ICS ICS9112-27

ICS9112-27
Integrated
Circuit
Systems, Inc.
Preliminary Product Preview
Low Skew PCI / PCI-X Buffer
General Description
Features
The ICS9112-27 is a high performance, low skew, low jitter
PCI / PCI-X clock driver. It is designed to distribute high
speed signals in PCI / PCI-X applications operating at speeds
from 0 to 140 MHz.
•
•
•
•
The ICS9112-27 is characterized for operation from -40°C to
85°C for automotive and industrial applications.
•
•
Frequency range 0 - 140 MHz (3.3V)
Less than 200 ps Jitter between outputs
Skew controlled outputs < 100 ps
Distribute one clock input to one bank of four
outputs
3.3V ±10% operation
Available in 8 pin TSSOP, and SOIC packages.
Block Diagram
LOGIC
CONTROL
CLK0
CLK1
CLK_IN
CLK2
CLK_IN
1
OE
2
CLK0
3
GND
4
ICS9112-27
OE
Pin Configuration
8
CLK3
7
CLK2
6
VDD
5
CLK1
8 pin TSSOP & SOIC
Functionality Table
CLK3
INPUTS
Pin Descriptions
OUTPUTS
CLK_IN
OE
CLK(3:0)
0
0
0
0
1
0
1
0
0
1
1
1
PIN NUMBER
PIN NAME
TYPE
1
CLK_IN
IN
Input reference frequency.
DESCRIPTION
2
OE
IN
Output enable (has internal pull_up.) when OE is low, it tristates the clock
outputs
3
CLK0
OUT
Buffered clock output
4
GND
PWR
Ground
Buffered clock output
5
CLK1
OUT
6
VDD
PWR
Power supply for 3.3V
7
CLK2
OUT
Buffered clock output
8
CLK3
OUT
Buffered clock output
9112-27 Rev B 02/27/01
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.
ICS9112-27
Preliminary Product Preview
Absolute Maximum Ratings
Supply voltage range VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 4.3 V
Input voltage rangeVI (see notes 1 & 2) . . . . . . . . . . . . -0.5V to VDD + 0.5V
Output voltage range V O (see notes 1 & 2) . . . . . . . . . -0.5V to VDD + 0.5V
Input clamp current IIK (VI< 0 or VI >VDD) . . . . . . . . . . . . . . . . . . . ±50 mA
Output clamp current IOK (VO< 0 or VO) . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Continuous total output current, IO (VO = 0 to VDD) . . . . . . . . . . . ±50 mA
Package thermal impedance ØJA (see note 3): PW package . . . 230.5°C/W
Storage temperature rante, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65°C to 150°C
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are
stress specifications only and functional operation of the device at these or any other conditions above those listed in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may affect product reliability.
Notes:
1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are
observed.
2. This value is limited to 4.6 V maximum.
3. The package thermal impedance is calculated in accordance with JESD 51.
Terminal Functions
Terminal
No
I/O
8, 7, 5, 3
O
Buffered output clocks
CLKIN
1
I
Input reference frequency
GND
4
PWR
OE
2
I
VDD 3.3V
6
PWR
CLK (3-0)
Description
Ground
Outputs enable control
3.3V supply
Recommended Operating Conditions
Supply voltage, VDD
High-level input voltage, VIH
Min
Nom
Max
Unit
3
3.3
3.6
V
0.7XVDD
V
Low-level input voltage, VIL
0.3XVDD
V
VDD
V
High-level output current, IOH
-24
mA
Low-level output current, IOL
24
mA
85
°C
Input voltage, VI
0
-40
Operating free-air temperature, TA
Timing requirements over recommended ranges of supply voltage and operating free-air temperature
Min
0
Clock frequency fCLK
2
Nom
Max
Unit
140
MHz
ICS9112-27
Preliminary Product Preview
Electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
Parameter
Input voltage VIK
Test Conditions
Low-level output voltage VOL
High-level output current IOH
Low-level output current IOL
Nom
VDD = 3.3V, II = 18 mA
VDD = min to max, IOH = -1 mA
High-level output voltage VOH
Min
Max
Unit
-1.2
V
VDD -0.2
V
VDD = 3 V IOH = 24 mA
2
V
VDD = 3 V IOH = 12 mA
2.4
V
VDD = min to max, IOL = -1 mA
0.2
V
VDD = 3 V IOL = 24 mA
0.8
V
VDD = 3 V IOL= 12 mA
0.55
V
VDD = 3 V VO = 1 V
-50
mA
VDD = 3.3 V VO = 1.65 V
VDD = 3 V VO = 2 V
-55
mA
60
mA
VDD = 3.3 V VO = 1.65 V
70
mA
Input current II
VI = VO or VDD
±5
µA
Dynamic Current, see figure 5 IDD
f = 67 MHz
37
mA
Input capacitance Ci
VDD = 3.3V VI = 0 V or VDD
3
pF
Output capacitance Co
VDD = 3.3V VI = 0 V or VDD
3.2
pF
Switching characteristics over recommended ranges of supply voltage and operating free-air temperature,
CL = 25 pF, VDD = 3.3 V (see note 6 and figures 1 and 2)
Parameter
High-to-low propagation delay tPLH
Low-to-high propagation delay tPHL
Test Conditions
See figures 1 and 2
Min
Nom
Max
Unit
1.8
2.5
3
ns
1.8
2.4
3
ns
100
ps
150
ps
Output skew (see note 4) TSK (O)
Pulse skew tSK (P)
VIH = VDD, VIL = 0 V
ns
Process skew TSK (PR)
CLK high time, see figure 4 Thigh
CLK low time, see figure 4 Tlow
66 MHz
6
140 MHz
3
66 MHz
6
140 MHz
3
ns
ns
Output rise slew rate‡ Tr
0.2VDD to 0.6VDD
1.5
2.7
4
V/ns
Output fall slew rate‡ Tf
0.6VDD to 0.2VDD
1.5
2.7
4
V/ns
3
ICS9112-27
Preliminary Product Preview
Parameter Measurement Information
VDD
140W
CLKn
140W
10 pF
Figure 1. Test Load Circuit
VDD
50% VDD
CLKIN
0V
TPHL
tPLH
0.6 VDD
0.6 VDD
50% VDD
50% VDD
0.2 VDD
CLK0-CLK3
VOH
0.2 VDD
tR
VOL
tf
Figure 2. Voltage Thresholds for Propagation Delay (tpd) Measurements
50% VDD
Any CLK
50% VDD
Any CLK
Figure 3. Output Skew
Tsk(0)
Paramameter
Value
Unit
VIH(Min)
0.5 VDD
V
VIL(Max)
0.35 VDD
V
Vtest
0.4 VDD
V
tcyc
thigh
0.6 VDD
VIH(Min)
tlow
Vtest
VIL(Max)
0.2 VDD
Figure 4. Clock Waveform
0.4 VDD
Peak to Peak (Minimum)
Note: All parameters in Figure 4 are according to PCI-X 1.0 specifications.
4
ICS9112-27
Preliminary Product Preview
Parameter Measurement Information
Supply Current
vs
Frequency
ICC - Supply Current - mA
60
VDD = 3.6 V
TA = 85°C
50
40
20
0
20
40
60
80
100
120
140
160
F - Frequency - Mhz
Figure 5
High Level Output Voltage
vs
High-Level Output Current
VOH - High-Level Output Voltage - V
3.5
VDD = 3.3 V
TA = 25°C
3.0
2.5
2.0
1.5
1.0
0.5
0
-100
-90
-80
-70
-60
-50
-40
-30
IOH-High-Level Output Current-mA
Figure 6
5
-20
-10
0
ICS9112-27
Preliminary Product Preview
Parameter Measurement Information
Low Level Output Voltage
vs
Low-Level Output Current
3.5
VDD = 3.3 V
TA = 25°C
3.0
2.5
2.0
1.5
1.0
0.5
0
-20
0
20
40
60
IOL-Low-Level Output Current-mA
Figure 7
6
80
100
120
ICS9112-27
Preliminary Product Preview
SYMBOL
In Millimeters
In Inches
COMMON DIMENSIONS COMMON DIMENSIONS
MIN
MAX
MIN
MAX
A
-
1.20
-
.047
A1
0.05
0.15
.002
.006
A2
0.80
1.05
.032
.041
b
0.19
0.30
.007
.012
c
0.09
0.20
SEE VARIATIONS
D
.0035
.008
SEE VARIATIONS
6.40 BASIC
E
E1
4.30
e
0.252 BASIC
4.50
.169
0.65 BASIC
L
0.45
0.75
SEE VARIATIONS
N
.177
0.0256 BASIC
.018
.030
SEE VARIATIONS
α
0°
8°
0°
8°
aaa
-
0.10
-
.004
MIN
MAX
MIN
2.90
3.10
.114
.122
MO-153 JEDEC
Doc.# 10-0038
7/6/00 Rev B
VARIATIONS
D mm.
N
4.40 mm. Body, 0.65 mm. pitch TSSOP
(0.0256 mil)
(173 mil)
8
D (inch)
MAX
Ordering Information
ICS9112yG-27-T
Example:
ICS XXXX y G - PPP - T
Designation for tape and reel packaging
Pattern Number (2 or 3 digit number for parts with ROM code patterns)
Package Type
G=TSSOP
Revision Designator (will not correlate with datasheet revision)
Device Type (consists of 3 or 4 digit numbers)
Prefix
ICS, AV = Standard Device
7
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.
ICS9112-27
Preliminary Product Preview
In Millimeters
In Inches
COMMON DIMENSIONS COMMON DIMENSIONS
MIN
MAX
MIN
MAX
SYMBOL
A
1.35
1.75
.0532
.0688
A1
0.10
0.25
.0040
.0098
B
0.33
0.51
.013
.020
C
0.19
0.25
SEE VARIATIONS
.0075
.0098
SEE VARIATIONS
e
3.80
4.00
1.27 BASIC
.1497
.1574
0.050 BASIC
H
5.80
6.20
.2284
.2440
h
0.25
0.50
.010
.020
L
0.40
1.27
SEE VARIATIONS
D
E
N
α
0°
.016
.050
SEE VARIATIONS
8°
0°
8°
MIN
MAX
MIN
MAX
4.80
5.00
.1890
.1968
VARIATIONS
D mm.
N
8
D (inch)
10-0030 Rev A - MS-012
150 mil (Narrow Body) SOIC
Ordering Information
ICS9112yM-27-T
Example:
ICS XXXX y M - PPP - T
Designation for tape and reel packaging
Pattern Number (2 or 3 digit number for parts with ROM code patterns)
Package Type
M=SOIC
Revision Designator (will not correlate with datasheet revision)
Device Type (consists of 3 or 4 digit numbers)
Prefix
ICS, AV = Standard Device
8
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.