ICS83948AYI-147 ICST [Integrated Circuit Systems], ICS83948AYI-147 Datasheet

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ICS83948AYI-147

Manufacturer Part Number
ICS83948AYI-147
Description
LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER
Manufacturer
ICST [Integrated Circuit Systems]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ICS83948AYI-147LF
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
ICS83948AYI-147LFT
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
LVCMOS_CLK
G
The CLK, nCLK pair can accept most standard differential
input levels. The LVCMOS_CLK can accept LVCMOS or
LVTTL input levels. The low impedance LVCMOS/LVTTL out-
puts are designed to drive 50Ω series or parallel terminated
transmission lines. The effective fanout can be increased
from 12 to 24 by utilizing the ability of the outputs to drive two
series terminated lines.
The ICS83948I-147 is characterized at full 3.3V or full 2.5V
operating supply modes. Guaranteed output and part-to-part
skew characteristics make the ICS83948I-147 ideal for those
clock distribution applications demanding well defined per-
formance and repeatability.
B
83948AYI-147
HiPerClockS™
IC S
LOCK
ENERAL
CLK_SEL
CLK_EN
nCLK
CLK
OE
D
The ICS83948I-147 is a low skew, 1-to-12
Differential-to-LVCMOS/LVTTL Fanout Buffer and
a member of the HiPerClockS™ family of High
Performance Clock Solutions from ICS. The
ICS83948I-147 has two selectable clock inputs.
IAGRAM
Integrated
Circuit
Systems, Inc.
D
ESCRIPTION
1
0
D
LE
Q
www.icst.com/products/hiperclocks.html
D
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
IFFERENTIAL
1
P
F
• Twelve LVCMOS/LVTTL outputs
• Selectable LVCMOS/LVTTL clock
• CLK, nCLK pair can accept the following differential
• LVCMOS_CLK accepts the following input levels:
• Output frequency: 350MHz (maximum)
• Output skew (at 3.3V ± 5%): 100ps (maximum)
• Part-to-part skew (at 3.3V ± 5%): 1ns (maximum)
• Full 3.3V or full 2.5V operating supply
• -40°C to 85°C ambient operating temperature
• Available in both standard and lead-free RoHS-compliant
or differential CLK, nCLK inputs
input levels: LVPECL, LVDS, LVHSTL, HCSL, SSTL
LVCMOS or LVTTL
packages
IN
EATURES
LVCMOS_CLK
-
A
TO
CLK_SEL
CLK_EN
SSIGNMENT
-LVCMOS/LVTTL F
nCLK
GND
CLK
V
OE
DD
7mm x 7mm x 1.4mm package body
1
2
3
4
5
6
7
8
32 31 30 29 28 27 26 25
9 10 11 12 13 14 15 16
ICS83948I-147
32-Lead LQFP
ICS83948I-147
Y Package
Top View
L
OW
S
ANOUT
KEW
REV. B NOVEMBER 21, 2005
24
23
22
21
20
19
18
17
, 1-
B
GND
Q4
V
Q5
GND
Q6
V
Q7
TO
UFFER
DDO
DDO
-12

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ICS83948AYI-147 Summary of contents

Page 1

Integrated Circuit Systems, Inc ENERAL ESCRIPTION The ICS83948I-147 is a low skew, 1-to- Differential-to-LVCMOS/LVTTL Fanout Buffer and HiPerClockS™ a member of the HiPerClockS™ family of High Performance Clock Solutions from ICS. The ICS83948I-147 has two selectable ...

Page 2

Integrated Circuit Systems, Inc ABLE IN ESCRIPTIONS ...

Page 3

Integrated Circuit Systems, Inc BSOLUTE AXIMUM ATINGS Supply Voltage Inputs, V -0. Outputs, V -0. Package Thermal Impedance, θ JA Storage Temperature, T -65°C to 150°C STG T 4A. ...

Page 4

Integrated Circuit Systems, Inc ABLE HARACTERISTICS ...

Page 5

Integrated Circuit Systems, Inc ABLE HARACTERISTICS ...

Page 6

Integrated Circuit Systems, Inc. P ARAMETER 1.65V ± DDO LVCMOS GND -1.65V ± UTPUT OAD EST IRCUIT V DD nCLK V Cross Points PP CLK GND D I ...

Page 7

Integrated Circuit Systems, Inc IRING THE IFFERENTIAL NPUT TO Figure 1 shows how the differential input can be wired to accept single ended levels. The reference voltage V_REF = V generated by the bias resistors R1, R2 ...

Page 8

Integrated Circuit Systems, Inc. θ ABLE VS IR LOW ABLE FOR JA θ θ θ θ θ Single-Layer PCB, JEDEC Standard Test Boards Multi-Layer PCB, JEDEC Standard Test Boards NOTE: Most modern ...

Page 9

Integrated Circuit Systems, Inc ACKAGE UTLINE UFFIX FOR EAD ABLE ACKAGE ...

Page 10

Integrated Circuit Systems, Inc ABLE RDERING NFORMATION ...

Page 11

Integrated Circuit Systems, Inc ...

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