SY89823LHY Micrel Inc, SY89823LHY Datasheet

500MHz 1:22 Diff. HSTL Fanout Buffer (I Temp, )

SY89823LHY

Manufacturer Part Number

SY89823LHY

Description

500MHz 1:22 Diff. HSTL Fanout Buffer (I Temp, )

Manufacturer

Micrel Inc

Series

Precision Edge®r

Type

Fanout Buffer (Distribution), Multiplexer , Translatorr

Datasheet

1.SY89823LHY.pdf (8 pages)

Specifications of SY89823LHY

Lead Free Status

Lead free

Number Of Circuits

Ratio - Input:output

2:22

Differential - Input:output

Yes/Yes

Input

HSTL, LVPECL

Output

HSTL

Frequency - Max

500MHz

Voltage - Supply

3.15 V ~ 3.45 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

64-TQFP Exposed Pad, 64-eTQFP, 64-HTQFP, 64-VQFP

Frequency-max

500MHz

Lead Free Status / RoHS Status

Other names

576-2090
SY89823LHY

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

SY89823LHY

Manufacturer:

MICREL

Quantity:

465

Company:

BOSTOCK HK LIMITED

Part Number:

SY89823LHY

Manufacturer:

Micrel Inc

Quantity:

10 000

Company:

BOSTOCK HK LIMITED

Part Number:

SY89823LHY TR

Manufacturer:

Micrel Inc

Quantity:

10 000

Current page: 1 of 8
Download datasheet (120Kb)

Micrel, Inc.

Precision Edge is a registered trademark of Micrel, Inc.

M9999-091908

hbwhelp@micrel.com or (408) 955-1690

/LVPECL_CLK

LVPECL_CLK

LOGIC SYMBOL

/HSTL_CLK

FEATURES

22 differential HSTL (low-voltage swing) output pairs

HSTL outputs drive 50 to ground with no offset

voltage

3.3V core supply, 1.8V output supply for reduced

power

LVPECL and HSTL inputs

Low part-to-part skew (200ps max.)

Low pin-to-pin skew (50ps max.)

Triple-buffered output enable (OE)

–40 C to +85 C temperature range

Available in a 64-pin EPAD-TQFP

APPLICATIONS

High-performance PCs

Workstations

Parallel processor-based systems

Other high-performance computing

Communications

HSTL_CLK

CLK_SEL

ENABLE

LOGIC

3.3V, 500MHz 1:22

DIFFERENTIAL HSTL (1.5V)

FANOUT BUFFER/TRANSLATOR

Q0 - Q21

/Q0 - /Q21

differential High-Speed Transceiver Logic (HSTL), 1.5V compatible

output pairs. The device is designed for use in low-voltage (3.3V/

1.8V) applications that require a large number of outputs to drive

precisely aligned, ultra-low skew signals to their destination. The

input is multiplexed from either HSTL or Low-Voltage Positive-

Emitter-Coupled Logic (LVPECL) by the CLK_SEL pin.

that the outputs will only be enabled/disabled when they are already

in the LOW state. This avoids any potential of generating a runt clock

pulse when the device is enabled/disabled, as can occur with an

asynchronous control. The triple-buffering feature provides a three-

clock delay from the time the OE input is asserted/de-asserted to

when the clock appears at the outputs.

part-to-part skew (200ps max.), performance previously unachievable

in a standard product having such a high number of outputs. The

SY89823L is available in a single, space-saving package, enabling

a lower overall cost solution.

www.micrel.com.

Note:

1. The output enable (OE) signal is synchronized with the low level of the

TRUTH TABLE

TYPICAL PERFORMANCE

DESCRIPTION

The SY89823L is a high-performance bus clock driver with 22

The Output Enable (OE) is synchronous and triple-buffered so

The SY89823L features low pin-to-pin skew (50ps max.) and low

All support documentation can be found on Micrel’s web site at:

HSTL_CLK and LVPECL_CLK signal.

(1)

CLK_SEL

900

800

700

600

500

400

300

200

100

0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6

OUTPUT FREQUENCY (GHz)

Output Amplitude

vs. Frequency

LVPECL_CLK

HSTL_CLK

LOW

-Q

Precision Edge

Rev.: D

Issue Date: September 2008

Precision Edge

SY89823L

/LVPECL_CLK

/HSTL_CLK

HIGH

Amendment: /0

SY89823L

-/Q

Related parts for SY89823LHY

SY89823LHY Summary of contents

Page 1

Micrel, Inc. FEATURES 22 differential HSTL (low-voltage swing) output pairs HSTL outputs drive 50 to ground with no offset voltage 3.3V core supply, 1.8V output supply for reduced power LVPECL and HSTL inputs Low part-to-part skew (200ps max.) Low pin-to-pin ...

Page 2

... Industrial SY89823LHI with Pb-Free bar-line indicator Industrial SY89823LHI with Pb-Free bar-line indicator Industrial SY89823LHY with Pb-Free bar-line indicator Matte-Sn Industrial SY89823LHY with Pb-Free bar-line indicator Matte- electricals only. A and t requirements (refer to “AC Electrical Characteristics” H pins as possible. CCI pin as possible. All V ...

Page 3

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) ..................................... –0. Pin Potential to Ground Pin CCO ........................................................... CCI, DC Output Current, Output HIGH (I Lead Temperature (soldering, 20 sec.) ..................... 260 C ...

Page 4

Micrel, Inc. DC ELECTRICAL CHARACTERISTICS LVCMOS/LVTTL V = 3.3V 5%; V CCI Symbol Parameter V Input HIGH Voltage IH V Input LOW Voltage IL I Input HIGH Current IH I Input LOW Current IL AC ELECTRICAL CHARACTERISTICS V = 3.3V ...

Page 5

Micrel, Inc. TIMING DIAGRAMS Assert Latency CLK Q21 Notes: 1. The OE input signal must be a minimum of 3 clock periods with width. 2. The internal enable is asserted and de-asserted on the falling ...

Page 6

Micrel, Inc. TYPICAL OPERATING CHARACTERISTICS V = 3.6V 2.0V unless otherwise stated. CCI CCO A 200MHz Output /Q Q TIME (700ps/div) M9999-091908 hbwhelp@micrel.com or (408) 955-1690 /Q Q 500MHz Output /Q Q TIME (500ps/div) ...

Page 7

Micrel, Inc. LVPECL/HSTL INPUTS V LVPECL_CLK 75k /LVPECL_CLK GND Figure 1. Simplified LVPECL Input Stage HSTL OUTPUTS Q OUT /Q OUT Figure 3. Output Driver Signal Levels (Single-Ended) RELATED MICREL PRODUCTS AND SUPPORT DOCUMENTATION Part Number Function SY89809L 3.3V 1:9 ...

Page 8

Micrel, Inc. 64-PIN EPAD-TQFP (DIE UP) (H64-1) +0.03 –0.03 +0.012 –0.012 Package Notes: 1. Package meets Level 2 qualification. 2. All parts are dry-packaged before shipment. 3. Exposed pads must be soldered to a ground for proper thermal management. MICREL, ...

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