Integrated
Circuit
Systems, Inc.
Obsolete
ICS9118-01
ICS9118-02
Frequency Generator for Digital Video Systems
General Description
The
ICS9118-01
and
ICS9118-02
are low-cost, high-
perform-ance clock generators designed to support digital
video sys-tems. 27 MHz VIDEO, 1.8 MHz UART and
AUDIO clocks are generated from the recovered 27 MHz
signal. The on-chip crystal oscillator can be used in
conjunction with an exter-nal D/A conversation circuit to
provide ±130 ppm clock recovery using a standard 27
MHz crystal (contact ICS for application details).
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
Generates 27 MHz VIDEO, 1.8 MHz UART and
synchronous AUDIO codec clocks
Selectable AUDIO clock supports 256x and 384x
over-sampling of 16.00, 22.05, 24.00, 32.00, 44.10
and 48.00 kHz
On-chip crystal oscillator enables 27 MHz
clock recovery
80ps one sigma jitter maintains 16-bit performance
3.0V - 5.5V supply range
14-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°
X1, X2
(MHz)
27.00
27.00
27.00
27.00
27.00
27.00
27.00
27.00
FS
[2:0]
00 0
001
010
011
100
101
110
111
AUDIO
01
(MHz)
Tristate
4.096
5.644
6.144
8.192
11.289
12.288
Low
AUDIO
02
(MHz)
Tristate
6.144
8.467. 2
9.216
12.288
16.934. 2
18.432
Low
REF
(MHz)
Tristate
27.00
27.00
27.00
27.00
7.00
27.00
Low
UART
(MHz)
Tristate
1.8620
1.8620
1.8620
1.8620
1.8620
1.8620
Low
14-Pin SOIC
ICS9118-02 Obsolete
Block Diagram
9118-01 9118-02 RevB 7/27/99
PRODUCT PREVIEW documents contain information on products in the formative or
design phase development. Charactersitic data and other specifications are design
goals. ICS reserves the right to change or discontinue these procucts without notice.
ICS9118-01
ICS9118-02
Obsolete
Pin Descriptions for ICS9118-01
PIN NUMBER
1
2
3,4
5,6,14
7
8
9
10,11
12
13
PIN NAME
X2
X1
VSS
FS(0:2)
N/C
N/C
AUDIO
VDD
UART
REF
TYPE
OUT
IN
PWR
IN
-
-
OUT
PWR
OUT
OUT
DESCRIPTION
XTAL output which includes XTAL load capacitance.
XTAL or external reference frequency input. This input includes XTAL
load capacitance and feedback bias norminally 27.0MHz
Ground for logic, PCLK and fixed frequency output buffers.
Frequency multiplier select pins. See Functionality table. These inputs have
internal pullup devices.
Not internally connected.
Not internally connected.
Audio clock output. See Functionality table.
Power for logic, PCLK and fixed frequency output buffers.
UART clock output fixed out 1.8620MHz.
Video clock output fixed out 27.00MHz.
2
Obsolete
ICS9118-01
ICS9118-02
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 3.3V
Operating V
DD
= +3.0 V to +3.7V; T
A
= 0 ºC 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 Sigmea
Jitter, Absolute
Jitter, One Sigma
Jitter, Absolute
OutputMean Frequency
Accuracy vs.Target
Power-up Time
Crystal Input Capacitance
SYMBOL
V
IL
V
IH
I
IL
I
IH
V
OL
*
V
OH
*
I
OL
*
I
OH
*
I
CC
R
pu
*
T
r
*
T
f
*
T
L
*
D
t
*
D
t
*
T
j1s
*
T
jab
*
T
j1s
*
T
jab
*
F
oa
*
T
pu
*
C
inx
*
DC Characte ris tics
TEST CONDITIONS
V
IN
=0V
V
IN
=V
DD
I
OL
=+10mA
I
OH
=-10mA
V=0.8V
V=2.4V
VDD=3.3V±10%
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;
Except UART
Audio
Audio
REFCLK, UART
REFCLK, UART
With 27.0 MHz input
From VDD=1.6V to 1st crossing of
Audio Select.
VDD supply Ramp <40ms.
X1 (Pin 1)
X2 (Pin 8)
MIN
-
2.0
-
-
-
2.4
20.0
-
-
-
-
-
45.0
40.0
TYP
-
-
-10.0
-
0.15
3.0
35.0
-20.0
14.0
400.0
1.0
1.0
50.0
45.0
50.0
MAX
0. 8
-
-18
5.0
0.4
-
-
-10.0
25.0
800.0
1. 5
1. 5
10.0
55.0
50.0
80.0
+300.0
UNITS
V
V
m
A
m
A
V
V
mA
mA
mA
k ohm
ns
ns
ms
%
%
ps
ps
%
%
ppm
ms
pF
-300.0
1.0
-80.0
2.5
18.0
3.0
+5.0
+80.0
4.5
*Parameter
is guaranteed by design and characterization. Not 100% tested in production.
3
ICS9118-01
ICS9118-02
Obsolete
Electrical Characteristics at 5 V
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
Output Mean Frequency
Accuracy vs. Target
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
j1s
*
T
jab
*
T
j1s
*
T
jab
*
F
oa
*
T
pu
*
C
inx
*
V
DD
= +4.5 to +5.5 V, T
A
= 0 to 70
o
C unless otherwise stated
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
-80.0
2.5
18
50.0
45.0
50.0
MAX
0.8
-
-18.0
5.0
0.4
-
-
-35.0
30
800.0
1.5
1.5
10.0
55.0
50.0
80.0
+300
3
+5
+80.0
4.5
UNITS
V
V
µA
µA
V
V
mA
mA
mA
k ohm
ns
ns
ms
%
%
ps
ps
%
%
ppm
ms
pF
V
IN
=0V
V
IN
=V
DD
I
OL
=+10mA
I
OH
=-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
V
DD
; Except UART
15pF load @ 50% of
V
DD
; UART only
Audio
Audio
REFCLK, UART
REFCLK, UART
With 14.318 MHz input
From VDD=1.6V to 1st crossing.
VDD supply Ramp <40ms.
X1 (Pin 1),
X2 (Pin 8)
4
Obsolete
ICS9118-01
ICS9118-02
14 Pin SOIC Package
Ordering Information
ICS9118M-01
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
PRODUCT PREVIEW documents contain information on products in the formative or
design phase development. Charactersitic data and other specifications are design
goals. ICS reserves the right to change or discontinue these procucts without notice.
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