Integrated
Circuit
Systems, Inc.
Obsolete
ICS9118-03
ICS9118-04
Frequency Generator for Digital Video Systems
General Description
The
ICS9118-03
and
ICS9118-04
are low-cost, high-
perform-ance clock generators designed to support digital
video systems. 1.8MHz UART and AUDIO clocks are
generated from the recovered 27MHz reference signal.
The -03 supports 256x audio oversampling, and the -04
supports 384x audio oversampling.
The audio clock is synthesized from 27 MHz using a high
accuracy, low jitter PLL to meet the synchronization and
-96dB signal-to-noise ratios required by 16-bit DSP systems.
Fast output clock edge rates minimize board-induced jitter.
•
•
•
•
•
•
•
Features
Genreates AUDIO codec and UART clocks
synchronized to the 27MHz recovered video clock
Selectable AUDIO clock supports 256x and 384x
over-sampling of 16.00, 22.05, 24.00, 32.00, 44.10
and 48.00 kHz
80ps one sigma jitter maintains 16 bit performance
Output rise/fall times less than 1.5nS
On chip loop filter components
3.0V - 5.5V supply range
8-pin, 150-mil SOIC package
Pin Configuration
Applications
•
Specifically designed to support the high
performance clocking requirements of digital video
set-top and multi-media systems
Functionality
VDD=3.0-5.5V, TEMP=0-70°
REF
(MHz)
27.00
27.00
27.00
27.00
27.00
27.00
27.00
27.00
FS
[2:0]
000
001
010
011
100
10 1
110
111
AUDIO
03
(MHz)
Tristate
256*16.00
256*22.05
256*24.00
256*32.00
256*44.10
256*48.00
Low
AUDIO
04
(MHz)
Tristate
384*16.00
384*22.05
384*24.00
384*32.00
384*44.10
384*48.00
Low
UART
(MHz)
Tristate
1.8620
1.8620
1.8620
1.8620
1.8620
1.8620
Low
8-Pin SOIC
ICS9118-04 Obsolete
Block Diagram
ICS9118-03/04RevB 7/28/99
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.
ICS9118-03
ICS9118-04
Obsolete
Pin Descriptions for ICS9118-01/02
PIN NUMBER
1
2
3, 4, 8
5
6
7
PIN NAME
REF
GND
FS(0:2)
AUDIO
VDD
UART
TYPE
IN
PWR
IN
OUT
PWR
OUT
DESCRIPTION
27.0MHz Reference input clock
Grond for logic, output buffers
Frequency multipler select pins. See Functionality table. These inputs have
internal pullup devices.
Audio clock output. See Functionality table.
Power for logic, PCLK and fixed frequency output buffers.
UART clock output fixed out 1.8620MHz.
2
Obsolete
ICS9118-03
ICS9118-04
Absolute Maximum Ratings
AVDD, VDD referenced to GND ........................................................................... 7V
Operating temperature under bias ...................................................... 0
o
C to +70
o
C
Storage temperature ....................................................................... -65
o
C to +150
o
C
Voltage on I/O pins referenced to GND ......................... GND -0.5V to VDD +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 5V
Operation V
DD
= +4.5 to +5.5 V, T
A
= 0 to 70
o
C unless otherwise stated
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
Pull-up Resistor Value
Rise Time
Fall Time
Lock Time
Duty Cycle
Duty Cycle
Jitter, One Sigma
Jitter, Absolute
Jitter, One Sigma
Jitter Absolute
Power-up Time
Crystal Input Capacitance
SYMBOL
V
IL
V
IH
I
IL
I
IH
V
OL
*
V
OH
*
I
OL
*
I
OH
*
I
DD
*
Rpu*
Tr*
T
f
*
T
L
*
D
t
*
D
t
*
T
jis
*
T
jab
*
T
jis
*
T
jab
*
T
pu
*
C
inx
*
DC Characteristics
TEST CONDITIONS
MIN
-
2.0
-
-
-
2.7
25.0
-
-
-
TYP
-
-
8.3
-
0.15
4.1
45.0
-53.0
22.0
400.0
1.0
1.0
45.0
40.0
-300
1.0
-5.0
-
-
2.5
18
50.0
45.0
50.0
MAX
0.8
-
-18.0
5.0
0. 4
-
-
-35.0
30.0
800.0
1.5
1.5
10.0
55.0
50.0
80.0
+300
3.0
+5.0
4.8
-
UNITS
V
V
µA
µA
V
V
mA
mA
mA
k ohm
ns
ns
ms
%
%
ps
ps
ps
ns
ms
pF
V
IN
=0V
V
IN
=V
DD
IOL=+10mA
IOH=-30mA
V
OL
=0.8V
V
OH
=2.4V
Unloaded
AC Characteristics
15pF load 0.8 to 2.0V
15pF load 2.0 to 0.8V
15pF load, 20% to 80%
15pF load @ 50% of
VDD; Except UART
15pF load @ 50% of
VDD; UART only
Audio
Audio
REFCLK, UART
REFCLK, UART
0 to 33.8MHz
X1 (Pin 1),
X2 (Pin 8)
*Parameter
is guaranteed by design and characterization. Not 100% tested in production.
3
ICS9118-03
ICS9118-04
Obsolete
Electrical Characteristics at 3.3V
Operation V
DD
= +3.0 to +3.7 V, T
A
= 0 to 70
o
C unless otherwise stated
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
Pull-up Resistor Value
Rise Time
Fall Time
Lock Time
Duty Cycle
Duty Cycle
Jitter, One Sigma
Jitter, Absolute
Jitter, One Sigma
Jitter Absolute
Power-up Time
Crystal Input Capacitance
SYMBOL
V
IL
V
IH
I
IL
I
IH
V
OL
*
V
OH
*
I
OL
*
I
OH
*
I
DD
*
Rpu*
Tr*
T
f
*
T
L
*
D
t
*
D
t
*
T
jis
*
T
jab
*
T
jis
*
T
jab
*
T
pu
*
C
inx
*
DC Characteristics
TEST CONDITIONS
MIN
-
2.0
-
-
-
2.7
25.0
-
-
-
TYP
-
-
8.3
-
0.15
3.0
45.0
-53.0
14.0
400.0
1.0
1.0
45.0
40.0
-300
1.0
-5.0
-
-
2.5
18
50.0
45.0
50.0
MAX
0.8
-
-18.0
5.0
0.4
-
-
-10.0
25.0
800.0
1.5
1. 5
10.0
55.0
50.0
80.0
+300
3.0
+5.0
4. 5
-
UNITS
V
V
µA
µA
V
V
mA
mA
mA
k oh m
ns
ns
ms
%
%
ps
ps
ps
%
%
pF
V
IN
=0V
V
IN
=V
DD
IOL=+10mA
IOH=-10mA
V
OL
=0.8V
V
OH
=2.4V
Unloaded
AC Characteristics
15pF load 0.8 to 2.0V
15pF load 2.0 to 0.8V
15pF load, 20% to 80%
15pF load @ 50% of
VDD; Except UART
15pF load @ 50% of
VDD; UART only
Audio
Audio
REFCLK, UART
REFCLK, UART
0 to 33.8MHz
X1 (Pin 1),
X2 (Pin 8)
*Parameter
is guaranteed by design and characterization. Not 100% tested in production.
4
Obsolete
ICS9118-03
ICS9118-04
8 Pin SOIC Package
Ordering Information
ICS9118M-03
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
ADVANCE INFORMATION documents contain information on
new products in the sampling or preproduction phase of devel-
opment. Characteristic data and other specifications are subject to
change without notice.
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