ICS83940DYI IDT, Integrated Device Technology Inc, ICS83940DYI Datasheet

ICS83940DYI

Manufacturer Part Number
ICS83940DYI
Description
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock Driverr
Datasheet

Specifications of ICS83940DYI

Number Of Clock Inputs
2
Output Frequency
250MHz
Output Logic Level
LVCMOS/LVTTL
Operating Supply Voltage (min)
2.375V
Operating Supply Voltage (typ)
2.5/3.3V
Operating Supply Voltage (max)
3.465V
Package Type
LQFP
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
32
Lead Free Status / Rohs Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ICS83940DYI-01LF
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
ICS83940DYI-01LFT
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
ICS83940DYILF
Manufacturer:
IDT
Quantity:
4 218
Part Number:
ICS83940DYILF
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
ICS83940DYILFT
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Company:
Part Number:
ICS83940DYILFT
Quantity:
1 734
General Description
The ICS83940DI is a low skew, 1-to-18 LVPECL- to-LVCMOS/LVTTL
Fanout Buffer. The ICS83940DI has two selectable clock inputs. The
PCLK, nPCLK pair can accept LVPECL, CML, or SSTL 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 ICS83940DI is characterized at full 3.3V and 2.5V or mixed 3.3V
core, 2.5V output operating supply modes. Guaranteed output and
part-to-part skew characteristics make the ICS83940DI ideal for
those clock distribution applications demanding well defined
performance and repeatability.
ICS83940DYI REVISION C SEPTEMBER 7, 2010
Block Diagram
LVCMOS_CLK
Pin Assignments
LVCMOS_CLK
CLK_SEL
CLK_SEL
nPCLK
PCLK
nPCLK
5mm x 5mm x 0.925mm package body
PCLK
V
GND
GND
V
DDO
DD
Pullup/Pulldown
Pulldown
Pulldown
Pulldown
5
6
7
8
1
2
3
4
32 31 30 29 28 27 26 25
9
10 11 12 13 14 15 16
32 Lead VFQFN
ICS83940DI
Low Skew, 1-to18
LVPECL-to-LVCMOS/LVTTL Fanout Buffer
K Package
Top View
0
1
24
23
22
21
20
19
18
17
Q7
Q9
Q10
Q6
Q8
V
Q11
GND
18
DD
Q0:Q17
1
Features
Eighteen LVCMOS/LVTTL outputs
Selectable LVCMOS_CLK or LVPECL clock inputs
PCLK, nPCLK pair can accept the following differential input
levels: LVPECL, CML, SSTL
LVCMOS_CLK supports the following input types: LVCMOS or
LVTTL
Maximum output frequency: 250MHz
Output skew: 150ps (maximum)
Part-to-part skew: 750ps (maximum)
Operating supply modes:
Core/Output
3.3V/3.3V
3.3V/2.5V
2.5V/2.5V
-40°C to 85°C ambient operating temperature
Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
LVCMOS_CLK
CLK_SEL
nPCLK
PCLK
7mm x 7mm x 1.4mm package body
V
GND
GND
V
DDO
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
32-Lead LQFP
ICS83940DI
Y Package
Top View
©2010 Integrated Device Technology, Inc.
ICS83940DI
DATA SHEET
24
23
22
21
20
19
18
17
Q6
Q7
Q8
V
Q9
Q10
Q11
GND
DD

Related parts for ICS83940DYI

ICS83940DYI Summary of contents

Page 1

... V 8 DDO Lead VFQFN 5mm x 5mm x 0.925mm package body K Package Top View ICS83940DYI REVISION C SEPTEMBER 7, 2010 Features • Eighteen LVCMOS/LVTTL outputs • Selectable LVCMOS_CLK or LVPECL clock inputs • PCLK, nPCLK pair can accept the following differential input levels: LVPECL, CML, SSTL • ...

Page 2

... R Input Pulldown Resistor PULLDOWN Power Dissipation Capacitance C PD (per output) R Output Impedance OUT ICS83940DYI REVISION C SEPTEMBER 7, 2010 Type Description Power Power supply ground. Input Pulldown Single-ended clock input. LVCMOS/LVTTL interface levels. Clock select input. When HIGH, selects LVCMOS_CLK input. Input Pulldown When LOW, selects PCLK, nPCLK inputs ...

Page 3

... Biased; NOTE 1 0 – Biased; NOTE NOTE 1: Please refer to the Application Information Section, Wiring the Differential Input to Accept Single-ended Levels. ICS83940DYI REVISION C SEPTEMBER 7, 2010 Clock LVCMOS_CLK De-selected Selected Outputs PCLK nPCLK Q[0:17 LOW 1 0 HIGH 0 Biased; NOTE 1 ...

Page 4

... V PP NOTE 1 Common Mode Input Voltage; V CMR NOTE Power Supply Current DD NOTE 1: V should not be less than -0.3V. IL NOTE 2: Common mode voltage is defined as V ICS83940DYI REVISION C SEPTEMBER 7, 2010 = V = 3.3V ± 5 -40°C to 85°C DD DDO A Test Conditions LVCMOS_CLK LVCMOS_CLK I = -20mA 20mA ...

Page 5

... V PP NOTE 1 Common Mode Input Voltage; V CMR NOTE Power Supply Current DD NOTE 1: V should not be less than -0.3V. IL NOTE 2: Common mode voltage is defined as V ICS83940DYI REVISION C SEPTEMBER 7, 2010 = V = 2.5V ± 5 -40°C to 85°C DD DDO A Test Conditions LVCMOS_CLK LVCMOS_CLK I = -12mA 12mA ...

Page 6

... NOTE 5: This parameter is defined in accordance with JEDEC Standard 65. NOTE 6: Defined as skew between outputs on different devices, across temperature and voltage ranges, and with equal load conditions. Using the same type of inputs on each device, the outputs are measured at V ICS83940DYI REVISION C SEPTEMBER 7, 2010 = V = 3.3V ± 5 -40° ...

Page 7

... NOTE 5: This parameter is defined in accordance with JEDEC Standard 65. NOTE 6: Defined as skew between outputs on different devices, across temperature and voltage ranges, and with equal load conditions. Using the same type of inputs on each device, the outputs are measured at V ICS83940DYI REVISION C SEPTEMBER 7, 2010 = 3.3V ± 5 2.5V ± 5%, T ...

Page 8

... NOTE 5: This parameter is defined in accordance with JEDEC Standard 65. NOTE 6: Defined as skew between outputs on different devices, across temperature and voltage ranges, and with equal load conditions. Using the same type of inputs on each device, the outputs are measured at V ICS83940DYI REVISION C SEPTEMBER 7, 2010 = V = 2.5V ± 5 -40° ...

Page 9

... Core/2.5V LVCMOS Output Load AC Test Circuit Part 1 V DDO Qx 2 Part 2 V DDO Qy 2 tsk(pp) Part-to-Part Skew ICS83940DYI REVISION C SEPTEMBER 7, 2010 LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS/LVTTL FANOUT BUFFER 1.25V±5% SCOPE V DD, V DDO Qx LVCMOS GND -1.25V±5% 2.5V Core/2.5V LVCMOS Output Load AC Test Circuit ...

Page 10

... Q0:Q17 t R 3.3V Output Rise/Fall Time nPCLK PCLK LVCMOS_CLK V DDO Q0:Q17 Propagation Delay ICS83940DYI REVISION C SEPTEMBER 7, 2010 LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS/LVTTL FANOUT BUFFER 2.4V 0.5V Q0:Q17 t F 2.5V Output Rise/Fall Time Q0:Q17 Output Duty Cycle/Pulse Width/Period 10 1.8V 1.8V 0. DDO ...

Page 11

... This can be done in one of two ways. First, R3 and R4 in parallel should equal the transmission Figure 1. Recommended Schematic for Wiring a Differential Input to Accept Single-ended Levels ICS83940DYI REVISION C SEPTEMBER 7, 2010 line impedance. For most 50Ω applications, R3 and R4 can be 100Ω ...

Page 12

... SSTL R1 120 Figure 2E. PCLK/nPCLK Input Driven by an SSTL Driver ICS83940DYI REVISION C SEPTEMBER 7, 2010 The input interfaces suggested here are examples only. If the driver and is from another vendor, use their termination recommendation. PP Please consult with the vendor of the driver component to confirm the driver termination requirements ...

Page 13

... All control pins have internal pullups or pulldowns; additional resistance is not required but can be added for additional protection. A 1kΩ resistor can be used. ICS83940DYI REVISION C SEPTEMBER 7, 2010 LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS/LVTTL FANOUT BUFFER and dependent upon the package power dissipation as well as electrical conductivity requirements. Thus, thermal and electrical analysis and/or testing are recommended to determine the minimum number needed ...

Page 14

... Table 6B. vs. Air Flow Table for a 32 Lead VFQFN JA Meters per Second Multi-Layer PCB, JEDEC Standard Test Boards Transistor Count The transistor count for ICS83940DI is: 820 ICS83940DYI REVISION C SEPTEMBER 7, 2010 LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS/LVTTL FANOUT BUFFER θ vs. Air Flow JA 0 200 47.9° ...

Page 15

... Basic D2 & E2 5.60 Ref. e 0.80 Basic L 0.45 0.60 θ 0° ccc Reference Document: JEDEC Publication 95, MS-026 ICS83940DYI REVISION C SEPTEMBER 7, 2010 LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS/LVTTL FANOUT BUFFER Maximum 1.60 0.15 1.45 0.45 0.20 0.75 7° 0.10 15 ©2010 Integrated Device Technology, Inc. ...

Page 16

... Minimum Nominal 0. 0.25 Ref. b 0.18 0.25 N & & E 5.00 Basic D2 & E2 3.0 e 0.50 Basic L 0.30 0.40 Reference Document: JEDEC Publication 95, MO-220 ICS83940DYI REVISION C SEPTEMBER 7, 2010 ( Anvil Anvil Singulation Singula tion (Ref.) N & N Odd Bottom View w/Type NOTE: The following package mechanical drawing is a generic drawing that applies to any pin count VFQFN package ...

Page 17

... Any other applications, such as those requiring high reliability or other extraordinary environmental requirements are not recommended without additional processing by IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments. ICS83940DYI REVISION C SEPTEMBER 7, 2010 LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS/LVTTL FANOUT BUFFER Package ...

Page 18

... B T7B ICS83940DYI REVISION C SEPTEMBER 7, 2010 Description of Change Pin Characteristics table - changed R Delete R row. PULLUP 3.3V Output Load AC Test Circuit diagram - corrected GND equation to read -1.65V... from -1.165V... Added LVTTL to title. Updated format. Features Section - added Lead-Free bullet. Application Information Section - added Recommendations for Unused Input and Output Pins ...

Page 19

ICS83940DI Data Sheet We’ve Got Your Timing Solution 6024 Silver Creek Valley Road Sales 800-345-7015 (inside USA) San Jose, California 95138 +408-284-8200 (outside USA) Fax: 408-284-2775 www.IDT.com/go/contactIDT DISCLAIMER Integrated Device Technology, Inc. (IDT) and its subsidiaries reserve the right to ...

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