ICS83948AYI-147LFT IDT, Integrated Device Technology Inc, ICS83948AYI-147LFT Datasheet

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ICS83948AYI-147LFT

Manufacturer Part Number
ICS83948AYI-147LFT
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 ICS83948AYI-147LFT

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
350MHz
Voltage - Supply
2.375 V ~ 3.465 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
32-LQFP
Frequency-max
350MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
83948AYI-147LFT

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ICS83948AYI-147LFT
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-147 is characterized at full 3.3V, full 2.5V or mixed
3.3V core/2.5V output operating supply modes. Guaranteed
output and part-to-part skew characteristics make the
ICS83948I-147 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
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 IDT. The
ICS83948I-147 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
Output frequency: 350MHz
Additive phase jitter, RMS: 0.14ps (typical)
Output skew: 100ps (maximum), 3.3V±5%
Part-to-part skew: 1ns (maximum), 3.3V±5%
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
Pin Assignment
CLK_SEL
CLK_EN
nCLK
7mm x 7mm x 1.4mm package body
GND
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
ICS83948I-147
32-Lead LQFP
ICS83948AYI-147 REV. D APRIL 8, 2009
Y Package
Top View
ICS83948I-147
24
23
22
21
20
19
18
17
Q4
GND
Q6
GND
V
Q5
V
Q7
DDO
DDO

Related parts for ICS83948AYI-147LFT

ICS83948AYI-147LFT Summary of contents

Page 1

... Available in both standard (RoHS 5) and lead-free (RoHS 6) packages Pin Assignment CLK_SEL Q0 LVCMOS_CLK Q1 CLK nCLK Q2 CLK_EN GND 7mm x 7mm x 1.4mm package body Q10 Q11 1 ICS83948I-147 GND DDO GND DDO ICS83948I-147 32-Lead LQFP Y Package Top View ICS83948AYI-147 REV. D APRIL 8, 2009 ...

Page 2

... Output enable pin. When LOW, outputs are in an High-impedance state. Input Pullup when HIGH, outputs are active. LVCMOS/LVTTL interface levels. Power supply pin. Power supply ground. Single-ended clock outputs. LVCMOS/LVTTL interface levels. Output supply pins. Test Conditions 2 Minimum Typical Maximum ICS83948AYI-147 REV. D APRIL 8, 2009 Units pF Ω k Ω Ω ...

Page 3

... A Minimum Typical Maximum 3.135 3.3 3.465 3.135 3.3 3.465 55 = -40°C to 85°C A Minimum Typical Maximum 2.375 2.5 2.625 2.375 2.5 2.625 52 ICS83948AYI-147 REV. D APRIL 8, 2009 Polarity Non-Inverting Non-Inverting Non-Inverting Non-Inverting Inverting Inverting Non-Inverting Non-Inverting Units Units ...

Page 4

... A Minimum Typical Maximum 3.135 3.3 3.465 2.375 2.5 2.625 Minimum Typical Maximum 1 -0.3 -0.3 2.4 1.8 0.15 GND + 0 Ω /2. DDO ICS83948AYI-147 REV. D APRIL 8, 2009 Units Units + 0 0.3 V 0.8 V 0.7 V 300 µ 0.55 V 0.30 V 0.6 V 1.3 V – 0.85 V ...

Page 5

... Measured on the Rising Edge @ V Measured on the Rising Edge @ V 0. ƒ ≤ 150MHz, Ref = CLK/nCLK /2 of the output. DDO /2 of the output. DDO DDO 5 Minimum Typical Maximum Units 2 2 0.14 /2 DDO /2 DDO 0 /2. ICS83948AYI-147 REV. D APRIL 8, 2009 350 MHz 100 1 /2. DDO ...

Page 6

... V Measured on the Rising Edge @ V 0.6V to 1.8V ƒ ≤ 150MHz, Ref = CLK/nCLK /2 of the output. DDO /2 of the output. DDO DDO 6 Minimum Typical Maximum Units 1.5 1.7 0.14 /2 DDO /2 DDO 0 /2. ICS83948AYI-147 REV. D APRIL 8, 2009 350 MHz 4 160 1 /2. ...

Page 7

... Measured on the Rising Edge @ V 0. ƒ ≤ 200MHz, Ref = CLK/nCLK /2 of the output. DDO /2 of the output. DDO DDO 7 = -40°C to 85°C A Minimum Typical Maximum Units 2 2 0.14 /2 DDO /2 DDO 0 /2. ICS83948AYI-147 REV. D APRIL 8, 2009 350 MHz 100 1 /2. DDO ...

Page 8

... Offset From Carrier Frequency (Hz) device. This is illustrated above. The device meets the noise floor of what is shown, but can actually be lower. The phase noise is dependent on the input source and measurement equipment. 8 Additive Phase Jitter, RMS 0.14ps (typical) ICS83948AYI-147 REV. D APRIL 8, 2009 ...

Page 9

... IDT™ / ICS™ LVCMOS/LVTTL CLOCK GENERATOR 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 V DD SCOPE nCLK Qx CLK GND Differential Input Level Qx Qy Output Skew 9 SCOPE Cross Points PP V DDO 2 V DDO 2 tsk(o) ICS83948AYI-147 REV. D APRIL 8, 2009 CMR ...

Page 10

... DD 2 CLK nCLK CLK V DDO 2 Q0:Q11 ➤ ➤ Propagation Delay IDT™ / ICS™ LVCMOS/LVTTL CLOCK GENERATOR 2V 0.8V Q0:Q11 t F 2.5V Output Rise/Fall Time Q0:Q11 Output Duty Cycle/Pulse Width/Period 10 1.8V 1.8V 0. DDO PERIOD 100% odc = t PERIOD ICS83948AYI-147 REV. D APRIL 8, 2009 0.6V ...

Page 11

... A 1kΩ resistor can be used. IDT™ / ICS™ LVCMOS/LVTTL CLOCK GENERATOR / Single Ended Clock Input Figure 1. Single-Ended Signal Driving Differential Input Outputs: LVCMOS Outputs All unused LVCMOS output can be left floating. There should be no trace attached CLK V_REF nCLK C1 0. ICS83948AYI-147 REV. D APRIL 8, 2009 ...

Page 12

... Zo = 50Ω R1 100 Zo = 50Ω LVDS Driven by a 3.3V LVDS Driver 2. 120 120 Zo = 60Ω 60Ω SSTL R1 R2 120 120 Driven by a 2.5V SSTL Driver ICS83948AYI-147 REV. D APRIL 8, 2009 3.3V CLK nCLK HiPerClockS Input 3.3V CLK nCLK Receiver 3.3V CLK nCLK HiPerClockS ...

Page 13

... Meters per Second Multi-Layer PCB, JEDEC Standard Test Boards Transistor Count The transistor count for ICS83948I-147 is: 1040 Pin compatible with the MPC9448 IDT™ / ICS™ LVCMOS/LVTTL CLOCK GENERATOR θ vs. Air Flow 73.6°C/W 63.9°C/W 13 2.5 60.3°C/W ICS83948AYI-147 REV. D APRIL 8, 2009 ...

Page 14

... D & E 9.00 Basic D1 & E1 7.00 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 IDT™ / ICS™ LVCMOS/LVTTL CLOCK GENERATOR Maximum 1.60 0.15 1.45 0.45 0.20 0.75 7° 0.10 14 ICS83948AYI-147 REV. D APRIL 8, 2009 ...

Page 15

... Shipping Packaging 32 Lead LQFP 32 Lead LQFP 1000 Tape & Reel “Lead-Free” 32 Lead LQFP “Lead-Free” 32 Lead LQFP 1000 Tape & Reel 15 Temperature Tray -40°C to 85°C -40°C to 85°C Tray -40°C to 85°C -40°C to 85°C ICS83948AYI-147 REV. D APRIL 8, 2009 ...

Page 16

... Added Mix DC Characteristics Power Supply Table. Added Mix AC Characteristics Table. Parameter Measurement Information Section - added 3.3V/2.5V LVCMOS Output Load AC Test Circuit diagram. Ordering Information Table - deleted ICS prefix from Part/Order Number column. 16 from 4pF max. to 4pF typical; and IN . ICS83948AYI-147 REV. D APRIL 8, 2009 Date 11/21/05 1/15/08 4/1/09 ...

Page 17

ICS83948I-147 LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER Contact Information: www.IDT.com Sales 800-345-7015 (inside USA) +408-284-8200 (outside USA) Fax: 408-284-2775 www.IDT.com/go/contactIDT © 2009 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT ...

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