PL138-28 Datasheet, PDF (1/11 Pages) Micrel Semiconductor – 2.5V-3.3V Low-Skew 1-2 Differential PECL Fanout Buffer

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 1
Q0B 2
8 V_CC
7 CLK-IN0
Q1 3
6 CLK-IN0B
Q1B 4
5 V_EE
8-Lead SOIC or TSSOP Package
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax [phone] • www.micrel.com Rev 11/26/13 Page 1