2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
S0
DC
0
0
0
1
X1/ICLK
CLK8
CLK7
VDD
0
0
1
0
x1.333
x2
VDD
S2
0
0
1
1
GND
CLK1
CLK2
CLK3
CLK4
S3
0
1
0
0
x2.666
x3
GND
CLK6
CLK5
S1
0
1
0
1
0
1
1
0
x3.333
x4
0
1
1
1
1
0
0
0
x5
20-pin (150 mil) SSOP (QSOP)
1
0
0
1
x4.66
x6
1
0
1
0
1
1
0
1
Tri-state all
Pin Descriptions (ICS552A-01—A mode)
Pin
Number
Pin
Name
Pin
Type
Pin Description
1
2
DC
X2
—
Do not connect.
XO
Crystal connection. Connect to a 10 - 27 MHz fundamental mode crystal.
Crystal connection. Connect to a 10 - 27 MHz fundamental mode crystal or
clock.
3
X1/ICLK
XI
4
VDD
S2
Power
Input
Connect to +3.3 V or 5 V. Decouple with pin 6. Must be same as other VDDs.
Multiplier Select pin 2 per table above.
5
6
GND
CLK1
CLK2
CLK3
CLK4
S1
Power
Connect to ground.
7
Output Output clock 1.
Output Output clock 2.
Output Output clock 3.
Output Output clock 4.
8
9
10
11
12
13
14
15
16
17
18
19
20
Input
Multiplier Select pin 1 per table above
CLK5
CLK6
GND
S3
Output Output clock 5.
Output Output clock 6.
Power
Input
Connect to ground.
Multiplier Select pin 3 per table above
Connect to +3.3 V or 5 V. Decouple with pin 14. Must be same as other VDDs.
VDD
CLK7
CLK8
DC
Power
Output Output clock 7.
Output Output clock 8.
Do not connect.
—
S0
Input
Multiplier Select pin 0 per table above
MDS 552A-01 B
2
Revision 010906
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
ICS552A-01
Oscillator, Multiplier, and Buffer with 8 Outputs
Block Diagram (ICS552A-01—B mode)
INA
S1
QA1
QA2
QA3
QA4
QB1
QB2
QB3
QB4
Control
Logic
S0
INB
Pin Assignment (ICS552A-01—B mode)
INA
DC
DC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
S0
INB
QB4
QB3
VDD
VDD
VDD
GND
QA1
QA2
QA3
QA4
VDD
GND
QB2
QB1
S1
20-pin (150 mil) SSOP (QSOP)
Clock Output Select Table (ICS552A-01—B mode)
S1 S0
Mode
0
0
1
1
0
1
0
1
QA1:4 and QB1:4 running
Test mode
OE. All outputs in high impedance
QA1:4 only. QB1:4 stopped low
MDS 552A-01 B
3
Revision 010906
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
ICS552A-01
Oscillator, Multiplier, and Buffer with 8 Outputs
Pin Descriptions (ICS552A-01—B mode)
Pin
Pin
Pin
Type
Pin Description
Number Name
1
2
INA
DC
CI
—
Input to buffer A. Outputs QA1:4 will be the same frequency. Internal pull-up resistor.
Do not connect.
3
DC
—
Do not connect.
4
VDD
VDD
GND
QA1
QA2
QA3
QA4
Power
Power
Power
Connect to +3.3 V or 5.0 V. Must be same as other VDDs.
Connect to +3.3 V or 5.0 V. Must be same as other VDDs.
5
6
Connect to ground.
7
Output Output 1 from buffer A.
Output Output 2 from buffer A.
Output Output 3 from buffer A.
Output Output 4 from buffer A.
8
9
10
Mode Select pin 1. Selects mode for outputs. Must be at GND for all clocks on. Internal
pull-up resistor.
11
S1
I
12
13
14
15
16
17
18
19
QB1
QB2
GND
VDD
VDD
QB3
QB4
INB
Output Output 1 from buffer B.
Output Output 2 from buffer B.
Power
Power
Power
Connect to ground.
Connect to +3.3 V or 5.0 V. Must be same as other VDDs.
Connect to +3.3 V or 5.0 V. Must be same as other VDDs.
Output Output 3 from buffer B.
Output Output 4 from buffer B.
Input to buffer B. Outputs QA1:4 will be the same frequency. Internal pull-up resistor.
CI
Mode Select pin 0. Selects mode for outputs. Must be at GND for all clocks on. Internal
pull-up resistor.
20
S0
I
KEY: CI = clock input with pull-up resistor; I = input with internal pull-up resistor.
MDS 552A-01 B
4
Revision 010906
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
ICS552A-01
Oscillator, Multiplier, and Buffer with 8 Outputs
Block Diagram (ICS552A-01—C mode)
VDD
5
CLK1
CLK2
CLK3
CLK4
CLK5
CLK6
CLK7
CLK8
10.0 to 27.0 MHz
crystal input
X1
Crystal
Oscillator
X2
3
External capacitors are
required with a crystal input.
GND
Pin Assignment (ICS552A-01—C mode)
DC
X2
X1
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VDD
DC
CLK8
CLK7
VDD
VDD
GND
GND
CLK1
CLK2
CLK3
CLK4
VDD
GND
CLK6
CLK5
VDD
20-pin (150 mil) SSOP (QSOP)
MDS 552A-01 B
5
Revision 010906
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
ICS552A-01
Oscillator, Multiplier, and Buffer with 8 Outputs
Pin Descriptions (ICS552A-01—C mode)
Pin
Number
Pin
Name
Pin
Type
Pin Description
1
2
DC
X2
—
Do not connect.
XO
Crystal connection. Connect to a 10 - 27 MHz fundamental mode crystal.
Crystal connection. Connect to a 10 - 27 MHz fundamental mode crystal.
Connect to +3.3 V or 5 V. Decouple with pin 6. Must be same as other VDDs.
Connect to ground.
3
X1
XI
4
VDD
GND
GND
CLK1
CLK2
CLK3
CLK4
VDD
CLK5
CLK6
GND
VDD
VDD
CLK7
CLK8
DC
Power
Power
Power
5
6
Connect to ground.
7
Output Output clock 1.
Output Output clock 2.
Output Output clock 3.
Output Output clock 4.
8
9
10
11
12
13
14
15
16
17
18
19
20
Power
Connect to +3.3 V or 5 V. Must be same as other VDDs.
Output Output clock 5.
Output Output clock 6.
Power
Power
Power
Connect to ground.
Connect to +3.3 V or 5 V. Must be same as other VDDs.
Connect to +3.3 V or 5 V. Decouple with pin 14. Must be same as other VDDs.
Output Output clock 7.
Output Output clock 8.
Do not connect.
—
VDD
Power
Connect to +3.3 V or 5 V. Must be same as other VDDs.
MDS 552A-01 B
6
Revision 010906
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
ICS552A-01
Oscillator, Multiplier, and Buffer with 8 Outputs
PCB Layout Recommendations
External Components
For optimum device performance and lowest output
phase noise, the following guidelines should be
observed.
Series Termination Resistor
Clock output traces over one inch should use series
termination. To series terminate a 50Ω trace (a
commonly used trace impedance), place a 33Ω resistor
in series with the clock line, as close to the clock output
pin as possible. The nominal impedance of the clock
output is 20Ω.
1) Each 0.01µF decoupling capacitor should be
mounted on the component side of the board as close
to the VDD pin as possible. No vias should be used
between decoupling capacitor and VDD pin. The PCB
trace to VDD pin should be kept as short as possible,
as should the PCB trace to the ground via.
Decoupling Capacitors
2) The external crystal should be mounted just next to
the device with short traces. The X1 and X2 traces
should not be routed next to each other with minimum
spaces, instead they should be separated and away
from other traces.
As with any high-performance mixed-signal IC, the
ICS552A-01 must be isolated from system power
supply noise to perform optimally.
Decoupling capacitors of 0.01µF must be connected
between each VDD and GND on pins 4 and 6, and 16
and 14. Other VDDs and GNDs can be connected to
these pins or directly to their respective ground planes.
3) To minimize EMI, the 33Ω series termination resistor
(if needed) should be placed close to the clock output.
4) An optimum layout is one with all components on the
same side of the board, minimizing vias through other
signal layers.
Crystal Load Capacitors
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)
been the crystal and device. Crystal capacitors must be
connected from each of the pins X1 and X2 to ground.
The value (in pF) of these crystal caps should equal
(C -12 pF)*2. In this equation, C = crystal load
L
L
capacitance in pF. Example: For a crystal with a 18 pF
load capacitance, two 12 pF capacitors should be
used. For a clock input, connect it X1/ICLK and leave
X2 unconnected (floating).
MDS 552A-01 B
7
Revision 010906
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
ICS552A-01
Oscillator, Multiplier, and Buffer with 8 Outputs
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the ICS552A-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.
Parameter
Condition
Min.
Typ.
Max.
7
Units
V
Supply Voltage, VDD
Inputs
Referenced to GND
Referenced to GND
Referenced to GND
-0.5
-0.5
-65
VDD+0.5
VDD+0.5
150
V
Clock Outputs
V
Storage Temperature
Soldering Temperature
Junction Temperature
°C
°C
°C
Max 10 seconds
260
125
Recommended Operation Conditions
Parameter
Min.
0
Typ.
Max.
+70
Units
°C
Ambient Operating Temperature (commercial)
Ambient Operating Temperature (industrial)
-40
+85
°C
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V or 5 V, Ambient Temperature -40 to +85°C
Parameter
Operating Voltage
Input High Voltage
Input Low Voltage
Input High Voltage
Input Low Voltage
Output High Voltage
Symbol
Conditions
Min.
Typ.
Max. Units
VDD
3.0
5.5
V
V
V
V
V
V
V
ICLK
ICLK
VDD/2+1 VDD/2
IH
V
VDD/2 VDD/2-1
0.8
IL
V
S3:S0
2
IH
V
S3:S0
IL
V
VDD = 3.3 V,
2.4
OH
I
= -8 mA
OH
Output Low Voltage
Output High Voltage
Short Circuit Current
V
VDD = 3.3 V,
= 8 mA
0.4
V
V
OL
OH
OS
I
OL
V
VDD = 3.3 V or 5 V,
= -8 mA
VDD-0.4
I
OH
I
VDD = 3.3 V, each
output
50
mA
MDS 552A-01 B
8
Revision 010906
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
ICS552A-01
Oscillator, Multiplier, and Buffer with 8 Outputs
Parameter
Symbol
Conditions
Min.
Typ.
Max. Units
Operating Supply Current
I
I
I
at 3.3 V, no load, 25
MHz in, x4
35
mA
DD
DD
DD
Operating Supply Current
at 5 V, no load, 25 MHz
in, x4
59
55
mA
µA
Power-down Supply
Current
S3:S0 = 0 (GND)
AC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V or 5 V, Ambient Temperature -40 to +85° C
Parameter
Symbol
Conditions
Fundamental crystal
Input clock
Min.
10
Typ.
Max. Units
Input Frequency
F
27
27
MHz
MHz
ns
IN
10
Output Rise Time
Output Fall Time
Duty Cycle
t
0.8 to 2.0 V
1.5
1.5
60
OR
t
2.0 to 0.8 V
ns
OF
at VDD/2
40
50
%
Output-to-Output Skew
All modes, Rising
edges at VDD/2
250
ps
Absolute Jitter
Mode A, Deviation from
Mean
75
25
ps
ps
One Sigma Clock Period Jitter
Mode A
Thermal Characteristics
Parameter
Symbol
Conditions
Min.
Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
θ
θ
Still air
135
93
°C/W
°C/W
°C/W
°C/W
JA
JA
JA
JC
1 m/s air flow
3 m/s air flow
78
Thermal Resistance Junction to Case
θ
60
MDS 552A-01 B
9
Revision 010906
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
ICS552A-01
Oscillator, Multiplier, and Buffer with 8 Outputs
Package Outline and Package Dimensions (20-pin SSOP, 150 Mil. Wide Body)
Package dimensions are kept current with JEDEC Publication No. 95
Millimeters
Inches
20
Symbol
Min
Max
1.75
0.25
1.50
0.30
0.25
8.75
6.20
4.00
Min
Max
A
A1
A2
b
1.35
0.10
--
0.20
0.18
8.55
5.80
3.80
0.053
0.004
--
0.008
0.007
0.337
0.228
0.150
0.069
0.010
0.059
0.012
0.010
0.344
0.244
0.157
E1
E
INDEX
AREA
c
D
E
E1
e
1
2
D
.635 Basic
.025 Basic
L
α
0.40
0°
1.27
8°
0.016
0°
0.050
8°
aaa
--
0.10
--
0.004
A
A2
A1
c
- C -
e
SEATING
PLANE
b
L
aaa C
Ordering Information
Part / Order Number
Marking
Shipping Packaging
Tubes
Package
Temperature
0 to +70°C
ICS552AR-01
ICS552AR-01T
ICS552AR-01LF
ICS552AR-01LFT
ICS552ARI-01
ICS552AR-01
ICS552AR-01
552AR-01LF
552AR-01LF
ICS552ARI01
ICS552ARI01
552ARI01LF
552ARI01LF
20-pin SSOP
20-pin SSOP
20-pin SSOP
20-pin SSOP
20-pin SSOP
20-pin SSOP
20-pin SSOP
20-pin SSOP
Tape and Reel
Tubes
0 to +70°C
0 to +70°C
Tape and Reel
Tubes
0 to +70°C
-40 to +85°C
-40 to +85°C
-40 to +85°C
-40 to +85°C
ICS552ARI-01T
ICS552ARI-01LF
ICS552ARI-01LFT
Tape and Reel
Tubes
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 552A-01 B
10
Revision 010906
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
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