ICST ICS9107C-22CS08 Frequency generator for fibre channel system Datasheet

ICS9107C-21
ICS9107C-22
Integrated
Circuit
Systems, Inc.
Preliminary Product Preview
Frequency Generator for Fibre Channel Systems
General Description
Features
The ICS9107C-21 and ICS9107C-22 are high-speed clock
generators designed to support fibre channel system
requirements. The ICS9107C-21 generates a single copy of
the 106.25 MHz from a 17 MHz crystal. The ICS9107C-22
provides a second copy of the 106.25 MHz clock with output
skew less than ±100ps.
•
An exact frequency multiplying ratio ensures better than
±100 ppm frequency accuracy using a standard AT crystal
with external load capacitors (typically 33pF±5% for an
18pF load crystal). Achieving ±100 ppm over four years
requires the crystal to have a ±20 ppm initial accuracy, ±30
ppm temperature and ±5 ppm/year aging coefficients.
•
•
•
•
•
•
•
Generates one or two 106.25 MHz clocks from a 17
MHz crystal
Less than 60ps one sigma jitter
Less than ±200ps absolute jitter
Output skew less than ±100ps on two channel
version (-22)
Rise/fall times less than 4ns driving 15pF
On-chip loop filter components
5.5V supply range
8-pin, 150-mil SOIC package
Applications
•
Specifically designed to support the high-speed
clocking requirements of fibre channel systems
Block Diagram
9107-21 /22 Rev C 9/14/99
PRODUCT PREVIEW documents contain information on new
products in the sampling or preproduction phase of development.
Characteristic data and other specifications are subject to change
without notice.
ICS9107C-21
ICS9107C-22
Preliminary Product Preview
Pin Configurations
8-Pin SOIC
8-Pin SOIC
Functionality
OE
X1, X2
(MHz)
FOUT
(MHz)
1
17.00
106.25
0
X
Tristate
Pin Descriptions
PIN
NUMBER PIN NAME
1
AGND
2
GND
3
X1
4
5
X2
OE
VDD
CLK2
AVDD
VDD+AVDD
6
7
8
CLK1
TYPE
DESCRIPTION
PWR
PRW
Analog ground.
Digital Ground.
C
rystal or clock input to device; nominally 17.0 MHz. Requires external load
IN
capacitors.
IN
Crystal drive output from device. Requires external load capacitors.
IN
Output enable causes all outputs to tristate when at a logic low level; has a pull-up.
PWR +5.0 volt supply (-21).
OUT 106.25 MHz clock output (-22).
PWR
PWR
Analog power. (Must equal digital power voltage) (-21).
Digital and analog power, +5.0 volt supply (-22).
OUT 106.25 MHz clock output.
2
ICS9107C-21
ICS9107C-22
Preliminary Product Preview
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 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 5.0V
Operating VDD = +4.5V to +5.5V; TA =0°C to 70°C unless otherwise stated
PARAMETER
Input Low Voltage
Input High Voltage
Input Low Current
Input High Current
Output Low Voltage1
Output High Voltage1
Output Low Current1
Output High Current1
Supply Current
Pull-up Resistor1
SYMBOL
VIL
VIH
IIL
IIH
VOL
VOH
IOL
IOH
IDD
Rpu
Rise Time1
Fall Time1
Rise Time1
Fall Time1
Duty Cycle1
Jitter, One Sigma1
Jitter, Absolute1
Tr1
Tf1
Tr2
Tf2
Dt
Tj1s
Tjab
Output Skew,1 Clock 1 to 2
tsk1
1
Input Frequency
Output Frequency1
Power-up Time1
Transition Time1
Fi
Fo
Tpu
Tft
Crystal Input Capacitance1
Cinx
Note 1:
DC Characteristics
TEST CONDITIONS
VIN=0V (Pull-up input)
VIN=VDD
IOL=10mA
IOH=-30mA
VOL=0.8V
VOH=2.0V
Unloaded
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%
15pF load @ 1.4V
15pF load
15pF load
15pF load @ 1.4V (-22
only)
8 to 66.6 MHz
X1 (Pin 3)
X2 (Pin 4)
MIN
2.0
-16.0
-2.0
2.4
22.0
-
TYP
-6.0
0.15
3.25
35.0
-50.0
22.0
380.0
MAX
0.8
2.0
0.40
-35.0
45.0
700.0
UNITS
V
V
µA
µA
V
V
mA
mA
mA
k ohms
42.0
-200.0
0.8
0.7
1.5
1.0
49.0
30.0
1.4
1.2
2.0
1.5
55.0
60.0
200.0
ns
ns
ns
ns
%
ps
ps
-100.0
-20.0
100.0
ps
11.0
2.0
-
17.0
106.25
7.58
6.0
19.0
120.0
18.0
13.0
MH z
MHz
ms
ms
-
5.0
-
pF
Parameter is guaranteed by design and characterization. Not 100% tested in production.
3
ICS9107C-21
ICS9107C-22
Preliminary Product Preview
8-Pin Plastic SOIC Package
Ordering Information
ICS9107C-21CS08 or ICS9107C-22CS08
Example:
XXX XXX PPP S X#W
Lead Count & Package Width
Lead Count=1, 2 or 3 digits
W=.3” SOIC or .6” DIP; None=Standard Width
Package Type
S=SOIC
Pattern Number (2 or 3 digit number for parts with ROM code patterns)
Device Type (consists of 3 or 4 digit numbers)
Prefix
ICS, AV=Standard Device
4
PRODUCT PREVIEW documents contain information on new
products in the sampling or preproduction phase of development.
Characteristic data and other specifications are subject to change
without notice.
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