ICS9120M-48LF [IDT]
Clock Generator, 52MHz, PDSO8, 0.150 INCH, SOIC-8;
| 型号： | ICS9120M-48LF |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Clock Generator, 52MHz, PDSO8, 0.150 INCH, SOIC-8 时钟 光电二极管 外围集成电路 晶体 |
| 文件： | 总5页 (文件大小：189K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICS9120-48
Integrated
Circuit
Systems, Inc.
Frequency Generator for CD-ROM Systems
General Description
Features
The ICS9120-48 is a high performance frequency generator
designed to support digital compact disk drive systems. It
offers all clock frequencies required for the servo and decoder
sections of these devices. These frequencies are synthesized
from a single 16.9344 MHz on-chip oscillator.
Generates the output clock frequencies required by
CD-ROM drive systems
Single 16.9344 MHz crystal or system clock reference
100ps one sigma jitter
Output rise/fall times less than 2.0ns (at 5V VDD)
On-chip loop filter components
3.0V-5.5V supply range
150 ppm output frequency accuracy
8-pin, 150-mil SOIC
High accuracy, low jitter PLLs meet the 150 ppm frequency
tolerance required by these systems. Fast output clock edge
rates minimize board induced jitter.
Unlike competitive devices, the ICS9120-48 operates over
the entire 3.0-5.5V range.
Applications
Specifically designed to support CD-ROM drive
requirements of multimedia applications
Block Diagram
9120-48 Rev A110196
ICS9120-48
External Components/Crystal Selection
Pin Configuration
The ICS9120-48 incorporates a crystal oscillator circuit de-signed
to provide 50% duty cycle over a range of operating conditions,
including the addition of external crystal load ca-pacitors to pins
X1 and X2. A parallel resonant 16.9344 MHz, 12pF load crystal is
recommended. A series resonant crystal or a parallel resonant
crystal specifying a different load can be used, but either will
result in frequencies which are slightly (up to 0.06%) different
from the ideal.
The crystal load capacitance can be increased by adding a capacitor
to each of the X1 and X2 pins and ground. This enables the use of
a crystal specifying a load greater than 12pF without changing the
output frequency.
8-Pin SOIC
Duty cycle is also maintained when using an external clock source
(connected to X1, X2 left unconnected) as long as the external
clock has good duty cycle.
Pin Descriptions for ICS9120-48
PIN
PIN
TYPE
DESCRIPTION
NUMBER NAME
1
2
3
4
5
6
7
8
X1
Input Crystal or external clock source. Has feedback bias for crystal.
Power +Power supply input.
VDD
GND
CLK3
CLK2
CLK4
CLK1
X2
Power Ground return for Pin 2.
Output 33.8688 MHz target output clock.
Output 22.5792 MHz target output clock.
Output 42.336 MHz target output clock.
Output 16.9344 MHz reference clock buffered output.
Output Crystal output drive (leave this pin unconnected when using an external clock).
2
ICS9120-48
Absolute Maximum Ratings
AVDD,VDD referenced to GND .......................................................................... 7V
Operating temperature under bias .................................................... 0oC to +70oC
Storage temperature ..................................................................... -65oC to +150oC
Voltage on I/O pins referenced to GND ...................... GND -0.5V toVDD +0.5V
Power dissipation ...................................................................................... 0.5 Watts
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress
rating only and 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 may
affect product reliability.
Electrical Characteristics at 5 V
VDD = +4.5 to +5.5 V, TA = 0 to 70oC unless otherwise stated
DC Characteristics
PARAMETER
SYMBOL
VIL
TEST CONDITIONS
MIN
TYP
-
MAX
0.8
-
UNITS
V
Input Low Voltage
Input High Voltage
Input Low Current
Input High Current
Output Low Voltage
Output High Voltage
Output Low Current
Output High Current
Supply Current
-
VIH
2.0
-
V
IIL
VIN=0V
-18.0
-8.3
-
-
µA
µA
V
IIH
VIN=VD D
-
5.0
0.4
-
VOL*
VO H*
IOL*
IOH*
IDD*
Rpu*
IOL=+10mA
IOH=-30mA
VOL=0.8V
VOH=2.4V
Unloaded
-
2.4
25.0
-
0.15
3.7
V
45.0
-53.0
30.0
400.0
-
mA
mA
mA
k ohm
-35.0
70.0
800.0
-
Pull-up Resistor Value
-
AC Characteristics
15pF load 0.8 to 2.0V
15pF load 2.0 to 0.8V
15pF load 20% to 80%
15pF load 80% to 20%
Rise Time
Fall Time
Rise Time
Fall Time
Tr*
Tf*
Tr*
Tf*
-
-
-
-
0.8
0.6
1.7
1.1
2.0
1.5
2.5
2.0
ns
ns
ns
ns
15pF load @ 50% of
VDD; Except REFCLK
15pF load @ 50% of
VDD; REFCLK only
For all frequencies except
REFCLK
Duty Cycle
Dt*
Dt*
45.0
40.0
-
50.0
55.0
55.0
60.0
%
%
ps
ps
Duty Cycle
Jitter, One Sigma
Jitter, Absolute
Tjis*
Tjab*
130.0
350.0
180.0
400.0
For all frequencies
except REFCLK
-400.0
Jitter, One Sigma
Tjis*
Tjab*
Fi*
REFCLK only
-
-700.0
11.0
14.0
-
150.0
400.0
14.0
-
200.0
700.0
17.0
ps
ns
Jitter Absolute
REFCLK only
Input Frequency Range
Output Frequency Range
Power-up Time
MHz
MHz
ms
Fo*
52.0
Tpu*
0 to 40.3 MHz
5.5
12.0
X1 (Pin 1),
X2 (Pin 8)
Crystal Input Capacitance
Cinx*
-
5
-
pF
*Parameter is guaranteed by design and characterization. Not 100% tested in production.
3
ICS9120-48
Electrical Characteristics at 3.3 V
VDD = +3.0 to +3.7V, TA = 0OC-70oC unless otherwise stated
DC Characteristics
TEST CONDITIONS
PARAMETER
Input Low Voltage
Input High Voltage
Input Low Current
Input High Current
Output Low Voltage
Output High Voltage
Output Low Current
Output High Current
Supply Current
SYMBOL
VIL
MIN
TYP
-
MAX
UNITS
V
-
0.2VDD
VIH
0.7VDD
-
-
-
V
IIL
VIN=0V
-8.0
-3.6
µA
µA
V
IIH
VIN=VDD
-
-
5.0
0.1
-
VOL*
VO H*
IOL*
IOH*
IDD*
IOL=6.0mA
IOH=4.0mA
VOL=0.2VDD
VOH=0.7VDD
Unloaded
-
0.05VD D
0.94VD D
24.0
-13.0
23.0
0.85VDD
V
15.0
-
mA
mA
mA
-
-
-8.0
45.0
AC Characteristics
Rise Time
Fall Time
Rise Time
Fall Time
Tr*
Tf*
Tr*
Tf*
15pF load 0.8 to 2.0V
15pF load 2.0 to 0.8V
15pF load 20% to 80%
15pF load 80% to 20%
-
-
-
-
2.2
1.2
2.5
1.4
3.5
2.0
3.5
2.5
ns
ns
ns
ns
15pF load @ 50% of
VDD; Except REFCLK
15pF load @ 50% of
VDD; REFCLK only
For all frequencies
except REFCLK
Duty Cycle
Dt*
Dt*
45.0
40.0
-
50.0
45.0
55.0
65.0
%
%
ps
ps
Duty Cycle
Jitter, One Sigma
Jitter Absolute
Tjis*
Tjab*
130.0
400.0
200
For all frequencies
except REFCLK
-500.0
500.0
Jitter, One Sigma
Tjis*
Tjab*
Fi*
REFCLK only
REFCLK only
-
-500.0
11.0
14.0
-
170.0
300.0
14.3
-
250.0
500.0
17.0
ps
ns
Jitter, Absolute
Input Frequency Range
Output Frequency Range
Power-up Time
MHz
MHz
ms
Fo*
42.0
Tpu*
0 to 33.8 MHz
5.5
12.0
X1 (Pin 1),
X2 (Pin 8)
Crystal Input Capacitance
Cinx*
-
5
-
pF
*Parameter is guaranteed by design and characterization. Not 100% tested in production.
4
ICS9120-48
0.154
0.194
0.031
0.024
0.063
0.008
0.015
0.025
0.016
0.238
0.050
0.006
± 0.004
8-Pin SOIC Package
Ordering Information
ICS9120M-48
Example:
ICS XXXX M-PPP
Pattern Number (2 or 3-digit number for parts with ROM code pattern)
Package Type
M =SOIC
Device Type (consists of 3 or 4-digit numbers)
Prefix
ICS, AV=Standard Device
5
相关型号：
©2020 ICPDF网 联系我们和版权申明