sy89230u Micrel Semiconductor, sy89230u Datasheet - Page 14

• Manufacturer Part Number: sy89230u
• Description: 3.2ghz Precision, Lvpecl ?3, ?5 Clock Divider
• Manufacturer: Micrel Semiconductor

PECL Output Interface Applications
PECL has a high input impedance, a very low output
impedance (open emitter), and a small signal swing
which results in low EMI. PECL is ideal for driving
50Ω- and 100Ω-controlled impedance transmission
lines. There are several techniques for terminating
the PECL output: parallel termination-thevenin
equivalent, parallel termination (3-resistor), and AC-
coupled termination. Unused output pairs may be
left
be terminated, or balanced.
Related Product and Support Documentation
November 2007
Part Number
SY89228U
SY89229U
SY89231U
HBW Solutions
floating. However, single-ended outputs must
Figure 5a. Parallel Termination-Thevenin
Function
1GHz Precision, LVPECL ÷3, ÷5 Clock
Divider with Fail-Safe Input and Internal
Termination
1GHz Precision, LVDS ÷3, ÷5 Clock Divider
with Fail-Safe Input and Internal Termination
3.2GHz Precision, LVDS ÷3, ÷5 Clock
Divider
MLF
New Products and Applications
Equivalent
®
Application Note
14
Datasheet Link
www.amkor.com/products/notes_papers/MLFAppNote.pdf
www.micrel.com/product-info/products/solutions.shtml
Figure 5b. Parallel Termination
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