SY89826LHI Micrel Inc, SY89826LHI Datasheet

SY89826LHI

Manufacturer Part Number

SY89826LHI

Description

IC BUFFER LVDS 3.3V 1:22 64-TQFP

Manufacturer

Micrel Inc

Series

Precision Edge®r

Type

Fanout Buffer (Distribution), Multiplexer , Translatorr

Datasheet

1.SY89826LHY.pdf (10 pages)

Specifications of SY89826LHI

Number Of Circuits

Ratio - Input:output

2:22

Differential - Input:output

Yes/Yes

Input

LVDS, LVPECL

Output

LVDS

Frequency - Max

1GHz

Voltage - Supply

3 V ~ 3.6 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

1GHz

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

BOSTOCK HK LIMITED

Part Number:

SY89826LHI

Manufacturer:

Micrel Inc

Quantity:

10 000

Current page: 1 of 10
Download datasheet (121Kb)

Micrel, Inc.

/LVPECL_CLK

Precision Edge is a registered trademark of Micrel, Inc.

M9999-011907

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

LVPECL_CLK

FEATURES

APPLICATIONS

FUNCTIONAL BLOCK DIAGRAM

/LVDS_CLK

LVDS_CLK

High-performance, 1GHz LVDS fanout buffer/

translator

22 differential LVDS output pairs

Guaranteed AC parameters over temperature and

voltage:

• > 1GHz f

• < 50ps within device skew

• < 400ps t

Low jitter performance

• < 1ps (rms) cycle-to-cycle jitter

• < 1ps (pk-pk) total jitter

2:1 mux input accepts LVDS and LVPECL

3.3V supply voltage

LVDS input includes internal 100 termination

Output enable function

Available in a 64-Pin EPAD-TQFP

Enterprise networking

High-end servers

Communications

100 internal input

termination

MAX

/ t

time

CLK_SEL

LEN

3.3V 1GHz PRECISION 1:22 LVDS

FANOUT BUFFER/TRANSLATOR

WITH 2:1 INPUT MUX

22 LVDS compatible

outputs

/Q0 - /Q21

Q0 - Q21

differential LVDS (Low Voltage Differential Swing) output

pairs. The part is designed for use in low voltage 3.3V

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 LVDS or LVPECL (Low

Voltage Positive Emitter Coupled Logic) by the CLK_SEL

pin. The OE (Output Enable) is synchronous so that the

outputs will only be enabled/disabled when they are already

in the LOW state. This avoids any chance of generating a

runt clock pulse when the device is enabled/disabled as

can happen with an asynchronous control.

than 50ps—performance previously unachievable in a

standard product having such a high number of outputs.

The SY89826L is available in a single space saving package,

enabling a lower overall cost solution.

NOTE:

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

DESCRIPTION

TRUTH TABLE

The SY89826L is a precision fanout buffer with 22

The SY89826L features a low pin-to-pin skew of less

LVDS_CLK and LVPECL_CLK signal.

(1)

CLK_SEL

LVPECL_CLK

LVDS_CLK

Q0 – Q21

LOW

Precision Edge

Rev.: D

Issue Date: January 2007

Precision Edge

/LVPECL_CLK

SY89826L

/LVDS_CLK

/Q0 – /Q21

HIGH

Amendment: /0

SY89826L

Related parts for SY89826LHI

SY89826LHI Summary of contents

Page 1

Micrel, Inc. FEATURES High-performance, 1GHz LVDS fanout buffer/ translator 22 differential LVDS output pairs Guaranteed AC parameters over temperature and voltage: • > 1GHz f MAX • < 50ps within device skew • < 400ps time r ...

Page 2

... Output buffer ground not connected to GNDI internally. Connect to GNDI on PCB. No connect pins to be left open. 2 Precision Edge (1) Operating Package Range Marking Industrial SY89826LHI Industrial SY89826LHI Industrial SY89826LHY with Pb-Free bar-line indicator Matte-Sn Industrial SY89826LHY with Pb-Free bar-line indicator Matte- electricals only. A ® SY89826L Lead Finish ...

Page 3

Micrel, Inc. Absolute Maximum Ratings Power Supply Voltage ( .............. –0.5 to +4.0V CCI CCO Input Voltage (V ) ........................................... –0 Output Current (I ) ............................................... 10mA OUT Lead Temperature (T , Soldering, 20sec.) ...

Page 4

Micrel, Inc. DC ELECTRICAL CHARACTERISTICS LVPECL Input 3.3V 10 Symbol Parameter V Input HIGH Voltage (Single-Ended Input LOW Voltage IL V Minimum Input Swing (LVPECL_CLK Common Mode Range (LVPECL_CLK) Note 7 CMR ...

Page 5

Micrel, Inc. AC ELECTRICAL CHARACTERISTICS V = 3.3V 10 – +85 C, unless noted Symbol Parameter f Maximum Toggle Frequency MAX t Differential Propagation Delay, PHL t Note 3 PLH t Clock Input Switchover ...

Page 6

Micrel, Inc. TYPICAL OPERATING CHARACTERISTICS V = 3.3V GND unless otherwise stated Output Amplitude vs. Frequency 500 450 400 350 300 250 200 150 100 200 400 600 ...

Page 7

Micrel, Inc. FUNCTIONAL CHARACTERISTICS 155MHz Output 3. TIME (500ps/div.) M9999-011907 hbwhelp@micrel.com or (408) 955-1690 1GHz Output 3. ...

Page 8

Micrel, Inc. LVPECL/LVDS INPUTS V LVPECL_CLK 75k /LVPECL_CLK GND Figure 1. Simplified LVPECL Input Stage LVDS OUTPUTS LVDS specifies a small swing of 350mV typical nominal 1.25V common mode above ground. The common mode voltage has tight limits ...

Page 9

Micrel, Inc. DETAILED DESCRIPTION The SY89826L is a precision 1:22 fanout buffer. It accepts either an LVPECL or LVDS input, selectable by an input mux, and outputs 22 LVDS output pairs. The device features a synchronous output enable. The SY89826L ...

Page 10

Micrel, Inc. 64-PIN EPAD-TQFP (DIE UP) (H64-1) +0.03 –0.03 +0.012 –0.012 Heat Dissipation MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL The information furnished by Micrel in this data sheet is believed to ...

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