ICS85214AGT IDT, Integrated Device Technology Inc, ICS85214AGT Datasheet

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ICS85214AGT

Manufacturer Part Number
ICS85214AGT
Description
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock Driverr
Datasheet

Specifications of ICS85214AGT

Number Of Clock Inputs
2
Output Frequency
700MHz
Output Logic Level
HSTL
Operating Supply Voltage (min)
3.135V
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (max)
3.465V
Package Type
TSSOP
Operating Temp Range
0C to 85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
20
Lead Free Status / RoHS Status
Not Compliant
LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-
HSTL FANOUT BUFFER
General Description
input levels. The single ended CLK1 input accepts LVCMOS or
LVTTL input levels. Guaranteed output and part-to-part skew
characteristics make the ICS85214 ideal for those clock distri-
bution applications demanding well defined performance and
repeatability.
Block Diagram
IDT™ / ICS™ HSTL FANOUT BUFFER
CLK_SEL
HiPerClockS™
CLK_EN
ICS
CLK0
CLK0
CLK1
Pulldown
Pullup
Pulldown
Pulldown
Pulldown
The ICS85214 is a low skew, high performance
1-to-5 Differential-to-HSTL Fanout Buffer and a
member of the HiPerClockS™ family of High
Performance Clock Solutions from IDT. The CLK0,
CLK0 pair can accept most standard differential
0
1
0
1
D
LE
Q
Q0
Q0
Q1
Q1
Q2
Q2
Q3
Q3
Q4
Q4
1
Features
Five differential HSTL compatible outputs
Selectable differential CLK0, CLK0 or LVCMOS/LVTTL clock
inputs
CLK0, CLK0 pair can accept the following differential input
levels: LVPECL, LVDS, HSTL, HCSL, SSTL
CLK1 can accept the following input levels: LVCMOS or LVTTL
Output frequency up to: 700MHz
Translates any single-ended input signal to HSTL levels with
resistor bias on CLK0 input
Output skew: 30ps (maximum)
Part-to-part skew: 250ps (maximum)
Propagation delay: 1.8ns (maximum)
3.3V core, 1.8V output operating supply
0°C to 85°C ambient operating temperature
Industrial temperature information available upon request
Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
Pin Assignment
6.5mm x 4.4mm x 0.925mm
20-Lead TSSOP
Q4
Q4
package body
Q0
Q0
Q1
Q1
Q2
Q2
Q3
Q3
G Package
ICS85214
Top View
ICS85214AG REV. B FEBRUARY 25, 2008
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CLK_EN
V
nc
CLK1
CLK0
CLK0
CLK_SEL
GND
DDO
DD
ICS85214

Related parts for ICS85214AGT

ICS85214AGT Summary of contents

Page 1

LOW SKEW, 1-TO-5, DIFFERENTIAL-TO- HSTL FANOUT BUFFER General Description The ICS85214 is a low skew, high performance ICS 1-to-5 Differential-to-HSTL Fanout Buffer and a member of the HiPerClockS™ family of High HiPerClockS™ Performance Clock Solutions from IDT. The CLK0, CLK0 ...

Page 2

ICS85214 LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER Table 1. Pin Descriptions Number Name 1, 2 Q0, Q0 Output 3, 4 Q1, Q1 Output 5, 6 Q2, Q2 Output 7, 8 Q3, Q3 Output 9, 10 Q4, Q4 Output 11 GND ...

Page 3

ICS85214 LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER Function Tables Table 3A. Control Input Function Table Inputs CLK_EN 0 1 Disabled; LOW After CLK_EN switches, the clock outputs are disabled or enabled following a rising and falling input clock edge as ...

Page 4

ICS85214 LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER Absolute Maximum Ratings NOTE: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications only. Functional operation of product at these conditions or ...

Page 5

ICS85214 LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER Table 4D. HSTL DC Characteristics, V Symbol Parameter Output High Current NOTE 1 Output Low Current NOTE 1 Output V OX Crossover Voltage Peak-to-Peak V SWING Output Voltage Swing ...

Page 6

ICS85214 LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER Parameter Measurement Information 3.3V±5% 1.8V±0. DDO HSTL GND GND = 0V 3.3V/1.8V Output Load AC Test Circuit tsk(o) Output Skew CLK1 CLK0 CLK0 ...

Page 7

ICS85214 LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER Parameter Measurement Information, continued 80% Clock 20% Outputs t R Output Rise/Fall Time Application Information Wiring the Differential Input to Accept Single Ended Levels Figure 2 shows how the differential input can be ...

Page 8

ICS85214 LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER Differential Clock Input Interface The CLK /CLK accepts LVDS, LVPECL, LVHSTL, SSTL, HCSL and other differential signals. Both V SWING and V input requirements. Figures show interface CMR examples for ...

Page 9

ICS85214 LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER Recommendations for Unused Input and Output Pins Inputs: LVCMOS Control Pins All control pins have internal pull-ups or pull-downs; additional resistance is not required but can be added for additional protection. A 1kΩ ...

Page 10

ICS85214 LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER Power Considerations This section provides information on power dissipation and junction temperature for the ICS85214. Equations and example calculations are also provided. 1. Power Dissipation. The total power dissipation for the ICS85214 is ...

Page 11

ICS85214 LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER 3. Calculations and Equations. The purpose of this section is to derive the power dissipated into the load. HSTL output driver circuit and termination are shown in Figure Figure ...

Page 12

ICS85214 LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER Reliability Information Table 7. θ vs. Air Flow Table for a 20 Lead TSSOP JA Linear Feet per Minute Single-Layer PCB, JEDEC Standard Test Boards Multi-Layer PCB, JEDEC Standard Test Boards Transistor Count ...

Page 13

ICS85214 LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER Ordering Information Table 9. Ordering Information Part/Order Number Marking 85214AG ICS85214AG 85214AGT ICS85214AG 85214AGLF ICS85214AGLF 85214AGLFT ICS85214AGLF NOTE: Parts that are ordered with an "LF" suffix to the part number are the Pb-Free ...

Page 14

ICS85214 LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER Revision History Sheet Rev Table Page Description of Change Changed LVHSTL to HSTL throughout the datasheet Pin Characteristics Table - changed C 1 Features Section - added Lead-Free Bullet. 9 ...

Page 15

ICS85214 LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-HSTL 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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