ICS9120-45 [ICSI]
Low-Cost 8-Pin Frequency Generator; 低成本8引脚频率发生器
| 型号： | ICS9120-45 |
| 厂家： | 
INTEGRATED CIRCUIT SOLUTION INC |
| 描述： | Low-Cost 8-Pin Frequency Generator |
| 文件： | 总5页 (文件大小：80K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Integrated
Circuit
Systems, Inc.
ICS9120-45
Low-Cost 8-Pin Frequency Generator
General Description
Features
The ICS9120-45 is a high performance frequency generator
designed to support the clock requirements of communication
and audio interfaces.
•
Generates 32MHz, 40MHz and 48MHz
Single 10 MHz crystal reference
•
•
•
•
•
•
•
49.92 MHz accuracy tracks 40.32 MHz reference
80ps one sigma jitter maintains 16-bit performance
Output rise/fall times less than 1.5ns
On-chip loop filter components
3.0-5.5V supply range
8-pin, 150-mil SOIC package
High accuracy, low-jitter PLLs meet the -96dB signal-to-
noise ratios required by 16-bit audio systems. Fast output
clock edge rates minimize board induced jitter.
The on-chip XTAL oscillator accuracy is better than ±100ppm
for an AT cut, 18pF load crystal with initial accuracy of ppm
plus TC, aging and load variation of ±20ppm each assuming
33pF ±5% external load capacitors.
Pin Configuration
8 Pin SOIC
Block Diagram
Thisdatasheet(ICS9120-45)isanaddedumtotheexistingICS9120-08/09
datasheet. Allinformationinthisdatasheetsupersedesthedatafoundinthe
orginalICS9120-08/09datasheet.
9120-45 RevB05/23/97
ICS reserves the right to make changes in the device data identified in this
publication without further notice. ICS advises its customers to obtain the latest
version of all device data to verify that any information being relied upon by the
customer is current and accurate.
ICS9120-45
Pin Descriptions
PIN
NUMBER
PIN NAME
TYPE
DESCRIPTION
10.00 MHz input from crystal.
1
X1
Input
Power
Output
Output
Output
Power
Output
Output
2
3
4
5
6
7
8
VDD
+Power supply input.
40 MHz clock output.
50 MHz clock output.
48 MHz clock output.
Ground return for Pin 2.
32 MHz clock output.
10.00 MHz output.
40.00 MHz
50.00 MHz
48.00 MHz
GND
32.00 MHz
X2
Note: The 10.00 MHz crystal that is connected to pin 1 and 8 is a parallel resonant component
that is designed to operate into a 8pF capacitive load. This device is a 5V power supply device.
2
ICS9120-45
Absolute Maximum Ratings
AVDD,VDD referenced to GND . . . . . . . . . . . . . . . . 7V
Operating temperature under bias. . . . . . . . . . . . . . . . 0°C to +70°C
Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . -65°C to +150°C
Voltage on I/O pins referenced to GND. . . . . . . . . . . GND -0.5V toVDD +0.5V
Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5Watts
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 +5.5V, TA = 0-70oC unless otherwise stated
DC Characteristics
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
TEST CONDITIONS
MIN
TYP
-
MAX
0.8
UNITS
V
-
VIH
IIL
2.0
-
-
V
VIN=0V (For -09 only)
VIN=VDD (For -09 only)
IOL=+10mA
-
-8.3
-
-18.0
5.0
µA
µA
V
IIH
-
VOL*
-
0.15
3.7
0.4
VOH
IOL*
IOH
*
IOH=-30mA
2.4
-
V
VOL=0.8V
25.0
45.0
-53.0
22.0
180.0
400.0
-
mA
mA
mA
µA
k ohm
*
VOH=2.4V
-
-
-
-
-35.0
50.0
500.0
800.0
ICC
ICC
Unloaded
Supply Current
Unloaded (For -09 only)
(For -09 only)
AC Characteristics
15pF load
Rpu*
Pull-up Resistor Value
Tr*
Tf*
Tr*
Tf*
Dt*
Rise Time 0.8 to 2.0V
Fall Time 2.0 to 0.8V
Rise Time 20% to 80%
Fall Time 80% to 20%
-
-
-
-
0.9
0.7
1.8
1.4
2.0
1.5
ns
ns
ns
ns
15pF load
15pF load
3.25
2.5
15pF load
15pF load @ 50% of VDD;
Except REFCLK
15pf load @ 50% of VDD;
REFCLK only
For all frequencies except
REFCLK
For all frequencies except
REFCLK
Duty Cycle
45.0
40.0
-
50.0
50.0
55.0
60.0
-
%
%
ps
ps
Dt*
Tjis*
Tjab
Duty Cycle
Jitter, One Sigma
Jitter, Absolute
85.0
-700.0
380.0
700.0
Tjis*
Tjab
Jitter, One Sigma
Jitter, Absolute
REFCLK only
-
-1.5
11.0
11.0
-
266.0
380.0
14.0
-
600.0
1.5
ps
ns
REFCLK only
Fi*
Input Frequency
17.0
42.0
12.0
-
MHz
MHz
ms
Fo*
Output Frequency
Power-up Time
Tpu*
Cinx*
0 to 33.8 MHz
5.5
Crystal Input Capacitance
X1 (Pin 1)# X2 (Pin 8; -08 only)
-
5
pF
* Parameter is guaranteed by design and characterization. Not 100% tested in production.
3
ICS9120-45
Electrical Characteristics at 3.3 V
DC Characteristics
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
TEST CONDITIONS
MIN
TYP
-
MAX
0.2VDD
-
UNITS
V
-
VIH
IIL
0.7VDD
-
V
VIN=0V (For -09 only)
VIN=VDD (For -09 only)
IOL=6mA
-
-3.6
-8.0
5.0
µA
µA
V
IIH
-
-
VOL*
-
0.05VDD
0.94VDD
24.0
-13.0
13.0
50.0
620.0
0.1
VOH
IOL*
IOH
*
IOH=-4.0mA
0.85VDD
-
V
VOL=0.2VDD
VOH=0.7VDD
Unloaded
15.0
-
mA
mA
mA
µA
k ohm
*
-
-
-
-
-8.0
32.0
110.0
900.0
ICC
Supply Current
ICC(PD)
Rpu*
Unloaded (For -09 only)
(For -09 only)
AC Characteristics
15pF load
Pull-up Resistor Value
Rise Time 0.8 to 2.0V
Fall Time 2.0 to 0.8V
Rise Time 20% to 80%
Fall Time 80% to 20%
Tr*
Tf*
Tr*
Tf*
-
-
-
-
1.5
1.0
2.2
1.5
4.0
3.0
4.0
3.0
ns
ns
ns
ns
15pF load
15pF load
15pF load
15pF load @ 50% of VDD;
Except REFCLK
15pF load @ 50% of VDD;
REFCLK only
For all frequencies except
REFCLK
Duty Cycle
Dt*
Dt*
Tjis*
Tjab
45.0
40.0
-
50.0
45.0
55.0
60.0
-
%
%
ps
ps
Duty Cycle
Jitter, One Sigma
Jitter, Absolute
100.0
380.0
For all frequencies except
REFCLK
-900.0
900.0
Jitter, One Sigma
Jitter, Absolute
Tjis*
Tjab
REFCLK only
-
266.0
380.0
14.3
-
600.0
1.5
ps
ns
REFCLK only
-1.5
11.0
11.0
Input Frequency
Fi*
15.0
38.0
MHz
MHz
Output Frequency
Power-up Time
Fo*
Tpu*
Cinx*
0 to 33.8 MHz - 5.5 12.0 ms
Crystal Input Capacitance
X1 (Pin 1)# X2 (Pin 8; -08 only)
-
5
-
pF
* Parameter is guaranteed by design and characterization. Not 100% tested in production.
4
ICS9120-45
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-45
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
ICS reserves the right to make changes in the device data identified in this
publication without further notice. ICS advises its customers to obtain the latest
version of all device data to verify that any information being relied upon by the
customer is current and accurate.
5
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