SY100E222L Datasheet, PDF (1/6 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
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.
M9999-111605
[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
APPLICATIONS
s SONET/SDH channel applications
s Fibre Channel multi-channel applications
s Gigabit Ethernet multi-channel applications
Rev.: B Amendment: /0
1
Issue Date: November 2005