ICS83948AYILF IDT, Integrated Device Technology Inc, ICS83948AYILF Datasheet

IC FANOUT BUFFER 1:12 32-LQFP

ICS83948AYILF

Manufacturer Part Number
ICS83948AYILF
Description
IC FANOUT BUFFER 1:12 32-LQFP
Manufacturer
IDT, Integrated Device Technology Inc
Series
HiPerClockS™r
Type
Fanout Buffer (Distribution), Multiplexerr
Datasheet

Specifications of ICS83948AYILF

Number Of Circuits
1
Ratio - Input:output
2:12
Differential - Input:output
Yes/No
Input
HCSL, LVCMOS, LVDS, LVHSTL, LVPECL, LVTTL, SSTL
Output
LVCMOS, LVTTL
Frequency - Max
250MHz
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
32-LQFP
Frequency-max
250MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
800-1120
83948AYILF

Available stocks

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Part Number
Manufacturer
Quantity
Price
Part Number:
ICS83948AYILF
Manufacturer:
IDT
Quantity:
231
Part Number:
ICS83948AYILF
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
ICS83948AYILFT
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Block Diagram
LVCMOS_CLK
LOW SKEW, 1-TO-12 DIFFERENTIAL-
TO-LVCMOS/LVTTL FANOUT BUFFER
General Description
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 outputs 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 is characterized at full 3.3V core/3.3V output.
Guaranteed output and part-to-part skew characteristics make the
ICS83948I ideal for those clock distribution applications
demanding well defined performance and repeatability.
IDT™ / ICS™ LVCMOS/LVTTL CLOCK GENERATOR
HiPerClockS™
ICS
CLK_SEL
CLK_EN
nCLK
CLK
OE
Pullup
Pullup
Pullup
Pulldown
Pullup
Pullup
The ICS83948I 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 IDT. The
ICS83948I has two selectable clock inputs. The
1
0
D
Q
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
1
Features
Twelve LVCMOS/LVTTL outputs
Selectable differential CLK/nCLK or LVCMOS/LVTTL clock
input
CLK/nCLK pair can accept the following differential
input levels: LVPECL, LVDS, LVHSTL, SSTL, HCSL
LVCMOS_CLK supports the following input types: LVCMOS,
LVTTL
Maximum output frequency: 250MHz
Output skew: 350ps (maximum)
Part-to-part skew: 1.5ns (maximum)
3.3V core, 3.3V output
-40°C to 85°C ambient operating temperature
Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
LVCMOS_CLK
Pin Assignment
CLK_SEL
CLK_EN
nCLK
GND
7mm x 7mm x 1.4mm package body
CLK
V
OE
DD
1
2
3
4
5
6
7
8
32 31 30 29 28 27 26 25
9
10 11 12 13 14 15 16
ICS83948AYI REV. C NOVEMBER 7, 2008
32-Lead LQFP
Y Package
ICS83948I
Top View
ICS83948I
24
23
22
21
20
19
18
17
Q4
GND
Q6
GND
V
Q5
V
Q7
DDO
DDO

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ICS83948AYILF Summary of contents

Page 1

LOW SKEW, 1-TO-12 DIFFERENTIAL- TO-LVCMOS/LVTTL FANOUT BUFFER General Description The ICS83948I is a low skew, 1-to-12 ICS Differential-to-LVCMOS/LVTTL Fanout Buffer and a member of the HiPerClockS™ family of High HiPerClockS™ Performance Clock Solutions from IDT. The ICS83948I has two selectable ...

Page 2

ICS83948I LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER Table 1. Pin Descriptions Number Name 1 CLK_SEL 2 LVCMOS_CLK 3 CLK 4 nCLK 5 CLK_EN Power DD 8, 12, 16, GND Power 20, 24, 28 11, ...

Page 3

ICS83948I LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER Table 3B. Clock Input Function Table Inputs CLK_SEL LVCMOS_CLK 0 – 0 – 0 – 0 – 0 – Biased; NOTE 1 0 – Biased; NOTE Absolute Maximum ...

Page 4

ICS83948I LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER Table 4B. DC Characteristics, V Symbol Parameter V Input High Voltage IH V Input Low Voltage IL V Peak-to-Peak Input Voltage; NOTE Common Mode Input Voltage; NOTE 1, 2 CMR ...

Page 5

ICS83948I LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER Parameter Measurement Information 1.65V±0.15V V DD, V DDO LVCMOS GND -1.65V±0.15V 3.3V Core/3.3V LVCMOS Output Load AC Test Circuit Part 1 V DDO Qx 2 Part 2 V DDO Qy 2 tsk(pp) Part-to-Part ...

Page 6

ICS83948I LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER Parameter Measurement Information, continued LVCMOS_CLK nCLK CLK V DDO 2 Q0:Q11 ➤ ➤ Propagation Delay IDT™ / ICS™ LVCMOS/LVTTL CLOCK GENERATOR ICS83948AYI REV. C NOVEMBER 7, 2008 6 ...

Page 7

ICS83948I LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER Application Information Wiring the Differential Input to Accept Single Ended Levels Figure 1 shows how the differential input can be wired to accept single ended levels. The reference voltage V_REF = V generated ...

Page 8

ICS83948I LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER Differential Clock Input Interface The CLK /nCLK accepts LVDS, LVPECL, LVHSTL, SSTL, HCSL and other differential signals. Both signals must meet the V V input requirements. Figures show interface CMR ...

Page 9

ICS83948I LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER Reliability Information θ Table 6. vs. Air Flow Table for a 32 Lead LQFP JA Linear Feet per Minute Single-Layer PCB, JEDEC Standard Test Boards Multi-Layer PCB, JEDEC Standard Test Boards Transistor Count ...

Page 10

ICS83948I LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER Package Outline and Package Dimensions Package Outline - Y Suffix for 32 Lead LQFP Table 7. Package Dimensions for 32 Lead LQFP JEDEC Variation: ABC - HD All Dimensions in Millimeters Symbol Minimum ...

Page 11

ICS83948I LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER Ordering Information Table 8. Ordering Information Part/Order Number Marking 83948AYI ICS83948AYI 83948AYIT ICS83948AYI 83948AYILF ICS83948AYIL 83948AYILFT ICS83948AYI NOTE: Parts that are ordered with an "LF" suffix to the part number are the Pb-Free ...

Page 12

ICS83948I LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER Revision History Sheet Rev Table Page IDT™ / ICS™ LVCMOS/LVTTL ...

Page 13

ICS83948I LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales 800-345-7015 408-284-8200 Fax: 408-284-2775 Corporate Headquarters Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States ...

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