ICS8535AGI-21LFT IDT, Integrated Device Technology Inc, ICS8535AGI-21LFT Datasheet

IC CLOCK GEN 1-2 LVPECL 14-TSSOP

ICS8535AGI-21LFT

Manufacturer Part Number
ICS8535AGI-21LFT
Description
IC CLOCK GEN 1-2 LVPECL 14-TSSOP
Manufacturer
IDT, Integrated Device Technology Inc
Type
Fanout Buffer (Distribution), Multiplexerr
Series
HiPerClockS™r
Datasheet

Specifications of ICS8535AGI-21LFT

Number Of Circuits
1
Ratio - Input:output
2:2
Differential - Input:output
No/Yes
Input
LVCMOS, LVTTL
Output
LVPECL
Frequency - Max
266MHz
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
14-TSSOP
Frequency-max
266MHz
Number Of Clock Inputs
2
Mode Of Operation
Single-Ended
Output Frequency
266MHz
Output Logic Level
LVPECL
Operating Supply Voltage (min)
3.135V
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (max)
3.465V
Package Type
TSSOP
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Signal Type
LVCMOS/LVTTL
Mounting
Surface Mount
Pin Count
14
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
8535AGI-21LFT
LOW SKEW, 1-TO-2 LVCMOS/LVTTL-TO-
3.3V LVPECL CLOCK GENERATOR
General Description
single-ended clock input accepts LVCMOS or LVTTL input levels
and translate them to 3.3V LVPECL levels. The clock enable is
internally synchronized to eliminate runt clock pulses on the output
during asynchronous assertion/deassertion of the clock enable
pin.
Guaranteed output and part-to-part skew characteristics make the
ICS8535I-21 ideal for those applications demanding well defined
performance and repeatability.
Block Diagram
IDT™ / ICS™ 3.3V LVPECL FANOUT BUFFER
CLK_SEL
HiPerClockS™
CLK_EN
ICS
CLK0
CLK1
Pullup
Pulludown
Pulludown
Pulludown
The ICS8535I-21 is a low skew, high performance
1-to-2 LVCMOS/LVTTL-to-3.3V LVPECL fanout
buffer and a member of the HiPerClockS™ family of
High Performance Clock Solutions from IDT. The
ICS8535I-21 has two single-ended clock inputs. The
0
1
D
LE
Q
Q0
nQ0
Q1
nQ1
1
Features
4.40mm x 5.0mm x 0.925mm package body
Pin Assignment
Two differential 3.3V LVPECL outputs
Selectable CLK0 or CLK1 inputs for redundant and multiple
frequency fanout applications
CLK0 or CLK1 can accept the following input levels:
LVCMOS or LVTTL
Maximum output frequency: 266MHz
Translates LVCMOS and LVTTL levels to 3.3V LVPECL levels
Output skew: 20ps (maximum)
Part-to-part skew: 300ps (maximum)
Propagation delay: 1.6ns (maximum)
Additive phase jitter, RMS: 0.03ps (typical)
3.3V operating supply
-40°C to 85°C ambient operating temperature
Available in lead-free (RoHS 6) package
CLK_SEL
CLK_EN
CLK0
CLK1
V
V
14 Lead TSSOP
V
EE
CC
EE
ICS8535I-21
G Package
Top View
1
2
3
4
5
6
7
ICS8535AGI-21 REV. A NOVEMBER 24, 2008
14
13
12
11
10
9
8
V
Q0
nQ0
nc
Q1
nQ1
V
CC
CC
ICS8535I-21

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ICS8535AGI-21LFT Summary of contents

Page 1

... Available in lead-free (RoHS 6) package Pin Assignment V EE CLK_EN CLK_SEL CLK0 nQ0 CLK1 nQ1 14 Lead TSSOP 4.40mm x 5.0mm x 0.925mm package body 1 ICS8535I- nQ0 nQ1 ICS8535I-21 G Package Top View ICS8535AGI-21 REV. A NOVEMBER 24, 2008 ...

Page 2

... When LOW, selects CLK0 input. LVCMOS/LVTTL interface levels. Pulldown Single-ended clock inputs. LVCMOS/LVTTL interface levels. Power supply pins. Differential output pair. LVPECL interface levels. No connect. Differential output pair. LVPECL interface levels. Test Conditions 2 Minimum Typical Maximum ICS8535AGI-21 REV. A NOVEMBER 24, 2008 Units pF Ω k Ω k ...

Page 3

... LOW 1 HIGH IDT™ / ICS™ 3.3V LVPECL FANOUT BUFFER Selected Source Q0, Q1 CLK0 Disabled; Low CLK1 Disabled; Low CLK0 Enabled CLK1 Enabled nQ0, nQ1 HIGH LOW 3 Outputs nQ0, nQ1 Disabled; High Disabled; High Enabled Enabled Enabled ICS8535AGI-21 REV. A NOVEMBER 24, 2008 ...

Page 4

... Test Conditions Minimum 3.135 = 3.3V ± 5 -40°C to 85° Test Conditions Minimum 3.465 3.465 3.465V 3.465V Typical Maximum 3.3 3.465 50 Typical Maximum 0.3 CC -0.3 1.3 -0.3 0.8 150 5 -5 -150 ICS8535AGI-21 REV. A NOVEMBER 24, 2008 Units V mA Units µA µA µA µA ...

Page 5

... Integration Range: 12kHz – 20MHz 20% to 80% @ 50MHz ƒ ≤ 200MHz 5 Minimum Typical Maximum V – 1.4 V – 0 – 2.0 V – 1 0.6 1.0 Minimum Typical Maximum 266 1.0 1.6 0.03 20 300 300 600 45 55 ICS8535AGI-21 REV. A NOVEMBER 24, 2008 Units µA µA V Units MHz ...

Page 6

... Offset 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 10M ICS8535AGI-21 REV. A NOVEMBER 24, 2008 100M ...

Page 7

... IDT™ / ICS™ 3.3V LVPECL FANOUT BUFFER Par t 1 nQx SCOPE Qx Qx Par t 2 nQy Qy nQx Part-to-Part Skew CLK0, CLK1 nQ0, nQ1 Q0, Q1 Propagation Delay nQ0, nQ1 Output Duty Cycle/Pulse Width/Period 7 tsk(pp PERIOD t PW odc = x 100% t PERIOD ICS8535AGI-21 REV. A NOVEMBER 24, 2008 ...

Page 8

... FIN 50Ω RTT Figure 2B. 3.3V LVPECL Output Termination 8 3.3V 125Ω 125Ω 50Ω o FOUT Z = 50Ω o 84Ω 84Ω ICS8535AGI-21 REV. A NOVEMBER 24, 2008 FIN ...

Page 9

... C2 C3 .1uF .1uF 10uf Figure 3. ICS8535I-21 LVPECL Buffer Schematic Example IDT™ / ICS™ 3.3V LVPECL FANOUT BUFFER pin. For ICS8535I-21, the unused clock outputs can be left floating. (U1-14) C4 .1uF Vcco = 3. 133 133 82.5 82.5 Optional Termination ICS8535AGI-21 REV. A NOVEMBER 24, 2008 ...

Page 10

... Multi-Layer PCB, JEDEC Standard Test Boards IDT™ / ICS™ 3.3V LVPECL FANOUT BUFFER = 3. 3.465V, which gives worst case results 3.465V * 50mA = 173.25mW EE_MAX * Pd_total + θ vs. Air Flow JA 0 103.8°C/W 10 must be used. Assuming no air flow JA 1 2.5 99.6°C/W 97.3°C/W ICS8535AGI-21 REV. A NOVEMBER 24, 2008 ...

Page 11

... IDT™ / ICS™ 3.3V LVPECL FANOUT BUFFER V OUT RL 50Ω – 0.9V CC_MAX = V – 1.7V CC_MAX ] * (V – [(2V – CC_MAX OH_MAX ] * (V – [(2V – CC_MAX OL_MAX CC_MAX 11 – V ))/ – V CC_MAX OH_MAX L CC_MAX – V ))/ – V OL_MAX L CC_MAX ICS8535AGI-21 REV. A NOVEMBER 24, 2008 ) = OH_MAX ) = OL_MAX ...

Page 12

... All Dimensions in Millimeters Symbol Minimum 0.5 A2 0.80 b 0.19 c 0. 0.45 α 0° aaa Reference Document: JEDEC Publication 95, MO-153 12 ICS8535AGI-21 REV. A NOVEMBER 24, 2008 2.5 97.3°C/W Maximum 14 1.20 0.15 1.05 0.30 0.20 5.10 6.40 Basic 4.50 0.65 Basic 0.75 8° 0.10 ...

Page 13

... IDT™ / ICS™ 3.3V LVPECL FANOUT BUFFER Package Shipping Packaging “Lead-Free” 14 Lead TSSOP “Lead-Free” 14Lead TSSOP 2500 Tape & Reel 13 ICS8535AGI-21 REV. A NOVEMBER 24, 2008 Temperature Tube -40°C to 85°C -40°C to 85°C ...

Page 14

ICS8535I-21 LOW SKEW, 1-TO-2 LVCMOS/LVTTL-TO-3.3V LVPECL 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 © 2008 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the ...

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