PL133-67OI

PL133-67
Low-Power 2.25V to 3.63V DC to 150MHz 1:6 Fanout Buffer IC
Mic rel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1(408) 944 -0800 fax +1(408) 474-1000 www.micrel.com Rev 03/18/11 Page 1
FEATURES
1:6 LVCMOS output fanout buffer for DC to 150MHz
8mA Output Drive Strength
Low power consumption for portable applications
Low input-output delay
Output-Output skew less than 250ps
Low Additive Phase Jitter of 60fs RMS
2.5V to 3.3V, ±10% operation
Operating temperature range from -40°C to 85°C
Available in 16-Pin SOP GREEN/RoHS package
DESCRIPTION
The PL133-67 is an advanced fanout buffer design for
high performance, low-power, small form factor applica-
tions. The PL133-67 accepts a reference clock input from
DC to 150MHz and provides 6 outputs of the same fre-
quency.
The PL133-67 is offered in a TSSOP-16L package and it
offers the best phase noise, additive jitter performance,
and lowest power consumption of any comparable IC.
The PL133-67 outputs can be disabled to a high imped-
ance (tri-state) by pulling low the OE pin. When the OE pin
is high, the outputs are enabled and follow the REF input
signal. When the OE pin is left open, a pull-up resistor on
the chip will default the OE pin to logic 1 so the outputs are
enabled.
BLOCK DIAGRAM AND PACKAGE PINOUT
REF
CLK1
CLK2
CLK3
CLK4
CLK5
CLK6
1REF
DNC
CLK0
VDD
DNC
DNC
CLK5
VDD
GND
CLK4
CLK3
GND
10
11
12
13
14
15
16
98
7
6
5
4
3
2
OE^
CLK2
CLK1
GND
TSSOP-16L
OE
PL133-67
Low-Power 2.25V to 3.63V DC to 150MHz 1:6 Fanout Buffer IC
Mic rel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax +1(408) 474-1000 www.micrel.com Rev 03/18/11 Page 2
PIN DESCRIPTIONS
Name
TSSOP-16L
Type
Description
REF
1
I
Input reference frequency.
CLK0
3
O
Buffered clock output
CLK1
6
O
Buffered clock output
CLK2
7
O
Buffered clock output
CLK3
10
O
Buffered clock output
CLK4
11
O
Buffered clock output
CLK5
14
O
Buffered clock output
VDD
4, 13
P
VDD connection
GND
5, 9, 12
P
GND connection
OE
8
I
Output Enable Control Input with 130K Pull-Up
DNC
2, 8, 15, 16
-
Do Not Connect
LAYOUT RECOMMENDATIONS
The following guidelines are to assist you with a performance optimized PCB d esign:
Signal Integrity and Termination
Considerations
- Keep traces short!
- Trace = Inductor. With a capacitive load this equals
ringing!
- Long trace = Transmission Line. Without proper termi-
nation this will cause reflections ( looks like ringing ).
- Design long traces (> 1 inch) as “striplines or
“microstripswith defined impedance.
- Match trace at one side to avoid reflections bouncing
back and forth.
Decoupling and Power Supply
Considerations
- Place decoupling capacitors as close as possible
to the VDD pin(s) to limit noise from the power
supply
- Addition of a ferrite bead in series with VDD can
help prevent noise from other board sources
- Value of decoupling capacitor is frequency de-
pendant. Typical values to use are 0.1F for de-
signs using frequencies < 50MHz and 0.01F for
designs using frequencies > 50MHz.
Typical CMOS termination
Place Series Resistor as close as possible to CMOS output
CMOS Output Buffer
( Typical buffer impedance 20 ohm)
To CMOS Input
Connect a 33 ohm series resistor at each of the output clocks to
enhance the stability of the output signal
50 ohm line
PL133-67
Low-Power 2.25V to 3.63V DC to 150MHz 1:6 Fanout Buffer IC
Mic rel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax +1(408) 474-1000 www.micrel.com Rev 03/18/11 Page 3
ABSOLUTE MAXIMUM CONDITIONS
Supply Voltage to Ground Potential ...... 0.5V to 4.6V
DC Input Voltage ............................ V
SS
0.5V to 4.6V
Storage Temperature ..........................65°C to 150°C
Junction Temperature……………………….. 150°C
Static Discharge Voltage
(per MIL-STD-883, Method 3015)………..> 2000V
OPERATING CONDITIONS
Parameter
Description
Unit
V
DD
Supply Voltage
V
T
A
Commercial Operating Temperature (ambient te mperature)
C
Industrial Operating Temperature (ambient temperature)
C
C
L
Load Capacitance, below 100 MHz
pF
Load Capacitance between 100 MHz and 134 MHz
pF
Load Capacitance, above 134 MHz
pF
C
IN
Input Capacitance
pF
REF, CLK[1:6]
Operating Frequency, Input=Output
MHz
t
PU
Power-up time for all V
DD
s to reach minimum specified voltage
(power ramps must be monotonic)
ms
ELECTRICAL CHARACTERISTICS (Commercial and Industrial Temperature Devices)
Parameter
Description
Test Conditions
Max.
Unit
V
IL
Input LOW Voltage
[1]
0.8
V
V
IH
Input HIGH Voltage
[1]
V
I
IL
Input LOW Current
V
IN
= 0V
50
µA
I
IH
Input HIGH Current
V
IN
= V
DD
100
µA
V
OL
Output LOW Voltage
[2]
I
OL
= 8 mA
0.4
V
V
OH
Output HIGH Voltage
[2]
I
OH
= 8 mA
V
I
DD
Supply Current
66.67MHz with unloaded outputs
32
mA
R
PU
OE Pin Pull-Up Resistance
K

PL133-67OI

Mfr. #:
Manufacturer:
Microchip Technology / Micrel
Description:
Clock Buffer 1:6 Low Skew Fanout Buffer
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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