SY100E222L_06 Datasheet, PDF (1/7 Pages) Micrel Semiconductor – 3.3V, 1.5GHz ÷1/÷2 DIFFERENTIAL LVECL/LVPECL PROGRAMMABLE CLOCK GENERATOR AND 1:15 FANOUT BUFFER

Micrel, Inc.
3.3V, 1.5GHz ÷1/÷2 DIFFERENTIAL
LVECL/LVPECL PROGRAMMABLE CLOCK
Precision Edge^®
Precision^SYE¹d⁰⁰g^Ee^2®22L
GENERATOR AND 1:15 FANOUT BUFFER
SY100E222L
FEATURES
s Four programmable output banks and 15 total
LVPECL-compatible differential outputs
s Pin-compatible, plug-in replacement to
MC100LVE222FA
s f_MAX clock = 1.5GHz
s 50ps output-to-output skew
s Four output banks with independent ÷1, ÷2
frequency control
s 100k compatible I/O
s Power supply 3.3V ±10%
s –40°C to +85°C temperature range
s Available in 52-pin LQFP package
APPLICATIONS
s SONET/SDH channel applications
s Fibre Channel multi-channel applications
s Gigabit Ethernet multi-channel applications
FUNCTIONAL BLOCK DIAGRAM
CLK_SEL
CLK0
/CLK0
V_BB
CLK1
/CLK1
MR
FSELA
2:1
MUX
÷1
CLK
÷2
FSELB
FSELC
FSELD
2:1
MUX
2:1
MUX
2:1
MUX
2:1
MUX
1:2 FOB
QA0
/QA0
QA1
/QA1
1:3 FOB
QB0
/QB0
QB1
/QB1
QB2
/QB2
1:4 FOB
QC0
/QC0
QC1
/QC1
QC2
/QC2
QC3
/QC3
1:6 FOB
QD0
/QD0
QD1
/QD1
QD2
/QD2
QD3
/QD3
QD4
/QD4
QD5
/QD5
Precision Edge is a registered trademark of Micrel, Inc.
M9999-032206
[e-mail] or [phone]
DESCRIPTION
Precision Edge^®
The SY100E222L is a low-skew, low-jitter device capable
of receiving a high-speed LVECL/LVPECL input in either a
single-ended or differential configuration. For single-ended
configurations, a V_BB output reference is supplied by the
SY100E222L. A 2:1 input multiplexer selects from two
differential input pairs by means of the CLK_SEL input select.
The internal programmable divider for each of the four
banks generates a ÷1 or ÷2 frequency of the selected input.
The ÷1/÷2 divider outputs can be asynchronously
synchronized with the master reset (MR) input so that the
outputs will start out in a known state.
The 15 total outputs are partitioned into four independently
selected output banks in a 2/3/4/6 fanout configuration. Each
of the four banks can independently select the ÷1 or ÷2
output frequency by means of the four separate frequency
select pins (FSELA-FSELD) inputs.
The SY100E222L is pin-for-pin compatible with the
MC100LVE222FA device.
The SY100E222L is part of a Micrel’s Precision Edge™
product family. For other integrated clock divider plus fanout
buffer options, consider Micrel’s SY89200 family.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
CROSS REFERENCE TABLE
Micrel Part Number
SY100E222LTI
SY100E222LTI TR
ON Semiconductor
MC100LVE222FA
MC100LVE222FAR2
Rev.: B Amendment: /0
1
Issue Date: March 2006