PRELIMINARY
HIGH SPEED, ÷2, DIFFERENTIAL-TO-3.3V,
5V LVPECL/ECL CLOCK GENERATOR
ICS873032
G
ENERAL
D
ESCRIPTION
The ICS8 73032 is a high speed, high perfor-
mance Differential-to-3.3V, 5V LVPECL/ECL Clock
HiPerClockS™
Generator and a member of the HiPerClockS ™
family of High Perfor mance Clock Solutions
from IDT. The ICS873032 is characterized to
operate from either a 3.3V for a 5V power supply.
F
EATURES
•
One differential 3.3V, 5V LVPECL / ECL output
•
One differential PCLK, nPCLK input pair
•
PCLK, nPCLK pair can accept the following
differential input levels: LVPECL, LVDS, CML, SSTL
•
Input frequency: 4GHz
•
Translates any single ended input signal to 3.3V
LVPECL levels with resistor bias on nPCLK input
•
LVPECL mode operating voltage supply range:
V
CC
= 3.0V to 5.5V, V
EE
= 0V
•
ECL mode operating voltage supply range:
V
CC
= 0V, V
EE
= -5.5V to -3.0V
•
-40°C to 85°C ambient operating temperature
•
Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
IC
S
B
LOCK
D
IAGRAM
RESET
P
IN
A
SSIGNMENT
RESET
PCLK
nPCLK
V
BB
1
2
3
4
8
7
6
5
Vcc
Q
nQ
V
EE
PCLK
nPCLK
V
BB
÷2
Q
nQ
ICS873032
8-Lead SOIC
3.90mm x 4.90mm x 1.37mm package body
M Package
Top View
ICS873032
8-Lead TSSOP, 118 mil
3mm x 3mm x 0.95mm package body
G Package
Top View
The Preliminary Information presented herein represents a product in pre-production. The noted characteristics are based on initial product characterization
and/or qualification. Integrated Device Technology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.
IDT
™
/ ICS
™
3.3V, 5V LVPECL/ECL CLOCK GENERATOR
1
ICS873032AM REV. B JANUARY 8, 2008
ICS873032
HIGH SPEED, ÷2, DIFFERENTIAL-TO-3.3V, 5V LVPECL/ECL CLOCK GENERATOR
PRELIMINARY
T
ABLE
1. P
IN
D
ESCRIPTIONS
Number
1
2
3
4
5
6, 7
8
Name
RESET
PCLK
nPCLK
V
BB
V
EE
nQ, Q
V
CC
Input
Input
Input
Output
Power
Output
Power
Type
Description
Pulldown Reset pin. Single-ended 100h LVPECL interface levels.
Pulldown Clock input. Default LOW when left floating. LVPECL interface levels.
Pulldown Clock input. LVPECL interface levels.
Bias voltage.
Negative supply pin.
Differential output pair. LVPECL interface levels.
Positive supply pin.
NOTE:
Pulldown
refers to internal input resistors. See Table 2, Pin Characteristics, for typical values.
T
ABLE
2. P
IN
C
HARACTERISTICS
Symbol
R
PULLDOWN
Parameter
Input Pulldown Resistor
Test Conditions
Minimum
Typical
75
Maximum
Units
kΩ
T
ABLE
3. T
RUTH
T
ABLE
Inputs
PCLK
X
nPCLK
X
RESET
Z
Q
L
F
Outputs
nQ
H
F
Z
nZ
L
Z = LOW to HIGH transistion
nZ = HIGH to LOW transistion
F = Divide by 2 Function
PCLK
t
RR
RESET
t
PW
Q
F
IGURE
1. T
IMING
D
IAGRAM
IDT
™
/ ICS
™
3.3V, 5V LVPECL/ECL CLOCK GENERATOR
2
ICS873032AM REV. B JANUARY 8, 2008
ICS873032
HIGH SPEED, ÷2, DIFFERENTIAL-TO-3.3V, 5V LVPECL/ECL CLOCK GENERATOR
PRELIMINARY
A
BSOLUTE
M
AXIMUM
R
ATINGS
Supply Voltage, V
CC
Negative Supply Voltage, V
EE
Inputs, V
I
(LVPECL mode)
Inputs, V
I
(ECL mode)
Outputs, I
O
Continuous Current
Surge Current
V
BB
Sink/Source, I
BB
Storage Temperature, T
STG
6V (LVPECL mode, V
EE
= 0)
-6V (ECL mode, V
CC
= 0)
-0.5V to V
CC
+ 0.5V
0.5V to V
EE
- 0.5V
50mA
100mA
± 0.5mA
-65°C to 150°C
NOTE:
Stresses beyond those listed under Absolute Maximum
Ratings may cause permanent damage to the device. These
ratings are stress specifications only. Functional operation of
product at these conditions or any conditions beyond those listed
in the
DC Characteristics
or
AC Characteristics
is not implied.
Exposure to absolute maximum rating conditions for extended
periods may affect product reliability.
Operating Temperature Range, T
A
-40°C to +85°C
Package Thermal Impedance,
θ
JA
127°C/W (0 lfpm)
(Junction-to-Ambient) for 8 Lead SOIC
Package Thermal Impedance,
θ
JA
156.4°C/W (0 mps)
(Junction-to-Ambient) for 8 Lead TSSOP
T
ABLE
4A. P
OWER
S
UPPLY
DC C
HARACTERISTICS
,
V
CC
= 3.0V
TO
5.5V; V
EE
= 0V
Symbol
V
CC
I
EE
Parameter
Positive Supply Voltage
Power Supply Current
Test Conditions
Minimum
3.0
Typical
3.3
22
Maximum
5. 5
Units
V
mA
T
ABLE
4B. LVPECL DC C
HARACTERISTICS
,
V
CC
= 3.3V; V
EE
= 0V
Symbol
V
OH
V
OL
V
IH
V
IL
V
BB
V
PP
Parameter
Output High Voltage; NOTE 1
Output Low Voltage; NOTE 1
Input High Voltage
(Single-Ended)
Input Low Voltage
(Single-Ended)
Output Voltage Reference
Min
2.175
1.405
2.075
1.43
1.86
-40°C
Typ
2.275
1.545
Max
2.38
1.68
2.36
1.765
1.98
Min
2.225
1.425
2.075
1.43
1.86
25°C
Typ
2.295
1.52
Max
2.37
1.615
2.36
1.765
1.98
Min
2.295
1.44
2.075
1.43
1.86
85°C
Typ
2.33
1.535
Max
2.365
1.63
2.36
1.765
1.98
Units
V
V
V
V
V
150
800
1200
150
800
1200
150
Peak-to-Peak Input Voltage
Input High Voltage
1.2
3.3
1.2
3.3
1.2
V
CMR
Common Mode Range; NOTE 2, 3
Input
I
IH
PCLK, nPCLK
200
200
High Current
Input
-10
-10
I
IL
PCLK, nPCLK
-10
Low Current
Input and output parameters vary 1:1 with V
CC
. V
EE
can vary +0.925V to -0.5V.
NOTE 1: Outputs terminated with 50
Ω
to V
CC
- 2V.
NOTE 2: Common mode voltage is defined as V
IH
.
NOTE 3: For single-ended applications, the maximum input voltage for PCLK, nPCLK is V
CC
+ 0.3V.
800
1200
3.3
m
V
V
µA
µA
200
IDT
™
/ ICS
™
3.3V, 5V LVPECL/ECL CLOCK GENERATOR
3
ICS873032AM REV. B JANUARY 8, 2008
ICS873032
HIGH SPEED, ÷2, DIFFERENTIAL-TO-3.3V, 5V LVPECL/ECL CLOCK GENERATOR
PRELIMINARY
T
ABLE
4C. LVPECL DC C
HARACTERISTICS
,
V
CC
= 5V; V
EE
= 0V
Symbol
V
OH
V
OL
V
IH
V
IL
V
BB
V
PP
Parameter
Output High Voltage; NOTE 1
Output Low Voltage; NOTE 1
Input High Voltage
(Single-Ended)
Input Low Voltage
(Single-Ended)
Output Voltage Reference
Min
3.875
3.105
3.775
3.13
3.56
-40°C
Typ
3.975
3.245
Max
4.08
3.38
4.06
3.465
3.68
Min
3.925
3.125
3.775
3.13
3.56
150
1.2
25°C
Typ
3.995
3.22
Max
4.07
3.315
4.06
3.465
3.68
Min
3.995
3.14
3.775
3.13
3.56
150
1.2
85°C
Typ
4.03
3.235
Max
4.065
3.33
4.06
3.465
3.68
Units
V
V
V
V
V
150
800
1200
Peak-to-Peak Input Voltage
Input High Voltage
1.2
5
V
CMR
Common Mode Range; NOTE 2
Input
PCLK, nPCLK
200
I
IH
High Current
Input
-10
I
IL
PCLK, nPCLK
Low Current
Input and output parameters var y 1:1 with V
CC
. V
EE
can var y +0.925V to
NOTE 1: Outputs terminated with 50
Ω
to V
CC
- 2V.
NOTE 2: Common mode voltage is defined as V
IH
.
800
1200
5
800
1200
5
m
V
V
µA
µA
200
-10
200
-10
-0.5V.
T
ABLE
4D. ECL DC C
HARACTERISTICS
,
V
CC
= 0V; V
EE
= -5.5V
TO
-3.0V
Symbol
V
OH
V
OL
V
IH
V
IL
V
BB
V
PP
Parameter
Output High Voltage; NOTE 1
Output Low Voltage; NOTE 1
Input High Voltage
(Single-Ended)
Input Low Voltage
(Single-Ended)
Output Voltage Reference
-40°C
Min
-1.125
-1.895
-1.225
-1.87
-1.44
25°C
Max
-0.92
-1.62
-0.94
-1.535
-1.32
85°C
Max
-0.93
-1.685
-0.94
-1.535
-1.32
Typ
-1.025
-1.755
Min
-1.075
-1.875
-1.225
-1.87
-1.44
Typ
-1.005
-1.78
Min
-1.005
-1.86
-1.225
-1.87
-1.44
150
V
EE
+1.2V
Typ
-0.97
-1.765
Max
-0.935
-1.67
-0.94
-1.535
-1.32
Units
V
V
V
V
V
150
800
1200
150
Peak-to-Peak Input Voltage
Input High Voltage
V
EE
+1.2V
0
V
EE
+1.2V
V
CMR
Common Mode Range; NOTE 2
Input
I
IH
200
PCLK, nPCLK
High Current
Input
-10
-10
I
IL
PCLK, nPCLK
Low Current
Input and output parameters vary 1:1 with V
CC
. V
EE
can vary +0.925V to -0.5V.
NOTE 1: Outputs terminated with 50
Ω
to V
CC
- 2V.
NOTE 2: Common mode voltage is defined as V
IH
.
800
1200
0
800
1200
0
m
V
V
µA
µA
20 0
-10
200
IDT
™
/ ICS
™
3.3V, 5V LVPECL/ECL CLOCK GENERATOR
4
ICS873032AM REV. B JANUARY 8, 2008
ICS873032
HIGH SPEED, ÷2, DIFFERENTIAL-TO-3.3V, 5V LVPECL/ECL CLOCK GENERATOR
PRELIMINARY
T
ABLE
5. AC C
HARACTERISTICS
,
V
CC
= 0V; V
EE
= -5.5V
TO
-3.0V
Symbol
f
MAX
Parameter
Input Frequency
Propagation Delay; NOTE 1
Set/Reset Recovery
Output Rise/Fall Time
20% to 80%
Min
Typ
TBD
TBD
TBD
TBD
OR
V
CC
= 3.0
TO
5.5V; V
EE
= 0V
-40°C
Ma x
Min
25°C
Typ
4
400
175
160
Max
Min
85°C
Typ
TBD
TBD
TBD
TBD
TBD
Max
Units
GHz
ps
ps
ps
ps
t
PD
t
RR
t
R
/t
F
t
PW
Pulse Width
RESET
TBD
50 0
All parameters are measured at f
≤
1.7GHz, unless otherwise noted.
NOTE 1: Measured from the differential input crossing point to the differential output crossing point.
IDT
™
/ ICS
™
3.3V, 5V LVPECL/ECL CLOCK GENERATOR
5
ICS873032AM REV. B JANUARY 8, 2008
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