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SY89875UMI-TR

Description
IC CLK BUFFER 1:2 2GHZ 16MLF
Categorysemiconductor    Analog mixed-signal IC   
File Size237KB,10 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Download Datasheet Parametric Compare View All

SY89875UMI-TR Overview

IC CLK BUFFER 1:2 2GHZ 16MLF

SY89875UMI-TR Parametric

Parameter NameAttribute value
typefanout buffer (allocation), divider
Number of circuits1
Ratio - Input:Output1:2
Differential - Input:OutputYes Yes
enterCML,HSTL,LVDS,LVPECL
outputLVDS
Frequency - maximum2GHz
Voltage - Power2.375 V ~ 2.625 V
Operating temperature-40°C ~ 85°C
Installation typesurface mount
Package/casing16-VFQFN Exposed Pad, 16-MLF®
Supplier device packaging16-MLF®(3x3)
Micrel, Inc.
2.5V, 2.0GHz ANY DIFF. IN-TO-LVDS
SY89875U
Precision Edge
®
PROGRAMMABLE CLOCK DIVIDER AND 1:2
SY89875U
FANOUT BUFFER W/ INTERNAL TERMINATION
Precision Edge
®
FEATURES
Integrated programmable clock divider and 1:2
fanout buffer
Guaranteed AC performance over temperature and
voltage:
• > 2.0GHz f
MAX
• < 200ps t
r
/t
f
• < 15ps within device skew
Low jitter design:
• < 10ps
PP
total jitter
• < 1ps
RMS
cycle-to-cycle jitter
Unique input termination and V
T
Pin for DC-coupled
and AC-coupled Inputs; CML, PECL, LVDS and
HSTL
LVDS compatible outputs
TTL/CMOS inputs for select and reset
Parallel programming capability
Programmable divider ratios of 1, 2, 4, 8 and 16
Low voltage operation 2.5V
Output disable function
–40°C to 85°C temperature range
Available in 16-pin (3mm x 3mm) MLF
®
package
DESCRIPTION
This low-skew, low-jitter device is capable of accepting a
high-speed (e.g., 622MHz or higher) CML, LVPECL, LVDS
or HSTL clock input signal and dividing down the frequency
using a programmable divider to create a lower speed
version of the input clock. Available divider ratios are 2, 4, 8
and 16, or straight pass-through.
The differential input buffer has a unique internal
termination design that allows access to the termination
network through a V
T
pin. This feature allows the device to
easily interface to different logic standards. A V
REF-AC
reference is included for AC-coupled applications.
The /RESET input asynchronously resets the divider. In
the pass-through function (divide by 1) the /RESET
synchronously enables or disables the outputs on the next
falling edge of IN (rising edge of /IN).
TYPICAL PERFORMANCE
OC-12 to OC-3
Translator/Divider
APPLICATIONS
SONET/SDH line cards
Transponders
High-end, multiprocessor servers
FUNCTIONAL BLOCK DIAGRAM
S2
CML/LVPECL/LVDS
622MHz
Clock In
Divide-by-4
LVDS
155.5MHz
Clock Out
/RESET
Enable
FF
622MHz In
IN
Enable
MUX
Q0
/Q0
MUX
IN
50
V
T
50
/IN
Q1
/IN
Q0
9
9
Divided
by
2, 4, 8
or 16
/Q1
155.5MHz Out
S1
Decoder
S0
/Q0
V
REF_AC
United States Patent No. RE44,134
Precision Edge is a registered trademark of Micrel, Inc.
MicroLeadFrame
and MLF are registered trademarks of Amkor Technology, Inc.
M9999-082407
hbwhelp@micrel.com or (408) 955-1690
Rev.: D
Amendment: /0
1
Issue Date: August 2007

SY89875UMI-TR Related Products

SY89875UMI-TR SY89875UMITR SY89875U SY89875UMI SY89875U_07 SY89875UMGTR
Description IC CLK BUFFER 1:2 2GHZ 16MLF 89875 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC16 89875 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC16 89875 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC16 89875 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC16 89875 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC16
series - 89875 89875 89875 89875 89875
Number of functions - 1 1 1 1 1
Number of terminals - 16 16 16 16 16
Maximum operating temperature - 85 °C 85 Cel 85 °C 85 Cel 85 °C
Minimum operating temperature - -40 °C -40 Cel -40 °C -40 Cel -40 °C
surface mount - YES Yes YES Yes YES
Temperature level - INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal form - NO LEAD NO LEAD NO LEAD NO LEAD NO LEAD
Terminal location - QUAD QUAD QUAD QUAD QUAD
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