|
|
PDF PL138-28 Data sheet ( Hoja de datos )
| Número de pieza | PL138-28 | |
| Descripción | 2.5V-3.3V Low-Skew 1-2 Differential PECL Fanout Buffer | |
| Fabricantes | Micrel | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de PL138-28 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
|
No Preview Available !
PL138-28
2.5V-3.3V Low-Skew 1-2 Differential PECL Fanout Buffer
FEATURES
• Two differential 2.5V/3.3V LVPECL output pairs.
• Output Frequency: ≤ 1 GHz.
• Translates any standard single-ended or differential
input format to LVPECL output. It can accept the
following standard input formats and more:
o LVPECL, LVCMOS, LVDS, HCSL, SSTL,
LVHSTL, CML.
• Output Skew: 25ps (typ.).
• Part-to-part skew: 140ps (typ.).
• Propagation delay: 1.5ns (typ.).
• Additive Jitter: <100 fs (typ.).
• Operating Supply Voltage: 2.375V ~ 3.63V.
• Operating temperature range from -40°C to 85°C.
• Package availability: SOP-8L and TSSOP-8L.
DESCRIPTION
The PL138-28 is a high performance low-cost
1: 2 outputs Differential PECL fanout buffer.
The family of Differential LVPECL buffers are designed to
operate from a single power supply of 2.5V±5% or 3.3V±10%.
The differential input pair is designed to accept most standard
input signal levels, using an appropriate resistor bias network,
and produce a high quality set of outputs with the lowest
possible skew on the outputs, which is guaranteed for part-to-
part or lot-to lot skew.
Designed to fit in a small form-factor package, PL138
family offers up to 1GHz of output operation with very
low-power consumption, and lowest additive jitter of any
comparable device. The Output Enable feature, when
activated, allows the IC to consume less than 10µA of
current.
BLOCK DIAGRAM
CLK- IN0
CLK-IN0B
Q0
QB0
Q1
QB1
Q0
Q0B
1
2
8 VCC
7 CLK-IN0
Q1 3
6 CLK-IN0B
Q1B 4
5 VEE
8-Lead SOIC or TSSOP Package
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944-0800 • fax +1(408) 474-1000 • www.micrel.com Rev 11/26/13 Page 1
1 page  
PL138-28
2.5V-3.3V Low-Skew 1-2 Differential PECL Fanout Buffer
NOISE CHARACTERISTICS (Commercial and Industrial Temperature Devices)
Parameter
Description
Test Conditions
Min. Typ. Max. Unit
tAPJ Additive Phase Jitter
V DD=3.3V, Frequency=622.08MHz
Offset=12KHz ~ 20MHz
21 fs
REF Input PL138-28 Output
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
100
1000
10000
100000
Offset Frequency (Hz)
1000000
10000000
100000000
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:
22
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 11/26/13 Page 5
5 Page 
PL138-28
2.5V-3.3V Low-Skew 1-2 Differential PECL Fanout Buffer
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
PL138-28 X X - R
Part Number
R=Tape and Reel
Package Type
S=SOP-8
O=TSSOP-8
Part/Order Number
PL138-28SC-R
PL138-28OC-R
*Note: LLLLL designates lot number
Marking
P138-28
SC
LLLLL
P138-28
OC
LLLLL
Temperature Range
C= Commercial (0°C to +70°C)
I= Industrial (-40°C to +85°C)
Package Option
8-Pin SOP (Tape and Reel)
8-Pin TSSOP (Tape and Reel)
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 11/26/13 Page 11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet PL138-28.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| PL138-28 | 2.5V-3.3V Low-Skew 1-2 Differential PECL Fanout Buffer | Micrel |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |