PL133-27

Low-Power, 1.62V to 3.63V, 1MHz To 150MHz, 1:2 Fanout Buffer IC

FEATURES DESCRIPTION
 2 LVCMOS Outputs The PL133-27 is an advanced fanout buffer design for
 Input/Output Frequency: 1MHz to 150MHz high performance, low-power, small form-factor
 Supports LVCMOS or Sine Wave Input Clock applications. The PL133-27 accepts a reference
 Extremely low additive Jitter clock input of 1MHz to 150MHz and produces two
 8 mA Output Drive Strength outputs of the same frequency. Reference clock
 Low Current Consumption inputs may be LVCMOS or sine-wave signals (the
 Single 1.8V, 2.5V, or 3.3V, ±10% Power Supply inputs are internally AC-coupled). PL133-27 is
designed to fit in a small 2 x 1.3 x 0.6mm DFN
 Operating Temperature Range
package, and offers the best phase noise and jitter
o 0°C to 70°C (Commercial)
performance and lowest power consumption of any
o -40C to 85C (Industrial)
comparable IC.
 Available in DFN-6L GREEN/RoHS Compliant
Packages

PACKAGE PIN CONFIGURATION

FIN 1 6 OE
CLK1 2 5 VDD
GND 3 4 CLK0
DFN-6L
(2.0 x 1.3 x 0.6mm)

BLOCK DIAGRAM

CLK0
FIN
CLK1
OE

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 09/13/13 Page 1
 PL133-27
Low-Power, 1.62V to 3.63V, 1MHz To 150MHz, 1:2 Fanout Buffer IC

PACKAGE PIN ASSIGNMENT

Package Pin #
Name Type Description
DFN-6L
FIN 1 I Reference clock input
CLK1 2 O Clock output
GND 3 P GND connection
CLK0 4 O Clock output
VDD 5 P V DD connection
OE 6 I Output enable input

LAYOUT RECOMMENDATIONS
The following guidelines are to assist you with a performance optimized PCB design:

Signal Integrity and Termination Considerations Decoupling and Power Supply Considerations
- Keep traces short! - Place decoupling capacitors as close as possible to
the V DD pin(s) to limit noise from the power supply
- Trace = Inductor. With a capacitive load this equals
ringing! - Multiple V DD pins should be decoupled separately
for best performance.
- Long trace = Transmission Line. Without proper
termination this will cause reflections (looks like ringing). - Addition of a ferrite bead in series with V DD can
help prevent noise from other board sources
- Design long traces as “striplines” or “microstrips” with
defined impedance. - Value of decoupling capacitor is frequency
- Match trace at one side to avoid reflections bouncing dependant. Typical values to use are 0.1F for
back and forth. designs using crystals < 50MHz and 0.01F for
designs using crystals > 50MHz.

Typical CMOS termination

Place Series Resistor as close as possible to CMOS output
CMOS Output Buffer To CMOS Input
(Typical buffer impedance 20Ω)
50Ω line

Series Resistor
Use value to match output buffer impedance to
50Ω trace. Typical value 30Ω

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 09/13/13 Page 2
 PL133-27
Low-Power, 1.62V to 3.63V, 1MHz To 150MHz, 1:2 Fanout Buffer IC

ELECTRICAL SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
PARAMETERS SYMBOL MIN. MAX. UNITS
Supply Voltage Range V DD -0.5 4.6 V
Input Voltage Range VI -0.5 V DD +0.5 V
Output Voltage Range VO -0.5 V DD +0.5 V
Storage Temperature TS -65 150 C
Ambient Operating Temperature* -40 85 C
Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent damage to the device
and affect product reliability. These conditions represent a stress rating only, and functional operations of the device at these or any other conditions above
the operational limits noted in this specification is not implied. *Operating temperature is guaranteed by design. Parts are tested to commercial grade only.

AC SPECIFICATIONS
PARAMETERS CONDITIONS MIN. TYP. MAX. UNITS

@ V DD = 2.5V and 3.3V 150 MHz

Input (FIN) Frequency 1MHz
@ V DD = 1.8V 65
Input (FIN) Signal Amplitude Internally AC coupled 0.8 V DD V PP
Output Rise Time 15pF Load, 10/90%V DD , 3.3V 2 3 ns
Output Fall Time 15pF Load, 90/10%V DD , 3.3V 2 3 ns
Output to Output Skew 500 ps
Duty Cycle Input Duty Cycle is 50% 45 50 55 %

DC SPECIFICATIONS
PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS

V DD = 3.3V, 25MHz, No Load 1.8 mA

Supply Current, Dynamic I DD V DD = 2.5V, 25MHz, No Load 1.3 mA
V DD = 1.8V, 25MHz, No Load 0.8 mA
Operating Voltage V DD 1.62 3.63 V
Output Low Voltage V OL I OL = +4mA, V DD = 3.3V 0.4 V
Output High Voltage V OH I OH = -4mA, V DD = 3.3V 2.4 V
V OL = 0.4V, V OH = 2.4V,
Output Current I OSD 8 mA
V DD = 3.3V

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 09/13/13 Page 3
 PL133-27
Low-Power, 1.62V to 3.63V, 1MHz To 150MHz, 1:2 Fanout Buffer IC

NOISE CHARACTERISTICS
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT
V DD=3.3V, Frequency=26MHz
130 fs
Offset=12KHz ~ 5MHz
Additive Phase Jitter
V DD=3.3V, Frequency=100MHz
150 fs
Offset=12KHz ~ 20MHz

PL133-27 Additive Phase Jitter:

VDD=3.3V, CLK=26MHz, Integration Range 12KHz to 5MHz: 0.127ps typical.

REF Input PL133-27 Output

-70

-80

-90

-100
Phase Noise (dBc/Hz)

-110

-120

-130

-140

-150

-160

-170
10 100 1000 10000 100000 1000000 10000000
Offset Frequency (Hz)

When a buffer is used to pass a signal then the buffer will add a little bit of its own noise. The phase noise on the
output of the buffer will be a little bit more than the phase noise in the input signal. To quantify the noise addition in
the buffer we compare the Phase Jitter numbers from the input and the output. The difference is called "Additive
Phase Jitter". The formula for the Additive Phase Jitter is as follows:
2 2
Additive Phase Jitter = (Output Phase Jitter) - (Input Phase Jitter)

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 09/13/13 Page 4
 PL133-27
Low-Power, 1.62V to 3.63V, 1MHz To 150MHz, 1:2 Fanout Buffer IC

PACKAGE DRAWINGS (GREEN PACKAGE COMPLIANT)

DFN-6L
D1
Dimension in MM e
Symbol D
Min. Max. b
Pin 6 ID
A 0.45 0.60 Chamfer
A1 0.00 0.05
A3 0.152 0.152
E1 E
b 0.15 0.25
e 0.40BSC
D 1.25 1.35 L
E 1.95 2.05
Pin1 Dot
D1 0.75 0.85
E1 0.95 1.05 A A1
L 0.20 0.30 A3

ORDERING INFORMATION (GREEN PACKAGE)

For part ordering, please contact our Sales Department:
2180 Fortune Drive, San Jose, CA 95131, USA
Tel: (408) 944-0800 Fax: (408) 474-1000

PART NUMBER
The order number for this device is a combination of the following:
Part number, Package type and Operating temperature range

PL133-27 X X - R
Part Number R=Tape and Reel

Package Type Temperature Range

G=DFN-6L C=Commercial (0°C to 70°C)
I=Industrial (-40°C to 85°C)

Part/Order Number Marking Package Option

PL133-27GC-R H27
6-Pin DFN (Tape and Reel)
PL133-27GI-R LLL
*Note: LLL designates lot number

Micrel Inc., reserves the right to make changes in its products or specifications, or both at any time without notice. The information furnished by Micrel is believed to be accurate
and reliable. However, Micrel makes no guarantee or warranty concerning the accuracy of said information and shall not be responsible for any loss or damage of whatever
nature resulting from the use of, or reliance upon this product.
LIFE SUPPORT POLICY: Micrel’s products are not authorized for use as critical components in life support devices or systems without the express written approval of the
President of Micrel Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 09/13/13 Page 5