Not Recommended for New Design, Use PI3EQX5801
Pb
Lead-free Green
A product Line of
Diodes Incorporated
PI2EQX4401D
2.5Gbps x1 Lane Serial PCI-Express Repeater/Equalizer with Clock Buffer & Signal Detect Feature
Features
Description
¼¼ One high-speed PCI-Express lane
Diodes' PI2EQX4401D is a low power, PCI-Express compliant
signal re-driver. The device provides programmable equalization,
amplification, and de-emphasis by using 4 select bits, SEL[0:3],
to optimize performance over a variety of physical mediums by
reducing Inter-symbol interference. PI2EQX4401D supports two
100Ω Differential CML data I/O’s between the Protocol ASIC to
a switch fabric, across a backplane, or extends the signals across
other distant data pathways on the user’s platform.
The integrated equalization circuitry provides flexibility with
signal integrity of the PCI-express signal before the re-driver.
Whereas the integrated de-emphasis circuitry provides flexibility
with signal integrity of the PCI-express signal after the Re-Driver.
A low-level input signal detection and output squelch function
is provided for both channels. Each channel operates fully
independently. When a channel is enabled (EN_x=1) and
operating, that channel's input signal level (on xl+/-) determines
whether the output is enabled. If the input level of the channel
falls below the active threshold level (Vth-) then the output driver
switches off, and the pin is pulled to VDD via a high impedance
resistor.
In addition to providing signal re-conditioning, Diodes'
PI2EQX4401D also provides power management Stand-by mode
operated by a Bus Enable pin. A differential clock buffer is provided
for test and other system requirements. This clock function is not
used by the data channels.
¼¼ Adjustable Transmiter De-Emphasis & Amplitude
¼¼ Adjustable Receiver Equalization
¼¼ One Spread Spectrum Reference Clock Buffer Output
¼¼ Input Signal Level Detect and Output Squelch
¼¼ 100Ω Differential CML I/O’s
¼¼ Low Power (100mW per Channel)
¼¼ Stand-by Mode – Power Down State
¼¼ VDD Operating Range: 1.8V ±0.1V
¼¼ Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
¼¼ Halogen and Antimony Free. “Green” Device (Note 3)
¼¼ For automotive applications requiring specific change control
(i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and
manufactured in IATF 16949 certified facilities), please contact
us or your local Diodes representative.
https://www.diodes.com/quality/product-definitions/
¼¼ Packaging (Pb-free & Green):
— 36-pad TQFN (ZF36)
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain
