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PDF ICS85322 Data sheet ( Hoja de datos )
| Número de pieza | ICS85322 | |
| Descripción | LVPECL TRANSLATOR | |
| Fabricantes | ICST | |
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Integrated
Circuit
Systems, Inc.
ICS85322
DUAL LVCMOS / LVTTL-TO-DIFFERENTIAL
2.5V / 3.3V LVPECL TRANSLATOR
GENERAL DESCRIPTION
The ICS85322 is a Dual LVCMOS / LVTTL-to-
,&6 Differential 2.5V / 3.3V LVPECL translator and a
HiPerClockS™ member of the HiPerClocks™ family of High Per-
formance Clocks Solutions from ICS. The
ICS85322 has selectable single ended clock in-
puts. The single ended clock input accepts LVCMOS or LVTTL
input levels and translate them to 2.5V / 3.3V LVPECL levels.
The small outline 8-pin SOIC package makes this device ideal
for applications where space, high performance and low power
are important.
FEATURES
• 2 differential 2.5V/3.3V LVPECL outputs
• Selectable CLK0, CLK1 LVCMOS clock inputs
• CLK0 and CLK1 can accepts the following input levels:
LVCMOS or LVTTL
• Maximum output frequency up to 267MHz
• Part-to-part skew: 150ps (maximum)
• 3.3V operating supply voltage
(operating range 3.135V to 3.465V)
• 2.5V operating supply voltage
(operating range 2.375V to 2.625V)
• 0°C to 70°C ambient operating temperature
• Industrial temperature information available upon request
BLOCK DIAGRAM
CLK0
CLK1
Q0
nQ0
Q1
nQ1
PIN ASSIGNMENT
Q0
nQ0
Q1
nQ1
1
2
3
4
8 VCC
7 CLK0
6 CLK1
5 VEE
ICS85322
8-Lead SOIC
3.90mm x 4.92mm x 1.37mm body package
M Package
Top View
85322AM
www.icst.com/products/hiperclocks.html
1
REV. A JULY 31, 2001
1 page  
Integrated
Circuit
Systems, Inc.
ICS85322
DUAL LVCMOS / LVTTL-TO-DIFFERENTIAL
2.5V / 3.3V LVPECL TRANSLATOR
TABLE 3D. POWER SUPPLY DC CHARACTERISTICS, VCC = 2.5V±5%, TA = 0°C TO 70°C
Symbol
Parameter
Test Conditions Minimum
VCC Positive Supply Voltage
IEE Power Supply Current
2.375
Typical
2.5
Maximum
2.625
25
Units
V
mA
TABLE 3E. LVCMOS / LVTTL DC CHARACTERISTICS, VCC = 2.5V±5%, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum
VIH Input High Voltage CLK0, CLK1
VIL Input Low Voltage CLK0, CLK1
IIH Input High Current CLK0, CLK1
IIL Input Low Current CLK0, CLK1
VCC = VIN = 2.625
VCC = VIN = 2.625
1.6
-0.3
-150
Typical
Maximum
2.925
0.9
5
Units
V
V
µA
µA
TABLE
3F.
LVPECL
DC
CHARACTERISTICS,
V
CC
=
2.5V±5%,
TA
=
0°C
TO
70°C
Symbol Parameter
Test Conditions
VOH Output High Voltage; NOTE 1
VOL Output Low Voltage; NOTE 1
VSWING
Peak-to-Peak Output Voltage Swing
NOTE 1: Outputs terminated with 50Ω to VCC - 2V.
Minimum
VCC - 1.4
VCC - 2.0
0.65
Typical
Maximum
VCC - 1.0
VCC - 1.7
0.9
Units
V
V
V
TABLE 4B. AC CHARACTERISTICS, VCC = 2.5V±5%, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum
fMAX
tPD
tsk(pp)
Maximum Output Frequency
Propagation Delay; NOTE 1
Part-to-Part Skew; NOTE 2, 3
ƒ ≤ 215MHz
0.8
215
2
150
tR Output Rise Time
tF Output Fall Time
odc Output Duty Cycle
20% to 80% @ 50MHz
20% to 80% @ 50MHz
300
300
40
All parameters measured at 133MHz unless noted otherwise.
NOTE 1: Measured from the 50% point of the input to the differential output crossing point.
NOTE 2: Defined as skew between outputs on different devices operating at the same supply voltages
and with equal load conditions. Using the same type of inputs on each device, the outputs are measured
at the differential cross points.
NOTE 3: This parameter is defined in accordance with JEDEC Standard 65..
700
700
60
Units
MHz
ns
ps
ps
ps
%
85322AM
www.icst.com/products/hiperclocks.html
5
REV. A JULY 31, 2001
5 Page 
Integrated
Circuit
Systems, Inc.
ICS85322
DUAL LVCMOS / LVTTL-TO-DIFFERENTIAL
2.5V / 3.3V LVPECL TRANSLATOR
RELIABILITY INFORMATION
TABLE 6. θJAVS. AIR FLOW TABLE
qJA by Velocity (Linear Feet per Minute)
0
Single-Layer PCB, JEDEC Standard Test Boards 153.3°C/W
Multi-Layer PCB, JEDEC Standard Test Boards 112.7°C/W
200
128.5°C/W
103.3°C/W
500
115.5°C/W
97.1°C/W
NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs.
TRANSISTOR COUNT
The transistor count for ICS85322 is: 269
85322AM
www.icst.com/products/hiperclocks.html
11
REV. A JULY 31, 2001
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet ICS85322.PDF ] | |
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