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PL123-05NSC Datasheet, PDF (1/8 Pages) Micrel Semiconductor – Low Skew Fanout Buffer | |||
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FE AT UR E S
ï· Output fanout buffer for DC to 134MHz
ï· Output Options:
o 1:5 output fanout with PL123-05
o 1:9 output fanout with PL123-09
ï· Low power consumption for portable applications
ï· Low input-output delay
ï· Output-Output skew less than 250ps
ï· Low Additive Phase Jitter of 60fs RMS
ï· 2.5V to 3.3V, ±10% operation
ï· 1.8V ±10% operation up to 67MHz
ï· Operating temperature range from -40°C to 85°C
ï· Available in 16-Pin SOP (PL123-09) and 8-Pin
SOP (PL123-05). Both are GREEN/RoHS packag-
es.
PL123-05N/-09N
Low Skew Fanout Buffer
DESCRIPTION
The PL123-05N and PL123-09N are a low-cost
fanout buffers for distributing high-speed clocks with
low output to output skew and preserving low noise
properties. The fanout buffers accept an input from
DC to 134MHz and provide 5 or 9 outputs of the same
frequency. A typical PL123-09N application for driving
SDRAM in PC systems would use eight outputs to
drive two DIMMs, or four SO-DIMMs, with the re-
maining output used for driving an external feed-
back to a PLL. A typical PL123-05N application is
to fanout a low noise CMOS clock oscillator to 5
low noise CMOS clocks.
These parts are not intended for 5V input-tolerant ap-
plications.
BLOCK DIAGRAM AND PACKAGE PINOUT
REF
REF
CLK1
CLK2
CLK3
CLK4
CLK5
CLK1
CLK2
CLK3
CLK4
CLK5
CLK6
CLK7
CLK8
CLK9
REF
CLK1
CLK2
GND
1
8
2
7
3
6
4
5
SOP-8L
CLK5
CLK4
VDD
CLK3
REF 1
CLK1 2
CLK2 3
VDD 4
GND 5
CLK3 6
CLK4 7
VDD 8
16 CLK9
15 CLK8
14 CLK7
13 VDD
12 GND
11 CLK6
10 CLK5
9 GND
SOP-16L
Micrel Inc. ⢠2180 Fortune Drive ⢠San Jose, CA 95131 ⢠USA ⢠tel +1(408) 944-0800 ⢠fax +1(408) 474-1000 ⢠www.micrel.com Rev 03/15/12 Page 1
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